Compare commits

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No commits in common. "main" and "v1.2.1" have entirely different histories.
main ... v1.2.1

147 changed files with 3533 additions and 10148 deletions

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@ -5,30 +5,6 @@
"imageSize": 100, "imageSize": 100,
"commit": false, "commit": false,
"contributors": [ "contributors": [
{
"login": "piksel",
"name": "nils måsén",
"avatar_url": "https://avatars2.githubusercontent.com/u/807383?v=4",
"profile": "https://piksel.se",
"contributions": [
"code",
"doc",
"maintenance",
"review"
]
},
{
"login": "simskij",
"name": "Simon Aronsson",
"avatar_url": "https://avatars0.githubusercontent.com/u/1596025?v=4",
"profile": "http://simme.dev",
"contributions": [
"code",
"doc",
"maintenance",
"review"
]
},
{ {
"login": "Codelica", "login": "Codelica",
"name": "James", "name": "James",
@ -297,6 +273,18 @@
"code" "code"
] ]
}, },
{
"login": "simskij",
"name": "Simon Aronsson",
"avatar_url": "https://avatars0.githubusercontent.com/u/1596025?v=4",
"profile": "http://simme.dev",
"contributions": [
"code",
"maintenance",
"review",
"doc"
]
},
{ {
"login": "Ansem93", "login": "Ansem93",
"name": "Ansem93", "name": "Ansem93",
@ -520,6 +508,16 @@
"doc" "doc"
] ]
}, },
{
"login": "piksel",
"name": "nils måsén",
"avatar_url": "https://avatars2.githubusercontent.com/u/807383?v=4",
"profile": "https://piksel.se",
"contributions": [
"doc",
"code"
]
},
{ {
"login": "arnested", "login": "arnested",
"name": "Arne Jørgensen", "name": "Arne Jørgensen",
@ -694,9 +692,7 @@
"avatar_url": "https://avatars1.githubusercontent.com/u/1371562?v=4", "avatar_url": "https://avatars1.githubusercontent.com/u/1371562?v=4",
"profile": "https://github.com/ksurl", "profile": "https://github.com/ksurl",
"contributions": [ "contributions": [
"doc", "doc"
"code",
"infra"
] ]
}, },
{ {
@ -752,130 +748,6 @@
"contributions": [ "contributions": [
"doc" "doc"
] ]
},
{
"login": "DasSkelett",
"name": "DasSkelett",
"avatar_url": "https://avatars.githubusercontent.com/u/28812678?v=4",
"profile": "https://github.com/DasSkelett",
"contributions": [
"code"
]
},
{
"login": "zenjabba",
"name": "zenjabba",
"avatar_url": "https://avatars.githubusercontent.com/u/679864?v=4",
"profile": "https://github.com/zenjabba",
"contributions": [
"doc"
]
},
{
"login": "djquan",
"name": "Dan Quan",
"avatar_url": "https://avatars.githubusercontent.com/u/3526705?v=4",
"profile": "https://quan.io",
"contributions": [
"doc"
]
},
{
"login": "modem7",
"name": "modem7",
"avatar_url": "https://avatars.githubusercontent.com/u/4349962?v=4",
"profile": "https://github.com/modem7",
"contributions": [
"doc"
]
},
{
"login": "hypnoglow",
"name": "Igor Zibarev",
"avatar_url": "https://avatars.githubusercontent.com/u/4853075?v=4",
"profile": "https://github.com/hypnoglow",
"contributions": [
"code"
]
},
{
"login": "patricegautier",
"name": "Patrice",
"avatar_url": "https://avatars.githubusercontent.com/u/38435239?v=4",
"profile": "https://github.com/patricegautier",
"contributions": [
"code"
]
},
{
"login": "jamesmacwhite",
"name": "James White",
"avatar_url": "https://avatars.githubusercontent.com/u/8067792?v=4",
"profile": "http://jamesw.link/me",
"contributions": [
"doc"
]
},
{
"login": "Foxite",
"name": "Dirk Kok",
"avatar_url": "https://avatars.githubusercontent.com/u/20421657?v=4",
"profile": "https://ko-fi.com/foxite",
"contributions": [
"code"
]
},
{
"login": "EDIflyer",
"name": "EDIflyer",
"avatar_url": "https://avatars.githubusercontent.com/u/13610277?v=4",
"profile": "https://github.com/EDIflyer",
"contributions": [
"doc"
]
},
{
"login": "jauderho",
"name": "Jauder Ho",
"avatar_url": "https://avatars.githubusercontent.com/u/13562?v=4",
"profile": "https://github.com/jauderho",
"contributions": [
"code"
]
},
{
"login": "andriibratanin",
"name": "Andrii Bratanin",
"avatar_url": "https://avatars.githubusercontent.com/u/20169213?v=4",
"profile": "https://github.com/andriibratanin"
},
{
"login": "IAmTamal",
"name": "Tamal Das ",
"avatar_url": "https://avatars.githubusercontent.com/u/72851613?v=4",
"profile": "https://tamal.vercel.app/",
"contributions": [
"doc"
]
},
{
"login": "testwill",
"name": "guangwu",
"avatar_url": "https://avatars.githubusercontent.com/u/8717479?v=4",
"profile": "https://github.com/testwill",
"contributions": [
"doc"
]
},
{
"login": "nothub",
"name": "Florian Hübner",
"avatar_url": "https://avatars.githubusercontent.com/u/48992448?v=4",
"profile": "http://hub.lol",
"contributions": [
"doc",
"code"
]
} }
], ],
"contributorsPerLine": 7, "contributorsPerLine": 7,
@ -884,6 +756,5 @@
"repoType": "github", "repoType": "github",
"repoHost": "https://github.com", "repoHost": "https://github.com",
"commitConvention": "none", "commitConvention": "none",
"skipCi": true, "skipCi": true
"commitType": "docs"
} }

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@ -1,14 +0,0 @@
root = true
[*]
end_of_line = lf
insert_final_newline = true
charset = utf-8
[*.css]
indent_style = space
indent_size = 2
[{go.mod,go.sum,*.go}]
indent_style = tab
indent_size = 4

2
.github/FUNDING.yml vendored Normal file
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@ -0,0 +1,2 @@
custom: https://www.amazon.com/hz/wishlist/ls/F94JJV822VX6
github: simskij

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@ -1,71 +0,0 @@
name: 🐛 Bug report
description: Create a report to help us improve
labels: ["Priority: Medium, Status: Available, Type: Bug"]
body:
- type: markdown
attributes:
value: Before submitting your issue, please make sure you're using the containrrr/watchtower:latest image. If not, switch to this image prior to posting your report. Other forks, or the old `v2tec` image are **not** supported.
- type: textarea
id: description
attributes:
label: Describe the bug
description: A clear and concise description of what the bug is
validations:
required: true
- type: textarea
id: reproduce
attributes:
label: Steps to reproduce
description: Steps to reproduce the behavior
value: |
1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error
validations:
required: true
- type: textarea
id: expected
attributes:
label: Expected behavior
description: A clear and concise description of what you expected to happen.
validations:
required: true
- type: textarea
id: screenshots
attributes:
label: Screenshots
description: Please add screenshots if applicable
validations:
required: false
- type: textarea
attributes:
label: Environment
description: We would want to know the following things
value: |
- Platform
- Architecture
- Docker Version
validations:
required: true
- type: textarea
attributes:
label: Your logs
description: Paste the logs from running watchtower with the `--debug` option.
render: text
validations:
required: true
- type: textarea
attributes:
label: Additional context
description: Add any other context about the problem here.
validations:
required: false

41
.github/ISSUE_TEMPLATE/bug_report.md vendored Normal file
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@ -0,0 +1,41 @@
---
name: Bug report
about: Create a report to help us improve
title: ''
labels: 'Priority: Medium, Status: Available, Type: Bug'
assignees: ''
---
**Describe the bug**
A clear and concise description of what the bug is.
**To Reproduce**
Steps to reproduce the behavior:
1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error
**Expected behavior**
A clear and concise description of what you expected to happen.
**Screenshots**
If applicable, add screenshots to help explain your problem.
**Environment**
- Platform
- Architecture
- Docker version
<details>
<summary><b> Logs from running watchtower with the <code>--debug</code> option </b></summary>
```
```
</details>
**Additional context**
Add any other context about the problem here.

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@ -0,0 +1,20 @@
---
name: Feature request
about: Suggest an idea for this project
title: ''
labels: 'Priority: Low, Status: Available, Type: Enhancement'
assignees: ''
---
**Is your feature request related to a problem? Please describe.**
A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
**Describe the solution you'd like**
A clear and concise description of what you want to happen.
**Describe alternatives you've considered**
A clear and concise description of any alternative solutions or features you've considered.
**Additional context**
Add any other context or screenshots about the feature request here.

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@ -1,36 +0,0 @@
name: 💡 Feature request
description: Have a new idea/feature ? Please suggest!
labels: ["Priority: Low, Status: Available, Type: Enhancement"]
body:
- type: textarea
id: description
attributes:
label: Is your feature request related to a problem? Please describe.
description: A clear and concise description of what the problem is. Ex. I'm always frustrated when [...]
validations:
required: true
- type: textarea
id: solution
attributes:
label: Describe the solution you'd like
description: A clear and concise description of what you want to happen.
validations:
required: true
- type: textarea
id: alternatives
attributes:
label: Describe alternatives you've considered
description: A clear and concise description of any alternative solutions or features you've considered.
validations:
required: true
- type: textarea
id: extrainfo
attributes:
label: Additional context
description: Add any other context or screenshots about the feature request here.
validations:
required: false

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@ -1,21 +0,0 @@
# To get started with Dependabot version updates, you'll need to specify which
# package ecosystems to update and where the package manifests are located.
# Please see the documentation for all configuration options:
# https://docs.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
version: 2
updates:
- package-ecosystem: "github-actions" # See documentation for possible values
directory: "/" # Location of package manifests
schedule:
interval: "weekly"
- package-ecosystem: "gomod" # See documentation for possible values
directory: "/" # Location of package manifests
schedule:
interval: "weekly"
- package-ecosystem: "docker" # See documentation for possible values
directory: "/dockerfiles" # Location of package manifests
schedule:
interval: "weekly"

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@ -1,17 +0,0 @@
<!--
Thank you for contributing to the watchtower project! 🙏
We truly appreciate all the contributions we get from the community.
To make your PR experience as smooth as possible, make sure that you
include the following in your PR:
- What your PR contributes
- Which issues it solves (preferrably using auto closing instructions like "closes #123".
- Tests that verify the code your contributing
- Updates to the documentation
Thank you again! ✨
-->

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@ -31,7 +31,7 @@ jobs:
steps: steps:
- name: Checkout repository - name: Checkout repository
uses: actions/checkout@v4 uses: actions/checkout@v2
with: with:
# We must fetch at least the immediate parents so that if this is # We must fetch at least the immediate parents so that if this is
# a pull request then we can checkout the head. # a pull request then we can checkout the head.
@ -44,7 +44,7 @@ jobs:
# Initializes the CodeQL tools for scanning. # Initializes the CodeQL tools for scanning.
- name: Initialize CodeQL - name: Initialize CodeQL
uses: github/codeql-action/init@v3 uses: github/codeql-action/init@v1
with: with:
languages: ${{ matrix.language }} languages: ${{ matrix.language }}
# If you wish to specify custom queries, you can do so here or in a config file. # If you wish to specify custom queries, you can do so here or in a config file.
@ -55,7 +55,7 @@ jobs:
# Autobuild attempts to build any compiled languages (C/C++, C#, or Java). # Autobuild attempts to build any compiled languages (C/C++, C#, or Java).
# If this step fails, then you should remove it and run the build manually (see below) # If this step fails, then you should remove it and run the build manually (see below)
- name: Autobuild - name: Autobuild
uses: github/codeql-action/autobuild@v3 uses: github/codeql-action/autobuild@v1
# Command-line programs to run using the OS shell. # Command-line programs to run using the OS shell.
# 📚 https://git.io/JvXDl # 📚 https://git.io/JvXDl
@ -69,4 +69,4 @@ jobs:
# make release # make release
- name: Perform CodeQL Analysis - name: Perform CodeQL Analysis
uses: github/codeql-action/analyze@v3 uses: github/codeql-action/analyze@v1

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@ -1,12 +0,0 @@
name: Auto approve dependabot PRs
on: pull_request_target
jobs:
auto-approve:
runs-on: ubuntu-latest
permissions:
pull-requests: write
if: github.actor == 'dependabot[bot]'
steps:
- uses: hmarr/auto-approve-action@v3

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@ -1,11 +1,6 @@
name: Greetings name: Greetings
on: on: [issues]
# Runs in the context of the target (containrrr/watchtower) repository, and as such has access to GITHUB_TOKEN
pull_request_target:
types: [opened]
issues:
types: [opened]
jobs: jobs:
greeting: greeting:

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@ -1,37 +0,0 @@
name: Publish Docs
on:
workflow_dispatch: { }
workflow_run:
workflows: [ "Release (Production)" ]
branches: [ main ]
types:
- completed
jobs:
publish-docs:
name: Publish Docs
runs-on: ubuntu-latest
steps:
- name: Checkout
uses: actions/checkout@v4
with:
fetch-depth: 0
- name: Set up Go
uses: actions/setup-go@v4
with:
go-version: 1.20.x
- name: Build tplprev
run: scripts/build-tplprev.sh
- name: Setup python
uses: actions/setup-python@v5
with:
python-version: '3.10'
cache: 'pip'
cache-dependency-path: |
docs-requirements.txt
- name: Install mkdocs
run: |
pip install -r docs-requirements.txt
- name: Generate docs
run: mkdocs gh-deploy --strict

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@ -12,59 +12,62 @@ jobs:
runs-on: ubuntu-latest runs-on: ubuntu-latest
steps: steps:
- name: Checkout - name: Checkout
uses: actions/checkout@v4 uses: actions/checkout@v2
with: with:
fetch-depth: 0 fetch-depth: 0
- name: Set up Go - name: Set up Go
uses: actions/setup-go@v4 uses: actions/setup-go@v2
with: with:
go-version: 1.20.x go-version: 1.15.x
- uses: dominikh/staticcheck-action@ba605356b4b29a60e87ab9404b712f3461e566dc #v1.3.0 - name: Install linter
with: run: |
version: "2023.1.6" go get -u golang.org/x/lint/golint
install-go: "false" # StaticCheck uses go v1.17 which does not support `any` - name: Lint files
run: |
golint -set_exit_status ./...
test: test:
name: Test name: Test
strategy: strategy:
fail-fast: false fail-fast: false
matrix: matrix:
go-version: go-version:
- 1.20.x - 1.15.x
platform: platform:
- ubuntu-latest
- macos-latest - macos-latest
- windows-latest - windows-latest
- ubuntu-latest
runs-on: ${{ matrix.platform }} runs-on: ${{ matrix.platform }}
steps: steps:
- name: Checkout - name: Checkout
uses: actions/checkout@v4 uses: actions/checkout@v2
with: with:
fetch-depth: 0 fetch-depth: 0
- name: Set up Go - name: Set up Go
uses: actions/setup-go@v4 uses: actions/setup-go@v2
with: with:
go-version: 1.20.x go-version: 1.15.x
- name: Run tests - name: Run tests
run: | run: |
go test -v -coverprofile coverage.out -covermode atomic ./... go test -v -coverprofile coverage.out -covermode atomic ./...
- name: Publish coverage - name: Publish coverage
uses: codecov/codecov-action@v3 uses: codecov/codecov-action@v1
with: with:
token: ${{ secrets.CODECOV_TOKEN }} token: ${{ secrets.CODECOV_TOKEN }}
build: build:
name: Build name: Build
runs-on: ubuntu-latest runs-on: ubuntu-latest
steps: steps:
- name: Checkout - name: Checkout
uses: actions/checkout@v4 uses: actions/checkout@v2
with: with:
fetch-depth: 0 fetch-depth: 0
- name: Set up Go - name: Set up Go
uses: actions/setup-go@v4 uses: actions/setup-go@v2
with: with:
go-version: 1.20.x go-version: 1.15.x
- name: Build - name: Build
uses: goreleaser/goreleaser-action@7ec5c2b0c6cdda6e8bbb49444bc797dd33d74dd8 #v3 uses: goreleaser/goreleaser-action@v2
with: with:
version: v0.155.0 version: v0.155.0
args: --snapshot --skip-publish --debug args: --snapshot --skip-publish --debug

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@ -1,59 +1,23 @@
name: Push to main name: Release (Develop)
on: on:
workflow_dispatch: {}
push: push:
branches: branches:
- main - main
jobs: jobs:
build: build:
runs-on: ubuntu-latest runs-on: ubuntu-latest
steps: steps:
- uses: actions/checkout@v4 - uses: actions/checkout@v2
with:
fetch-depth: 0 - uses: jerray/publish-docker-action@master
- name: Set up Go with:
uses: actions/setup-go@v4 username: ${{ secrets.DOCKERHUB_USERNAME }}
with: password: ${{ secrets.DOCKERHUB_PASSWORD }}
go-version: 1.20.x file: dockerfiles/Dockerfile.self-contained
- name: Build repository: containrrr/watchtower
run: ./build.sh tags: latest-dev
test:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- name: Set up Go
uses: actions/setup-go@v4
with:
go-version: 1.20.x
- name: Test
run: go test -v -coverprofile coverage.out -covermode atomic ./...
- name: Publish coverage
uses: codecov/codecov-action@v3
with:
token: ${{ secrets.CODECOV_TOKEN }}
publish:
needs:
- build
- test
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- name: Publish to Docker Hub
uses: jerray/publish-docker-action@87d84711629b0dc9f6bb127b568413cc92a2088e #master@2022-10-14
with:
username: ${{ secrets.DOCKERHUB_USERNAME }}
password: ${{ secrets.DOCKERHUB_PASSWORD }}
file: dockerfiles/Dockerfile.self-contained
repository: containrrr/watchtower
tags: latest-dev
- name: Publish to GHCR
uses: jerray/publish-docker-action@87d84711629b0dc9f6bb127b568413cc92a2088e #master@2022-10-14
with:
username: ${{ secrets.BOT_USERNAME }}
password: ${{ secrets.BOT_GHCR_PAT }}
file: dockerfiles/Dockerfile.self-contained
registry: ghcr.io
repository: containrrr/watchtower
tags: latest-dev

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@ -1,8 +1,9 @@
name: Release (Production) name: Release (Production)
on: on:
workflow_dispatch: {} release:
push: types:
- created
tags: tags:
- 'v[0-9]+.[0-9]+.[0-9]+' - 'v[0-9]+.[0-9]+.[0-9]+'
- '**/v[0-9]+.[0-9]+.[0-9]+' - '**/v[0-9]+.[0-9]+.[0-9]+'
@ -13,24 +14,26 @@ jobs:
runs-on: ubuntu-latest runs-on: ubuntu-latest
steps: steps:
- name: Checkout - name: Checkout
uses: actions/checkout@v4 uses: actions/checkout@v2
with: with:
fetch-depth: 0 fetch-depth: 0
- name: Set up Go - name: Set up Go
uses: actions/setup-go@v4 uses: actions/setup-go@v2
with: with:
go-version: 1.20.x go-version: 1.15.x
- uses: dominikh/staticcheck-action@ba605356b4b29a60e87ab9404b712f3461e566dc #v1.3.0 - name: Install linter
with: run: |
version: "2022.1.1" go get -u golang.org/x/lint/golint
install-go: "false" # StaticCheck uses go v1.17 which does not support `any` - name: Lint files
run: |
golint -set_exit_status ./...
test: test:
name: Test name: Test
strategy: strategy:
matrix: matrix:
go-version: go-version:
- 1.20.x - 1.15.x
platform: platform:
- ubuntu-latest - ubuntu-latest
- macos-latest - macos-latest
@ -38,13 +41,13 @@ jobs:
runs-on: ${{ matrix.platform }} runs-on: ${{ matrix.platform }}
steps: steps:
- name: Checkout - name: Checkout
uses: actions/checkout@v4 uses: actions/checkout@v2
with: with:
fetch-depth: 0 fetch-depth: 0
- name: Set up Go - name: Set up Go
uses: actions/setup-go@v4 uses: actions/setup-go@v2
with: with:
go-version: 1.20.x go-version: 1.15.x
- name: Run tests - name: Run tests
run: | run: |
go test ./... -coverprofile coverage.out go test ./... -coverprofile coverage.out
@ -57,29 +60,23 @@ jobs:
- lint - lint
env: env:
CGO_ENABLED: 0 CGO_ENABLED: 0
TAG: ${{ github.ref_name }} TAG: ${{ github.event.release.tag_name }}
steps: steps:
- name: Checkout - name: Checkout
uses: actions/checkout@v4 uses: actions/checkout@v2
with: with:
fetch-depth: 0 fetch-depth: 0
- name: Set up Go - name: Set up Go
uses: actions/setup-go@v4 uses: actions/setup-go@v2
with: with:
go-version: 1.20.x go-version: 1.15.x
- name: Login to Docker Hub - name: Login to Docker Hub
uses: docker/login-action@465a07811f14bebb1938fbed4728c6a1ff8901fc #v2 uses: docker/login-action@v1
with: with:
username: ${{ secrets.DOCKERHUB_USERNAME }} username: ${{ secrets.DOCKERHUB_USERNAME }}
password: ${{ secrets.DOCKERHUB_TOKEN }} password: ${{ secrets.DOCKERHUB_TOKEN }}
- name: Login to GHCR
uses: docker/login-action@465a07811f14bebb1938fbed4728c6a1ff8901fc #v2
with:
username: ${{ secrets.BOT_USERNAME }}
password: ${{ secrets.BOT_GHCR_PAT }}
registry: ghcr.io
- name: Build - name: Build
uses: goreleaser/goreleaser-action@7ec5c2b0c6cdda6e8bbb49444bc797dd33d74dd8 #v3 uses: goreleaser/goreleaser-action@v2
with: with:
version: v0.155.0 version: v0.155.0
args: --debug args: --debug
@ -91,43 +88,33 @@ jobs:
echo '{"experimental": "enabled"}' > ~/.docker/config.json echo '{"experimental": "enabled"}' > ~/.docker/config.json
- name: Create manifest for version - name: Create manifest for version
run: | run: |
export DH_TAG=$(git tag --points-at HEAD | sed 's/^v*//') export DH_TAG=$(echo $TAG | sed 's/^v*//')
docker manifest create \ docker manifest create \
containrrr/watchtower:$DH_TAG \ containrrr/watchtower:$DH_TAG \
containrrr/watchtower:amd64-$DH_TAG \ containrrr/watchtower:amd64-$DH_TAG \
containrrr/watchtower:i386-$DH_TAG \ containrrr/watchtower:i386-$DH_TAG \
containrrr/watchtower:armhf-$DH_TAG \ containrrr/watchtower:armhf-$DH_TAG \
containrrr/watchtower:arm64v8-$DH_TAG containrrr/watchtower:arm64v8-$DH_TAG
docker manifest create \
ghcr.io/containrrr/watchtower:$DH_TAG \
ghcr.io/containrrr/watchtower:amd64-$DH_TAG \
ghcr.io/containrrr/watchtower:i386-$DH_TAG \
ghcr.io/containrrr/watchtower:armhf-$DH_TAG \
ghcr.io/containrrr/watchtower:arm64v8-$DH_TAG
- name: Annotate manifest for version - name: Annotate manifest for version
run: | run: |
for REPO in '' ghcr.io/ ; do
docker manifest annotate \ docker manifest annotate \
${REPO}containrrr/watchtower:$(echo $TAG | sed 's/^v*//') \ containrrr/watchtower:$(echo $TAG | sed 's/^v*//') \
${REPO}containrrr/watchtower:i386-$(echo $TAG | sed 's/^v*//') \ containrrr/watchtower:i386-$(echo $TAG | sed 's/^v*//') \
--os linux \ --os linux \
--arch 386 --arch 386
docker manifest annotate \ docker manifest annotate \
${REPO}containrrr/watchtower:$(echo $TAG | sed 's/^v*//') \ containrrr/watchtower:$(echo $TAG | sed 's/^v*//') \
${REPO}containrrr/watchtower:armhf-$(echo $TAG | sed 's/^v*//') \ containrrr/watchtower:armhf-$(echo $TAG | sed 's/^v*//') \
--os linux \ --os linux \
--arch arm --arch arm
docker manifest annotate \ docker manifest annotate \
${REPO}containrrr/watchtower:$(echo $TAG | sed 's/^v*//') \ containrrr/watchtower:$(echo $TAG | sed 's/^v*//') \
${REPO}containrrr/watchtower:arm64v8-$(echo $TAG | sed 's/^v*//') \ containrrr/watchtower:arm64v8-$(echo $TAG | sed 's/^v*//') \
--os linux \ --os linux \
--arch arm64 \ --arch arm64 \
--variant v8 --variant v8
done
- name: Create manifest for latest - name: Create manifest for latest
run: | run: |
docker manifest create \ docker manifest create \
@ -136,36 +123,26 @@ jobs:
containrrr/watchtower:i386-latest \ containrrr/watchtower:i386-latest \
containrrr/watchtower:armhf-latest \ containrrr/watchtower:armhf-latest \
containrrr/watchtower:arm64v8-latest containrrr/watchtower:arm64v8-latest
docker manifest create \
ghcr.io/containrrr/watchtower:latest \
ghcr.io/containrrr/watchtower:amd64-latest \
ghcr.io/containrrr/watchtower:i386-latest \
ghcr.io/containrrr/watchtower:armhf-latest \
ghcr.io/containrrr/watchtower:arm64v8-latest
- name: Annotate manifest for latest - name: Annotate manifest for latest
run: | run: |
for REPO in '' ghcr.io/ ; do
docker manifest annotate \ docker manifest annotate \
${REPO}containrrr/watchtower:latest \ containrrr/watchtower:latest \
${REPO}containrrr/watchtower:i386-latest \ containrrr/watchtower:i386-latest \
--os linux \ --os linux \
--arch 386 --arch 386
docker manifest annotate \ docker manifest annotate \
${REPO}containrrr/watchtower:latest \ containrrr/watchtower:latest \
${REPO}containrrr/watchtower:armhf-latest \ containrrr/watchtower:armhf-latest \
--os linux \ --os linux \
--arch arm --arch arm
docker manifest annotate \ docker manifest annotate \
${REPO}containrrr/watchtower:latest \ containrrr/watchtower:latest \
${REPO}containrrr/watchtower:arm64v8-latest \ containrrr/watchtower:arm64v8-latest \
--os linux \ --os linux \
--arch arm64 \ --arch arm64 \
--variant v8 --variant v8
done
- name: Push manifests to Dockerhub - name: Push manifests to Dockerhub
env: env:
DOCKER_USER: ${{ secrets.DOCKERHUB_USERNAME }} DOCKER_USER: ${{ secrets.DOCKERHUB_USERNAME }}
@ -174,14 +151,29 @@ jobs:
docker login -u $DOCKER_USER -p $DOCKER_TOKEN && \ docker login -u $DOCKER_USER -p $DOCKER_TOKEN && \
docker manifest push containrrr/watchtower:$(echo $TAG | sed 's/^v*//') && \ docker manifest push containrrr/watchtower:$(echo $TAG | sed 's/^v*//') && \
docker manifest push containrrr/watchtower:latest docker manifest push containrrr/watchtower:latest
- name: Push manifests to GitHub Container Registry
env: publish-docs:
DOCKER_USER: ${{ secrets.BOT_USERNAME }} name: Publish Docs
DOCKER_TOKEN: ${{ secrets.BOT_GHCR_PAT }} needs: build
runs-on: ubuntu-latest
steps:
- name: Checkout
uses: actions/checkout@v2
with:
fetch-depth: 0
- name: Install mkdocs
run: | run: |
docker login -u $DOCKER_USER -p $DOCKER_TOKEN ghcr.io && \ pip install \
docker manifest push ghcr.io/containrrr/watchtower:$(echo $TAG | sed 's/^v*//') && \ mkdocs \
docker manifest push ghcr.io/containrrr/watchtower:latest mkdocs-material \
md-toc
- name: Generate docs
run: mkdocs build
- name: Publish docs
uses: peaceiris/actions-gh-pages@v3
with:
github_token: ${{ secrets.GITHUB_TOKEN }}
publish_dir: ./site
renew-docs: renew-docs:
name: Refresh pkg.go.dev name: Refresh pkg.go.dev
@ -189,7 +181,7 @@ jobs:
runs-on: ubuntu-latest runs-on: ubuntu-latest
steps: steps:
- name: Pull new module version - name: Pull new module version
uses: andrewslotin/go-proxy-pull-action@50fea06a976087614babb9508e5c528b464f4645 #master@2022-10-14 uses: andrewslotin/go-proxy-pull-action@master

5
.gitignore vendored
View file

@ -1,5 +1,4 @@
watchtower watchtower
watchtower.exe
vendor vendor
.glide .glide
dist dist
@ -7,7 +6,3 @@ dist
.DS_Store .DS_Store
/site /site
coverage.out coverage.out
*.coverprofile
docs/assets/wasm_exec.js
docs/assets/*.wasm

241
README.md
View file

@ -7,8 +7,9 @@
<br/><br/> <br/><br/>
[![Circle CI](https://circleci.com/gh/containrrr/watchtower.svg?style=shield)](https://circleci.com/gh/containrrr/watchtower) [![Circle CI](https://circleci.com/gh/containrrr/watchtower.svg?style=shield)](https://circleci.com/gh/containrrr/watchtower)
[![codecov](https://codecov.io/gh/containrrr/watchtower/branch/main/graph/badge.svg)](https://codecov.io/gh/containrrr/watchtower) [![codecov](https://codecov.io/gh/containrrr/watchtower/branch/master/graph/badge.svg?token=8pxWgB380Y)](https://codecov.io/gh/containrrr/watchtower)
[![GoDoc](https://godoc.org/github.com/containrrr/watchtower?status.svg)](https://godoc.org/github.com/containrrr/watchtower) [![GoDoc](https://godoc.org/github.com/containrrr/watchtower?status.svg)](https://godoc.org/github.com/containrrr/watchtower)
[![Microbadger](https://images.microbadger.com/badges/image/containrrr/watchtower.svg)](https://microbadger.com/images/containrrr/watchtower)
[![Go Report Card](https://goreportcard.com/badge/github.com/containrrr/watchtower)](https://goreportcard.com/report/github.com/containrrr/watchtower) [![Go Report Card](https://goreportcard.com/badge/github.com/containrrr/watchtower)](https://goreportcard.com/report/github.com/containrrr/watchtower)
[![latest version](https://img.shields.io/github/tag/containrrr/watchtower.svg)](https://github.com/containrrr/watchtower/releases) [![latest version](https://img.shields.io/github/tag/containrrr/watchtower.svg)](https://github.com/containrrr/watchtower/releases)
[![Apache-2.0 License](https://img.shields.io/github/license/containrrr/watchtower.svg)](https://www.apache.org/licenses/LICENSE-2.0) [![Apache-2.0 License](https://img.shields.io/github/license/containrrr/watchtower.svg)](https://www.apache.org/licenses/LICENSE-2.0)
@ -20,19 +21,15 @@
## Quick Start ## Quick Start
With watchtower you can update the running version of your containerized app simply by pushing a new image to the Docker Hub or your own image registry. With watchtower you can update the running version of your containerized app simply by pushing a new image to the Docker Hub or your own image registry. Watchtower will pull down your new image, gracefully shut down your existing container and restart it with the same options that were used when it was deployed initially. Run the watchtower container with the following command:
Watchtower will pull down your new image, gracefully shut down your existing container and restart it with the same options that were used when it was deployed initially. Run the watchtower container with the following command:
``` ```
$ docker run --detach \ $ docker run -d \
--name watchtower \ --name watchtower \
--volume /var/run/docker.sock:/var/run/docker.sock \ -v /var/run/docker.sock:/var/run/docker.sock \
containrrr/watchtower containrrr/watchtower
``` ```
Watchtower is intended to be used in homelabs, media centers, local dev environments, and similar. We do **not** recommend using Watchtower in a commercial or production environment. If that is you, you should be looking into using Kubernetes. If that feels like too big a step for you, please look into solutions like [MicroK8s](https://microk8s.io/) and [k3s](https://k3s.io/) that take away a lot of the toil of running a Kubernetes cluster.
## Documentation ## Documentation
The full documentation is available at https://containrrr.dev/watchtower. The full documentation is available at https://containrrr.dev/watchtower.
@ -44,130 +41,110 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
<!-- prettier-ignore-start --> <!-- prettier-ignore-start -->
<!-- markdownlint-disable --> <!-- markdownlint-disable -->
<table> <table>
<tbody> <tr>
<tr> <td align="center"><a href="http://codelica.com"><img src="https://avatars3.githubusercontent.com/u/386101?v=4?s=100" width="100px;" alt=""/><br /><sub><b>James</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=Codelica" title="Tests">⚠️</a> <a href="#ideas-Codelica" title="Ideas, Planning, & Feedback">🤔</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://piksel.se"><img src="https://avatars2.githubusercontent.com/u/807383?v=4?s=100" width="100px;" alt="nils måsén"/><br /><sub><b>nils måsén</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=piksel" title="Code">💻</a> <a href="https://github.com/containrrr/watchtower/commits?author=piksel" title="Documentation">📖</a> <a href="#maintenance-piksel" title="Maintenance">🚧</a> <a href="https://github.com/containrrr/watchtower/pulls?q=is%3Apr+reviewed-by%3Apiksel" title="Reviewed Pull Requests">👀</a></td> <td align="center"><a href="https://kopfkrieg.org"><img src="https://avatars2.githubusercontent.com/u/5047813?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Florian</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/pulls?q=is%3Apr+reviewed-by%3AKopfKrieg" title="Reviewed Pull Requests">👀</a> <a href="https://github.com/containrrr/watchtower/commits?author=KopfKrieg" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://simme.dev"><img src="https://avatars0.githubusercontent.com/u/1596025?v=4?s=100" width="100px;" alt="Simon Aronsson"/><br /><sub><b>Simon Aronsson</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=simskij" title="Code">💻</a> <a href="https://github.com/containrrr/watchtower/commits?author=simskij" title="Documentation">📖</a> <a href="#maintenance-simskij" title="Maintenance">🚧</a> <a href="https://github.com/containrrr/watchtower/pulls?q=is%3Apr+reviewed-by%3Asimskij" title="Reviewed Pull Requests">👀</a></td> <td align="center"><a href="https://github.com/bdehamer"><img src="https://avatars1.githubusercontent.com/u/398027?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Brian DeHamer</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=bdehamer" title="Code">💻</a> <a href="#maintenance-bdehamer" title="Maintenance">🚧</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://codelica.com"><img src="https://avatars3.githubusercontent.com/u/386101?v=4?s=100" width="100px;" alt="James"/><br /><sub><b>James</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=Codelica" title="Tests">⚠️</a> <a href="#ideas-Codelica" title="Ideas, Planning, & Feedback">🤔</a></td> <td align="center"><a href="https://github.com/rosscado"><img src="https://avatars1.githubusercontent.com/u/16578183?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Ross Cadogan</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=rosscado" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://kopfkrieg.org"><img src="https://avatars2.githubusercontent.com/u/5047813?v=4?s=100" width="100px;" alt="Florian"/><br /><sub><b>Florian</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/pulls?q=is%3Apr+reviewed-by%3AKopfKrieg" title="Reviewed Pull Requests">👀</a> <a href="https://github.com/containrrr/watchtower/commits?author=KopfKrieg" title="Documentation">📖</a></td> <td align="center"><a href="https://github.com/stffabi"><img src="https://avatars0.githubusercontent.com/u/9464631?v=4?s=100" width="100px;" alt=""/><br /><sub><b>stffabi</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=stffabi" title="Code">💻</a> <a href="#maintenance-stffabi" title="Maintenance">🚧</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/bdehamer"><img src="https://avatars1.githubusercontent.com/u/398027?v=4?s=100" width="100px;" alt="Brian DeHamer"/><br /><sub><b>Brian DeHamer</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=bdehamer" title="Code">💻</a> <a href="#maintenance-bdehamer" title="Maintenance">🚧</a></td> <td align="center"><a href="https://github.com/ATCUSA"><img src="https://avatars3.githubusercontent.com/u/3581228?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Austin</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=ATCUSA" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/rosscado"><img src="https://avatars1.githubusercontent.com/u/16578183?v=4?s=100" width="100px;" alt="Ross Cadogan"/><br /><sub><b>Ross Cadogan</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=rosscado" title="Code">💻</a></td> <td align="center"><a href="https://labs.ctl.io"><img src="https://avatars2.githubusercontent.com/u/6181487?v=4?s=100" width="100px;" alt=""/><br /><sub><b>David Gardner</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/pulls?q=is%3Apr+reviewed-by%3Adavidgardner11" title="Reviewed Pull Requests">👀</a> <a href="https://github.com/containrrr/watchtower/commits?author=davidgardner11" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/stffabi"><img src="https://avatars0.githubusercontent.com/u/9464631?v=4?s=100" width="100px;" alt="stffabi"/><br /><sub><b>stffabi</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=stffabi" title="Code">💻</a> <a href="#maintenance-stffabi" title="Maintenance">🚧</a></td> </tr>
</tr> <tr>
<tr> <td align="center"><a href="https://github.com/dolanor"><img src="https://avatars3.githubusercontent.com/u/928722?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Tanguy ⧓ Herrmann</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=dolanor" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/ATCUSA"><img src="https://avatars3.githubusercontent.com/u/3581228?v=4?s=100" width="100px;" alt="Austin"/><br /><sub><b>Austin</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=ATCUSA" title="Documentation">📖</a></td> <td align="center"><a href="https://github.com/rdamazio"><img src="https://avatars3.githubusercontent.com/u/997641?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Rodrigo Damazio Bovendorp</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=rdamazio" title="Code">💻</a> <a href="https://github.com/containrrr/watchtower/commits?author=rdamazio" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://labs.ctl.io"><img src="https://avatars2.githubusercontent.com/u/6181487?v=4?s=100" width="100px;" alt="David Gardner"/><br /><sub><b>David Gardner</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/pulls?q=is%3Apr+reviewed-by%3Adavidgardner11" title="Reviewed Pull Requests">👀</a> <a href="https://github.com/containrrr/watchtower/commits?author=davidgardner11" title="Documentation">📖</a></td> <td align="center"><a href="https://www.taisun.io/"><img src="https://avatars3.githubusercontent.com/u/1852688?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Ryan Kuba</b></sub></a><br /><a href="#infra-thelamer" title="Infrastructure (Hosting, Build-Tools, etc)">🚇</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/dolanor"><img src="https://avatars3.githubusercontent.com/u/928722?v=4?s=100" width="100px;" alt="Tanguy ⧓ Herrmann"/><br /><sub><b>Tanguy ⧓ Herrmann</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=dolanor" title="Code">💻</a></td> <td align="center"><a href="https://github.com/cnrmck"><img src="https://avatars2.githubusercontent.com/u/22061955?v=4?s=100" width="100px;" alt=""/><br /><sub><b>cnrmck</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=cnrmck" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/rdamazio"><img src="https://avatars3.githubusercontent.com/u/997641?v=4?s=100" width="100px;" alt="Rodrigo Damazio Bovendorp"/><br /><sub><b>Rodrigo Damazio Bovendorp</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=rdamazio" title="Code">💻</a> <a href="https://github.com/containrrr/watchtower/commits?author=rdamazio" title="Documentation">📖</a></td> <td align="center"><a href="http://harrywalter.co.uk"><img src="https://avatars3.githubusercontent.com/u/338588?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Harry Walter</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=haswalt" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://www.taisun.io/"><img src="https://avatars3.githubusercontent.com/u/1852688?v=4?s=100" width="100px;" alt="Ryan Kuba"/><br /><sub><b>Ryan Kuba</b></sub></a><br /><a href="#infra-thelamer" title="Infrastructure (Hosting, Build-Tools, etc)">🚇</a></td> <td align="center"><a href="http://projectsperanza.com"><img src="https://avatars3.githubusercontent.com/u/74515?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Robotex</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=Robotex" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/cnrmck"><img src="https://avatars2.githubusercontent.com/u/22061955?v=4?s=100" width="100px;" alt="cnrmck"/><br /><sub><b>cnrmck</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=cnrmck" title="Documentation">📖</a></td> <td align="center"><a href="http://geraldpape.io"><img src="https://avatars0.githubusercontent.com/u/1494211?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Gerald Pape</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=ubergesundheit" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://harrywalter.co.uk"><img src="https://avatars3.githubusercontent.com/u/338588?v=4?s=100" width="100px;" alt="Harry Walter"/><br /><sub><b>Harry Walter</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=haswalt" title="Code">💻</a></td> </tr>
</tr> <tr>
<tr> <td align="center"><a href="https://github.com/fomk"><img src="https://avatars0.githubusercontent.com/u/17636183?v=4?s=100" width="100px;" alt=""/><br /><sub><b>fomk</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=fomk" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://projectsperanza.com"><img src="https://avatars3.githubusercontent.com/u/74515?v=4?s=100" width="100px;" alt="Robotex"/><br /><sub><b>Robotex</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=Robotex" title="Documentation">📖</a></td> <td align="center"><a href="https://github.com/svengo"><img src="https://avatars3.githubusercontent.com/u/2502366?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Sven Gottwald</b></sub></a><br /><a href="#infra-svengo" title="Infrastructure (Hosting, Build-Tools, etc)">🚇</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://geraldpape.io"><img src="https://avatars0.githubusercontent.com/u/1494211?v=4?s=100" width="100px;" alt="Gerald Pape"/><br /><sub><b>Gerald Pape</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=ubergesundheit" title="Documentation">📖</a></td> <td align="center"><a href="https://liberapay.com/techknowlogick/"><img src="https://avatars1.githubusercontent.com/u/164197?v=4?s=100" width="100px;" alt=""/><br /><sub><b>techknowlogick</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=techknowlogick" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/fomk"><img src="https://avatars0.githubusercontent.com/u/17636183?v=4?s=100" width="100px;" alt="fomk"/><br /><sub><b>fomk</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=fomk" title="Code">💻</a></td> <td align="center"><a href="http://log.c5t.org/about/"><img src="https://avatars1.githubusercontent.com/u/1449568?v=4?s=100" width="100px;" alt=""/><br /><sub><b>waja</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=waja" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/svengo"><img src="https://avatars3.githubusercontent.com/u/2502366?v=4?s=100" width="100px;" alt="Sven Gottwald"/><br /><sub><b>Sven Gottwald</b></sub></a><br /><a href="#infra-svengo" title="Infrastructure (Hosting, Build-Tools, etc)">🚇</a></td> <td align="center"><a href="http://scottalbertson.com"><img src="https://avatars2.githubusercontent.com/u/154463?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Scott Albertson</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=salbertson" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://liberapay.com/techknowlogick/"><img src="https://avatars1.githubusercontent.com/u/164197?v=4?s=100" width="100px;" alt="techknowlogick"/><br /><sub><b>techknowlogick</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=techknowlogick" title="Code">💻</a></td> <td align="center"><a href="https://github.com/huddlesj"><img src="https://avatars1.githubusercontent.com/u/11966535?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Jason Huddleston</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=huddlesj" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://log.c5t.org/about/"><img src="https://avatars1.githubusercontent.com/u/1449568?v=4?s=100" width="100px;" alt="waja"/><br /><sub><b>waja</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=waja" title="Documentation">📖</a></td> <td align="center"><a href="https://npstr.space/"><img src="https://avatars3.githubusercontent.com/u/6048348?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Napster</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=napstr" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://scottalbertson.com"><img src="https://avatars2.githubusercontent.com/u/154463?v=4?s=100" width="100px;" alt="Scott Albertson"/><br /><sub><b>Scott Albertson</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=salbertson" title="Documentation">📖</a></td> </tr>
</tr> <tr>
<tr> <td align="center"><a href="https://github.com/darknode"><img src="https://avatars1.githubusercontent.com/u/809429?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Maxim</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=darknode" title="Code">💻</a> <a href="https://github.com/containrrr/watchtower/commits?author=darknode" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/huddlesj"><img src="https://avatars1.githubusercontent.com/u/11966535?v=4?s=100" width="100px;" alt="Jason Huddleston"/><br /><sub><b>Jason Huddleston</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=huddlesj" title="Documentation">📖</a></td> <td align="center"><a href="https://schmitt.cat"><img src="https://avatars0.githubusercontent.com/u/17984549?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Max Schmitt</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=mxschmitt" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://npstr.space/"><img src="https://avatars3.githubusercontent.com/u/6048348?v=4?s=100" width="100px;" alt="Napster"/><br /><sub><b>Napster</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=napstr" title="Code">💻</a></td> <td align="center"><a href="https://github.com/cron410"><img src="https://avatars1.githubusercontent.com/u/3082899?v=4?s=100" width="100px;" alt=""/><br /><sub><b>cron410</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=cron410" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/darknode"><img src="https://avatars1.githubusercontent.com/u/809429?v=4?s=100" width="100px;" alt="Maxim"/><br /><sub><b>Maxim</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=darknode" title="Code">💻</a> <a href="https://github.com/containrrr/watchtower/commits?author=darknode" title="Documentation">📖</a></td> <td align="center"><a href="https://github.com/Cardoso222"><img src="https://avatars3.githubusercontent.com/u/7026517?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Paulo Henrique</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=Cardoso222" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://schmitt.cat"><img src="https://avatars0.githubusercontent.com/u/17984549?v=4?s=100" width="100px;" alt="Max Schmitt"/><br /><sub><b>Max Schmitt</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=mxschmitt" title="Documentation">📖</a></td> <td align="center"><a href="https://coded.io"><img src="https://avatars0.githubusercontent.com/u/107097?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Kaleb Elwert</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=belak" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/cron410"><img src="https://avatars1.githubusercontent.com/u/3082899?v=4?s=100" width="100px;" alt="cron410"/><br /><sub><b>cron410</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=cron410" title="Documentation">📖</a></td> <td align="center"><a href="https://github.com/wmbutler"><img src="https://avatars1.githubusercontent.com/u/1254810?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Bill Butler</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=wmbutler" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Cardoso222"><img src="https://avatars3.githubusercontent.com/u/7026517?v=4?s=100" width="100px;" alt="Paulo Henrique"/><br /><sub><b>Paulo Henrique</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=Cardoso222" title="Documentation">📖</a></td> <td align="center"><a href="https://www.mariotacke.io"><img src="https://avatars2.githubusercontent.com/u/4942019?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Mario Tacke</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=mariotacke" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://coded.io"><img src="https://avatars0.githubusercontent.com/u/107097?v=4?s=100" width="100px;" alt="Kaleb Elwert"/><br /><sub><b>Kaleb Elwert</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=belak" title="Documentation">📖</a></td> </tr>
</tr> <tr>
<tr> <td align="center"><a href="https://markwoodbridge.com"><img src="https://avatars2.githubusercontent.com/u/1101318?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Mark Woodbridge</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=mrw34" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/wmbutler"><img src="https://avatars1.githubusercontent.com/u/1254810?v=4?s=100" width="100px;" alt="Bill Butler"/><br /><sub><b>Bill Butler</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=wmbutler" title="Documentation">📖</a></td> <td align="center"><a href="http://simme.dev"><img src="https://avatars0.githubusercontent.com/u/1596025?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Simon Aronsson</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=simskij" title="Code">💻</a> <a href="#maintenance-simskij" title="Maintenance">🚧</a> <a href="https://github.com/containrrr/watchtower/pulls?q=is%3Apr+reviewed-by%3Asimskij" title="Reviewed Pull Requests">👀</a> <a href="https://github.com/containrrr/watchtower/commits?author=simskij" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://www.mariotacke.io"><img src="https://avatars2.githubusercontent.com/u/4942019?v=4?s=100" width="100px;" alt="Mario Tacke"/><br /><sub><b>Mario Tacke</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=mariotacke" title="Code">💻</a></td> <td align="center"><a href="https://github.com/Ansem93"><img src="https://avatars3.githubusercontent.com/u/6626218?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Ansem93</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=Ansem93" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://markwoodbridge.com"><img src="https://avatars2.githubusercontent.com/u/1101318?v=4?s=100" width="100px;" alt="Mark Woodbridge"/><br /><sub><b>Mark Woodbridge</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=mrw34" title="Code">💻</a></td> <td align="center"><a href="https://github.com/lukapeschke"><img src="https://avatars1.githubusercontent.com/u/17085536?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Luka Peschke</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=lukapeschke" title="Code">💻</a> <a href="https://github.com/containrrr/watchtower/commits?author=lukapeschke" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Ansem93"><img src="https://avatars3.githubusercontent.com/u/6626218?v=4?s=100" width="100px;" alt="Ansem93"/><br /><sub><b>Ansem93</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=Ansem93" title="Documentation">📖</a></td> <td align="center"><a href="https://github.com/zoispag"><img src="https://avatars0.githubusercontent.com/u/21138205?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Zois Pagoulatos</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=zoispag" title="Code">💻</a> <a href="https://github.com/containrrr/watchtower/pulls?q=is%3Apr+reviewed-by%3Azoispag" title="Reviewed Pull Requests">👀</a> <a href="#maintenance-zoispag" title="Maintenance">🚧</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/lukapeschke"><img src="https://avatars1.githubusercontent.com/u/17085536?v=4?s=100" width="100px;" alt="Luka Peschke"/><br /><sub><b>Luka Peschke</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=lukapeschke" title="Code">💻</a> <a href="https://github.com/containrrr/watchtower/commits?author=lukapeschke" title="Documentation">📖</a></td> <td align="center"><a href="https://alexandre.menif.name"><img src="https://avatars0.githubusercontent.com/u/16152103?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Alexandre Menif</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=alexandremenif" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/zoispag"><img src="https://avatars0.githubusercontent.com/u/21138205?v=4?s=100" width="100px;" alt="Zois Pagoulatos"/><br /><sub><b>Zois Pagoulatos</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=zoispag" title="Code">💻</a> <a href="https://github.com/containrrr/watchtower/pulls?q=is%3Apr+reviewed-by%3Azoispag" title="Reviewed Pull Requests">👀</a> <a href="#maintenance-zoispag" title="Maintenance">🚧</a></td> <td align="center"><a href="https://github.com/chugunov"><img src="https://avatars1.githubusercontent.com/u/4140479?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Andrey</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=chugunov" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://alexandre.menif.name"><img src="https://avatars0.githubusercontent.com/u/16152103?v=4?s=100" width="100px;" alt="Alexandre Menif"/><br /><sub><b>Alexandre Menif</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=alexandremenif" title="Code">💻</a></td> </tr>
</tr> <tr>
<tr> <td align="center"><a href="https://noplanman.ch"><img src="https://avatars3.githubusercontent.com/u/9423417?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Armando Lüscher</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=noplanman" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/chugunov"><img src="https://avatars1.githubusercontent.com/u/4140479?v=4?s=100" width="100px;" alt="Andrey"/><br /><sub><b>Andrey</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=chugunov" title="Documentation">📖</a></td> <td align="center"><a href="https://github.com/rjbudke"><img src="https://avatars2.githubusercontent.com/u/273485?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Ryan Budke</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=rjbudke" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://noplanman.ch"><img src="https://avatars3.githubusercontent.com/u/9423417?v=4?s=100" width="100px;" alt="Armando Lüscher"/><br /><sub><b>Armando Lüscher</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=noplanman" title="Documentation">📖</a></td> <td align="center"><a href="http://kaloyan.raev.name"><img src="https://avatars2.githubusercontent.com/u/468091?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Kaloyan Raev</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=kaloyan-raev" title="Code">💻</a> <a href="https://github.com/containrrr/watchtower/commits?author=kaloyan-raev" title="Tests">⚠️</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/rjbudke"><img src="https://avatars2.githubusercontent.com/u/273485?v=4?s=100" width="100px;" alt="Ryan Budke"/><br /><sub><b>Ryan Budke</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=rjbudke" title="Documentation">📖</a></td> <td align="center"><a href="https://github.com/sixth"><img src="https://avatars3.githubusercontent.com/u/11591445?v=4?s=100" width="100px;" alt=""/><br /><sub><b>sixth</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=sixth" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://kaloyan.raev.name"><img src="https://avatars2.githubusercontent.com/u/468091?v=4?s=100" width="100px;" alt="Kaloyan Raev"/><br /><sub><b>Kaloyan Raev</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=kaloyan-raev" title="Code">💻</a> <a href="https://github.com/containrrr/watchtower/commits?author=kaloyan-raev" title="Tests">⚠️</a></td> <td align="center"><a href="https://foosel.net"><img src="https://avatars0.githubusercontent.com/u/83657?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Gina Häußge</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=foosel" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/sixth"><img src="https://avatars3.githubusercontent.com/u/11591445?v=4?s=100" width="100px;" alt="sixth"/><br /><sub><b>sixth</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=sixth" title="Documentation">📖</a></td> <td align="center"><a href="https://github.com/8ear"><img src="https://avatars0.githubusercontent.com/u/10329648?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Max H.</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=8ear" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://foosel.net"><img src="https://avatars0.githubusercontent.com/u/83657?v=4?s=100" width="100px;" alt="Gina Häußge"/><br /><sub><b>Gina Häußge</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=foosel" title="Code">💻</a></td> <td align="center"><a href="https://pjknkda.github.io"><img src="https://avatars0.githubusercontent.com/u/4986524?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Jungkook Park</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=pjknkda" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/8ear"><img src="https://avatars0.githubusercontent.com/u/10329648?v=4?s=100" width="100px;" alt="Max H."/><br /><sub><b>Max H.</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=8ear" title="Code">💻</a></td> </tr>
</tr> <tr>
<tr> <td align="center"><a href="https://achfrag.net"><img src="https://avatars1.githubusercontent.com/u/5753622?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Jan Kristof Nidzwetzki</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=jnidzwetzki" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://pjknkda.github.io"><img src="https://avatars0.githubusercontent.com/u/4986524?v=4?s=100" width="100px;" alt="Jungkook Park"/><br /><sub><b>Jungkook Park</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=pjknkda" title="Documentation">📖</a></td> <td align="center"><a href="https://www.lukaselsner.de"><img src="https://avatars0.githubusercontent.com/u/1413542?v=4?s=100" width="100px;" alt=""/><br /><sub><b>lukas</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=mindrunner" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://achfrag.net"><img src="https://avatars1.githubusercontent.com/u/5753622?v=4?s=100" width="100px;" alt="Jan Kristof Nidzwetzki"/><br /><sub><b>Jan Kristof Nidzwetzki</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=jnidzwetzki" title="Documentation">📖</a></td> <td align="center"><a href="https://codingcoffee.dev"><img src="https://avatars3.githubusercontent.com/u/13611153?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Ameya Shenoy</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=codingCoffee" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://www.lukaselsner.de"><img src="https://avatars0.githubusercontent.com/u/1413542?v=4?s=100" width="100px;" alt="lukas"/><br /><sub><b>lukas</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=mindrunner" title="Code">💻</a></td> <td align="center"><a href="https://github.com/raymondelooff"><img src="https://avatars0.githubusercontent.com/u/9716806?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Raymon de Looff</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=raymondelooff" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://codingcoffee.dev"><img src="https://avatars3.githubusercontent.com/u/13611153?v=4?s=100" width="100px;" alt="Ameya Shenoy"/><br /><sub><b>Ameya Shenoy</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=codingCoffee" title="Code">💻</a></td> <td align="center"><a href="http://codemonkeylabs.com"><img src="https://avatars2.githubusercontent.com/u/704034?v=4?s=100" width="100px;" alt=""/><br /><sub><b>John Clayton</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=jsclayton" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/raymondelooff"><img src="https://avatars0.githubusercontent.com/u/9716806?v=4?s=100" width="100px;" alt="Raymon de Looff"/><br /><sub><b>Raymon de Looff</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=raymondelooff" title="Code">💻</a></td> <td align="center"><a href="https://github.com/Germs2004"><img src="https://avatars2.githubusercontent.com/u/5519340?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Germs2004</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=Germs2004" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://codemonkeylabs.com"><img src="https://avatars2.githubusercontent.com/u/704034?v=4?s=100" width="100px;" alt="John Clayton"/><br /><sub><b>John Clayton</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=jsclayton" title="Code">💻</a></td> <td align="center"><a href="https://github.com/lukwil"><img src="https://avatars1.githubusercontent.com/u/30203234?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Lukas Willburger</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=lukwil" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Germs2004"><img src="https://avatars2.githubusercontent.com/u/5519340?v=4?s=100" width="100px;" alt="Germs2004"/><br /><sub><b>Germs2004</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=Germs2004" title="Documentation">📖</a></td> </tr>
</tr> <tr>
<tr> <td align="center"><a href="https://github.com/auanasgheps"><img src="https://avatars2.githubusercontent.com/u/20586878?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Oliver Cervera</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=auanasgheps" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/lukwil"><img src="https://avatars1.githubusercontent.com/u/30203234?v=4?s=100" width="100px;" alt="Lukas Willburger"/><br /><sub><b>Lukas Willburger</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=lukwil" title="Code">💻</a></td> <td align="center"><a href="https://github.com/victorcmoura"><img src="https://avatars1.githubusercontent.com/u/26290053?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Victor Moura</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=victorcmoura" title="Tests">⚠️</a> <a href="https://github.com/containrrr/watchtower/commits?author=victorcmoura" title="Code">💻</a> <a href="https://github.com/containrrr/watchtower/commits?author=victorcmoura" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/auanasgheps"><img src="https://avatars2.githubusercontent.com/u/20586878?v=4?s=100" width="100px;" alt="Oliver Cervera"/><br /><sub><b>Oliver Cervera</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=auanasgheps" title="Documentation">📖</a></td> <td align="center"><a href="https://github.com/mbrandau"><img src="https://avatars3.githubusercontent.com/u/12972798?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Maximilian Brandau</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=mbrandau" title="Code">💻</a> <a href="https://github.com/containrrr/watchtower/commits?author=mbrandau" title="Tests">⚠️</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/victorcmoura"><img src="https://avatars1.githubusercontent.com/u/26290053?v=4?s=100" width="100px;" alt="Victor Moura"/><br /><sub><b>Victor Moura</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=victorcmoura" title="Tests">⚠️</a> <a href="https://github.com/containrrr/watchtower/commits?author=victorcmoura" title="Code">💻</a> <a href="https://github.com/containrrr/watchtower/commits?author=victorcmoura" title="Documentation">📖</a></td> <td align="center"><a href="https://github.com/aneisch"><img src="https://avatars1.githubusercontent.com/u/6991461?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Andrew</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=aneisch" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/mbrandau"><img src="https://avatars3.githubusercontent.com/u/12972798?v=4?s=100" width="100px;" alt="Maximilian Brandau"/><br /><sub><b>Maximilian Brandau</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=mbrandau" title="Code">💻</a> <a href="https://github.com/containrrr/watchtower/commits?author=mbrandau" title="Tests">⚠️</a></td> <td align="center"><a href="https://github.com/sixcorners"><img src="https://avatars0.githubusercontent.com/u/585501?v=4?s=100" width="100px;" alt=""/><br /><sub><b>sixcorners</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=sixcorners" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/aneisch"><img src="https://avatars1.githubusercontent.com/u/6991461?v=4?s=100" width="100px;" alt="Andrew"/><br /><sub><b>Andrew</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=aneisch" title="Documentation">📖</a></td> <td align="center"><a href="https://piksel.se"><img src="https://avatars2.githubusercontent.com/u/807383?v=4?s=100" width="100px;" alt=""/><br /><sub><b>nils måsén</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=piksel" title="Documentation">📖</a> <a href="https://github.com/containrrr/watchtower/commits?author=piksel" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/sixcorners"><img src="https://avatars0.githubusercontent.com/u/585501?v=4?s=100" width="100px;" alt="sixcorners"/><br /><sub><b>sixcorners</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=sixcorners" title="Documentation">📖</a></td> <td align="center"><a href="https://arnested.dk"><img src="https://avatars2.githubusercontent.com/u/190005?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Arne Jørgensen</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=arnested" title="Tests">⚠️</a> <a href="https://github.com/containrrr/watchtower/pulls?q=is%3Apr+reviewed-by%3Aarnested" title="Reviewed Pull Requests">👀</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://arnested.dk"><img src="https://avatars2.githubusercontent.com/u/190005?v=4?s=100" width="100px;" alt="Arne Jørgensen"/><br /><sub><b>Arne Jørgensen</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=arnested" title="Tests">⚠️</a> <a href="https://github.com/containrrr/watchtower/pulls?q=is%3Apr+reviewed-by%3Aarnested" title="Reviewed Pull Requests">👀</a></td> </tr>
</tr> <tr>
<tr> <td align="center"><a href="https://github.com/patski123"><img src="https://avatars1.githubusercontent.com/u/19295295?v=4?s=100" width="100px;" alt=""/><br /><sub><b>PatSki123</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=patski123" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/patski123"><img src="https://avatars1.githubusercontent.com/u/19295295?v=4?s=100" width="100px;" alt="PatSki123"/><br /><sub><b>PatSki123</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=patski123" title="Documentation">📖</a></td> <td align="center"><a href="https://rubyroidlabs.com/"><img src="https://avatars2.githubusercontent.com/u/624999?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Valentine Zavadsky</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=Saicheg" title="Code">💻</a> <a href="https://github.com/containrrr/watchtower/commits?author=Saicheg" title="Documentation">📖</a> <a href="https://github.com/containrrr/watchtower/commits?author=Saicheg" title="Tests">⚠️</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://rubyroidlabs.com/"><img src="https://avatars2.githubusercontent.com/u/624999?v=4?s=100" width="100px;" alt="Valentine Zavadsky"/><br /><sub><b>Valentine Zavadsky</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=Saicheg" title="Code">💻</a> <a href="https://github.com/containrrr/watchtower/commits?author=Saicheg" title="Documentation">📖</a> <a href="https://github.com/containrrr/watchtower/commits?author=Saicheg" title="Tests">⚠️</a></td> <td align="center"><a href="https://github.com/bopoh24"><img src="https://avatars2.githubusercontent.com/u/4086631?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Alexander Voronin</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=bopoh24" title="Code">💻</a> <a href="https://github.com/containrrr/watchtower/issues?q=author%3Abopoh24" title="Bug reports">🐛</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/bopoh24"><img src="https://avatars2.githubusercontent.com/u/4086631?v=4?s=100" width="100px;" alt="Alexander Voronin"/><br /><sub><b>Alexander Voronin</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=bopoh24" title="Code">💻</a> <a href="https://github.com/containrrr/watchtower/issues?q=author%3Abopoh24" title="Bug reports">🐛</a></td> <td align="center"><a href="http://www.teqneers.de"><img src="https://avatars0.githubusercontent.com/u/788989?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Oliver Mueller</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=ogmueller" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://www.teqneers.de"><img src="https://avatars0.githubusercontent.com/u/788989?v=4?s=100" width="100px;" alt="Oliver Mueller"/><br /><sub><b>Oliver Mueller</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=ogmueller" title="Documentation">📖</a></td> <td align="center"><a href="https://github.com/tammert"><img src="https://avatars0.githubusercontent.com/u/8885250?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Sebastiaan Tammer</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=tammert" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/tammert"><img src="https://avatars0.githubusercontent.com/u/8885250?v=4?s=100" width="100px;" alt="Sebastiaan Tammer"/><br /><sub><b>Sebastiaan Tammer</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=tammert" title="Code">💻</a></td> <td align="center"><a href="https://github.com/Miosame"><img src="https://avatars1.githubusercontent.com/u/8201077?v=4?s=100" width="100px;" alt=""/><br /><sub><b>miosame</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=miosame" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Miosame"><img src="https://avatars1.githubusercontent.com/u/8201077?v=4?s=100" width="100px;" alt="miosame"/><br /><sub><b>miosame</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=miosame" title="Documentation">📖</a></td> <td align="center"><a href="https://mtz.gr"><img src="https://avatars3.githubusercontent.com/u/590246?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Andrew Metzger</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/issues?q=author%3Aandrewjmetzger" title="Bug reports">🐛</a> <a href="#example-andrewjmetzger" title="Examples">💡</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://mtz.gr"><img src="https://avatars3.githubusercontent.com/u/590246?v=4?s=100" width="100px;" alt="Andrew Metzger"/><br /><sub><b>Andrew Metzger</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/issues?q=author%3Aandrewjmetzger" title="Bug reports">🐛</a> <a href="#example-andrewjmetzger" title="Examples">💡</a></td> </tr>
</tr> <tr>
<tr> <td align="center"><a href="https://github.com/pgrimaud"><img src="https://avatars1.githubusercontent.com/u/1866496?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Pierre Grimaud</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=pgrimaud" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/pgrimaud"><img src="https://avatars1.githubusercontent.com/u/1866496?v=4?s=100" width="100px;" alt="Pierre Grimaud"/><br /><sub><b>Pierre Grimaud</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=pgrimaud" title="Documentation">📖</a></td> <td align="center"><a href="https://github.com/mattdoran"><img src="https://avatars0.githubusercontent.com/u/577779?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Matt Doran</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=mattdoran" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/mattdoran"><img src="https://avatars0.githubusercontent.com/u/577779?v=4?s=100" width="100px;" alt="Matt Doran"/><br /><sub><b>Matt Doran</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=mattdoran" title="Documentation">📖</a></td> <td align="center"><a href="https://github.com/MihailITPlace"><img src="https://avatars2.githubusercontent.com/u/28401551?v=4?s=100" width="100px;" alt=""/><br /><sub><b>MihailITPlace</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=MihailITPlace" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/MihailITPlace"><img src="https://avatars2.githubusercontent.com/u/28401551?v=4?s=100" width="100px;" alt="MihailITPlace"/><br /><sub><b>MihailITPlace</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=MihailITPlace" title="Code">💻</a></td> <td align="center"><a href="https://github.com/bugficks"><img src="https://avatars1.githubusercontent.com/u/2992895?v=4?s=100" width="100px;" alt=""/><br /><sub><b>bugficks</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=bugficks" title="Code">💻</a> <a href="https://github.com/containrrr/watchtower/commits?author=bugficks" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/bugficks"><img src="https://avatars1.githubusercontent.com/u/2992895?v=4?s=100" width="100px;" alt="bugficks"/><br /><sub><b>bugficks</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=bugficks" title="Code">💻</a> <a href="https://github.com/containrrr/watchtower/commits?author=bugficks" title="Documentation">📖</a></td> <td align="center"><a href="https://github.com/MichaelSp"><img src="https://avatars0.githubusercontent.com/u/448282?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Michael</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=MichaelSp" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/MichaelSp"><img src="https://avatars0.githubusercontent.com/u/448282?v=4?s=100" width="100px;" alt="Michael"/><br /><sub><b>Michael</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=MichaelSp" title="Code">💻</a></td> <td align="center"><a href="https://github.com/jokay"><img src="https://avatars0.githubusercontent.com/u/18613935?v=4?s=100" width="100px;" alt=""/><br /><sub><b>D. Domig</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=jokay" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/jokay"><img src="https://avatars0.githubusercontent.com/u/18613935?v=4?s=100" width="100px;" alt="D. Domig"/><br /><sub><b>D. Domig</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=jokay" title="Documentation">📖</a></td> <td align="center"><a href="https://maxwells-daemon.io"><img src="https://avatars1.githubusercontent.com/u/260084?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Ben Osheroff</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=osheroff" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://maxwells-daemon.io"><img src="https://avatars1.githubusercontent.com/u/260084?v=4?s=100" width="100px;" alt="Ben Osheroff"/><br /><sub><b>Ben Osheroff</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=osheroff" title="Code">💻</a></td> </tr>
</tr> <tr>
<tr> <td align="center"><a href="https://github.com/dhet"><img src="https://avatars3.githubusercontent.com/u/2668621?v=4?s=100" width="100px;" alt=""/><br /><sub><b>David H.</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=dhet" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/dhet"><img src="https://avatars3.githubusercontent.com/u/2668621?v=4?s=100" width="100px;" alt="David H."/><br /><sub><b>David H.</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=dhet" title="Code">💻</a></td> <td align="center"><a href="http://www.gridgeo.com"><img src="https://avatars1.githubusercontent.com/u/671887?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Chander Ganesan</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=chander" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://www.gridgeo.com"><img src="https://avatars1.githubusercontent.com/u/671887?v=4?s=100" width="100px;" alt="Chander Ganesan"/><br /><sub><b>Chander Ganesan</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=chander" title="Documentation">📖</a></td> <td align="center"><a href="https://github.com/yrien30"><img src="https://avatars1.githubusercontent.com/u/26816162?v=4?s=100" width="100px;" alt=""/><br /><sub><b>yrien30</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=yrien30" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/yrien30"><img src="https://avatars1.githubusercontent.com/u/26816162?v=4?s=100" width="100px;" alt="yrien30"/><br /><sub><b>yrien30</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=yrien30" title="Code">💻</a></td> <td align="center"><a href="https://github.com/ksurl"><img src="https://avatars1.githubusercontent.com/u/1371562?v=4?s=100" width="100px;" alt=""/><br /><sub><b>ksurl</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=ksurl" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/ksurl"><img src="https://avatars1.githubusercontent.com/u/1371562?v=4?s=100" width="100px;" alt="ksurl"/><br /><sub><b>ksurl</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=ksurl" title="Documentation">📖</a> <a href="https://github.com/containrrr/watchtower/commits?author=ksurl" title="Code">💻</a> <a href="#infra-ksurl" title="Infrastructure (Hosting, Build-Tools, etc)">🚇</a></td> <td align="center"><a href="https://github.com/rg9400"><img src="https://avatars2.githubusercontent.com/u/39887349?v=4?s=100" width="100px;" alt=""/><br /><sub><b>rg9400</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=rg9400" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/rg9400"><img src="https://avatars2.githubusercontent.com/u/39887349?v=4?s=100" width="100px;" alt="rg9400"/><br /><sub><b>rg9400</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=rg9400" title="Code">💻</a></td> <td align="center"><a href="https://github.com/tkalus"><img src="https://avatars2.githubusercontent.com/u/287181?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Turtle Kalus</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=tkalus" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/tkalus"><img src="https://avatars2.githubusercontent.com/u/287181?v=4?s=100" width="100px;" alt="Turtle Kalus"/><br /><sub><b>Turtle Kalus</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=tkalus" title="Code">💻</a></td> <td align="center"><a href="https://github.com/SrihariThalla"><img src="https://avatars1.githubusercontent.com/u/7479937?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Srihari Thalla</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=SrihariThalla" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/SrihariThalla"><img src="https://avatars1.githubusercontent.com/u/7479937?v=4?s=100" width="100px;" alt="Srihari Thalla"/><br /><sub><b>Srihari Thalla</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=SrihariThalla" title="Documentation">📖</a></td> </tr>
</tr> <tr>
<tr> <td align="center"><a href="https://nymous.io"><img src="https://avatars1.githubusercontent.com/u/4216559?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Thomas Gaudin</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=nymous" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://nymous.io"><img src="https://avatars1.githubusercontent.com/u/4216559?v=4?s=100" width="100px;" alt="Thomas Gaudin"/><br /><sub><b>Thomas Gaudin</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=nymous" title="Documentation">📖</a></td> <td align="center"><a href="https://indigo.re/"><img src="https://avatars.githubusercontent.com/u/2804645?v=4?s=100" width="100px;" alt=""/><br /><sub><b>hydrargyrum</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=hydrargyrum" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://indigo.re/"><img src="https://avatars.githubusercontent.com/u/2804645?v=4?s=100" width="100px;" alt="hydrargyrum"/><br /><sub><b>hydrargyrum</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=hydrargyrum" title="Documentation">📖</a></td> <td align="center"><a href="https://reinout.vanrees.org"><img src="https://avatars.githubusercontent.com/u/121433?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Reinout van Rees</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=reinout" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://reinout.vanrees.org"><img src="https://avatars.githubusercontent.com/u/121433?v=4?s=100" width="100px;" alt="Reinout van Rees"/><br /><sub><b>Reinout van Rees</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=reinout" title="Documentation">📖</a></td> </tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/DasSkelett"><img src="https://avatars.githubusercontent.com/u/28812678?v=4?s=100" width="100px;" alt="DasSkelett"/><br /><sub><b>DasSkelett</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=DasSkelett" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/zenjabba"><img src="https://avatars.githubusercontent.com/u/679864?v=4?s=100" width="100px;" alt="zenjabba"/><br /><sub><b>zenjabba</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=zenjabba" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://quan.io"><img src="https://avatars.githubusercontent.com/u/3526705?v=4?s=100" width="100px;" alt="Dan Quan"/><br /><sub><b>Dan Quan</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=djquan" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/modem7"><img src="https://avatars.githubusercontent.com/u/4349962?v=4?s=100" width="100px;" alt="modem7"/><br /><sub><b>modem7</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=modem7" title="Documentation">📖</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/hypnoglow"><img src="https://avatars.githubusercontent.com/u/4853075?v=4?s=100" width="100px;" alt="Igor Zibarev"/><br /><sub><b>Igor Zibarev</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=hypnoglow" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/patricegautier"><img src="https://avatars.githubusercontent.com/u/38435239?v=4?s=100" width="100px;" alt="Patrice"/><br /><sub><b>Patrice</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=patricegautier" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://jamesw.link/me"><img src="https://avatars.githubusercontent.com/u/8067792?v=4?s=100" width="100px;" alt="James White"/><br /><sub><b>James White</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=jamesmacwhite" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://ko-fi.com/foxite"><img src="https://avatars.githubusercontent.com/u/20421657?v=4?s=100" width="100px;" alt="Dirk Kok"/><br /><sub><b>Dirk Kok</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=Foxite" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/EDIflyer"><img src="https://avatars.githubusercontent.com/u/13610277?v=4?s=100" width="100px;" alt="EDIflyer"/><br /><sub><b>EDIflyer</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=EDIflyer" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/jauderho"><img src="https://avatars.githubusercontent.com/u/13562?v=4?s=100" width="100px;" alt="Jauder Ho"/><br /><sub><b>Jauder Ho</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=jauderho" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://tamal.vercel.app/"><img src="https://avatars.githubusercontent.com/u/72851613?v=4?s=100" width="100px;" alt="Tamal Das "/><br /><sub><b>Tamal Das </b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=IAmTamal" title="Documentation">📖</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/testwill"><img src="https://avatars.githubusercontent.com/u/8717479?v=4?s=100" width="100px;" alt="guangwu"/><br /><sub><b>guangwu</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=testwill" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://hub.lol"><img src="https://avatars.githubusercontent.com/u/48992448?v=4?s=100" width="100px;" alt="Florian Hübner"/><br /><sub><b>Florian Hübner</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=nothub" title="Documentation">📖</a> <a href="https://github.com/containrrr/watchtower/commits?author=nothub" title="Code">💻</a></td>
<td align="center"><a href="https://github.com/andriibratanin"><img src="https://avatars.githubusercontent.com/u/20169213?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Andrii Bratanin</b></sub></a><br /><a href="https://github.com/containrrr/watchtower/commits?author=andriibratanin" title="Documentation">📖</a></td>
</tr>
</tbody>
</table> </table>
<!-- markdownlint-restore --> <!-- markdownlint-restore -->

View file

@ -1,13 +0,0 @@
# Security Policy
## Supported Versions
Security updates will always only be applied to the latest version of Watchtower.
As the software by default is set to auto-update if you use the `latest` tag, you will get these security updates automatically as soon as they are released.
## Reporting a Vulnerability
Critical vulnerabilities that might open up for external attacks are best reported directly either to simme@arcticbit.se or nils@piksel.se.
We'll always try to get back to you as swiftly as possible, but keep in mind that since this is a community project, we can't really leave any guarantees about the speed.
Non-critical vulnerabilities may be reported as regular GitHub issues.

8
build.sh Executable file → Normal file
View file

@ -1,9 +1,5 @@
#!/bin/bash #!/bin/bash
BINFILE=watchtower VERSION=$(git describe)
if [ -n "$MSYSTEM" ]; then
BINFILE=watchtower.exe
fi
VERSION=$(git describe --tags)
echo "Building $VERSION..." echo "Building $VERSION..."
go build -o $BINFILE -ldflags "-X github.com/containrrr/watchtower/internal/meta.Version=$VERSION" go build -o watchtower -ldflags "-X github.com/containrrr/watchtower/cmd.version=$VERSION"

View file

@ -1,111 +0,0 @@
// Package cmd contains the watchtower (sub-)commands
package cmd
import (
"fmt"
"os"
"os/signal"
"strings"
"syscall"
"time"
"github.com/containrrr/watchtower/internal/flags"
"github.com/containrrr/watchtower/pkg/container"
"github.com/containrrr/watchtower/pkg/notifications"
"github.com/spf13/cobra"
)
var notifyUpgradeCommand = NewNotifyUpgradeCommand()
// NewNotifyUpgradeCommand creates the notify upgrade command for watchtower
func NewNotifyUpgradeCommand() *cobra.Command {
return &cobra.Command{
Use: "notify-upgrade",
Short: "Upgrade legacy notification configuration to shoutrrr URLs",
Run: runNotifyUpgrade,
}
}
func runNotifyUpgrade(cmd *cobra.Command, args []string) {
if err := runNotifyUpgradeE(cmd, args); err != nil {
logf("Notification upgrade failed: %v", err)
}
}
func runNotifyUpgradeE(cmd *cobra.Command, _ []string) error {
f := cmd.Flags()
flags.ProcessFlagAliases(f)
notifier = notifications.NewNotifier(cmd)
urls := notifier.GetURLs()
logf("Found notification configurations for: %v", strings.Join(notifier.GetNames(), ", "))
outFile, err := os.CreateTemp("/", "watchtower-notif-urls-*")
if err != nil {
return fmt.Errorf("failed to create output file: %v", err)
}
logf("Writing notification URLs to %v", outFile.Name())
logf("")
sb := strings.Builder{}
sb.WriteString("WATCHTOWER_NOTIFICATION_URL=")
for i, u := range urls {
if i != 0 {
sb.WriteRune(' ')
}
sb.WriteString(u)
}
_, err = fmt.Fprint(outFile, sb.String())
tryOrLog(err, "Failed to write to output file")
tryOrLog(outFile.Sync(), "Failed to sync output file")
tryOrLog(outFile.Close(), "Failed to close output file")
containerID := "<CONTAINER>"
cid, err := container.GetRunningContainerID()
tryOrLog(err, "Failed to get running container ID")
if cid != "" {
containerID = cid.ShortID()
}
logf("To get the environment file, use:")
logf("cp %v:%v ./watchtower-notifications.env", containerID, outFile.Name())
logf("")
logf("Note: This file will be removed in 5 minutes or when this container is stopped!")
signalChannel := make(chan os.Signal, 1)
time.AfterFunc(5*time.Minute, func() {
signalChannel <- syscall.SIGALRM
})
signal.Notify(signalChannel, os.Interrupt)
signal.Notify(signalChannel, syscall.SIGTERM)
switch <-signalChannel {
case syscall.SIGALRM:
logf("Timed out!")
case os.Interrupt, syscall.SIGTERM:
logf("Stopping...")
default:
}
if err := os.Remove(outFile.Name()); err != nil {
logf("Failed to remove file, it may still be present in the container image! Error: %v", err)
} else {
logf("Environment file has been removed.")
}
return nil
}
func tryOrLog(err error, message string) {
if err != nil {
logf("%v: %v\n", message, err)
}
}
func logf(format string, v ...interface{}) {
fmt.Fprintln(os.Stderr, fmt.Sprintf(format, v...))
}

View file

@ -1,9 +1,7 @@
package cmd package cmd
import ( import (
"errors"
"math" "math"
"net/http"
"os" "os"
"os/signal" "os/signal"
"strconv" "strconv"
@ -11,12 +9,12 @@ import (
"syscall" "syscall"
"time" "time"
"github.com/containrrr/watchtower/internal/actions"
"github.com/containrrr/watchtower/internal/flags"
"github.com/containrrr/watchtower/internal/meta"
"github.com/containrrr/watchtower/pkg/api"
apiMetrics "github.com/containrrr/watchtower/pkg/api/metrics" apiMetrics "github.com/containrrr/watchtower/pkg/api/metrics"
"github.com/containrrr/watchtower/pkg/api/update" "github.com/containrrr/watchtower/pkg/api/update"
"github.com/containrrr/watchtower/internal/actions"
"github.com/containrrr/watchtower/internal/flags"
"github.com/containrrr/watchtower/pkg/api"
"github.com/containrrr/watchtower/pkg/container" "github.com/containrrr/watchtower/pkg/container"
"github.com/containrrr/watchtower/pkg/filters" "github.com/containrrr/watchtower/pkg/filters"
"github.com/containrrr/watchtower/pkg/metrics" "github.com/containrrr/watchtower/pkg/metrics"
@ -29,20 +27,19 @@ import (
) )
var ( var (
client container.Client client container.Client
scheduleSpec string scheduleSpec string
cleanup bool cleanup bool
noRestart bool noRestart bool
noPull bool monitorOnly bool
monitorOnly bool enableLabel bool
enableLabel bool notifier *notifications.Notifier
disableContainers []string timeout time.Duration
notifier t.Notifier lifecycleHooks bool
timeout time.Duration rollingRestart bool
lifecycleHooks bool scope string
rollingRestart bool // Set on build using ldflags
scope string version = "v0.0.0-unknown"
labelPrecedence bool
) )
var rootCmd = NewRootCommand() var rootCmd = NewRootCommand()
@ -58,7 +55,6 @@ func NewRootCommand() *cobra.Command {
`, `,
Run: Run, Run: Run,
PreRun: PreRun, PreRun: PreRun,
Args: cobra.ArbitraryArgs,
} }
} }
@ -71,7 +67,6 @@ func init() {
// Execute the root func and exit in case of errors // Execute the root func and exit in case of errors
func Execute() { func Execute() {
rootCmd.AddCommand(notifyUpgradeCommand)
if err := rootCmd.Execute(); err != nil { if err := rootCmd.Execute(); err != nil {
log.Fatal(err) log.Fatal(err)
} }
@ -80,12 +75,37 @@ func Execute() {
// PreRun is a lifecycle hook that runs before the command is executed. // PreRun is a lifecycle hook that runs before the command is executed.
func PreRun(cmd *cobra.Command, _ []string) { func PreRun(cmd *cobra.Command, _ []string) {
f := cmd.PersistentFlags() f := cmd.PersistentFlags()
flags.ProcessFlagAliases(f)
if err := flags.SetupLogging(f); err != nil { if enabled, _ := f.GetBool("no-color"); enabled {
log.Fatalf("Failed to initialize logging: %s", err.Error()) log.SetFormatter(&log.TextFormatter{
DisableColors: true,
})
} else {
// enable logrus built-in support for https://bixense.com/clicolors/
log.SetFormatter(&log.TextFormatter{
EnvironmentOverrideColors: true,
})
} }
scheduleSpec, _ = f.GetString("schedule") if enabled, _ := f.GetBool("debug"); enabled {
log.SetLevel(log.DebugLevel)
}
if enabled, _ := f.GetBool("trace"); enabled {
log.SetLevel(log.TraceLevel)
}
pollingSet := f.Changed("interval")
schedule, _ := f.GetString("schedule")
cronLen := len(schedule)
if pollingSet && cronLen > 0 {
log.Fatal("Only schedule or interval can be defined, not both.")
} else if cronLen > 0 {
scheduleSpec, _ = f.GetString("schedule")
} else {
interval, _ := f.GetInt("interval")
scheduleSpec = "@every " + strconv.Itoa(interval) + "s"
}
flags.GetSecretsFromFiles(cmd) flags.GetSecretsFromFiles(cmd)
cleanup, noRestart, monitorOnly, timeout = flags.ReadFlags(cmd) cleanup, noRestart, monitorOnly, timeout = flags.ReadFlags(cmd)
@ -95,15 +115,11 @@ func PreRun(cmd *cobra.Command, _ []string) {
} }
enableLabel, _ = f.GetBool("label-enable") enableLabel, _ = f.GetBool("label-enable")
disableContainers, _ = f.GetStringSlice("disable-containers")
lifecycleHooks, _ = f.GetBool("enable-lifecycle-hooks") lifecycleHooks, _ = f.GetBool("enable-lifecycle-hooks")
rollingRestart, _ = f.GetBool("rolling-restart") rollingRestart, _ = f.GetBool("rolling-restart")
scope, _ = f.GetString("scope") scope, _ = f.GetString("scope")
labelPrecedence, _ = f.GetBool("label-take-precedence")
if scope != "" { log.Debug(scope)
log.Debugf(`Using scope %q`, scope)
}
// configure environment vars for client // configure environment vars for client
err := flags.EnvConfig(cmd) err := flags.EnvConfig(cmd)
@ -111,57 +127,35 @@ func PreRun(cmd *cobra.Command, _ []string) {
log.Fatal(err) log.Fatal(err)
} }
noPull, _ = f.GetBool("no-pull") noPull, _ := f.GetBool("no-pull")
includeStopped, _ := f.GetBool("include-stopped") includeStopped, _ := f.GetBool("include-stopped")
includeRestarting, _ := f.GetBool("include-restarting") includeRestarting, _ := f.GetBool("include-restarting")
reviveStopped, _ := f.GetBool("revive-stopped") reviveStopped, _ := f.GetBool("revive-stopped")
removeVolumes, _ := f.GetBool("remove-volumes") removeVolumes, _ := f.GetBool("remove-volumes")
warnOnHeadPullFailed, _ := f.GetString("warn-on-head-failure")
if monitorOnly && noPull { if monitorOnly && noPull {
log.Warn("Using `WATCHTOWER_NO_PULL` and `WATCHTOWER_MONITOR_ONLY` simultaneously might lead to no action being taken at all. If this is intentional, you may safely ignore this message.") log.Warn("Using `WATCHTOWER_NO_PULL` and `WATCHTOWER_MONITOR_ONLY` simultaneously might lead to no action being taken at all. If this is intentional, you may safely ignore this message.")
} }
client = container.NewClient(container.ClientOptions{ client = container.NewClient(
IncludeStopped: includeStopped, !noPull,
ReviveStopped: reviveStopped, includeStopped,
RemoveVolumes: removeVolumes, reviveStopped,
IncludeRestarting: includeRestarting, removeVolumes,
WarnOnHeadFailed: container.WarningStrategy(warnOnHeadPullFailed), includeRestarting,
}) )
notifier = notifications.NewNotifier(cmd) notifier = notifications.NewNotifier(cmd)
notifier.AddLogHook()
} }
// Run is the main execution flow of the command // Run is the main execution flow of the command
func Run(c *cobra.Command, names []string) { func Run(c *cobra.Command, names []string) {
filter, filterDesc := filters.BuildFilter(names, disableContainers, enableLabel, scope) filter, filterDesc := filters.BuildFilter(names, enableLabel, scope)
runOnce, _ := c.PersistentFlags().GetBool("run-once") runOnce, _ := c.PersistentFlags().GetBool("run-once")
enableUpdateAPI, _ := c.PersistentFlags().GetBool("http-api-update") enableUpdateAPI, _ := c.PersistentFlags().GetBool("http-api-update")
enableMetricsAPI, _ := c.PersistentFlags().GetBool("http-api-metrics") enableMetricsAPI, _ := c.PersistentFlags().GetBool("http-api-metrics")
unblockHTTPAPI, _ := c.PersistentFlags().GetBool("http-api-periodic-polls")
apiToken, _ := c.PersistentFlags().GetString("http-api-token") apiToken, _ := c.PersistentFlags().GetString("http-api-token")
healthCheck, _ := c.PersistentFlags().GetBool("health-check")
if healthCheck {
// health check should not have pid 1
if os.Getpid() == 1 {
time.Sleep(1 * time.Second)
log.Fatal("The health check flag should never be passed to the main watchtower container process")
}
os.Exit(0)
}
if rollingRestart && monitorOnly {
log.Fatal("Rolling restarts is not compatible with the global monitor only flag")
}
awaitDockerClient()
if err := actions.CheckForSanity(client, filter, rollingRestart); err != nil {
logNotifyExit(err)
}
if runOnce { if runOnce {
writeStartupMessage(c, time.Time{}, filterDesc) writeStartupMessage(c, time.Time{}, filterDesc)
@ -172,26 +166,14 @@ func Run(c *cobra.Command, names []string) {
} }
if err := actions.CheckForMultipleWatchtowerInstances(client, cleanup, scope); err != nil { if err := actions.CheckForMultipleWatchtowerInstances(client, cleanup, scope); err != nil {
logNotifyExit(err) log.Fatal(err)
} }
// The lock is shared between the scheduler and the HTTP API. It only allows one update to run at a time.
updateLock := make(chan bool, 1)
updateLock <- true
httpAPI := api.New(apiToken) httpAPI := api.New(apiToken)
if enableUpdateAPI { if enableUpdateAPI {
updateHandler := update.New(func(images []string) { updateHandler := update.New(func() { runUpdatesWithNotifications(filter) })
metric := runUpdatesWithNotifications(filters.FilterByImage(images, filter))
metrics.RegisterScan(metric)
}, updateLock)
httpAPI.RegisterFunc(updateHandler.Path, updateHandler.Handle) httpAPI.RegisterFunc(updateHandler.Path, updateHandler.Handle)
// If polling isn't enabled the scheduler is never started, and
// we need to trigger the startup messages manually.
if !unblockHTTPAPI {
writeStartupMessage(c, time.Time{}, filterDesc)
}
} }
if enableMetricsAPI { if enableMetricsAPI {
@ -199,28 +181,17 @@ func Run(c *cobra.Command, names []string) {
httpAPI.RegisterHandler(metricsHandler.Path, metricsHandler.Handle) httpAPI.RegisterHandler(metricsHandler.Path, metricsHandler.Handle)
} }
if err := httpAPI.Start(enableUpdateAPI && !unblockHTTPAPI); err != nil && !errors.Is(err, http.ErrServerClosed) { if err := httpAPI.Start(enableUpdateAPI); err != nil {
log.Error("failed to start API", err) log.Error("failed to start API", err)
} }
if err := runUpgradesOnSchedule(c, filter, filterDesc, updateLock); err != nil { if err := runUpgradesOnSchedule(c, filter, filterDesc); err != nil {
log.Error(err) log.Error(err)
} }
os.Exit(1) os.Exit(1)
} }
func logNotifyExit(err error) {
log.Error(err)
notifier.Close()
os.Exit(1)
}
func awaitDockerClient() {
log.Debug("Sleeping for a second to ensure the docker api client has been properly initialized.")
time.Sleep(1 * time.Second)
}
func formatDuration(d time.Duration) string { func formatDuration(d time.Duration) string {
sb := strings.Builder{} sb := strings.Builder{}
@ -261,67 +232,35 @@ func formatDuration(d time.Duration) string {
} }
func writeStartupMessage(c *cobra.Command, sched time.Time, filtering string) { func writeStartupMessage(c *cobra.Command, sched time.Time, filtering string) {
noStartupMessage, _ := c.PersistentFlags().GetBool("no-startup-message") if noStartupMessage, _ := c.PersistentFlags().GetBool("no-startup-message"); !noStartupMessage {
enableUpdateAPI, _ := c.PersistentFlags().GetBool("http-api-update") schedMessage := "Running a one time update."
if !sched.IsZero() {
until := formatDuration(time.Until(sched))
schedMessage = "Scheduling first run: " + sched.Format("2006-01-02 15:04:05 -0700 MST") +
"\nNote that the first check will be performed in " + until
}
var startupLog *log.Entry notifs := "Using no notifications"
if noStartupMessage { notifList := notifier.String()
startupLog = notifications.LocalLog if len(notifList) > 0 {
} else { notifs = "Using notifications: " + notifList
startupLog = log.NewEntry(log.StandardLogger()) }
// Batch up startup messages to send them as a single notification
notifier.StartNotification()
}
startupLog.Info("Watchtower ", meta.Version) log.Info("Watchtower ", version, "\n", notifs, "\n", filtering, "\n", schedMessage)
notifierNames := notifier.GetNames()
if len(notifierNames) > 0 {
startupLog.Info("Using notifications: " + strings.Join(notifierNames, ", "))
} else {
startupLog.Info("Using no notifications")
}
startupLog.Info(filtering)
if !sched.IsZero() {
until := formatDuration(time.Until(sched))
startupLog.Info("Scheduling first run: " + sched.Format("2006-01-02 15:04:05 -0700 MST"))
startupLog.Info("Note that the first check will be performed in " + until)
} else if runOnce, _ := c.PersistentFlags().GetBool("run-once"); runOnce {
startupLog.Info("Running a one time update.")
} else {
startupLog.Info("Periodic runs are not enabled.")
}
if enableUpdateAPI {
// TODO: make listen port configurable
startupLog.Info("The HTTP API is enabled at :8080.")
}
if !noStartupMessage {
// Send the queued up startup messages, not including the trace warning below (to make sure it's noticed)
notifier.SendNotification(nil)
}
if log.IsLevelEnabled(log.TraceLevel) {
startupLog.Warn("Trace level enabled: log will include sensitive information as credentials and tokens")
} }
} }
func runUpgradesOnSchedule(c *cobra.Command, filter t.Filter, filtering string, lock chan bool) error { func runUpgradesOnSchedule(c *cobra.Command, filter t.Filter, filtering string) error {
if lock == nil { tryLockSem := make(chan bool, 1)
lock = make(chan bool, 1) tryLockSem <- true
lock <- true
}
scheduler := cron.New() scheduler := cron.New()
err := scheduler.AddFunc( err := scheduler.AddFunc(
scheduleSpec, scheduleSpec,
func() { func() {
select { select {
case v := <-lock: case v := <-tryLockSem:
defer func() { lock <- v }() defer func() { tryLockSem <- v }()
metric := runUpdatesWithNotifications(filter) metric := runUpdatesWithNotifications(filter)
metrics.RegisterScan(metric) metrics.RegisterScan(metric)
default: default:
@ -352,33 +291,25 @@ func runUpgradesOnSchedule(c *cobra.Command, filter t.Filter, filtering string,
<-interrupt <-interrupt
scheduler.Stop() scheduler.Stop()
log.Info("Waiting for running update to be finished...") log.Info("Waiting for running update to be finished...")
<-lock <-tryLockSem
return nil return nil
} }
func runUpdatesWithNotifications(filter t.Filter) *metrics.Metric { func runUpdatesWithNotifications(filter t.Filter) *metrics.Metric {
notifier.StartNotification() notifier.StartNotification()
updateParams := t.UpdateParams{ updateParams := t.UpdateParams{
Filter: filter, Filter: filter,
Cleanup: cleanup, Cleanup: cleanup,
NoRestart: noRestart, NoRestart: noRestart,
Timeout: timeout, Timeout: timeout,
MonitorOnly: monitorOnly, MonitorOnly: monitorOnly,
LifecycleHooks: lifecycleHooks, LifecycleHooks: lifecycleHooks,
RollingRestart: rollingRestart, RollingRestart: rollingRestart,
LabelPrecedence: labelPrecedence,
NoPull: noPull,
} }
result, err := actions.Update(client, updateParams) metricResults, err := actions.Update(client, updateParams)
if err != nil { if err != nil {
log.Error(err) log.Println(err)
} }
notifier.SendNotification(result) notifier.SendNotification()
metricResults := metrics.NewMetric(result)
notifications.LocalLog.WithFields(log.Fields{
"Scanned": metricResults.Scanned,
"Updated": metricResults.Updated,
"Failed": metricResults.Failed,
}).Info("Session done")
return metricResults return metricResults
} }

620
coverage.out Normal file
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@ -0,0 +1,620 @@
mode: set
github.com/containrrr/watchtower/internal/util/rand_name.go:8.24,10.19 2 0
github.com/containrrr/watchtower/internal/util/rand_name.go:14.2,14.18 1 0
github.com/containrrr/watchtower/internal/util/rand_name.go:10.19,12.3 1 0
github.com/containrrr/watchtower/internal/util/util.go:4.39,5.24 1 1
github.com/containrrr/watchtower/internal/util/util.go:9.2,9.20 1 1
github.com/containrrr/watchtower/internal/util/util.go:15.2,15.13 1 1
github.com/containrrr/watchtower/internal/util/util.go:5.24,7.3 1 1
github.com/containrrr/watchtower/internal/util/util.go:9.20,10.21 1 1
github.com/containrrr/watchtower/internal/util/util.go:10.21,12.4 1 1
github.com/containrrr/watchtower/internal/util/util.go:19.46,22.24 2 1
github.com/containrrr/watchtower/internal/util/util.go:37.2,37.10 1 1
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github.com/containrrr/watchtower/internal/util/util.go:32.3,32.13 1 1
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github.com/containrrr/watchtower/pkg/filters/filters.go:79.2,79.17 1 1
github.com/containrrr/watchtower/pkg/filters/filters.go:84.2,85.15 2 1
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github.com/containrrr/watchtower/pkg/filters/filters.go:79.17,83.3 1 0
github.com/containrrr/watchtower/internal/flags/flags.go:20.50,25.2 4 1
github.com/containrrr/watchtower/internal/flags/flags.go:28.50,154.2 22 0
github.com/containrrr/watchtower/internal/flags/flags.go:157.56,299.2 24 1
github.com/containrrr/watchtower/internal/flags/flags.go:302.20,313.2 10 1
github.com/containrrr/watchtower/internal/flags/flags.go:317.42,325.53 6 1
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github.com/containrrr/watchtower/internal/flags/flags.go:362.66,364.3 1 0
github.com/containrrr/watchtower/internal/flags/flags.go:365.66,367.3 1 0
github.com/containrrr/watchtower/internal/flags/flags.go:372.49,373.40 1 1
github.com/containrrr/watchtower/internal/flags/flags.go:376.2,377.16 2 1
github.com/containrrr/watchtower/internal/flags/flags.go:380.2,380.12 1 1
github.com/containrrr/watchtower/internal/flags/flags.go:373.40,375.3 1 0
github.com/containrrr/watchtower/internal/flags/flags.go:377.16,379.3 1 0
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github.com/containrrr/watchtower/internal/flags/flags.go:387.2,387.12 1 1
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github.com/containrrr/watchtower/internal/flags/flags.go:392.50,401.33 3 1
github.com/containrrr/watchtower/internal/flags/flags.go:401.33,403.3 1 1
github.com/containrrr/watchtower/internal/flags/flags.go:407.61,409.16 2 1
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github.com/containrrr/watchtower/internal/flags/flags.go:412.34,414.17 2 1
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github.com/containrrr/watchtower/internal/flags/flags.go:418.17,420.4 1 0
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github.com/containrrr/watchtower/pkg/registry/helpers/helpers.go:15.2,19.28 4 1
github.com/containrrr/watchtower/pkg/registry/helpers/helpers.go:12.16,14.3 1 0
github.com/containrrr/watchtower/pkg/registry/helpers/helpers.go:23.57,25.16 2 1
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github.com/containrrr/watchtower/pkg/registry/helpers/helpers.go:36.2,36.22 1 1
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github.com/containrrr/watchtower/pkg/registry/helpers/helpers.go:29.67,31.3 1 1
github.com/containrrr/watchtower/pkg/registry/helpers/helpers.go:33.16,35.3 1 0
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github.com/containrrr/watchtower/pkg/notifications/notifier.go:27.2,31.16 3 0
github.com/containrrr/watchtower/pkg/notifications/notifier.go:34.2,34.26 1 0
github.com/containrrr/watchtower/pkg/notifications/notifier.go:53.2,53.10 1 0
github.com/containrrr/watchtower/pkg/notifications/notifier.go:23.16,25.3 1 0
github.com/containrrr/watchtower/pkg/notifications/notifier.go:31.16,33.3 1 0
github.com/containrrr/watchtower/pkg/notifications/notifier.go:34.26,36.12 2 0
github.com/containrrr/watchtower/pkg/notifications/notifier.go:50.3,50.32 1 0
github.com/containrrr/watchtower/pkg/notifications/notifier.go:37.18,38.47 1 0
github.com/containrrr/watchtower/pkg/notifications/notifier.go:39.18,40.47 1 0
github.com/containrrr/watchtower/pkg/notifications/notifier.go:41.20,42.49 1 0
github.com/containrrr/watchtower/pkg/notifications/notifier.go:43.19,44.48 1 0
github.com/containrrr/watchtower/pkg/notifications/notifier.go:45.21,46.50 1 0
github.com/containrrr/watchtower/pkg/notifications/notifier.go:47.11,48.49 1 0
github.com/containrrr/watchtower/pkg/notifications/notifier.go:57.40,58.28 1 0
github.com/containrrr/watchtower/pkg/notifications/notifier.go:58.28,60.3 1 0
github.com/containrrr/watchtower/pkg/notifications/notifier.go:64.39,65.28 1 0
github.com/containrrr/watchtower/pkg/notifications/notifier.go:65.28,67.3 1 0
github.com/containrrr/watchtower/pkg/notifications/notifier.go:71.28,72.28 1 0
github.com/containrrr/watchtower/pkg/notifications/notifier.go:72.28,74.3 1 0
github.com/containrrr/watchtower/pkg/notifications/shoutrrr.go:36.86,41.16 4 0
github.com/containrrr/watchtower/pkg/notifications/shoutrrr.go:45.2,59.10 4 0
github.com/containrrr/watchtower/pkg/notifications/shoutrrr.go:41.16,43.3 1 0
github.com/containrrr/watchtower/pkg/notifications/shoutrrr.go:62.49,63.30 1 1
github.com/containrrr/watchtower/pkg/notifications/shoutrrr.go:74.2,74.16 1 1
github.com/containrrr/watchtower/pkg/notifications/shoutrrr.go:63.30,66.28 2 1
github.com/containrrr/watchtower/pkg/notifications/shoutrrr.go:66.28,67.18 1 0
github.com/containrrr/watchtower/pkg/notifications/shoutrrr.go:67.18,70.5 1 0
github.com/containrrr/watchtower/pkg/notifications/shoutrrr.go:77.74,79.59 2 1
github.com/containrrr/watchtower/pkg/notifications/shoutrrr.go:83.2,83.22 1 1
github.com/containrrr/watchtower/pkg/notifications/shoutrrr.go:79.59,81.3 1 0
github.com/containrrr/watchtower/pkg/notifications/shoutrrr.go:86.66,89.2 2 1
github.com/containrrr/watchtower/pkg/notifications/shoutrrr.go:91.52,92.22 1 1
github.com/containrrr/watchtower/pkg/notifications/shoutrrr.go:92.22,94.3 1 1
github.com/containrrr/watchtower/pkg/notifications/shoutrrr.go:97.51,98.45 1 1
github.com/containrrr/watchtower/pkg/notifications/shoutrrr.go:102.2,103.17 2 1
github.com/containrrr/watchtower/pkg/notifications/shoutrrr.go:98.45,100.3 1 0
github.com/containrrr/watchtower/pkg/notifications/shoutrrr.go:106.40,113.2 3 1
github.com/containrrr/watchtower/pkg/notifications/shoutrrr.go:115.53,117.2 1 0
github.com/containrrr/watchtower/pkg/notifications/shoutrrr.go:119.61,120.22 1 1
github.com/containrrr/watchtower/pkg/notifications/shoutrrr.go:126.2,126.12 1 1
github.com/containrrr/watchtower/pkg/notifications/shoutrrr.go:120.22,122.3 1 1
github.com/containrrr/watchtower/pkg/notifications/shoutrrr.go:122.8,125.3 1 0
github.com/containrrr/watchtower/pkg/notifications/shoutrrr.go:129.63,144.35 5 1
github.com/containrrr/watchtower/pkg/notifications/shoutrrr.go:152.2,152.16 1 1
github.com/containrrr/watchtower/pkg/notifications/shoutrrr.go:160.2,160.35 1 1
github.com/containrrr/watchtower/pkg/notifications/shoutrrr.go:164.2,164.12 1 1
github.com/containrrr/watchtower/pkg/notifications/shoutrrr.go:144.35,146.3 1 1
github.com/containrrr/watchtower/pkg/notifications/shoutrrr.go:152.16,154.3 1 1
github.com/containrrr/watchtower/pkg/notifications/shoutrrr.go:160.35,162.3 1 1
github.com/containrrr/watchtower/pkg/notifications/slack.go:18.83,40.2 9 0
github.com/containrrr/watchtower/pkg/notifications/slack.go:42.50,42.51 0 0
github.com/containrrr/watchtower/pkg/notifications/slack.go:44.49,44.50 0 0
github.com/containrrr/watchtower/pkg/notifications/slack.go:46.38,46.39 0 0
github.com/containrrr/watchtower/pkg/notifications/smtp.go:33.110,35.16 2 0
github.com/containrrr/watchtower/pkg/notifications/smtp.go:38.2,39.44 2 0
github.com/containrrr/watchtower/pkg/notifications/smtp.go:42.2,42.42 1 0
github.com/containrrr/watchtower/pkg/notifications/smtp.go:49.2,49.14 1 0
github.com/containrrr/watchtower/pkg/notifications/smtp.go:56.2,56.36 1 0
github.com/containrrr/watchtower/pkg/notifications/smtp.go:59.2,59.26 1 0
github.com/containrrr/watchtower/pkg/notifications/smtp.go:64.2,65.16 2 0
github.com/containrrr/watchtower/pkg/notifications/smtp.go:68.2,69.16 2 0
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github.com/containrrr/watchtower/pkg/registry/auth/auth.go:24.121,30.49 5 1
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github.com/containrrr/watchtower/internal/actions/update.go:164.2,165.43 1 0
github.com/containrrr/watchtower/internal/actions/update.go:160.25,161.12 1 1
github.com/containrrr/watchtower/internal/actions/update.go:165.43,166.37 1 0
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github.com/containrrr/watchtower/internal/actions/update.go:167.54,169.20 2 0

View file

@ -1,4 +1,4 @@
FROM --platform=$BUILDPLATFORM alpine:3.19.0 as alpine FROM --platform=$BUILDPLATFORM alpine:3.11 as alpine
RUN apk add --no-cache \ RUN apk add --no-cache \
ca-certificates \ ca-certificates \
@ -17,7 +17,4 @@ COPY --from=alpine \
EXPOSE 8080 EXPOSE 8080
COPY watchtower / COPY watchtower /
HEALTHCHECK CMD [ "/watchtower", "--health-check"]
ENTRYPOINT ["/watchtower"] ENTRYPOINT ["/watchtower"]

View file

@ -4,15 +4,8 @@
FROM golang:alpine as builder FROM golang:alpine as builder
# use version (for example "v0.3.3") or "main" # use version (for example "v0.3.3") or "master"
ARG WATCHTOWER_VERSION=main ARG WATCHTOWER_VERSION=master
# Pre download required modules to avoid redownloading at each build thanks to docker layer caching.
# Copying go.mod and go.sum ensure to invalid the layer/build cache if there is a change in module requirement
WORKDIR /watchtower
COPY go.mod .
COPY go.sum .
RUN go mod download
RUN apk add --no-cache \ RUN apk add --no-cache \
alpine-sdk \ alpine-sdk \
@ -25,7 +18,7 @@ COPY . /watchtower
RUN \ RUN \
cd /watchtower && \ cd /watchtower && \
\ \
GO111MODULE=on CGO_ENABLED=0 GOOS=linux go build -a -ldflags "-extldflags '-static' -X github.com/containrrr/watchtower/internal/meta.Version=$(git describe --tags)" . && \ GO111MODULE=on CGO_ENABLED=0 GOOS=linux go build -a -ldflags '-extldflags "-static"' . && \
GO111MODULE=on go test ./... -v GO111MODULE=on go test ./... -v
@ -42,6 +35,4 @@ COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certifi
COPY --from=builder /usr/share/zoneinfo /usr/share/zoneinfo COPY --from=builder /usr/share/zoneinfo /usr/share/zoneinfo
COPY --from=builder /watchtower/watchtower /watchtower COPY --from=builder /watchtower/watchtower /watchtower
HEALTHCHECK CMD [ "/watchtower", "--health-check"]
ENTRYPOINT ["/watchtower"] ENTRYPOINT ["/watchtower"]

View file

@ -4,8 +4,8 @@
FROM golang:alpine as builder FROM golang:alpine as builder
# use version (for example "v0.3.3") or "main" # use version (for example "v0.3.3") or "master"
ARG WATCHTOWER_VERSION=main ARG WATCHTOWER_VERSION=master
RUN apk add --no-cache \ RUN apk add --no-cache \
alpine-sdk \ alpine-sdk \
@ -18,7 +18,7 @@ RUN git clone --branch "${WATCHTOWER_VERSION}" https://github.com/containrrr/wat
RUN \ RUN \
cd watchtower && \ cd watchtower && \
\ \
GO111MODULE=on CGO_ENABLED=0 GOOS=linux go build -a -ldflags "-extldflags '-static' -X github.com/containrrr/watchtower/internal/meta.Version=$(git describe --tags)" . && \ GO111MODULE=on CGO_ENABLED=0 GOOS=linux go build -a -ldflags '-extldflags "-static"' . && \
GO111MODULE=on go test ./... -v GO111MODULE=on go test ./... -v
@ -35,6 +35,4 @@ COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/ca-certifi
COPY --from=builder /usr/share/zoneinfo /usr/share/zoneinfo COPY --from=builder /usr/share/zoneinfo /usr/share/zoneinfo
COPY --from=builder /go/watchtower/watchtower /watchtower COPY --from=builder /go/watchtower/watchtower /watchtower
HEALTHCHECK CMD [ "/watchtower", "--health-check"]
ENTRYPOINT ["/watchtower"] ENTRYPOINT ["/watchtower"]

View file

@ -1,17 +0,0 @@
services:
producer:
image: qmcgaw/gluetun:v3.35.0
cap_add:
- NET_ADMIN
environment:
- VPN_SERVICE_PROVIDER=${VPN_SERVICE_PROVIDER}
- OPENVPN_USER=${OPENVPN_USER}
- OPENVPN_PASSWORD=${OPENVPN_PASSWORD}
- SERVER_COUNTRIES=${SERVER_COUNTRIES}
consumer:
depends_on:
- producer
image: nginx:1.25.1
network_mode: "service:producer"
labels:
- "com.centurylinklabs.watchtower.depends-on=/wt-contnet-producer-1"

View file

@ -1,3 +0,0 @@
mkdocs
mkdocs-material
md-toc

View file

@ -27,37 +27,10 @@ In the example above, watchtower will execute an upgrade attempt on the containe
When no arguments are specified, watchtower will monitor all running containers. When no arguments are specified, watchtower will monitor all running containers.
## Secrets/Files
Some arguments can also reference a file, in which case the contents of the file are used as the value.
This can be used to avoid putting secrets in the configuration file or command line.
The following arguments are currently supported (including their corresponding `WATCHTOWER_` environment variables):
- `notification-url`
- `notification-email-server-password`
- `notification-slack-hook-url`
- `notification-msteams-hook`
- `notification-gotify-token`
- `http-api-token`
### Example docker-compose usage
```yaml
secrets:
access_token:
file: access_token
services:
watchtower:
secrets:
- access_token
environment:
- WATCHTOWER_HTTP_API_TOKEN=/run/secrets/access_token
```
## Help ## Help
Shows documentation about the supported flags. Shows documentation about the supported flags.
```text ```
Argument: --help Argument: --help
Environment Variable: N/A Environment Variable: N/A
Type: N/A Type: N/A
@ -66,9 +39,9 @@ Environment Variable: N/A
## Time Zone ## Time Zone
Sets the time zone to be used by WatchTower's logs and the optional Cron scheduling argument (--schedule). If this environment variable is not set, Watchtower will use the default time zone: UTC. Sets the time zone to be used by WatchTower's logs and the optional Cron scheduling argument (--schedule). If this environment variable is not set, Watchtower will use the default time zone: UTC.
To find out the right value, see [this list](https://en.wikipedia.org/wiki/List_of_tz_database_time_zones), find your location and use the value in _TZ Database Name_, e.g _Europe/Rome_. The timezone can alternatively be set by volume mounting your hosts /etc/localtime file. `-v /etc/localtime:/etc/localtime:ro` To find out the right value, see [this list](https://en.wikipedia.org/wiki/List_of_tz_database_time_zones), find your location and use the value in _TZ Database Name_, e.g _Europe/Rome_. The timezone can alternatively be set by volume mounting your hosts /etc/timezone file. `-v /etc/timezone:/etc/timezone:ro`
```text ```
Argument: N/A Argument: N/A
Environment Variable: TZ Environment Variable: TZ
Type: String Type: String
@ -78,17 +51,17 @@ Environment Variable: TZ
## Cleanup ## Cleanup
Removes old images after updating. When this flag is specified, watchtower will remove the old image after restarting a container with a new image. Use this option to prevent the accumulation of orphaned images on your system as containers are updated. Removes old images after updating. When this flag is specified, watchtower will remove the old image after restarting a container with a new image. Use this option to prevent the accumulation of orphaned images on your system as containers are updated.
```text ```
Argument: --cleanup Argument: --cleanup
Environment Variable: WATCHTOWER_CLEANUP Environment Variable: WATCHTOWER_CLEANUP
Type: Boolean Type: Boolean
Default: false Default: false
``` ```
## Remove anonymous volumes ## Remove attached volumes
Removes anonymous volumes after updating. When this flag is specified, watchtower will remove all anonymous volumes from the container before restarting with a new image. Named volumes will not be removed! Removes attached volumes after updating. When this flag is specified, watchtower will remove all attached volumes from the container before restarting with a new image. Use this option to force new volumes to be populated as containers are updated.
```text ```
Argument: --remove-volumes Argument: --remove-volumes
Environment Variable: WATCHTOWER_REMOVE_VOLUMES Environment Variable: WATCHTOWER_REMOVE_VOLUMES
Type: Boolean Type: Boolean
@ -98,11 +71,7 @@ Environment Variable: WATCHTOWER_REMOVE_VOLUMES
## Debug ## Debug
Enable debug mode with verbose logging. Enable debug mode with verbose logging.
!!! note "Notes" ```
Alias for `--log-level debug`. See [Maximum log level](#maximum-log-level).
Does _not_ take an argument when used as an argument. Using `--debug true` will **not** work.
```text
Argument: --debug, -d Argument: --debug, -d
Environment Variable: WATCHTOWER_DEBUG Environment Variable: WATCHTOWER_DEBUG
Type: Boolean Type: Boolean
@ -112,43 +81,17 @@ Environment Variable: WATCHTOWER_DEBUG
## Trace ## Trace
Enable trace mode with very verbose logging. Caution: exposes credentials! Enable trace mode with very verbose logging. Caution: exposes credentials!
!!! note "Notes" ```
Alias for `--log-level trace`. See [Maximum log level](#maximum-log-level).
Does _not_ take an argument when used as an argument. Using `--trace true` will **not** work.
```text
Argument: --trace Argument: --trace
Environment Variable: WATCHTOWER_TRACE Environment Variable: WATCHTOWER_TRACE
Type: Boolean Type: Boolean
Default: false Default: false
``` ```
## Maximum log level
The maximum log level that will be written to STDERR (shown in `docker log` when used in a container).
```text
Argument: --log-level
Environment Variable: WATCHTOWER_LOG_LEVEL
Possible values: panic, fatal, error, warn, info, debug or trace
Default: info
```
## Logging format
Sets what logging format to use for console output.
```text
Argument: --log-format, -l
Environment Variable: WATCHTOWER_LOG_FORMAT
Possible values: Auto, LogFmt, Pretty or JSON
Default: Auto
```
## ANSI colors ## ANSI colors
Disable ANSI color escape codes in log output. Disable ANSI color escape codes in log output.
```text ```
Argument: --no-color Argument: --no-color
Environment Variable: NO_COLOR Environment Variable: NO_COLOR
Type: Boolean Type: Boolean
@ -158,7 +101,7 @@ Environment Variable: NO_COLOR
## Docker host ## Docker host
Docker daemon socket to connect to. Can be pointed at a remote Docker host by specifying a TCP endpoint as "tcp://hostname:port". Docker daemon socket to connect to. Can be pointed at a remote Docker host by specifying a TCP endpoint as "tcp://hostname:port".
```text ```
Argument: --host, -H Argument: --host, -H
Environment Variable: DOCKER_HOST Environment Variable: DOCKER_HOST
Type: String Type: String
@ -168,7 +111,7 @@ Environment Variable: DOCKER_HOST
## Docker API version ## Docker API version
The API version to use by the Docker client for connecting to the Docker daemon. The minimum supported version is 1.24. The API version to use by the Docker client for connecting to the Docker daemon. The minimum supported version is 1.24.
```text ```
Argument: --api-version, -a Argument: --api-version, -a
Environment Variable: DOCKER_API_VERSION Environment Variable: DOCKER_API_VERSION
Type: String Type: String
@ -178,7 +121,7 @@ Environment Variable: DOCKER_API_VERSION
## Include restarting ## Include restarting
Will also include restarting containers. Will also include restarting containers.
```text ```
Argument: --include-restarting Argument: --include-restarting
Environment Variable: WATCHTOWER_INCLUDE_RESTARTING Environment Variable: WATCHTOWER_INCLUDE_RESTARTING
Type: Boolean Type: Boolean
@ -188,8 +131,8 @@ Environment Variable: WATCHTOWER_INCLUDE_RESTARTING
## Include stopped ## Include stopped
Will also include created and exited containers. Will also include created and exited containers.
```text ```
Argument: --include-stopped, -S Argument: --include-stopped
Environment Variable: WATCHTOWER_INCLUDE_STOPPED Environment Variable: WATCHTOWER_INCLUDE_STOPPED
Type: Boolean Type: Boolean
Default: false Default: false
@ -198,7 +141,7 @@ Environment Variable: WATCHTOWER_INCLUDE_STOPPED
## Revive stopped ## Revive stopped
Start any stopped containers that have had their image updated. This argument is only usable with the `--include-stopped` argument. Start any stopped containers that have had their image updated. This argument is only usable with the `--include-stopped` argument.
```text ```
Argument: --revive-stopped Argument: --revive-stopped
Environment Variable: WATCHTOWER_REVIVE_STOPPED Environment Variable: WATCHTOWER_REVIVE_STOPPED
Type: Boolean Type: Boolean
@ -208,7 +151,7 @@ Environment Variable: WATCHTOWER_REVIVE_STOPPED
## Poll interval ## Poll interval
Poll interval (in seconds). This value controls how frequently watchtower will poll for new images. Either `--schedule` or a poll interval can be defined, but not both. Poll interval (in seconds). This value controls how frequently watchtower will poll for new images. Either `--schedule` or a poll interval can be defined, but not both.
```text ```
Argument: --interval, -i Argument: --interval, -i
Environment Variable: WATCHTOWER_POLL_INTERVAL Environment Variable: WATCHTOWER_POLL_INTERVAL
Type: Integer Type: Integer
@ -216,9 +159,9 @@ Environment Variable: WATCHTOWER_POLL_INTERVAL
``` ```
## Filter by enable label ## Filter by enable label
Monitor and update containers that have a `com.centurylinklabs.watchtower.enable` label set to true. Update containers that have a `com.centurylinklabs.watchtower.enable` label set to true.
```text ```
Argument: --label-enable Argument: --label-enable
Environment Variable: WATCHTOWER_LABEL_ENABLE Environment Variable: WATCHTOWER_LABEL_ENABLE
Type: Boolean Type: Boolean
@ -226,34 +169,16 @@ Environment Variable: WATCHTOWER_LABEL_ENABLE
``` ```
## Filter by disable label ## Filter by disable label
__Do not__ Monitor and update containers that have `com.centurylinklabs.watchtower.enable` label set to false and **Do not** update containers that have `com.centurylinklabs.watchtower.enable` label set to false and no `--label-enable` argument is passed. Note that only one or the other (targeting by enable label) can be used at the same time to target containers.
no `--label-enable` argument is passed. Note that only one or the other (targeting by enable label) can be
used at the same time to target containers.
## Filter by disabling specific container names
Monitor and update containers whose names are not in a given set of names.
This can be used to exclude specific containers, when setting labels is not an option.
The listed containers will be excluded even if they have the enable filter set to true.
```text
Argument: --disable-containers, -x
Environment Variable: WATCHTOWER_DISABLE_CONTAINERS
Type: Comma- or space-separated string list
Default: ""
```
## Without updating containers ## Without updating containers
Will only monitor for new images, send notifications and invoke Will only monitor for new images, send notifications and invoke the [pre-check/post-check hooks](https://containrrr.dev/watchtower/lifecycle-hooks/), but will **not** update the containers.
the [pre-check/post-check hooks](https://containrrr.dev/watchtower/lifecycle-hooks/), but will __not__ update the
containers.
!!! note > **⚠️ Please note**
Due to Docker API limitations the latest image will still be pulled from the registry. >
The HEAD digest checks allows watchtower to skip pulling when there are no changes, but to know _what_ has changed it > Due to Docker API limitations the latest image will still be pulled from the registry.
will still do a pull whenever the repository digest doesn't match the local image digest.
```text ```
Argument: --monitor-only Argument: --monitor-only
Environment Variable: WATCHTOWER_MONITOR_ONLY Environment Variable: WATCHTOWER_MONITOR_ONLY
Type: Boolean Type: Boolean
@ -262,23 +187,10 @@ Environment Variable: WATCHTOWER_MONITOR_ONLY
Note that monitor-only can also be specified on a per-container basis with the `com.centurylinklabs.watchtower.monitor-only` label set on those containers. Note that monitor-only can also be specified on a per-container basis with the `com.centurylinklabs.watchtower.monitor-only` label set on those containers.
See [With label taking precedence over arguments](#With-label-taking-precedence-over-arguments) for behavior when both argument and label are set
## With label taking precedence over arguments
By default, arguments will take precedence over labels. This means that if you set `WATCHTOWER_MONITOR_ONLY` to true or use `--monitor-only`, a container with `com.centurylinklabs.watchtower.monitor-only` set to false will not be updated. If you set `WATCHTOWER_LABEL_TAKE_PRECEDENCE` to true or use `--label-take-precedence`, then the container will also be updated. This also apply to the no pull option. if you set `WATCHTOWER_NO_PULL` to true or use `--no-pull`, a container with `com.centurylinklabs.watchtower.no-pull` set to false will not pull the new image. If you set `WATCHTOWER_LABEL_TAKE_PRECEDENCE` to true or use `--label-take-precedence`, then the container will pull image
```text
Argument: --label-take-precedence
Environment Variable: WATCHTOWER_LABEL_TAKE_PRECEDENCE
Type: Boolean
Default: false
```
## Without restarting containers ## Without restarting containers
Do not restart containers after updating. This option can be useful when the start of the containers Do not restart containers after updating. This option can be useful when the start of the containers
is managed by an external system such as systemd. is managed by an external system such as systemd.
```text ```
Argument: --no-restart Argument: --no-restart
Environment Variable: WATCHTOWER_NO_RESTART Environment Variable: WATCHTOWER_NO_RESTART
Type: Boolean Type: Boolean
@ -291,22 +203,17 @@ new images from the registry. Instead it will only monitor the local image cache
Use this option if you are building new images directly on the Docker host without pushing Use this option if you are building new images directly on the Docker host without pushing
them to a registry. them to a registry.
```text ```
Argument: --no-pull Argument: --no-pull
Environment Variable: WATCHTOWER_NO_PULL Environment Variable: WATCHTOWER_NO_PULL
Type: Boolean Type: Boolean
Default: false Default: false
``` ```
Note that no-pull can also be specified on a per-container basis with the
`com.centurylinklabs.watchtower.no-pull` label set on those containers.
See [With label taking precedence over arguments](#With-label-taking-precedence-over-arguments) for behavior when both argument and label are set
## Without sending a startup message ## Without sending a startup message
Do not send a message after watchtower started. Otherwise there will be an info-level notification. Do not send a message after watchtower started. Otherwise there will be an info-level notification.
```text ```
Argument: --no-startup-message Argument: --no-startup-message
Environment Variable: WATCHTOWER_NO_STARTUP_MESSAGE Environment Variable: WATCHTOWER_NO_STARTUP_MESSAGE
Type: Boolean Type: Boolean
@ -316,55 +223,37 @@ Environment Variable: WATCHTOWER_NO_STARTUP_MESSAGE
## Run once ## Run once
Run an update attempt against a container name list one time immediately and exit. Run an update attempt against a container name list one time immediately and exit.
```text ```
Argument: --run-once, -R Argument: --run-once
Environment Variable: WATCHTOWER_RUN_ONCE Environment Variable: WATCHTOWER_RUN_ONCE
Type: Boolean Type: Boolean
Default: false Default: false
``` ```
## HTTP API Mode ## HTTP API Mode
Runs Watchtower in HTTP API mode, only allowing image updates to be triggered by an HTTP request. Runs Watchtower in HTTP API mode, only allowing image updates to be triggered by an HTTP request. For details see [HTTP API](https://containrrr.github.io/watchtower/http-api-mode).
For details see [HTTP API](https://containrrr.dev/watchtower/http-api-mode).
```text ```
Argument: --http-api-update Argument: --http-api-update
Environment Variable: WATCHTOWER_HTTP_API_UPDATE Environment Variable: WATCHTOWER_HTTP_API
Type: Boolean Type: Boolean
Default: false Default: false
``` ```
## HTTP API Token ## HTTP API Token
Sets an authentication token to HTTP API requests. Sets an authentication token to HTTP API requests.
Can also reference a file, in which case the contents of the file are used.
```text ```
Argument: --http-api-token Argument: --http-api-token
Environment Variable: WATCHTOWER_HTTP_API_TOKEN Environment Variable: WATCHTOWER_HTTP_API_TOKEN
Type: String Type: String
Default: - Default: -
``` ```
## HTTP API periodic polls
Keep running periodic updates if the HTTP API mode is enabled, otherwise the HTTP API would prevent periodic polls.
```text
Argument: --http-api-periodic-polls
Environment Variable: WATCHTOWER_HTTP_API_PERIODIC_POLLS
Type: Boolean
Default: false
```
## Filter by scope ## Filter by scope
Update containers that have a `com.centurylinklabs.watchtower.scope` label set with the same value as the given argument. Update containers that have a `com.centurylinklabs.watchtower.scope` label set with the same value as the given argument. This enables [running multiple instances](https://containrrr.github.io/watchtower/running-multiple-instances).
This enables [running multiple instances](https://containrrr.dev/watchtower/running-multiple-instances).
!!! note "Filter by lack of scope" ```
If you want other instances of watchtower to ignore the scoped containers, set this argument to `none`.
When omitted, watchtower will update all containers regardless of scope.
```text
Argument: --scope Argument: --scope
Environment Variable: WATCHTOWER_SCOPE Environment Variable: WATCHTOWER_SCOPE
Type: String Type: String
@ -374,7 +263,7 @@ Environment Variable: WATCHTOWER_SCOPE
## HTTP API Metrics ## HTTP API Metrics
Enables a metrics endpoint, exposing prometheus metrics via HTTP. See [Metrics](metrics.md) for details. Enables a metrics endpoint, exposing prometheus metrics via HTTP. See [Metrics](metrics.md) for details.
```text ```
Argument: --http-api-metrics Argument: --http-api-metrics
Environment Variable: WATCHTOWER_HTTP_API_METRICS Environment Variable: WATCHTOWER_HTTP_API_METRICS
Type: Boolean Type: Boolean
@ -385,7 +274,7 @@ Environment Variable: WATCHTOWER_HTTP_API_METRICS
[Cron expression](https://pkg.go.dev/github.com/robfig/cron@v1.2.0?tab=doc#hdr-CRON_Expression_Format) in 6 fields (rather than the traditional 5) which defines when and how often to check for new images. Either `--interval` or the schedule expression [Cron expression](https://pkg.go.dev/github.com/robfig/cron@v1.2.0?tab=doc#hdr-CRON_Expression_Format) in 6 fields (rather than the traditional 5) which defines when and how often to check for new images. Either `--interval` or the schedule expression
can be defined, but not both. An example: `--schedule "0 0 4 * * *"` can be defined, but not both. An example: `--schedule "0 0 4 * * *"`
```text ```
Argument: --schedule, -s Argument: --schedule, -s
Environment Variable: WATCHTOWER_SCHEDULE Environment Variable: WATCHTOWER_SCHEDULE
Type: String Type: String
@ -396,7 +285,7 @@ Environment Variable: WATCHTOWER_SCHEDULE
Restart one image at time instead of stopping and starting all at once. Useful in conjunction with lifecycle hooks Restart one image at time instead of stopping and starting all at once. Useful in conjunction with lifecycle hooks
to implement zero-downtime deploy. to implement zero-downtime deploy.
```text ```
Argument: --rolling-restart Argument: --rolling-restart
Environment Variable: WATCHTOWER_ROLLING_RESTART Environment Variable: WATCHTOWER_ROLLING_RESTART
Type: Boolean Type: Boolean
@ -406,7 +295,7 @@ Environment Variable: WATCHTOWER_ROLLING_RESTART
## Wait until timeout ## Wait until timeout
Timeout before the container is forcefully stopped. When set, this option will change the default (`10s`) wait time to the given value. An example: `--stop-timeout 30s` will set the timeout to 30 seconds. Timeout before the container is forcefully stopped. When set, this option will change the default (`10s`) wait time to the given value. An example: `--stop-timeout 30s` will set the timeout to 30 seconds.
```text ```
Argument: --stop-timeout Argument: --stop-timeout
Environment Variable: WATCHTOWER_TIMEOUT Environment Variable: WATCHTOWER_TIMEOUT
Type: Duration Type: Duration
@ -414,54 +303,11 @@ Environment Variable: WATCHTOWER_TIMEOUT
``` ```
## TLS Verification ## TLS Verification
Use TLS when connecting to the Docker socket and verify the server's certificate. See below for options used to configure notifications.
Use TLS when connecting to the Docker socket and verify the server's certificate. See below for options used to ```
configure notifications.
```text
Argument: --tlsverify Argument: --tlsverify
Environment Variable: DOCKER_TLS_VERIFY Environment Variable: DOCKER_TLS_VERIFY
Type: Boolean Type: Boolean
Default: false Default: false
``` ```
## HEAD failure warnings
When to warn about HEAD pull requests failing. Auto means that it will warn when the registry is known to handle the
requests and may rate limit pull requests (mainly docker.io).
```text
Argument: --warn-on-head-failure
Environment Variable: WATCHTOWER_WARN_ON_HEAD_FAILURE
Possible values: always, auto, never
Default: auto
```
## Health check
Returns a success exit code to enable usage with docker `HEALTHCHECK`. This check is naive and only returns checks whether there is another process running inside the container, as it is the only known form of failure state for watchtowers container.
!!! note "Only for HEALTHCHECK use"
Never put this on the main container executable command line as it is only meant to be run from docker HEALTHCHECK.
```text
Argument: --health-check
```
## Programatic Output (porcelain)
Writes the session results to STDOUT using a stable, machine-readable format (indicated by the argument VERSION).
Alias for:
```text
--notification-url logger://
--notification-log-stdout
--notification-report
--notification-template porcelain.VERSION.summary-no-log
Argument: --porcelain, -P
Environment Variable: WATCHTOWER_PORCELAIN
Possible values: v1
Default: -
```

View file

@ -2,65 +2,40 @@ By default, watchtower will watch all containers. However, sometimes only some c
There are two options: There are two options:
- **Fully exclude**: You can choose to exclude containers entirely from being watched by watchtower. - **Fully exclude**: You can choose to exclude containers entirely from being watched by watchtower.
- **Monitor only**: In this mode, watchtower checks for container updates, sends notifications and invokes the [pre-check/post-check hooks](https://containrrr.dev/watchtower/lifecycle-hooks/) on the containers but does **not** perform the update. - **Monitor only**: In this mode, watchtower checks for container updates, sends notifications and invokes the [pre-check/post-check hooks](https://containrrr.dev/watchtower/lifecycle-hooks/) on the containers but does **not** perform the update.
## Full Exclude ## Full Exclude
If you need to exclude some containers, set the _com.centurylinklabs.watchtower.enable_ label to `false`. For clarity this should be set **on the container(s)** you wish to be ignored, this is not set on watchtower. If you need to exclude some containers, set the _com.centurylinklabs.watchtower.enable_ label to `false`.
=== "dockerfile" ```docker
LABEL com.centurylinklabs.watchtower.enable="false"
```
```docker Or, it can be specified as part of the `docker run` command line:
LABEL com.centurylinklabs.watchtower.enable="false"
```
=== "docker run"
```bash ```bash
docker run -d --label=com.centurylinklabs.watchtower.enable=false someimage docker run -d --label=com.centurylinklabs.watchtower.enable=false someimage
``` ```
=== "docker-compose" If you need to [include only containers with the enable label](https://containrrr.github.io/watchtower/arguments/#filter_by_enable_label), pass the `--label-enable` flag or the `WATCHTOWER_LABEL_ENABLE` environment variable on startup and set the _com.centurylinklabs.watchtower.enable_ label with a value of `true` for the containers you want to watch.
``` yaml ```docker
version: "3" LABEL com.centurylinklabs.watchtower.enable="true"
services: ```
someimage:
container_name: someimage
labels:
- "com.centurylinklabs.watchtower.enable=false"
```
If instead you want to [only include containers with the enable label](https://containrrr.github.io/watchtower/arguments/#filter_by_enable_label), pass the `--label-enable` flag or the `WATCHTOWER_LABEL_ENABLE` environment variable on startup for watchtower and set the _com.centurylinklabs.watchtower.enable_ label with a value of `true` on the containers you want to watch. Or, it can be specified as part of the `docker run` command line:
=== "dockerfile" ```bash
docker run -d --label=com.centurylinklabs.watchtower.enable=true someimage
```docker ```
LABEL com.centurylinklabs.watchtower.enable="true"
```
=== "docker run"
```bash
docker run -d --label=com.centurylinklabs.watchtower.enable=true someimage
```
=== "docker-compose"
``` yaml
version: "3"
services:
someimage:
container_name: someimage
labels:
- "com.centurylinklabs.watchtower.enable=true"
```
If you wish to create a monitoring scope, you will need to [run multiple instances and set a scope for each of them](https://containrrr.github.io/watchtower/running-multiple-instances). If you wish to create a monitoring scope, you will need to [run multiple instances and set a scope for each of them](https://containrrr.github.io/watchtower/running-multiple-instances).
Watchtower filters running containers by testing them against each configured criteria. A container is monitored if all criteria are met. For example: Watchtower filters running containers by testing them against each configured criteria. A container is monitored if all criteria are met. For example:
- If a container's name is on the monitoring name list (not empty `--name` argument) but it is not enabled (_centurylinklabs.watchtower.enable=false_), it won't be monitored;
- If a container's name is on the monitoring name list (not empty `--name` argument) but it is not enabled (_centurylinklabs.watchtower.enable=false_), it won't be monitored; - If a container's name is not on the monitoring name list (not empty `--name` argument), even if it is enabled (_centurylinklabs.watchtower.enable=true_ and `--label-enable` flag is set), it won't be monitored;
- If a container's name is not on the monitoring name list (not empty `--name` argument), even if it is enabled (_centurylinklabs.watchtower.enable=true_ and `--label-enable` flag is set), it won't be monitored;
## Monitor Only ## Monitor Only
@ -79,3 +54,5 @@ docker run -d --label=com.centurylinklabs.watchtower.monitor-only=true someimage
``` ```
When the label is specified on a container, watchtower treats that container exactly as if [`WATCHTOWER_MONITOR_ONLY`](https://containrrr.dev/watchtower/arguments/#without_updating_containers) was set, but the effect is limited to the individual container. When the label is specified on a container, watchtower treats that container exactly as if [`WATCHTOWER_MONITOR_ONLY`](https://containrrr.dev/watchtower/arguments/#without_updating_containers) was set, but the effect is limited to the individual container.

View file

@ -1,6 +1,6 @@
Watchtower provides an HTTP API mode that enables an HTTP endpoint that can be requested to trigger container updating. The current available endpoint list is: Watchtower provides an HTTP API mode that enables an HTTP endpoint that can be requested to trigger container updating. The current available endpoint list is:
- `/v1/update` - triggers an update for all of the containers monitored by this Watchtower instance. - `/v1/update` - triggers an update for all of the containers monitored by this Watchtower instance.
--- ---
@ -28,18 +28,8 @@ services:
- 8080:8080 - 8080:8080
``` ```
By default, enabling this mode prevents periodic polls (i.e. what is specified using `--interval` or `--schedule`). To run periodic updates regardless, pass `--http-api-periodic-polls`.
Notice that there is an environment variable named WATCHTOWER_HTTP_API_TOKEN. To prevent external services from accidentally triggering image updates, all of the requests have to contain a "Token" field, valued as the token defined in WATCHTOWER_HTTP_API_TOKEN, in their headers. In this case, there is a port bind to the host machine, allowing to request localhost:8080 to reach Watchtower. The following `curl` command would trigger an image update: Notice that there is an environment variable named WATCHTOWER_HTTP_API_TOKEN. To prevent external services from accidentally triggering image updates, all of the requests have to contain a "Token" field, valued as the token defined in WATCHTOWER_HTTP_API_TOKEN, in their headers. In this case, there is a port bind to the host machine, allowing to request localhost:8080 to reach Watchtower. The following `curl` command would trigger an image update:
```bash ```bash
curl -H "Authorization: Bearer mytoken" localhost:8080/v1/update curl -H "Authorization: Bearer mytoken" localhost:8080/v1/update
``` ```
---
In order to update only certain images, the image names can be provided as URL query parameters. The following `curl` command would trigger an update for the images `foo/bar` and `foo/baz`:
```bash
curl -H "Authorization: Bearer mytoken" localhost:8080/v1/update?image=foo/bar,foo/baz
```

View file

@ -1,5 +1,5 @@
<p style="text-align: center; margin-left: 1.6rem;"> <p style="text-align: center; margin-left: 1.6rem;">
<img alt="Logotype depicting a lighthouse" src="./images/logo-450px.png" width="450" /> <img src="./images/logo-450px.png" width="450" />
</p> </p>
<h1 align="center"> <h1 align="center">
Watchtower Watchtower
@ -12,11 +12,14 @@
<img alt="Circle CI" src="https://circleci.com/gh/containrrr/watchtower.svg?style=shield" /> <img alt="Circle CI" src="https://circleci.com/gh/containrrr/watchtower.svg?style=shield" />
</a> </a>
<a href="https://codecov.io/gh/containrrr/watchtower"> <a href="https://codecov.io/gh/containrrr/watchtower">
<img alt="Codecov" src="https://codecov.io/gh/containrrr/watchtower/branch/main/graph/badge.svg"> <img alt="Codecov" src="https://codecov.io/gh/containrrr/watchtower/branch/master/graph/badge.svg?token=8pxWgB380Y">
</a> </a>
<a href="https://godoc.org/github.com/containrrr/watchtower"> <a href="https://godoc.org/github.com/containrrr/watchtower">
<img alt="GoDoc" src="https://godoc.org/github.com/containrrr/watchtower?status.svg" /> <img alt="GoDoc" src="https://godoc.org/github.com/containrrr/watchtower?status.svg" />
</a> </a>
<a href="https://microbadger.com/images/containrrr/watchtower">
<img alt="Microbadger" src="https://images.microbadger.com/badges/image/containrrr/watchtower.svg" />
</a>
<a href="https://goreportcard.com/report/github.com/containrrr/watchtower"> <a href="https://goreportcard.com/report/github.com/containrrr/watchtower">
<img alt="Go Report Card" src="https://goreportcard.com/badge/github.com/containrrr/watchtower" /> <img alt="Go Report Card" src="https://goreportcard.com/badge/github.com/containrrr/watchtower" />
</a> </a>
@ -39,27 +42,11 @@
## Quick Start ## Quick Start
With watchtower you can update the running version of your containerized app simply by pushing a new image to the Docker With watchtower you can update the running version of your containerized app simply by pushing a new image to the Docker Hub or your own image registry. Watchtower will pull down your new image, gracefully shut down your existing container and restart it with the same options that were used when it was deployed initially. Run the watchtower container with the following command:
Hub or your own image registry. Watchtower will pull down your new image, gracefully shut down your existing container
and restart it with the same options that were used when it was deployed initially. Run the watchtower container with
the following command:
=== "docker run" ```
$ docker run -d \
```bash
$ docker run -d \
--name watchtower \ --name watchtower \
-v /var/run/docker.sock:/var/run/docker.sock \ -v /var/run/docker.sock:/var/run/docker.sock \
containrrr/watchtower containrrr/watchtower
``` ```
=== "docker-compose.yml"
```yaml
version: "3"
services:
watchtower:
image: containrrr/watchtower
volumes:
- /var/run/docker.sock:/var/run/docker.sock
```

View file

@ -4,12 +4,12 @@ With watchtower you can update the running version of your containerized app sim
For example, let's say you were running watchtower along with an instance of _centurylink/wetty-cli_ image: For example, let's say you were running watchtower along with an instance of _centurylink/wetty-cli_ image:
```text ```bash
$ docker ps $ docker ps
CONTAINER ID IMAGE STATUS PORTS NAMES CONTAINER ID IMAGE STATUS PORTS NAMES
967848166a45 centurylink/wetty-cli Up 10 minutes 0.0.0.0:8080->3000/tcp wetty 967848166a45 centurylink/wetty-cli Up 10 minutes 0.0.0.0:8080->3000/tcp wetty
6cc4d2a9d1a5 containrrr/watchtower Up 15 minutes watchtower 6cc4d2a9d1a5 containrrr/watchtower Up 15 minutes watchtower
``` ```
Every day watchtower will pull the latest _centurylink/wetty-cli_ image and compare it to the one that was used to run the "wetty" container. If it sees that the image has changed it will stop/remove the "wetty" container and then restart it using the new image and the same `docker run` options that were used to start the container initially (in this case, that would include the `-p 8080:3000` port mapping). Every few minutes watchtower will pull the latest _centurylink/wetty-cli_ image and compare it to the one that was used to run the "wetty" container. If it sees that the image has changed it will stop/remove the "wetty" container and then restart it using the new image and the same `docker run` options that were used to start the container initially (in this case, that would include the `-p 8080:3000` port mapping).

View file

@ -1,19 +1,15 @@
## Executing commands before and after updating ## Executing commands before and after updating
!!! note > **DO NOTE**: These are shell commands executed with `sh`, and therefore require the
These are shell commands executed with `sh`, and therefore require the container to provide the `sh` > container to provide the `sh` executable.
executable.
> **DO NOTE**: If the container is not running then lifecycle hooks can not run and therefore
> the update is executed without running any lifecycle hooks.
It is possible to execute _pre/post\-check_ and _pre/post\-update_ commands It is possible to execute _pre/post\-check_ and _pre/post\-update_ commands
**inside** every container updated by watchtower. **inside** every container updated by watchtower.
- The _pre-check_ command is executed for each container prior to every update cycle. - The _pre-check_ command is executed for each container prior to every update cycle.
- The _pre-update_ command is executed before stopping the container when an update is about to start. - The _pre-update_ command is executed before stopping the container when an update is about to start.
- The _post-update_ command is executed after restarting the updated container - The _post-update_ command is executed after restarting the updated container
- The _post-check_ command is executed for each container post every update cycle. - The _post-check_ command is executed for each container post every update cycle.
This feature is disabled by default. To enable it, you need to set the option This feature is disabled by default. To enable it, you need to set the option
`--enable-lifecycle-hooks` on the command line, or set the environment variable `--enable-lifecycle-hooks` on the command line, or set the environment variable
@ -30,35 +26,35 @@ The commands are specified using docker container labels, the following are curr
| Post Update | `com.centurylinklabs.watchtower.lifecycle.post-update` | | Post Update | `com.centurylinklabs.watchtower.lifecycle.post-update` |
| Post Check | `com.centurylinklabs.watchtower.lifecycle.post-check` | | Post Check | `com.centurylinklabs.watchtower.lifecycle.post-check` |
These labels can be declared as instructions in a Dockerfile (with some example .sh files) or be specified as part of These labels can be declared as instructions in a Dockerfile (with some example .sh files):
the `docker run` command line:
=== "Dockerfile" ```docker
```docker LABEL com.centurylinklabs.watchtower.lifecycle.pre-check="/sync.sh"
LABEL com.centurylinklabs.watchtower.lifecycle.pre-check="/sync.sh" LABEL com.centurylinklabs.watchtower.lifecycle.pre-update="/dump-data.sh"
LABEL com.centurylinklabs.watchtower.lifecycle.pre-update="/dump-data.sh" LABEL com.centurylinklabs.watchtower.lifecycle.post-update="/restore-data.sh"
LABEL com.centurylinklabs.watchtower.lifecycle.post-update="/restore-data.sh" LABEL com.centurylinklabs.watchtower.lifecycle.post-check="/send-heartbeat.sh"
LABEL com.centurylinklabs.watchtower.lifecycle.post-check="/send-heartbeat.sh" ```
```
=== "docker run" Or be specified as part of the `docker run` command line:
```bash
docker run -d \ ```bash
--label=com.centurylinklabs.watchtower.lifecycle.pre-check="/sync.sh" \ docker run -d \
--label=com.centurylinklabs.watchtower.lifecycle.pre-update="/dump-data.sh" \ --label=com.centurylinklabs.watchtower.lifecycle.pre-check="/sync.sh" \
--label=com.centurylinklabs.watchtower.lifecycle.post-update="/restore-data.sh" \ --label=com.centurylinklabs.watchtower.lifecycle.pre-update="/dump-data.sh" \
someimage --label=com.centurylinklabs.watchtower.lifecycle.post-check="/send-heartbeat.sh" \ --label=com.centurylinklabs.watchtower.lifecycle.post-update="/restore-data.sh" \
``` someimage
--label=com.centurylinklabs.watchtower.lifecycle.post-check="/send-heartbeat.sh" \
```
### Timeouts ### Timeouts
The timeout for all lifecycle commands is 60 seconds. After that, a timeout will The timeout for all lifecycle commands is 60 seconds. After that, a timeout will
occur, forcing Watchtower to continue the update loop. occur, forcing Watchtower to continue the update loop.
#### Pre- or Post-update timeouts #### Pre-update timeouts
For the `pre-update` or `post-update` lifecycle command, it is possible to override this timeout to For the `pre-update` lifecycle command, it is possible to override this timeout to
allow the script to finish before forcefully killing it. This is done by adding the allow the script to finish before forcefully killing it. This is done by adding the
label `com.centurylinklabs.watchtower.lifecycle.pre-update-timeout` or post-update-timeout respectively followed by label `com.centurylinklabs.watchtower.lifecycle.pre-update-timeout` followed by
the timeout expressed in minutes. the timeout expressed in minutes.
If the label value is explicitly set to `0`, the timeout will be disabled. If the label value is explicitly set to `0`, the timeout will be disabled.
@ -66,5 +62,5 @@ If the label value is explicitly set to `0`, the timeout will be disabled.
### Execution failure ### Execution failure
The failure of a command to execute, identified by an exit code different than The failure of a command to execute, identified by an exit code different than
0 or 75 (EX_TEMPFAIL), will not prevent watchtower from updating the container. Only an error 0, will not prevent watchtower from updating the container. Only an error
log statement containing the exit code will be reported. log statement containing the exit code will be reported.

View file

@ -2,6 +2,4 @@ Watchtower will detect if there are links between any of the running containers
For example, imagine you were running a _mysql_ container and a _wordpress_ container which had been linked to the _mysql_ container. If watchtower were to detect that the _mysql_ container required an update, it would first shut down the linked _wordpress_ container followed by the _mysql_ container. When restarting the containers it would handle _mysql_ first and then _wordpress_ to ensure that the link continued to work. For example, imagine you were running a _mysql_ container and a _wordpress_ container which had been linked to the _mysql_ container. If watchtower were to detect that the _mysql_ container required an update, it would first shut down the linked _wordpress_ container followed by the _mysql_ container. When restarting the containers it would handle _mysql_ first and then _wordpress_ to ensure that the link continued to work.
If you want to override existing links, or if you are not using links, you can use special `com.centurylinklabs.watchtower.depends-on` label with dependent container names, separated by a comma. If you want to override existing links you can use special `com.centurylinklabs.watchtower.depends-on` label with dependent container names, separated by a comma.
When you have a depending container that is using `network_mode: service:container` then watchtower will treat that container as an implicit link.

View file

@ -1,14 +1,13 @@
!!! warning "Experimental feature" > **⚠️ Experimental feature**
This feature was added in v1.0.4 and is still considered experimental. If you notice any strange behavior, please raise >
a ticket in the repository issues. > This feature was added in v1.0.4 and is still considered experimental.
> If you notice any strange behavior, please raise a ticket in the repository issues.
Metrics can be used to track how Watchtower behaves over time. Metrics can be used to track how Watchtower behaves over time.
To use this feature, you have to set an [API token](arguments.md#http_api_token) and [enable the metrics API](arguments.md#http_api_metrics), To use this feature, you have to set an [API token](arguments.md#http-api-token) and [enable the metrics API](arguments.md#http-api-metrics),
as well as creating a port mapping for your container for port `8080`. as well as creating a port mapping for your container for port `8080`.
The metrics API endpoint is `/v1/metrics`.
## Available Metrics ## Available Metrics
| Name | Type | Description | | Name | Type | Description |
@ -19,21 +18,6 @@ The metrics API endpoint is `/v1/metrics`.
| `watchtower_scans_total` | Counter | Number of scans since the watchtower started | | `watchtower_scans_total` | Counter | Number of scans since the watchtower started |
| `watchtower_scans_skipped` | Counter | Number of skipped scans since watchtower started | | `watchtower_scans_skipped` | Counter | Number of skipped scans since watchtower started |
## Example Prometheus `scrape_config`
```yaml
scrape_configs:
- job_name: watchtower
scrape_interval: 5s
metrics_path: /v1/metrics
bearer_token: demotoken
static_configs:
- targets:
- 'watchtower:8080'
```
Replace `demotoken` with the Bearer token you have set accordingly.
## Demo ## Demo
The repository contains a demo with prometheus and grafana, available through `docker-compose.yml`. This demo The repository contains a demo with prometheus and grafana, available through `docker-compose.yml`. This demo

View file

@ -1,262 +1,40 @@
# Notifications # Notifications
Watchtower can send notifications when containers are updated. Notifications are sent via hooks in the logging Watchtower can send notifications when containers are updated. Notifications are sent via hooks in the logging system, [logrus](http://github.com/sirupsen/logrus).
system, [logrus](http://github.com/sirupsen/logrus). The types of notifications to send are set by passing a comma-separated list of values to the `--notifications` option (or corresponding environment variable `WATCHTOWER_NOTIFICATIONS`), which has the following valid values:
!!! note "Using multiple notifications with environment variables" - `email` to send notifications via e-mail
There is currently a bug in Viper (https://github.com/spf13/viper/issues/380), which prevents comma-separated slices to - `slack` to send notifications through a Slack webhook
be used when using the environment variable. - `msteams` to send notifications via MSTeams webhook
A workaround is available where we instead put quotes around the environment variable value and replace the commas with - `gotify` to send notifications via Gotify
spaces: - `shoutrrr` to send notifications via [containrrr/shoutrrr](https://github.com/containrrr/shoutrrr)
```
WATCHTOWER_NOTIFICATIONS="slack msteams" > There is currently a [bug](https://github.com/spf13/viper/issues/380) in Viper, which prevents comma-separated slices to be used when using the environment variable. A workaround is available where we instead put quotes around the environment variable value and replace the commas with spaces, as `WATCHTOWER_NOTIFICATIONS="slack msteams"`
```
If you're a `docker-compose` user, make sure to specify environment variables' values in your `.yml` file without double > If you're a `docker-compose` user, make sure to specify environment variables' values in your `.yml` file without double quotes (`"`).
quotes (`"`). This prevents unexpected errors when watchtower starts. >
> This prevents unexpected errors when watchtower starts.
## Settings ## Settings
- `--notifications-level` (env. `WATCHTOWER_NOTIFICATIONS_LEVEL`): Controls the log level which is used for the notifications. If omitted, the default log level is `info`. Possible values are: `panic`, `fatal`, `error`, `warn`, `info`, `debug` or `trace`. - `--notifications-level` (env. `WATCHTOWER_NOTIFICATIONS_LEVEL`): Controls the log level which is used for the notifications. If omitted, the default log level is `info`. Possible values are: `panic`, `fatal`, `error`, `warn`, `info`, `debug` or `trace`.
- `--notifications-hostname` (env. `WATCHTOWER_NOTIFICATIONS_HOSTNAME`): Custom hostname specified in subject/title. Useful to override the operating system hostname. - Watchtower will post a notification every time it is started. This behavior [can be changed](https://containrrr.github.io/watchtower/arguments/#without_sending_a_startup_message) with an argument.
- `--notifications-delay` (env. `WATCHTOWER_NOTIFICATIONS_DELAY`): Delay before sending notifications expressed in seconds.
- Watchtower will post a notification every time it is started. This behavior [can be changed](https://containrrr.github.io/watchtower/arguments/#without_sending_a_startup_message) with an argument.
- `--notification-title-tag` (env. `WATCHTOWER_NOTIFICATION_TITLE_TAG`): Prefix to include in the title. Useful when running multiple watchtowers.
- `--notification-skip-title` (env. `WATCHTOWER_NOTIFICATION_SKIP_TITLE`): Do not pass the title param to notifications. This will not pass a dynamic title override to notification services. If no title is configured for the service, it will remove the title all together.
- `--notification-log-stdout` (env. `WATCHTOWER_NOTIFICATION_LOG_STDOUT`): Enable output from `logger://` shoutrrr service to stdout.
## [Shoutrrr](https://github.com/containrrr/shoutrrr) notifications ## Available services
To send notifications via shoutrrr, the following command-line options, or their corresponding environment variables, can be set:
- `--notification-url` (env. `WATCHTOWER_NOTIFICATION_URL`): The shoutrrr service URL to be used. This option can also reference a file, in which case the contents of the file are used.
Go to [containrrr.dev/shoutrrr/v0.8/services/overview](https://containrrr.dev/shoutrrr/v0.8/services/overview) to
learn more about the different service URLs you can use. You can define multiple services by space separating the
URLs. (See example below)
You can customize the message posted by setting a template.
- `--notification-template` (env. `WATCHTOWER_NOTIFICATION_TEMPLATE`): The template used for the message.
The template is a Go [template](https://golang.org/pkg/text/template/) that either format a list
of [log entries](https://pkg.go.dev/github.com/sirupsen/logrus?tab=doc#Entry) or a `notification.Data` struct.
Simple templates are used unless the `notification-report` flag is specified:
- `--notification-report` (env. `WATCHTOWER_NOTIFICATION_REPORT`): Use the session report as the notification template data.
## Simple templates
The default value if not set is `{{range .}}{{.Message}}{{println}}{{end}}`. The example below uses a template that also
outputs timestamp and log level.
!!! tip "Custom date format"
If you want to adjust the date/time format it must show how the
[reference time](https://golang.org/pkg/time/#pkg-constants) (_Mon Jan 2 15:04:05 MST 2006_) would be displayed in your
custom format.
i.e., The day of the year has to be 1, the month has to be 2 (february), the hour 3 (or 15 for 24h time) etc.
!!! note "Skipping notifications"
To skip sending notifications that do not contain any information, you can wrap your template with `{{if .}}` and `{{end}}`.
Example:
```bash
docker run -d \
--name watchtower \
-v /var/run/docker.sock:/var/run/docker.sock \
-e WATCHTOWER_NOTIFICATION_URL="discord://token@channel slack://watchtower@token-a/token-b/token-c" \
-e WATCHTOWER_NOTIFICATION_TEMPLATE="{{range .}}{{.Time.Format \"2006-01-02 15:04:05\"}} ({{.Level}}): {{.Message}}{{println}}{{end}}" \
containrrr/watchtower
```
## Report templates
The default template for report notifications are the following:
```go
{{- if .Report -}}
{{- with .Report -}}
{{- if ( or .Updated .Failed ) -}}
{{len .Scanned}} Scanned, {{len .Updated}} Updated, {{len .Failed}} Failed
{{- range .Updated}}
- {{.Name}} ({{.ImageName}}): {{.CurrentImageID.ShortID}} updated to {{.LatestImageID.ShortID}}
{{- end -}}
{{- range .Fresh}}
- {{.Name}} ({{.ImageName}}): {{.State}}
{{- end -}}
{{- range .Skipped}}
- {{.Name}} ({{.ImageName}}): {{.State}}: {{.Error}}
{{- end -}}
{{- range .Failed}}
- {{.Name}} ({{.ImageName}}): {{.State}}: {{.Error}}
{{- end -}}
{{- end -}}
{{- end -}}
{{- else -}}
{{range .Entries -}}{{.Message}}{{"\n"}}{{- end -}}
{{- end -}}
```
It will be used to send a summary of every session if there are any containers that were updated or which failed to update.
!!! note "Skipping notifications"
Whenever the result of applying the template results in an empty string, no notifications will
be sent. This is by default used to limit the notifications to only be sent when there something noteworthy occurred.
You can replace `{{- if ( or .Updated .Failed ) -}}` with any logic you want to decide when to send the notifications.
Example using a custom report template that always sends a session report after each run:
=== "docker run"
```bash
docker run -d \
--name watchtower \
-v /var/run/docker.sock:/var/run/docker.sock \
-e WATCHTOWER_NOTIFICATION_REPORT="true" \
-e WATCHTOWER_NOTIFICATION_URL="discord://token@channel slack://watchtower@token-a/token-b/token-c" \
-e WATCHTOWER_NOTIFICATION_TEMPLATE="
{{- if .Report -}}
{{- with .Report -}}
{{len .Scanned}} Scanned, {{len .Updated}} Updated, {{len .Failed}} Failed
{{- range .Updated}}
- {{.Name}} ({{.ImageName}}): {{.CurrentImageID.ShortID}} updated to {{.LatestImageID.ShortID}}
{{- end -}}
{{- range .Fresh}}
- {{.Name}} ({{.ImageName}}): {{.State}}
{{- end -}}
{{- range .Skipped}}
- {{.Name}} ({{.ImageName}}): {{.State}}: {{.Error}}
{{- end -}}
{{- range .Failed}}
- {{.Name}} ({{.ImageName}}): {{.State}}: {{.Error}}
{{- end -}}
{{- end -}}
{{- else -}}
{{range .Entries -}}{{.Message}}{{\"\n\"}}{{- end -}}
{{- end -}}
" \
containrrr/watchtower
```
=== "docker-compose"
``` yaml
version: "3"
services:
watchtower:
image: containrrr/watchtower
volumes:
- /var/run/docker.sock:/var/run/docker.sock
env:
WATCHTOWER_NOTIFICATION_REPORT: "true"
WATCHTOWER_NOTIFICATION_URL: >
discord://token@channel
slack://watchtower@token-a/token-b/token-c
WATCHTOWER_NOTIFICATION_TEMPLATE: |
{{- if .Report -}}
{{- with .Report -}}
{{len .Scanned}} Scanned, {{len .Updated}} Updated, {{len .Failed}} Failed
{{- range .Updated}}
- {{.Name}} ({{.ImageName}}): {{.CurrentImageID.ShortID}} updated to {{.LatestImageID.ShortID}}
{{- end -}}
{{- range .Fresh}}
- {{.Name}} ({{.ImageName}}): {{.State}}
{{- end -}}
{{- range .Skipped}}
- {{.Name}} ({{.ImageName}}): {{.State}}: {{.Error}}
{{- end -}}
{{- range .Failed}}
- {{.Name}} ({{.ImageName}}): {{.State}}: {{.Error}}
{{- end -}}
{{- end -}}
{{- else -}}
{{range .Entries -}}{{.Message}}{{"\n"}}{{- end -}}
{{- end -}}
```
## Legacy notifications
For backwards compatibility, the notifications can also be configured using legacy notification options. These will automatically be converted to shoutrrr URLs when used.
The types of notifications to send are set by passing a comma-separated list of values to the `--notifications` option
(or corresponding environment variable `WATCHTOWER_NOTIFICATIONS`), which has the following valid values:
- `email` to send notifications via e-mail
- `slack` to send notifications through a Slack webhook
- `msteams` to send notifications via MSTeams webhook
- `gotify` to send notifications via Gotify
### `notify-upgrade`
If watchtower is started with `notify-upgrade` as it's first argument, it will generate a .env file with your current legacy notification options converted to shoutrrr URLs.
=== "docker run"
```bash
$ docker run -d \
--name watchtower \
-v /var/run/docker.sock:/var/run/docker.sock \
-e WATCHTOWER_NOTIFICATIONS=slack \
-e WATCHTOWER_NOTIFICATION_SLACK_HOOK_URL="https://hooks.slack.com/services/xxx/yyyyyyyyyyyyyyy" \
containrrr/watchtower \
notify-upgrade
```
=== "docker-compose.yml"
```yaml
version: "3"
services:
watchtower:
image: containrrr/watchtower
volumes:
- /var/run/docker.sock:/var/run/docker.sock
env:
WATCHTOWER_NOTIFICATIONS: slack
WATCHTOWER_NOTIFICATION_SLACK_HOOK_URL: https://hooks.slack.com/services/xxx/yyyyyyyyyyyyyyy
command: notify-upgrade
```
You can then copy this file from the container (a message with the full command to do so will be logged) and use it with your current setup:
=== "docker run"
```bash
$ docker run -d \
--name watchtower \
-v /var/run/docker.sock:/var/run/docker.sock \
--env-file watchtower-notifications.env \
containrrr/watchtower
```
=== "docker-compose.yml"
```yaml
version: "3"
services:
watchtower:
image: containrrr/watchtower
volumes:
- /var/run/docker.sock:/var/run/docker.sock
env_file:
- watchtower-notifications.env
```
### Email ### Email
To receive notifications by email, the following command-line options, or their corresponding environment variables, can be set: To receive notifications by email, the following command-line options, or their corresponding environment variables, can be set:
- `--notification-email-from` (env. `WATCHTOWER_NOTIFICATION_EMAIL_FROM`): The e-mail address from which notifications will be sent. - `--notification-email-from` (env. `WATCHTOWER_NOTIFICATION_EMAIL_FROM`): The e-mail address from which notifications will be sent.
- `--notification-email-to` (env. `WATCHTOWER_NOTIFICATION_EMAIL_TO`): The e-mail address to which notifications will be sent. - `--notification-email-to` (env. `WATCHTOWER_NOTIFICATION_EMAIL_TO`): The e-mail address to which notifications will be sent.
- `--notification-email-server` (env. `WATCHTOWER_NOTIFICATION_EMAIL_SERVER`): The SMTP server to send e-mails through. - `--notification-email-server` (env. `WATCHTOWER_NOTIFICATION_EMAIL_SERVER`): The SMTP server to send e-mails through.
- `--notification-email-server-tls-skip-verify` (env. `WATCHTOWER_NOTIFICATION_EMAIL_SERVER_TLS_SKIP_VERIFY`): Do not verify the TLS certificate of the mail server. This should be used only for testing. - `--notification-email-server-tls-skip-verify` (env. `WATCHTOWER_NOTIFICATION_EMAIL_SERVER_TLS_SKIP_VERIFY`): Do not verify the TLS certificate of the mail server. This should be used only for testing.
- `--notification-email-server-port` (env. `WATCHTOWER_NOTIFICATION_EMAIL_SERVER_PORT`): The port used to connect to the SMTP server to send e-mails through. Defaults to `25`. - `--notification-email-server-port` (env. `WATCHTOWER_NOTIFICATION_EMAIL_SERVER_PORT`): The port used to connect to the SMTP server to send e-mails through. Defaults to `25`.
- `--notification-email-server-user` (env. `WATCHTOWER_NOTIFICATION_EMAIL_SERVER_USER`): The username to authenticate with the SMTP server with. - `--notification-email-server-user` (env. `WATCHTOWER_NOTIFICATION_EMAIL_SERVER_USER`): The username to authenticate with the SMTP server with.
- `--notification-email-server-password` (env. `WATCHTOWER_NOTIFICATION_EMAIL_SERVER_PASSWORD`): The password to authenticate with the SMTP server with. Can also reference a file, in which case the contents of the file are used. - `--notification-email-server-password` (env. `WATCHTOWER_NOTIFICATION_EMAIL_SERVER_PASSWORD`): The password to authenticate with the SMTP server with. Can also reference a file, in which case the contents of the file are used.
- `--notification-email-delay` (env. `WATCHTOWER_NOTIFICATION_EMAIL_DELAY`): Delay before sending notifications expressed in seconds. - `--notification-email-delay` (env. `WATCHTOWER_NOTIFICATION_EMAIL_DELAY`): Delay before sending notifications expressed in seconds.
- `--notification-email-subjecttag` (env. `WATCHTOWER_NOTIFICATION_EMAIL_SUBJECTTAG`): Prefix to include in the subject tag. Useful when running multiple watchtowers. **NOTE:** This will affect all notification types. - `--notification-email-subjecttag` (env. `WATCHTOWER_NOTIFICATION_EMAIL_SUBJECTTAG`): Prefix to include in the subject tag. Useful when running multiple watchtowers.
Example: Example:
@ -282,6 +60,7 @@ The following example assumes, that your domain is called `your-domain.com` and
Example including an SMTP relay: Example including an SMTP relay:
```yaml ```yaml
---
version: '3.8' version: '3.8'
services: services:
watchtower: watchtower:
@ -327,6 +106,8 @@ networks:
### Slack ### Slack
If watchtower is monitoring the same Docker daemon under which the watchtower container itself is running (i.e. if you volume-mounted _/var/run/docker.sock_ into the watchtower container) then it has the ability to update itself. If a new version of the _containrrr/watchtower_ image is pushed to the Docker Hub, your watchtower will pull down the new image and restart itself automatically.
To receive notifications in Slack, add `slack` to the `--notifications` option or the `WATCHTOWER_NOTIFICATIONS` environment variable. To receive notifications in Slack, add `slack` to the `--notifications` option or the `WATCHTOWER_NOTIFICATIONS` environment variable.
Additionally, you should set the Slack webhook URL using the `--notification-slack-hook-url` option or the `WATCHTOWER_NOTIFICATION_SLACK_HOOK_URL` environment variable. This option can also reference a file, in which case the contents of the file are used. Additionally, you should set the Slack webhook URL using the `--notification-slack-hook-url` option or the `WATCHTOWER_NOTIFICATION_SLACK_HOOK_URL` environment variable. This option can also reference a file, in which case the contents of the file are used.
@ -335,7 +116,9 @@ By default, watchtower will send messages under the name `watchtower`, you can c
Other, optional, variables include: Other, optional, variables include:
- `--notification-slack-channel` (env. `WATCHTOWER_NOTIFICATION_SLACK_CHANNEL`): A string which overrides the webhook's default channel. Example: #my-custom-channel. - `--notification-slack-channel` (env. `WATCHTOWER_NOTIFICATION_SLACK_CHANNEL`): A string which overrides the webhook's default channel. Example: #my-custom-channel.
- `--notification-slack-icon-emoji` (env. `WATCHTOWER_NOTIFICATION_SLACK_ICON_EMOJI`): An [emoji code](https://www.webpagefx.com/tools/emoji-cheat-sheet/) string to use in place of the default icon.
- `--notification-slack-icon-url` (env. `WATCHTOWER_NOTIFICATION_SLACK_ICON_URL`): An icon image URL string to use in place of the default icon.
Example: Example:
@ -347,6 +130,8 @@ docker run -d \
-e WATCHTOWER_NOTIFICATION_SLACK_HOOK_URL="https://hooks.slack.com/services/xxx/yyyyyyyyyyyyyyy" \ -e WATCHTOWER_NOTIFICATION_SLACK_HOOK_URL="https://hooks.slack.com/services/xxx/yyyyyyyyyyyyyyy" \
-e WATCHTOWER_NOTIFICATION_SLACK_IDENTIFIER=watchtower-server-1 \ -e WATCHTOWER_NOTIFICATION_SLACK_IDENTIFIER=watchtower-server-1 \
-e WATCHTOWER_NOTIFICATION_SLACK_CHANNEL=#my-custom-channel \ -e WATCHTOWER_NOTIFICATION_SLACK_CHANNEL=#my-custom-channel \
-e WATCHTOWER_NOTIFICATION_SLACK_ICON_EMOJI=:whale: \
-e WATCHTOWER_NOTIFICATION_SLACK_ICON_URL=<icon url> \
containrrr/watchtower containrrr/watchtower
``` ```
@ -388,3 +173,31 @@ docker run -d \
If you want to disable TLS verification for the Gotify instance, you can use either `-e WATCHTOWER_NOTIFICATION_GOTIFY_TLS_SKIP_VERIFY=true` or `--notification-gotify-tls-skip-verify`. If you want to disable TLS verification for the Gotify instance, you can use either `-e WATCHTOWER_NOTIFICATION_GOTIFY_TLS_SKIP_VERIFY=true` or `--notification-gotify-tls-skip-verify`.
### [containrrr/shoutrrr](https://github.com/containrrr/shoutrrr)
To send notifications via shoutrrr, the following command-line options, or their corresponding environment variables, can be set:
- `--notification-url` (env. `WATCHTOWER_NOTIFICATION_URL`): The shoutrrr service URL to be used.
Go to [containrrr.github.io/shoutrrr/services/overview](https://containrrr.github.io/shoutrrr/services/overview) to learn more about the different service URLs you can use.
You can define multiple services by space separating the URLs. (See example below)
You can customize the message posted by setting a template.
- `--notification-template` (env. `WATCHTOWER_NOTIFICATION_TEMPLATE`): The template used for the message.
The template is a Go [template](https://golang.org/pkg/text/template/) and the you format a list of [log entries](https://pkg.go.dev/github.com/sirupsen/logrus?tab=doc#Entry).
The default value if not set is `{{range .}}{{.Message}}{{println}}{{end}}`. The example below uses a template that also outputs timestamp and log level.
Example:
```bash
docker run -d \
--name watchtower \
-v /var/run/docker.sock:/var/run/docker.sock \
-e WATCHTOWER_NOTIFICATIONS=shoutrrr \
-e WATCHTOWER_NOTIFICATION_URL="discord://token@channel slack://watchtower@token-a/token-b/token-c" \
-e WATCHTOWER_NOTIFICATION_TEMPLATE="{{range .}}{{.Time.Format \"2006-01-02 15:04:05\"}} ({{.Level}}): {{.Message}}{{println}}{{end}}" \
containrrr/watchtower
```

View file

@ -5,8 +5,8 @@ environment, watchtower needs to know the credentials to access the registry.
The credentials can be provided to watchtower in a configuration file called `config.json`. The credentials can be provided to watchtower in a configuration file called `config.json`.
There are two ways to generate this configuration file: There are two ways to generate this configuration file:
* The configuration file can be created manually. * The configuration file can be created manually.
* Call `docker login <REGISTRY_NAME>` and share the resulting configuration file. * Call `docker login <REGISTRY_NAME>` and share the resulting configuration file.
### Create the configuration file manually ### Create the configuration file manually
Create a new configuration file with the following syntax and a base64 encoded username and Create a new configuration file with the following syntax and a base64 encoded username and
@ -23,42 +23,20 @@ password `auth` string:
``` ```
`<REGISTRY_NAME>` needs to be replaced by the name of your private registry `<REGISTRY_NAME>` needs to be replaced by the name of your private registry
(e.g., `my-private-registry.example.org`). (e.g., `my-private-registry.example.org`)
!!! info "Using private images on Docker Hub"
To access private repositories on Docker Hub,
`<REGISTRY_NAME>` should be `https://index.docker.io/v1/`.
In this special case, the registry domain does not have to be specified
in `docker run` or `docker-compose`. Like Docker, Watchtower will use the
Docker Hub registry and its credentials when no registry domain is specified.
<sub>Watchtower will recognize credentials with `<REGISTRY_NAME>` `index.docker.io`,
but the Docker CLI will not.</sub>
!!! important "Using a private registry on a local host"
To use a private registry hosted locally, make sure to correctly specify the registry host
in both `config.json` and the `docker run` command or `docker-compose` file.
Valid hosts are `localhost[:PORT]`, `HOST:PORT`,
or any multi-part `domain.name` or IP-address with or without a port.
Examples:
* `localhost` -> `localhost/myimage`
* `127.0.0.1` -> `127.0.0.1/myimage:mytag`
* `host.domain` -> `host.domain/myorganization/myimage`
* `other-lan-host:80` -> `other-lan-host:80/imagename:latest`
The required `auth` string can be generated as follows: The required `auth` string can be generated as follows:
```bash ```bash
echo -n 'username:password' | base64 echo -n 'username:password' | base64
``` ```
!!! info "Username and Password for GCloud" > ### Username and Password for GCloud
For gcloud, we'll use `_json_key` as our username and the content of `gcloudauth.json` as the password. >
``` > For gcloud, we'll use `_json_key` as our username and the content
bash echo -n "_json_key:$(cat gcloudauth.json)" | base64 -w0 > of `gcloudauth.json` as the password.
``` >```bash
> echo -n "_json_key:$(cat gcloudauth.json)" | base64 -w0
>```
When the watchtower Docker container is started, the created configuration file When the watchtower Docker container is started, the created configuration file
(`<PATH>/config.json` in this example) needs to be passed to the container: (`<PATH>/config.json` in this example) needs to be passed to the container:
@ -67,7 +45,6 @@ docker run [...] -v <PATH>/config.json:/config.json containrrr/watchtower
``` ```
### Share the Docker configuration file ### Share the Docker configuration file
To pull an image from a private registry, `docker login` needs to be called first, to get access To pull an image from a private registry, `docker login` needs to be called first, to get access
to the registry. The provided credentials are stored in a configuration file called `<PATH_TO_HOME_DIR>/.docker/config.json`. to the registry. The provided credentials are stored in a configuration file called `<PATH_TO_HOME_DIR>/.docker/config.json`.
This configuration file can be directly used by watchtower. In this case, the creation of an This configuration file can be directly used by watchtower. In this case, the creation of an
@ -85,7 +62,7 @@ When creating the watchtower container via docker-compose, use the following lin
version: "3.4" version: "3.4"
services: services:
watchtower: watchtower:
image: containrrr/watchtower:latest image: index.docker.io/containrrr/watchtower:latest
volumes: volumes:
- /var/run/docker.sock:/var/run/docker.sock - /var/run/docker.sock:/var/run/docker.sock
- <PATH_TO_HOME_DIR>/.docker/config.json:/config.json - <PATH_TO_HOME_DIR>/.docker/config.json:/config.json
@ -109,6 +86,7 @@ services:
- /var/run/docker.sock:/var/run/docker.sock - /var/run/docker.sock:/var/run/docker.sock
``` ```
## Credential helpers ## Credential helpers
Some private Docker registries (the most prominent probably being AWS ECR) use non-standard ways of authentication. Some private Docker registries (the most prominent probably being AWS ECR) use non-standard ways of authentication.
To be able to use this together with watchtower, we need to use a credential helper. To be able to use this together with watchtower, we need to use a credential helper.
@ -119,89 +97,91 @@ helper in a separate container and mount it using volumes.
### Example ### Example
Example implementation for use with [amazon-ecr-credential-helper](https://github.com/awslabs/amazon-ecr-credential-helper): Example implementation for use with [amazon-ecr-credential-helper](https://github.com/awslabs/amazon-ecr-credential-helper):
Use the dockerfile below to build the [amazon-ecr-credential-helper](https://github.com/awslabs/amazon-ecr-credential-helper), Use the dockerfile below to build the [amazon-ecr-credential-helper](https://github.com/awslabs/amazon-ecr-credential-helper),
in a volume that may be mounted onto your watchtower container. in a volume that may be mounted onto your watchtower container.
1. Create the Dockerfile (contents below): 1. Create the Dockerfile (contents below):
```Dockerfile
FROM golang:1.20
ENV GO111MODULE off ```Dockerfile
ENV CGO_ENABLED 0 FROM golang:latest
ENV REPO github.com/awslabs/amazon-ecr-credential-helper/ecr-login/cli/docker-credential-ecr-login
RUN go get -u $REPO ENV CGO_ENABLED 0
ENV REPO github.com/awslabs/amazon-ecr-credential-helper/ecr-login/cli/docker-credential-ecr-login
RUN rm /go/bin/docker-credential-ecr-login RUN go get -u $REPO
RUN go build \ RUN rm /go/bin/docker-credential-ecr-login
-o /go/bin/docker-credential-ecr-login \
/go/src/$REPO
WORKDIR /go/bin/ RUN go build \
``` -o /go/bin/docker-credential-ecr-login \
/go/src/$REPO
WORKDIR /go/bin/
```
2. Use the following commands to build the aws-ecr-dock-cred-helper and store it's output in a volume: 2. Use the following commands to build the aws-ecr-dock-cred-helper and store it's output in a volume:
```bash
# Create a volume to store the command (once built)
docker volume create helper
# Build the container ```shell script
docker build -t aws-ecr-dock-cred-helper . # Create a volume to store the command (once built)
docker volume create helper
# Build the command and store it in the new volume in the /go/bin directory. # Build the container
docker run -d --rm --name aws-cred-helper \ docker build -t aws-ecr-dock-cred-helper .
--volume helper:/go/bin aws-ecr-dock-cred-helper
``` # Build the command and store it in the new volume in the /go/bin directory.
docker run -d --rm --name aws-cred-helper --volume helper:/go/bin aws-ecr-dock-cred-helper
```
3. Create a configuration file for docker, and store it in $HOME/.docker/config.json (replace the <AWS_ACCOUNT_ID> 3. Create a configuration file for docker, and store it in $HOME/.docker/config.json (replace the <AWS_ACCOUNT_ID>
placeholders with your AWS Account ID and <AWS_ECR_REGION> with your AWS ECR Region): placeholders with your AWS Account ID):
```json
{ ```json
"credsStore" : "ecr-login", {
"HttpHeaders" : { "credsStore" : "ecr-login",
"User-Agent" : "Docker-Client/19.03.1 (XXXXXX)" "HttpHeaders" : {
}, "User-Agent" : "Docker-Client/19.03.1 (XXXXXX)"
"auths" : { },
"<AWS_ACCOUNT_ID>.dkr.ecr.<AWS_ECR_REGION>.amazonaws.com" : {} "auths" : {
}, "<AWS_ACCOUNT_ID>.dkr.ecr.us-west-1.amazonaws.com" : {}
"credHelpers": { },
"<AWS_ACCOUNT_ID>.dkr.ecr.<AWS_ECR_REGION>.amazonaws.com" : "ecr-login" "credHelpers": {
} "<AWS_ACCOUNT_ID>.dkr.ecr.us-west-1.amazonaws.com" : "ecr-login"
} }
``` }
```
4. Create a docker-compose file (as an example) to help launch the container: 4. Create a docker-compose file (as an example) to help launch the container:
```yaml
version: "3.4" and the docker-compose definition:
services: ```yaml
# Check for new images and restart things if a new image exists version: "3.4"
# for any of our containers. services:
watchtower: # Check for new images and restart things if a new image exists
image: containrrr/watchtower:latest # for any of our containers.
volumes: watchtower:
- /var/run/docker.sock:/var/run/docker.sock image: containrrr/watchtower:latest
- .docker/config.json:/config.json
- helper:/go/bin
environment:
- HOME=/
- PATH=$PATH:/go/bin
- AWS_REGION=us-west-1
volumes: volumes:
helper: - /var/run/docker.sock:/var/run/docker.sock
external: true - .docker/config.json:/config.json
``` - helper:/go/bin
environment:
- HOME=/
- PATH=$PATH:/go/bin
- AWS_REGION=us-west-1
volumes:
helper:
external: true
```
A few additional notes: A few additional notes:
1. With docker-compose the volume (helper, in this case) MUST be set to `external: true`, otherwise docker-compose 1. With docker-compose the volume (helper, in this case) MUST be set to `external: true`, otherwise docker-compose
will preface it with the directory name. will preface it with the directory name.
2. Note that "credsStore" : "ecr-login" is needed - and in theory if you have that you can remove the 2. Note that "credsStore" : "ecr-login" is needed - and in theory if you have that you can remove the
credHelpers section credHelpers section
3. I have this running on an EC2 instance that has credentials assigned to it - so no keys are needed; however, 3. I have this running on an EC2 instance that has credentials assigned to it - so no keys are needed; however,
you may need to include the `AWS_ACCESS_KEY_ID` and `AWS_SECRET_ACCESS_KEY` environment variables as well. you may need to include the `AWS_ACCESS_KEY_ID` and `AWS_SECRET_ACCESS_KEY` environment variables as well.
4. An alternative to adding the various variables is to create a ~/.aws/config and ~/.aws/credentials files and 4. An alternative to adding the various variables is to create a ~/.aws/config and ~/.aws/credentials files and
place the settings there, then mount the ~/.aws directory to / in the container. place the settings there, then mount the ~/.aws directory to / in the container.

View file

@ -1,11 +1,10 @@
By default, Watchtower will clean up other instances and won't allow multiple instances running on the same Docker host or swarm. It is possible to override this behavior by defining a [scope](https://containrrr.github.io/watchtower/arguments/#filter_by_scope) to each running instance. By default, Watchtower will clean up other instances and won't allow multiple instances running on the same Docker host or swarm. It is possible to override this behavior by defining a [scope](https://containrrr.github.io/watchtower/arguments/#filter_by_scope) to each running instance.
!!! note Notice that:
- Multiple instances can't run with the same scope; - Multiple instances can't run with the same scope;
- An instance without a scope will clean up other running instances, even if they have a defined scope; - An instance without a scope will clean up other running instances, even if they have a defined scope;
- Supplying `none` as the scope will treat `com.centurylinklabs.watchtower.scope=none`, `com.centurylinklabs.watchtower.scope=` and the lack of a `com.centurylinklabs.watchtower.scope` label as the scope `none`. This effectly enables you to run both scoped and unscoped watchtower instances on the same machine.
To define an instance monitoring scope, use the `--scope` argument or the `WATCHTOWER_SCOPE` environment variable on startup and set the `com.centurylinklabs.watchtower.scope` label with the same value for the containers you want to include in this instance's scope (including the instance itself). To define an instance monitoring scope, use the `--scope` argument or the `WATCHTOWER_SCOPE` environment variable on startup and set the _com.centurylinklabs.watchtower.scope_ label with the same value for the containers you want to include in this instance's scope (including the instance itself).
For example, in a Docker Compose config file: For example, in a Docker Compose config file:
@ -13,29 +12,16 @@ For example, in a Docker Compose config file:
version: '3' version: '3'
services: services:
app-with-scope: app-monitored-by-watchtower:
image: myapps/monitored-by-watchtower image: myapps/monitored-by-watchtower
labels: [ "com.centurylinklabs.watchtower.scope=myscope" ] labels:
- "com.centurylinklabs.watchtower.scope=myscope"
scoped-watchtower: watchtower:
image: containrrr/watchtower image: containrrr/watchtower
volumes: [ "/var/run/docker.sock:/var/run/docker.sock" ] volumes:
- /var/run/docker.sock:/var/run/docker.sock
command: --interval 30 --scope myscope command: --interval 30 --scope myscope
labels: [ "com.centurylinklabs.watchtower.scope=myscope" ] labels:
- "com.centurylinklabs.watchtower.scope=myscope"
unscoped-app-a:
image: myapps/app-a
unscoped-app-b:
image: myapps/app-b
labels: [ "com.centurylinklabs.watchtower.scope=none" ]
unscoped-app-c:
image: myapps/app-b
labels: [ "com.centurylinklabs.watchtower.scope=" ]
unscoped-watchtower:
image: containrrr/watchtower
volumes: [ "/var/run/docker.sock:/var/run/docker.sock" ]
command: --interval 30 --scope none
``` ```

View file

@ -1,87 +1,16 @@
[data-md-color-scheme="containrrr"] { [data-md-color-scheme="containrrr"] {
/* Primary and accent */ --md-primary-fg-color: #406170;
--md-primary-fg-color: #406170; --md-primary-fg-color--light:#acbfc7;
--md-primary-fg-color--light:#acbfc7; --md-primary-fg-color--dark: #003343;
--md-primary-fg-color--dark: #003343; --md-accent-fg-color: #003343;
--md-accent-fg-color: #003343; --md-accent-fg-color--transparent: #00334310;
--md-accent-fg-color--transparent: #00334310;
/* Typeset overrides */
--md-typeset-a-color: var(--md-primary-fg-color);
}
[data-md-color-scheme="containrrr-dark"] {
--md-hue: 199;
/* Primary and accent */
--md-primary-fg-color: hsl(199deg 27% 35% / 100%);
--md-primary-fg-color--link: hsl(199deg 45% 65% / 100%);
--md-primary-fg-color--light: hsl(198deg 19% 73% / 100%);
--md-primary-fg-color--dark: hsl(194deg 100% 13% / 100%);
--md-accent-fg-color: hsl(194deg 45% 50% / 100%);
--md-accent-fg-color--transparent: hsl(194deg 45% 50% / 6.3%);
/* Default */
--md-default-fg-color: hsl(var(--md-hue) 75% 95% / 100%);
--md-default-fg-color--light: hsl(var(--md-hue) 75% 90% / 62%);
--md-default-fg-color--lighter: hsl(var(--md-hue) 75% 90% / 32%);
--md-default-fg-color--lightest: hsl(var(--md-hue) 75% 90% / 12%);
--md-default-bg-color: hsl(var(--md-hue) 15% 21% / 100%);
--md-default-bg-color--light: hsl(var(--md-hue) 15% 21% / 54%);
--md-default-bg-color--lighter: hsl(var(--md-hue) 15% 21% / 26%);
--md-default-bg-color--lightest: hsl(var(--md-hue) 15% 21% / 7%);
/* Code */
--md-code-fg-color: hsl(var(--md-hue) 18% 86% / 100%);
--md-code-bg-color: hsl(var(--md-hue) 15% 15% / 100%);
--md-code-hl-color: hsl(218deg 100% 63% / 15%);
--md-code-hl-number-color: hsl(346deg 74% 63% / 100%);
--md-code-hl-special-color: hsl(320deg 83% 66% / 100%);
--md-code-hl-function-color: hsl(271deg 57% 65% / 100%);
--md-code-hl-constant-color: hsl(230deg 62% 70% / 100%);
--md-code-hl-keyword-color: hsl(199deg 33% 64% / 100%);
--md-code-hl-string-color: hsl( 50deg 34% 74% / 100%);
--md-code-hl-name-color: var(--md-code-fg-color);
--md-code-hl-operator-color: var(--md-default-fg-color--light);
--md-code-hl-punctuation-color: var(--md-default-fg-color--light);
--md-code-hl-comment-color: var(--md-default-fg-color--light);
--md-code-hl-generic-color: var(--md-default-fg-color--light);
--md-code-hl-variable-color: hsl(241deg 22% 60% / 100%);
/* Typeset */
--md-typeset-color: var(--md-default-fg-color);
--md-typeset-a-color: var(--md-primary-fg-color--link);
--md-typeset-mark-color: hsl(218deg 100% 63% / 30%);
--md-typeset-kbd-color: hsl(var(--md-hue) 15% 94% / 12%);
--md-typeset-kbd-accent-color: hsl(var(--md-hue) 15% 94% / 20%);
--md-typeset-kbd-border-color: hsl(var(--md-hue) 15% 14% / 100%);
--md-typeset-table-color: hsl(var(--md-hue) 75% 95% / 12%);
/* Admonition */
--md-admonition-fg-color: var(--md-default-fg-color);
--md-admonition-bg-color: var(--md-default-bg-color);
/* Footer */
--md-footer-bg-color: hsl(var(--md-hue) 15% 12% / 87%);
--md-footer-bg-color--dark: hsl(var(--md-hue) 15% 10% / 100%);
/* Shadows */
--md-shadow-z1:
0 0.2rem 0.50rem rgba(0 0 0 20%),
0 0 0.05rem rgba(0 0 0 10%);
--md-shadow-z2:
0 0.2rem 0.50rem rgba(0 0 0 30%),
0 0 0.05rem rgba(0 0 0 25%);
--md-shadow-z3:
0 0.2rem 0.50rem rgba(0 0 0 40%),
0 0 0.05rem rgba(0 0 0 35%);
} }
.md-header-nav__button.md-logo { .md-header-nav__button.md-logo {
padding: 0; padding: 0;
} }
.md-header-nav__button.md-logo img { .md-header-nav__button.md-logo img {
width: 1.6rem; width: 1.6rem;
height: 1.6rem; height: 1.6rem;
} }

View file

@ -1,251 +0,0 @@
<style>
#tplprev {
margin: 0;
display: flex;
flex-direction: column;
row-gap: 1rem;
box-sizing: border-box;
position: relative;
margin-right: -13.3rem
}
#tplprev textarea {
box-decoration-break: slice;
overflow: auto;
padding: 0.77em 1.18em;
scrollbar-color: var(--md-default-fg-color--lighter) transparent;
scrollbar-width: thin;
touch-action: auto;
word-break: normal;
height: 420px;
flex: 1;
}
#tplprev .controls {
display: flex;
flex-direction: row;
column-gap: 0.5rem
}
#tplprev textarea, #tplprev input {
background-color: var(--md-code-bg-color);
border-width: 0;
border-radius: 0.1rem;
color: var(--md-code-fg-color);
font-feature-settings: "kern";
font-family: var(--md-code-font-family);
}
.numfield {
font-size: .7rem;
display: flex;
flex-direction: column;
justify-content: space-between;
}
#tplprev button {
border-radius: 0.1rem;
color: var(--md-primary-bg-color);
background-color: var(--md-primary-fg-color);
flex:1;
min-width: 12ch;
padding: 0.5rem
}
#tplprev button:hover {
background-color: var(--md-accent-fg-color);
}
#tplprev input[type="number"] { width: 5ch; flex: 1; font-size: 1rem; }
#tplprev fieldset {
margin-top: -0.5rem;
display: flex;
flex: 1;
column-gap: 0.5rem;
}
#tplprev .template-wrapper {
display: flex;
flex:1;
column-gap: 1rem;
}
#tplprev .result-wrapper {
flex: 1;
display: flex
}
#result {
font-size: 0.7rem;
background-color: var(--md-code-bg-color);
scrollbar-color: var(--md-default-fg-color--lighter) transparent;
scrollbar-width: thin;
touch-action: auto;
overflow: auto;
padding: 0.77em 1.18em;
margin:0;
height: 540px;
flex:1;
width:100%
}
#result b {color: var(--md-code-hl-special-color)}
#result i {color: var(--md-code-hl-keyword-color)}
#tplprev .loading {
position: absolute;
inset: 0;
display: flex;
padding: 1rem;
box-sizing: border-box;
background: var(--md-code-bg-color);
margin-top: 0
}
</style>
<script src="../assets/wasm_exec.js"></script>
<script>
let wasmLoaded = false;
const updatePreview = () => {
if (!wasmLoaded) return;
const form = document.querySelector('#tplprev');
const input = form.template.value;
console.log('Input: %o', input);
const arrFromCount = (key) => Array.from(Array(form[key]?.valueAsNumber ?? 0), () => key);
const states = form.report.value === "yes" ? [
...arrFromCount("skipped"),
...arrFromCount("scanned"),
...arrFromCount("updated"),
...arrFromCount("failed" ),
...arrFromCount("fresh" ),
...arrFromCount("stale" ),
] : [];
console.log("States: %o", states);
const levels = form.log.value === "yes" ? [
...arrFromCount("error"),
...arrFromCount("warning"),
...arrFromCount("info"),
...arrFromCount("debug"),
] : [];
console.log("Levels: %o", levels);
const output = WATCHTOWER.tplprev(input, states, levels);
console.log('Output: \n%o', output);
if (output.startsWith('Error: ')) {
document.querySelector('#result').innerHTML = `<b>Error</b>: ${output.substring(7)}`;
} else if (output.length) {
document.querySelector('#result').innerText = output;
} else {
document.querySelector('#result').innerHTML = '<i>empty (would not be sent as a notification)</i>';
}
}
const formSubmitted = (e) => {
//e.preventDefault();
//updatePreview();
}
let debounce;
const inputUpdated = () => {
if(debounce) clearTimeout(debounce);
debounce = setTimeout(() => updatePreview(), 400);
}
const formChanged = (e) => {
console.log('form changed: %o', e);
const targetToggle = e.target.dataset['toggle'];
if (targetToggle) {
e.target.form[targetToggle].value = e.target.checked ? "yes" : "no";
}
updatePreview()
}
const go = new Go();
WebAssembly.instantiateStreaming(fetch("../assets/tplprev.wasm"), go.importObject).then((result) => {
go.run(result.instance);
document.querySelector('#tplprev .loading').style.display = "none";
wasmLoaded = true;
updatePreview();
});
</script>
<form id="tplprev" onchange="formChanged(event)" onsubmit="formSubmitted(event)">
<pre class="loading">loading wasm...</pre>
<div class="template-wrapper">
<textarea name="template" type="text" onkeyup="inputUpdated()">{{- with .Report -}}
{{- if ( or .Updated .Failed ) -}}
{{len .Scanned}} Scanned, {{len .Updated}} Updated, {{len .Failed}} Failed
{{- range .Updated}}
- {{.Name}} ({{.ImageName}}): {{.CurrentImageID.ShortID}} updated to {{.LatestImageID.ShortID}}
{{- end -}}
{{- range .Fresh}}
- {{.Name}} ({{.ImageName}}): {{.State}}
{{- end -}}
{{- range .Skipped}}
- {{.Name}} ({{.ImageName}}): {{.State}}: {{.Error}}
{{- end -}}
{{- range .Failed}}
- {{.Name}} ({{.ImageName}}): {{.State}}: {{.Error}}
{{- end -}}
{{- end -}}
{{- end -}}
{{- if (and .Entries .Report) }}
Logs:
{{ end -}}
{{range .Entries -}}{{.Time.Format "2006-01-02T15:04:05Z07:00"}} [{{.Level}}] {{.Message}}{{"\n"}}{{- end -}}</textarea>
</div>
<div class="controls">
<fieldset>
<input type="hidden" name="report" value="yes" />
<legend><label><input type="checkbox" data-toggle="report" checked /> Container report</label></legend>
<label class="numfield">
Skipped:
<input type="number" name="skipped" value="3" />
</label>
<label class="numfield">
Scanned:
<input type="number" name="scanned" value="3" />
</label>
<label class="numfield">
Updated:
<input type="number" name="updated" value="3" />
</label>
<label class="numfield">
Failed:
<input type="number" name="failed" value="3" />
</label>
<label class="numfield">
Fresh:
<input type="number" name="fresh" value="3" />
</label>
<label class="numfield">
Stale:
<input type="number" name="stale" value="3" />
</label>
</fieldset>
<fieldset>
<input type="hidden" name="log" value="yes" />
<legend><label><input type="checkbox" data-toggle="log" checked /> Log entries</label></legend>
<label class="numfield">
Error:
<input type="number" name="error" value="1" />
</label>
<label class="numfield">
Warning:
<input type="number" name="warning" value="2" />
</label>
<label class="numfield">
Info:
<input type="number" name="info" value="3" />
</label>
<label class="numfield">
Debug:
<input type="number" name="debug" value="4" />
</label>
</fieldset>
<button type="submit">Update preview</button>
</div>
<div style="result-wrapper">
<pre id="result"></pre>
</div>
</form>
<script>
const loadQueryVals = () => {
const form = document.querySelector('#tplprev');
const params = new URLSearchParams(location.search);
for(const [key, value] of params){
form[key].value = value;
const toggleInput = form.querySelector(`[data-toggle="${key}"]`);
if (toggleInput) {
toggleInput.checked = value === "yes";
}
}
}
if (document.readyState === "loading") {
document.addEventListener("DOMContentLoaded", loadQueryVals());
} else {
loadQueryVals();
}
</script>

View file

@ -1,6 +0,0 @@
## Updating Watchtower
If watchtower is monitoring the same Docker daemon under which the watchtower container itself is running (i.e. if you
volume-mounted `/var/run/docker.sock` into the watchtower container) then it has the ability to update itself.
If a new version of the `containrrr/watchtower` image is pushed to the Docker Hub, your watchtower will pull down the
new image and restart itself automatically.

View file

@ -27,35 +27,25 @@ docker run -d \
Also check out [this Stack Overflow answer](https://stackoverflow.com/a/30494145/7872793) for more options on how to pass environment variables. Also check out [this Stack Overflow answer](https://stackoverflow.com/a/30494145/7872793) for more options on how to pass environment variables.
Alternatively if you 2FA authentication setup on Docker Hub then passing username and password will be insufficient. Instead you can run `docker login` to store your credentials in `$HOME/.docker/config.json` and then mount this config file to make it available to the Watchtower container: Mounting the host's docker config file:
```bash ```bash
docker run -d \ docker run -d \
--name watchtower \ --name watchtower \
-v $HOME/.docker/config.json:/config.json \ -v /home/<user>/.docker/config.json:/config.json \
-v /var/run/docker.sock:/var/run/docker.sock \ -v /var/run/docker.sock:/var/run/docker.sock \
containrrr/watchtower container_to_watch --debug containrrr/watchtower container_to_watch --debug
``` ```
!!! note "Changes to config.json while running" > NOTE: if you mount `config.json` in the manner above, changes from the host system will (generally) not be propagated to the running container. Mounting files into the Docker daemon uses bind mounts, which are based on inodes. Most applications (including `docker login` and `vim`) will not directly edit the file, but instead make a copy and replace the original file, which results in a new inode which in turn *breaks* the bind mount. **As a workaround**, you can create a symlink to your `config.json` file and then mount the symlink in the container. The symlinked file will always have the same inode, which keeps the bind mount intact and will ensure changes to the original file are propagated to the running container (regardless of the inode of the source file!).
If you mount `config.json` in the manner above, changes from the host system will (generally) not be propagated to the
running container. Mounting files into the Docker daemon uses bind mounts, which are based on inodes. Most
applications (including `docker login` and `vim`) will not directly edit the file, but instead make a copy and replace
the original file, which results in a new inode which in turn _breaks_ the bind mount.
**As a workaround**, you can create a symlink to your `config.json` file and then mount the symlink in the container.
The symlinked file will always have the same inode, which keeps the bind mount intact and will ensure changes
to the original file are propagated to the running container (regardless of the inode of the source file!).
If you mount the config file as described above, be sure to also prepend the URL for the registry when starting up your If you mount the config file as described above, be sure to also prepend the URL for the registry when starting up your watched image (you can omit the https://). Here is a complete docker-compose.yml file that starts up a docker container from a private repo at Docker Hub and monitors it with watchtower. Note the command argument changing the interval to 30s rather than the default 24 hours.
watched image (you can omit the https://). Here is a complete docker-compose.yml file that starts up a docker container
from a private repo on the GitHub Registry and monitors it with watchtower. Note the command argument changing the interval
to 30s rather than the default 24 hours.
```yaml ```yaml
version: "3" version: "3"
services: services:
cavo: cavo:
image: ghcr.io/<org>/<image>:<tag> image: index.docker.io/<org>/<image>:<tag>
ports: ports:
- "443:3443" - "443:3443"
- "80:3080" - "80:3080"

124
go.mod
View file

@ -1,74 +1,64 @@
module github.com/containrrr/watchtower module github.com/containrrr/watchtower
go 1.20 go 1.12
replace golang.org/x/sys => golang.org/x/sys v0.0.0-20190813064441-fde4db37ae7a
require ( require (
github.com/containrrr/shoutrrr v0.8.0 github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78 // indirect
github.com/distribution/reference v0.5.0 github.com/Microsoft/go-winio v0.4.12 // indirect
github.com/docker/cli v24.0.7+incompatible github.com/Shopify/logrus-bugsnag v0.0.0-20171204204709-577dee27f20d // indirect
github.com/docker/docker v24.0.7+incompatible github.com/agl/ed25519 v0.0.0-20170116200512-5312a6153412 // indirect
github.com/docker/go-connections v0.4.0 github.com/bitly/go-hostpool v0.0.0-20171023180738-a3a6125de932 // indirect
github.com/onsi/ginkgo v1.16.5 github.com/bitly/go-simplejson v0.5.0 // indirect
github.com/onsi/gomega v1.30.0 github.com/bmizerany/assert v0.0.0-20160611221934-b7ed37b82869 // indirect
github.com/prometheus/client_golang v1.18.0 github.com/bugsnag/bugsnag-go v1.5.3 // indirect
github.com/robfig/cron v1.2.0 github.com/bugsnag/panicwrap v1.2.0 // indirect
github.com/sirupsen/logrus v1.9.3 github.com/cenkalti/backoff v2.2.1+incompatible // indirect
github.com/spf13/cobra v1.8.0 github.com/cloudflare/cfssl v0.0.0-20190911221928-1a911ca1b1d6 // indirect
github.com/spf13/pflag v1.0.5 github.com/containerd/continuity v0.0.0-20181203112020-004b46473808 // indirect
github.com/spf13/viper v1.18.2 github.com/containrrr/shoutrrr v0.4.1
github.com/stretchr/testify v1.8.4 github.com/docker/cli v0.0.0-20190327152802-57b27434ea29
golang.org/x/net v0.19.0 github.com/docker/distribution v2.7.1+incompatible
) github.com/docker/docker v0.0.0-20190404075923-dbe4a30928d4
require github.com/matttproud/golang_protobuf_extensions/v2 v2.0.0 // indirect
require (
github.com/Azure/go-ansiterm v0.0.0-20210617225240-d185dfc1b5a1 // indirect
github.com/Microsoft/go-winio v0.4.17 // indirect
github.com/beorn7/perks v1.0.1 // indirect
github.com/cespare/xxhash/v2 v2.2.0 // indirect
github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
github.com/docker/distribution v2.8.3+incompatible // indirect
github.com/docker/docker-credential-helpers v0.6.1 // indirect github.com/docker/docker-credential-helpers v0.6.1 // indirect
github.com/docker/go-units v0.4.0 // indirect github.com/docker/go v1.5.1-1 // indirect
github.com/fatih/color v1.15.0 // indirect github.com/docker/go-connections v0.4.0 // indirect
github.com/fsnotify/fsnotify v1.7.0 // indirect github.com/docker/go-metrics v0.0.0-20181218153428-b84716841b82 // indirect
github.com/gogo/protobuf v1.3.2 // indirect github.com/docker/go-units v0.3.3 // indirect
github.com/golang/protobuf v1.5.3 // indirect github.com/docker/libtrust v0.0.0-20160708172513-aabc10ec26b7 // indirect
github.com/google/go-cmp v0.6.0 // indirect github.com/gofrs/uuid v3.2.0+incompatible // indirect
github.com/hashicorp/hcl v1.0.0 // indirect github.com/google/certificate-transparency-go v1.0.21 // indirect
github.com/inconshreveable/mousetrap v1.1.0 // indirect github.com/gorilla/mux v1.7.0 // indirect
github.com/magiconair/properties v1.8.7 // indirect github.com/hailocab/go-hostpool v0.0.0-20160125115350-e80d13ce29ed // indirect
github.com/mattn/go-colorable v0.1.13 // indirect github.com/hashicorp/go-version v1.1.0 // indirect
github.com/mattn/go-isatty v0.0.17 // indirect github.com/jinzhu/gorm v1.9.11 // indirect
github.com/mitchellh/mapstructure v1.5.0 // indirect github.com/johntdyer/slack-go v0.0.0-20180213144715-95fac1160b22 // indirect
github.com/moby/term v0.0.0-20210619224110-3f7ff695adc6 // indirect github.com/johntdyer/slackrus v0.0.0-20180518184837-f7aae3243a07
github.com/kardianos/osext v0.0.0-20190222173326-2bc1f35cddc0 // indirect
github.com/lib/pq v1.2.0 // indirect
github.com/miekg/pkcs11 v0.0.0-20190401114359-553cfdd26aaa // indirect
github.com/morikuni/aec v0.0.0-20170113033406-39771216ff4c // indirect github.com/morikuni/aec v0.0.0-20170113033406-39771216ff4c // indirect
github.com/nxadm/tail v1.4.8 // indirect github.com/onsi/ginkgo v1.14.2
github.com/opencontainers/go-digest v1.0.0 // indirect github.com/onsi/gomega v1.10.1
github.com/opencontainers/image-spec v1.0.2 // indirect github.com/opencontainers/go-digest v1.0.0-rc1 // indirect
github.com/pelletier/go-toml/v2 v2.1.0 // indirect github.com/opencontainers/image-spec v1.0.1 // indirect
github.com/pkg/errors v0.9.1 // indirect github.com/opencontainers/runc v0.1.1 // indirect
github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect github.com/prometheus/client_golang v0.9.3
github.com/prometheus/client_model v0.5.0 // indirect github.com/robfig/cron v0.0.0-20180505203441-b41be1df6967
github.com/prometheus/common v0.45.0 // indirect github.com/sirupsen/logrus v1.4.2
github.com/prometheus/procfs v0.12.0 // indirect github.com/spf13/cobra v0.0.7
github.com/sagikazarmark/locafero v0.4.0 // indirect github.com/spf13/pflag v1.0.5
github.com/sagikazarmark/slog-shim v0.1.0 // indirect github.com/spf13/viper v1.6.3
github.com/sourcegraph/conc v0.3.0 // indirect github.com/stretchr/testify v1.4.0
github.com/spf13/afero v1.11.0 // indirect github.com/theupdateframework/notary v0.6.1 // indirect
github.com/spf13/cast v1.6.0 // indirect github.com/zmap/zlint v1.0.2 // indirect
github.com/stretchr/objx v0.5.0 // indirect golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9 // indirect
github.com/subosito/gotenv v1.6.0 // indirect golang.org/x/net v0.0.0-20200520004742-59133d7f0dd7
go.uber.org/atomic v1.9.0 // indirect golang.org/x/text v0.3.4 // indirect
go.uber.org/multierr v1.9.0 // indirect gopkg.in/dancannon/gorethink.v3 v3.0.5 // indirect
golang.org/x/exp v0.0.0-20230905200255-921286631fa9 // indirect gopkg.in/fatih/pool.v2 v2.0.0 // indirect
golang.org/x/sys v0.15.0 // indirect gopkg.in/gorethink/gorethink.v3 v3.0.5 // indirect
golang.org/x/text v0.14.0 gopkg.in/yaml.v2 v2.4.0 // indirect
golang.org/x/time v0.5.0 // indirect gotest.tools v2.2.0+incompatible // indirect
google.golang.org/protobuf v1.31.0 // indirect
gopkg.in/ini.v1 v1.67.0 // indirect
gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 // indirect
gopkg.in/yaml.v3 v3.0.1 // indirect
gotest.tools/v3 v3.0.3 // indirect
) )

643
go.sum
View file

@ -1,240 +1,533 @@
github.com/Azure/go-ansiterm v0.0.0-20210617225240-d185dfc1b5a1 h1:UQHMgLO+TxOElx5B5HZ4hJQsoJ/PvUvKRhJHDQXO8P8= cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
github.com/Azure/go-ansiterm v0.0.0-20210617225240-d185dfc1b5a1/go.mod h1:xomTg63KZ2rFqZQzSB4Vz2SUXa1BpHTVz9L5PTmPC4E= cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
github.com/Microsoft/go-winio v0.4.17 h1:iT12IBVClFevaf8PuVyi3UmZOVh4OqnaLxDTW2O6j3w= cloud.google.com/go v0.37.4 h1:glPeL3BQJsbF6aIIYfZizMwc5LTYz250bDMjttbBGAU=
github.com/Microsoft/go-winio v0.4.17/go.mod h1:JPGBdM1cNvN/6ISo+n8V5iA4v8pBzdOpzfwIujj1a84= cloud.google.com/go v0.37.4/go.mod h1:NHPJ89PdicEuT9hdPXMROBD91xc5uRDxsMtSB16k7hw=
github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM= github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78 h1:w+iIsaOQNcT7OZ575w+acHgRric5iCyQh+xv+KJ4HB8=
github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw= github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78/go.mod h1:LmzpDX56iTiv29bbRTIsUNlaFfuhWRQBWjQdVyAevI8=
github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44= github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
github.com/cespare/xxhash/v2 v2.2.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs= github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
github.com/containrrr/shoutrrr v0.8.0 h1:mfG2ATzIS7NR2Ec6XL+xyoHzN97H8WPjir8aYzJUSec= github.com/Microsoft/go-winio v0.4.12 h1:xAfWHN1IrQ0NJ9TBC0KBZoqLjzDTr1ML+4MywiUOryc=
github.com/containrrr/shoutrrr v0.8.0/go.mod h1:ioyQAyu1LJY6sILuNyKaQaw+9Ttik5QePU8atnAdO2o= github.com/Microsoft/go-winio v0.4.12/go.mod h1:VhR8bwka0BXejwEJY73c50VrPtXAaKcyvVC4A4RozmA=
github.com/cpuguy83/go-md2man/v2 v2.0.3/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o= github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
github.com/creack/pty v1.1.11 h1:07n33Z8lZxZ2qwegKbObQohDhXDQxiMMz1NOUGYlesw= github.com/Shopify/logrus-bugsnag v0.0.0-20171204204709-577dee27f20d h1:UrqY+r/OJnIp5u0s1SbQ8dVfLCZJsnvazdBP5hS4iRs=
github.com/creack/pty v1.1.11/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E= github.com/Shopify/logrus-bugsnag v0.0.0-20171204204709-577dee27f20d/go.mod h1:HI8ITrYtUY+O+ZhtlqUnD8+KwNPOyugEhfP9fdUIaEQ=
github.com/Shopify/sarama v1.19.0/go.mod h1:FVkBWblsNy7DGZRfXLU0O9RCGt5g3g3yEuWXgklEdEo=
github.com/Shopify/toxiproxy v2.1.4+incompatible/go.mod h1:OXgGpZ6Cli1/URJOF1DMxUHB2q5Ap20/P/eIdh4G0pI=
github.com/agl/ed25519 v0.0.0-20170116200512-5312a6153412 h1:w1UutsfOrms1J05zt7ISrnJIXKzwaspym5BTKGx93EI=
github.com/agl/ed25519 v0.0.0-20170116200512-5312a6153412/go.mod h1:WPjqKcmVOxf0XSf3YxCJs6N6AOSrOx3obionmG7T0y0=
github.com/agnivade/wasmbrowsertest v0.3.1/go.mod h1:zQt6ZTdl338xxRaMW395qccVE2eQm0SjC/SDz0mPWQI=
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golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 h1:go1bK/D/BFZV2I8cIQd1NKEZ+0owSTG1fDTci4IqFcE=
golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
google.golang.org/api v0.3.1/go.mod h1:6wY9I6uQWHQ8EM57III9mq/AjF+i8G65rmVagqKMtkk=
google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
google.golang.org/appengine v1.4.0 h1:/wp5JvzpHIxhs/dumFmF7BXTf3Z+dd4uXta4kVyO508=
google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
google.golang.org/genproto v0.0.0-20190307195333-5fe7a883aa19/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
google.golang.org/genproto v0.0.0-20190404172233-64821d5d2107 h1:xtNn7qFlagY2mQNFHMSRPjT2RkOV4OXM7P5TVy9xATo=
google.golang.org/genproto v0.0.0-20190404172233-64821d5d2107/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
google.golang.org/grpc v1.17.0/go.mod h1:6QZJwpn2B+Zp71q/5VxRsJ6NXXVCE5NRUHRo+f3cWCs=
google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
google.golang.org/grpc v1.21.0 h1:G+97AoqBnmZIT91cLG/EkCoK9NSelj64P8bOHHNmGn0=
google.golang.org/grpc v1.21.0/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8= google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0= google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM= google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miEFZTKqfCUM6K7xSMQL9OKL/b6hQv+e19PK+JZNE= google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miEFZTKqfCUM6K7xSMQL9OKL/b6hQv+e19PK+JZNE=
google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo= google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
google.golang.org/protobuf v1.23.0 h1:4MY060fB1DLGMB/7MBTLnwQUY6+F09GEiz6SsrNqyzM=
google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU= google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw= gopkg.in/airbrake/gobrake.v2 v2.0.9/go.mod h1:/h5ZAUhDkGaJfjzjKLSjv6zCL6O0LLBxU4K+aSYdM/U=
google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc= gopkg.in/alecthomas/kingpin.v2 v2.2.6 h1:jMFz6MfLP0/4fUyZle81rXUoxOBFi19VUFKVDOQfozc=
google.golang.org/protobuf v1.31.0 h1:g0LDEJHgrBl9N9r17Ru3sqWhkIx2NB67okBHPwC7hs8= gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
google.golang.org/protobuf v1.31.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk= gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/dancannon/gorethink.v3 v3.0.5 h1:/g7PWP7zUS6vSNmHSDbjCHQh1Rqn8Jy6zSMQxAsBSMQ=
gopkg.in/dancannon/gorethink.v3 v3.0.5/go.mod h1:GXsi1e3N2OcKhcP6nsYABTiUejbWMFO4GY5a4pEaeEc=
gopkg.in/fatih/pool.v2 v2.0.0 h1:xIFeWtxifuQJGk/IEPKsTduEKcKvPmhoiVDGpC40nKg=
gopkg.in/fatih/pool.v2 v2.0.0/go.mod h1:8xVGeu1/2jr2wm5V9SPuMht2H5AEmf5aFMGSQixtjTY=
gopkg.in/fsnotify.v1 v1.4.7 h1:xOHLXZwVvI9hhs+cLKq5+I5onOuwQLhQwiu63xxlHs4=
gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys= gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
gopkg.in/ini.v1 v1.67.0 h1:Dgnx+6+nfE+IfzjUEISNeydPJh9AXNNsWbGP9KzCsOA= gopkg.in/gemnasium/logrus-airbrake-hook.v2 v2.1.2/go.mod h1:Xk6kEKp8OKb+X14hQBKWaSkCsqBpgog8nAV2xsGOxlo=
gopkg.in/ini.v1 v1.67.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k= gopkg.in/gorethink/gorethink.v3 v3.0.5 h1:e2Uc/Xe+hpcVQFsj6MuHlYog3r0JYpnTzwDj/y2O4MU=
gopkg.in/gorethink/gorethink.v3 v3.0.5/go.mod h1:+3yIIHJUGMBK+wyPH+iN5TP+88ikFDfZdqTlK3Y9q8I=
gopkg.in/ini.v1 v1.51.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
gopkg.in/ini.v1 v1.55.0 h1:E8yzL5unfpW3M6fz/eB7Cb5MQAYSZ7GKo4Qth+N2sgQ=
gopkg.in/ini.v1 v1.55.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo=
gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ= gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw= gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74=
gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA= gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= gosrc.io/xmpp v0.5.1 h1:Rgrm5s2rt+npGggJH3HakQxQXR8ZZz3+QRzakRQqaq4=
gotest.tools/v3 v3.0.2/go.mod h1:3SzNCllyD9/Y+b5r9JIKQ474KzkZyqLqEfYqMsX94Bk= gosrc.io/xmpp v0.5.1/go.mod h1:L3NFMqYOxyLz3JGmgFyWf7r9htE91zVGiK40oW4RwdY=
gotest.tools/v3 v3.0.3 h1:4AuOwCGf4lLR9u3YOe2awrHygurzhO/HeQ6laiA6Sx0= gotest.tools v2.1.0+incompatible/go.mod h1:DsYFclhRJ6vuDpmuTbkuFWG+y2sxOXAzmJt81HFBacw=
gotest.tools/v3 v3.0.3/go.mod h1:Z7Lb0S5l+klDB31fvDQX8ss/FlKDxtlFlw3Oa8Ymbl8= gotest.tools v2.2.0+incompatible h1:VsBPFP1AI068pPrMxtb/S8Zkgf9xEmTLJjfM+P5UIEo=
gotest.tools v2.2.0+incompatible/go.mod h1:DsYFclhRJ6vuDpmuTbkuFWG+y2sxOXAzmJt81HFBacw=
gotest.tools/gotestsum v0.3.5/go.mod h1:Mnf3e5FUzXbkCfynWBGOwLssY7gTQgCHObK9tMpAriY=
honnef.co/go/tools v0.0.0-20180728063816-88497007e858/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
mvdan.cc/sh v2.6.4+incompatible/go.mod h1:IeeQbZq+x2SUGBensq/jge5lLQbS3XT2ktyp3wrt4x8=
nhooyr.io/websocket v1.6.5/go.mod h1:F259lAzPRAH0htX2y3ehpJe09ih1aSHN7udWki1defY=
nhooyr.io/websocket v1.8.6 h1:s+C3xAMLwGmlI31Nyn/eAehUlZPwfYZu2JXM621Q5/k=
nhooyr.io/websocket v1.8.6/go.mod h1:B70DZP8IakI65RVQ51MsWP/8jndNma26DVA/nFSCgW0=

View file

@ -9,8 +9,6 @@ build:
- 386 - 386
- arm - arm
- arm64 - arm64
ldflags:
- -s -w -X github.com/containrrr/watchtower/internal/meta.Version={{.Version}}
archives: archives:
- -
name_template: "{{.ProjectName}}_{{.Os}}_{{.Arch}}" name_template: "{{.ProjectName}}_{{.Os}}_{{.Arch}}"
@ -38,8 +36,6 @@ dockers:
image_templates: image_templates:
- containrrr/watchtower:amd64-{{ .Version }} - containrrr/watchtower:amd64-{{ .Version }}
- containrrr/watchtower:amd64-latest - containrrr/watchtower:amd64-latest
- ghcr.io/containrrr/watchtower:amd64-{{ .Version }}
- ghcr.io/containrrr/watchtower:amd64-latest
binaries: binaries:
- watchtower - watchtower
- -
@ -52,8 +48,6 @@ dockers:
image_templates: image_templates:
- containrrr/watchtower:i386-{{ .Version }} - containrrr/watchtower:i386-{{ .Version }}
- containrrr/watchtower:i386-latest - containrrr/watchtower:i386-latest
- ghcr.io/containrrr/watchtower:i386-{{ .Version }}
- ghcr.io/containrrr/watchtower:i386-latest
binaries: binaries:
- watchtower - watchtower
- -
@ -66,8 +60,6 @@ dockers:
image_templates: image_templates:
- containrrr/watchtower:armhf-{{ .Version }} - containrrr/watchtower:armhf-{{ .Version }}
- containrrr/watchtower:armhf-latest - containrrr/watchtower:armhf-latest
- ghcr.io/containrrr/watchtower:armhf-{{ .Version }}
- ghcr.io/containrrr/watchtower:armhf-latest
binaries: binaries:
- watchtower - watchtower
- -
@ -80,7 +72,5 @@ dockers:
image_templates: image_templates:
- containrrr/watchtower:arm64v8-{{ .Version }} - containrrr/watchtower:arm64v8-{{ .Version }}
- containrrr/watchtower:arm64v8-latest - containrrr/watchtower:arm64v8-latest
- ghcr.io/containrrr/watchtower:arm64v8-{{ .Version }}
- ghcr.io/containrrr/watchtower:arm64v8-latest
binaries: binaries:
- watchtower - watchtower

View file

@ -102,7 +102,7 @@
"properties": [ "properties": [
{ {
"id": "displayName", "id": "displayName",
"value": "Failed" "value": "Faled"
} }
] ]
}, },

View file

@ -4,10 +4,13 @@ import (
"testing" "testing"
"time" "time"
"github.com/sirupsen/logrus"
"github.com/containrrr/watchtower/internal/actions" "github.com/containrrr/watchtower/internal/actions"
"github.com/containrrr/watchtower/pkg/types"
"github.com/containrrr/watchtower/pkg/container"
"github.com/containrrr/watchtower/pkg/container/mocks"
"github.com/docker/docker/api/types"
cli "github.com/docker/docker/client"
. "github.com/containrrr/watchtower/internal/actions/mocks" . "github.com/containrrr/watchtower/internal/actions/mocks"
. "github.com/onsi/ginkgo" . "github.com/onsi/ginkgo"
@ -16,51 +19,59 @@ import (
func TestActions(t *testing.T) { func TestActions(t *testing.T) {
RegisterFailHandler(Fail) RegisterFailHandler(Fail)
logrus.SetOutput(GinkgoWriter)
RunSpecs(t, "Actions Suite") RunSpecs(t, "Actions Suite")
} }
var _ = Describe("the actions package", func() { var _ = Describe("the actions package", func() {
var dockerClient cli.CommonAPIClient
var client MockClient
BeforeSuite(func() {
server := mocks.NewMockAPIServer()
dockerClient, _ = cli.NewClientWithOpts(
cli.WithHost(server.URL),
cli.WithHTTPClient(server.Client()))
})
BeforeEach(func() {
pullImages := false
removeVolumes := false
client = CreateMockClient(
&TestData{},
dockerClient,
pullImages,
removeVolumes,
)
})
Describe("the check prerequisites method", func() { Describe("the check prerequisites method", func() {
When("given an empty array", func() { When("given an empty array", func() {
It("should not do anything", func() { It("should not do anything", func() {
client := CreateMockClient( client.TestData.Containers = []container.Container{}
&TestData{}, err := actions.CheckForMultipleWatchtowerInstances(client, false, "")
// pullImages: Expect(err).NotTo(HaveOccurred())
false,
// removeVolumes:
false,
)
Expect(actions.CheckForMultipleWatchtowerInstances(client, false, "")).To(Succeed())
}) })
}) })
When("given an array of one", func() { When("given an array of one", func() {
It("should not do anything", func() { It("should not do anything", func() {
client := CreateMockClient( client.TestData.Containers = []container.Container{
&TestData{ CreateMockContainer(
Containers: []types.Container{ "test-container",
CreateMockContainer( "test-container",
"test-container", "watchtower",
"test-container", time.Now()),
"watchtower", }
time.Now()), err := actions.CheckForMultipleWatchtowerInstances(client, false, "")
}, Expect(err).NotTo(HaveOccurred())
},
// pullImages:
false,
// removeVolumes:
false,
)
Expect(actions.CheckForMultipleWatchtowerInstances(client, false, "")).To(Succeed())
}) })
}) })
When("given multiple containers", func() { When("given multiple containers", func() {
var client MockClient
BeforeEach(func() { BeforeEach(func() {
pullImages := false
removeVolumes := false
client = CreateMockClient( client = CreateMockClient(
&TestData{ &TestData{
NameOfContainerToKeep: "test-container-02", NameOfContainerToKeep: "test-container-02",
Containers: []types.Container{ Containers: []container.Container{
CreateMockContainer( CreateMockContainer(
"test-container-01", "test-container-01",
"test-container-01", "test-container-01",
@ -73,10 +84,9 @@ var _ = Describe("the actions package", func() {
time.Now()), time.Now()),
}, },
}, },
// pullImages: dockerClient,
false, pullImages,
// removeVolumes: removeVolumes,
false,
) )
}) })
@ -86,11 +96,13 @@ var _ = Describe("the actions package", func() {
}) })
}) })
When("deciding whether to cleanup images", func() { When("deciding whether to cleanup images", func() {
var client MockClient
BeforeEach(func() { BeforeEach(func() {
pullImages := false
removeVolumes := false
client = CreateMockClient( client = CreateMockClient(
&TestData{ &TestData{
Containers: []types.Container{ Containers: []container.Container{
CreateMockContainer( CreateMockContainer(
"test-container-01", "test-container-01",
"test-container-01", "test-container-01",
@ -103,10 +115,9 @@ var _ = Describe("the actions package", func() {
time.Now()), time.Now()),
}, },
}, },
// pullImages: dockerClient,
false, pullImages,
// removeVolumes: removeVolumes,
false,
) )
}) })
It("should try to delete the image if the cleanup flag is true", func() { It("should try to delete the image if the cleanup flag is true", func() {
@ -122,3 +133,15 @@ var _ = Describe("the actions package", func() {
}) })
}) })
}) })
func createMockContainer(id string, name string, image string, created time.Time) container.Container {
content := types.ContainerJSON{
ContainerJSONBase: &types.ContainerJSONBase{
ID: id,
Image: image,
Name: name,
Created: created.String(),
},
}
return *container.NewContainer(&content, nil)
}

View file

@ -5,47 +5,25 @@ import (
"sort" "sort"
"time" "time"
"github.com/containrrr/watchtower/pkg/container"
"github.com/containrrr/watchtower/pkg/filters" "github.com/containrrr/watchtower/pkg/filters"
"github.com/containrrr/watchtower/pkg/sorter" "github.com/containrrr/watchtower/pkg/sorter"
"github.com/containrrr/watchtower/pkg/types" "github.com/sirupsen/logrus"
log "github.com/sirupsen/logrus" log "github.com/sirupsen/logrus"
"github.com/containrrr/watchtower/pkg/container"
) )
// CheckForSanity makes sure everything is sane before starting
func CheckForSanity(client container.Client, filter types.Filter, rollingRestarts bool) error {
log.Debug("Making sure everything is sane before starting")
if rollingRestarts {
containers, err := client.ListContainers(filter)
if err != nil {
return err
}
for _, c := range containers {
if len(c.Links()) > 0 {
return fmt.Errorf(
"%q is depending on at least one other container. This is not compatible with rolling restarts",
c.Name(),
)
}
}
}
return nil
}
// CheckForMultipleWatchtowerInstances will ensure that there are not multiple instances of the // CheckForMultipleWatchtowerInstances will ensure that there are not multiple instances of the
// watchtower running simultaneously. If multiple watchtower containers are detected, this function // watchtower running simultaneously. If multiple watchtower containers are detected, this function
// will stop and remove all but the most recently started container. This behaviour can be bypassed // will stop and remove all but the most recently started container. This behaviour can be bypassed
// if a scope UID is defined. // if a scope UID is defined.
func CheckForMultipleWatchtowerInstances(client container.Client, cleanup bool, scope string) error { func CheckForMultipleWatchtowerInstances(client container.Client, cleanup bool, scope string) error {
filter := filters.WatchtowerContainersFilter awaitDockerClient()
if scope != "" { containers, err := client.ListContainers(filters.FilterByScope(scope, filters.WatchtowerContainersFilter))
filter = filters.FilterByScope(scope, filter)
}
containers, err := client.ListContainers(filter)
if err != nil { if err != nil {
log.Fatal(err)
return err return err
} }
@ -58,7 +36,7 @@ func CheckForMultipleWatchtowerInstances(client container.Client, cleanup bool,
return cleanupExcessWatchtowers(containers, client, cleanup) return cleanupExcessWatchtowers(containers, client, cleanup)
} }
func cleanupExcessWatchtowers(containers []types.Container, client container.Client, cleanup bool) error { func cleanupExcessWatchtowers(containers []container.Container, client container.Client, cleanup bool) error {
var stopErrors int var stopErrors int
sort.Sort(sorter.ByCreated(containers)) sort.Sort(sorter.ByCreated(containers))
@ -67,14 +45,14 @@ func cleanupExcessWatchtowers(containers []types.Container, client container.Cli
for _, c := range allContainersExceptLast { for _, c := range allContainersExceptLast {
if err := client.StopContainer(c, 10*time.Minute); err != nil { if err := client.StopContainer(c, 10*time.Minute); err != nil {
// logging the original here as we're just returning a count // logging the original here as we're just returning a count
log.WithError(err).Error("Could not stop a previous watchtower instance.") logrus.WithError(err).Error("Could not stop a previous watchtower instance.")
stopErrors++ stopErrors++
continue continue
} }
if cleanup { if cleanup {
if err := client.RemoveImageByID(c.ImageID()); err != nil { if err := client.RemoveImageByID(c.ImageID()); err != nil {
log.WithError(err).Warning("Could not cleanup watchtower images, possibly because of other watchtowers instances in other scopes.") logrus.WithError(err).Warning("Could not cleanup watchtower images, possibly because of other watchtowers instances in other scopes.")
} }
} }
} }
@ -85,3 +63,8 @@ func cleanupExcessWatchtowers(containers []types.Container, client container.Cli
return nil return nil
} }
func awaitDockerClient() {
log.Debug("Sleeping for a second to ensure the docker api client has been properly initialized.")
time.Sleep(1 * time.Second)
}

View file

@ -2,15 +2,17 @@ package mocks
import ( import (
"errors" "errors"
"fmt" "github.com/containrrr/watchtower/pkg/container"
"time" "time"
t "github.com/containrrr/watchtower/pkg/types" t "github.com/containrrr/watchtower/pkg/types"
cli "github.com/docker/docker/client"
) )
// MockClient is a mock that passes as a watchtower Client // MockClient is a mock that passes as a watchtower Client
type MockClient struct { type MockClient struct {
TestData *TestData TestData *TestData
api cli.CommonAPIClient
pullImages bool pullImages bool
removeVolumes bool removeVolumes bool
} }
@ -19,8 +21,7 @@ type MockClient struct {
type TestData struct { type TestData struct {
TriedToRemoveImageCount int TriedToRemoveImageCount int
NameOfContainerToKeep string NameOfContainerToKeep string
Containers []t.Container Containers []container.Container
Staleness map[string]bool
} }
// TriedToRemoveImage is a test helper function to check whether RemoveImageByID has been called // TriedToRemoveImage is a test helper function to check whether RemoveImageByID has been called
@ -29,21 +30,22 @@ func (testdata *TestData) TriedToRemoveImage() bool {
} }
// CreateMockClient creates a mock watchtower Client for usage in tests // CreateMockClient creates a mock watchtower Client for usage in tests
func CreateMockClient(data *TestData, pullImages bool, removeVolumes bool) MockClient { func CreateMockClient(data *TestData, api cli.CommonAPIClient, pullImages bool, removeVolumes bool) MockClient {
return MockClient{ return MockClient{
data, data,
api,
pullImages, pullImages,
removeVolumes, removeVolumes,
} }
} }
// ListContainers is a mock method returning the provided container testdata // ListContainers is a mock method returning the provided container testdata
func (client MockClient) ListContainers(_ t.Filter) ([]t.Container, error) { func (client MockClient) ListContainers(f t.Filter) ([]container.Container, error) {
return client.TestData.Containers, nil return client.TestData.Containers, nil
} }
// StopContainer is a mock method // StopContainer is a mock method
func (client MockClient) StopContainer(c t.Container, _ time.Duration) error { func (client MockClient) StopContainer(c container.Container, d time.Duration) error {
if c.Name() == client.TestData.NameOfContainerToKeep { if c.Name() == client.TestData.NameOfContainerToKeep {
return errors.New("tried to stop the instance we want to keep") return errors.New("tried to stop the instance we want to keep")
} }
@ -51,50 +53,32 @@ func (client MockClient) StopContainer(c t.Container, _ time.Duration) error {
} }
// StartContainer is a mock method // StartContainer is a mock method
func (client MockClient) StartContainer(_ t.Container) (t.ContainerID, error) { func (client MockClient) StartContainer(c container.Container) (string, error) {
return "", nil return "", nil
} }
// RenameContainer is a mock method // RenameContainer is a mock method
func (client MockClient) RenameContainer(_ t.Container, _ string) error { func (client MockClient) RenameContainer(c container.Container, s string) error {
return nil return nil
} }
// RemoveImageByID increments the TriedToRemoveImageCount on being called // RemoveImageByID increments the TriedToRemoveImageCount on being called
func (client MockClient) RemoveImageByID(_ t.ImageID) error { func (client MockClient) RemoveImageByID(id string) error {
client.TestData.TriedToRemoveImageCount++ client.TestData.TriedToRemoveImageCount++
return nil return nil
} }
// GetContainer is a mock method // GetContainer is a mock method
func (client MockClient) GetContainer(_ t.ContainerID) (t.Container, error) { func (client MockClient) GetContainer(containerID string) (container.Container, error) {
return client.TestData.Containers[0], nil return container.Container{}, nil
} }
// ExecuteCommand is a mock method // ExecuteCommand is a mock method
func (client MockClient) ExecuteCommand(_ t.ContainerID, command string, _ int) (SkipUpdate bool, err error) { func (client MockClient) ExecuteCommand(containerID string, command string, timeout int) error {
switch command { return nil
case "/PreUpdateReturn0.sh":
return false, nil
case "/PreUpdateReturn1.sh":
return false, fmt.Errorf("command exited with code 1")
case "/PreUpdateReturn75.sh":
return true, nil
default:
return false, nil
}
} }
// IsContainerStale is true if not explicitly stated in TestData for the mock client // IsContainerStale is always true for the mock client
func (client MockClient) IsContainerStale(cont t.Container, params t.UpdateParams) (bool, t.ImageID, error) { func (client MockClient) IsContainerStale(c container.Container) (bool, error) {
stale, found := client.TestData.Staleness[cont.Name()] return true, nil
if !found {
stale = true
}
return stale, "", nil
}
// WarnOnHeadPullFailed is always true for the mock client
func (client MockClient) WarnOnHeadPullFailed(_ t.Container) bool {
return true
} }

View file

@ -1,59 +1,14 @@
package mocks package mocks
import ( import (
"fmt"
"strconv"
"strings"
"time"
"github.com/containrrr/watchtower/pkg/container" "github.com/containrrr/watchtower/pkg/container"
wt "github.com/containrrr/watchtower/pkg/types"
"github.com/docker/docker/api/types" "github.com/docker/docker/api/types"
dockerContainer "github.com/docker/docker/api/types/container" container2 "github.com/docker/docker/api/types/container"
"github.com/docker/go-connections/nat" "time"
) )
// CreateMockContainer creates a container substitute valid for testing // CreateMockContainer creates a container substitute valid for testing
func CreateMockContainer(id string, name string, image string, created time.Time) wt.Container { func CreateMockContainer(id string, name string, image string, created time.Time) container.Container {
content := types.ContainerJSON{
ContainerJSONBase: &types.ContainerJSONBase{
ID: id,
Image: image,
Name: name,
Created: created.String(),
HostConfig: &dockerContainer.HostConfig{
PortBindings: map[nat.Port][]nat.PortBinding{},
},
},
Config: &dockerContainer.Config{
Image: image,
Labels: make(map[string]string),
ExposedPorts: map[nat.Port]struct{}{},
},
}
return container.NewContainer(
&content,
CreateMockImageInfo(image),
)
}
// CreateMockImageInfo returns a mock image info struct based on the passed image
func CreateMockImageInfo(image string) *types.ImageInspect {
return &types.ImageInspect{
ID: image,
RepoDigests: []string{
image,
},
}
}
// CreateMockContainerWithImageInfo should only be used for testing
func CreateMockContainerWithImageInfo(id string, name string, image string, created time.Time, imageInfo types.ImageInspect) wt.Container {
return CreateMockContainerWithImageInfoP(id, name, image, created, &imageInfo)
}
// CreateMockContainerWithImageInfoP should only be used for testing
func CreateMockContainerWithImageInfoP(id string, name string, image string, created time.Time, imageInfo *types.ImageInspect) wt.Container {
content := types.ContainerJSON{ content := types.ContainerJSON{
ContainerJSONBase: &types.ContainerJSONBase{ ContainerJSONBase: &types.ContainerJSONBase{
ID: id, ID: id,
@ -61,83 +16,64 @@ func CreateMockContainerWithImageInfoP(id string, name string, image string, cre
Name: name, Name: name,
Created: created.String(), Created: created.String(),
}, },
Config: &dockerContainer.Config{ Config: &container2.Config{
Image: image, Image: image,
Labels: make(map[string]string), Labels: make(map[string]string),
}, },
} }
return container.NewContainer( return *container.NewContainer(
&content, &content,
imageInfo, &types.ImageInspect{
ID: image,
RepoDigests: []string{
image,
},
},
)
}
// CreateMockContainerWithImageInfo should only be used for testing
func CreateMockContainerWithImageInfo(id string, name string, image string, created time.Time, imageInfo types.ImageInspect) container.Container {
content := types.ContainerJSON{
ContainerJSONBase: &types.ContainerJSONBase{
ID: id,
Image: image,
Name: name,
Created: created.String(),
},
Config: &container2.Config{
Image: image,
Labels: make(map[string]string),
},
}
return *container.NewContainer(
&content,
&imageInfo,
) )
} }
// CreateMockContainerWithDigest should only be used for testing // CreateMockContainerWithDigest should only be used for testing
func CreateMockContainerWithDigest(id string, name string, image string, created time.Time, digest string) wt.Container { func CreateMockContainerWithDigest(id string, name string, image string, created time.Time, digest string) container.Container {
c := CreateMockContainer(id, name, image, created) c := CreateMockContainer(id, name, image, created)
c.ImageInfo().RepoDigests = []string{digest} c.ImageInfo().RepoDigests = []string{digest}
return c return c
} }
// CreateMockContainerWithConfig creates a container substitute valid for testing // CreateMockContainerWithConfig creates a container substitute valid for testing
func CreateMockContainerWithConfig(id string, name string, image string, running bool, restarting bool, created time.Time, config *dockerContainer.Config) wt.Container { func CreateMockContainerWithConfig(id string, name string, image string, created time.Time, config *container2.Config) container.Container {
content := types.ContainerJSON{
ContainerJSONBase: &types.ContainerJSONBase{
ID: id,
Image: image,
Name: name,
State: &types.ContainerState{
Running: running,
Restarting: restarting,
},
Created: created.String(),
HostConfig: &dockerContainer.HostConfig{
PortBindings: map[nat.Port][]nat.PortBinding{},
},
},
Config: config,
}
return container.NewContainer(
&content,
CreateMockImageInfo(image),
)
}
// CreateContainerForProgress creates a container substitute for tracking session/update progress
func CreateContainerForProgress(index int, idPrefix int, nameFormat string) (wt.Container, wt.ImageID) {
indexStr := strconv.Itoa(idPrefix + index)
mockID := indexStr + strings.Repeat("0", 61-len(indexStr))
contID := "c79" + mockID
contName := fmt.Sprintf(nameFormat, index+1)
oldImgID := "01d" + mockID
newImgID := "d0a" + mockID
imageName := fmt.Sprintf("mock/%s:latest", contName)
config := &dockerContainer.Config{
Image: imageName,
}
c := CreateMockContainerWithConfig(contID, contName, oldImgID, true, false, time.Now(), config)
return c, wt.ImageID(newImgID)
}
// CreateMockContainerWithLinks should only be used for testing
func CreateMockContainerWithLinks(id string, name string, image string, created time.Time, links []string, imageInfo *types.ImageInspect) wt.Container {
content := types.ContainerJSON{ content := types.ContainerJSON{
ContainerJSONBase: &types.ContainerJSONBase{ ContainerJSONBase: &types.ContainerJSONBase{
ID: id, ID: id,
Image: image, Image: image,
Name: name, Name: name,
Created: created.String(), Created: created.String(),
HostConfig: &dockerContainer.HostConfig{
Links: links,
},
},
Config: &dockerContainer.Config{
Image: image,
Labels: make(map[string]string),
}, },
Config: config,
} }
return container.NewContainer( return *container.NewContainer(
&content, &content,
imageInfo, &types.ImageInspect{
ID: image,
},
) )
} }

View file

@ -1,44 +0,0 @@
package mocks
import (
"errors"
"github.com/containrrr/watchtower/pkg/session"
wt "github.com/containrrr/watchtower/pkg/types"
)
// CreateMockProgressReport creates a mock report from a given set of container states
// All containers will be given a unique ID and name based on its state and index
func CreateMockProgressReport(states ...session.State) wt.Report {
stateNums := make(map[session.State]int)
progress := session.Progress{}
failed := make(map[wt.ContainerID]error)
for _, state := range states {
index := stateNums[state]
switch state {
case session.SkippedState:
c, _ := CreateContainerForProgress(index, 41, "skip%d")
progress.AddSkipped(c, errors.New("unpossible"))
case session.FreshState:
c, _ := CreateContainerForProgress(index, 31, "frsh%d")
progress.AddScanned(c, c.ImageID())
case session.UpdatedState:
c, newImage := CreateContainerForProgress(index, 11, "updt%d")
progress.AddScanned(c, newImage)
progress.MarkForUpdate(c.ID())
case session.FailedState:
c, newImage := CreateContainerForProgress(index, 21, "fail%d")
progress.AddScanned(c, newImage)
failed[c.ID()] = errors.New("accidentally the whole container")
}
stateNums[state] = index + 1
}
progress.UpdateFailed(failed)
return progress.Report()
}

View file

@ -2,11 +2,10 @@ package actions
import ( import (
"errors" "errors"
"github.com/containrrr/watchtower/internal/util" "github.com/containrrr/watchtower/internal/util"
"github.com/containrrr/watchtower/pkg/container" "github.com/containrrr/watchtower/pkg/container"
"github.com/containrrr/watchtower/pkg/lifecycle" "github.com/containrrr/watchtower/pkg/lifecycle"
"github.com/containrrr/watchtower/pkg/session" metrics2 "github.com/containrrr/watchtower/pkg/metrics"
"github.com/containrrr/watchtower/pkg/sorter" "github.com/containrrr/watchtower/pkg/sorter"
"github.com/containrrr/watchtower/pkg/types" "github.com/containrrr/watchtower/pkg/types"
log "github.com/sirupsen/logrus" log "github.com/sirupsen/logrus"
@ -16,9 +15,9 @@ import (
// used to start those containers have been updated. If a change is detected in // used to start those containers have been updated. If a change is detected in
// any of the images, the associated containers are stopped and restarted with // any of the images, the associated containers are stopped and restarted with
// the new image. // the new image.
func Update(client container.Client, params types.UpdateParams) (types.Report, error) { func Update(client container.Client, params types.UpdateParams) (*metrics2.Metric, error) {
log.Debug("Checking containers for updated images") log.Debug("Checking containers for updated images")
progress := &session.Progress{} metric := &metrics2.Metric{}
staleCount := 0 staleCount := 0
if params.LifecycleHooks { if params.LifecycleHooks {
@ -33,31 +32,17 @@ func Update(client container.Client, params types.UpdateParams) (types.Report, e
staleCheckFailed := 0 staleCheckFailed := 0
for i, targetContainer := range containers { for i, targetContainer := range containers {
stale, newestImage, err := client.IsContainerStale(targetContainer, params) stale, err := client.IsContainerStale(targetContainer)
shouldUpdate := stale && !params.NoRestart && !targetContainer.IsMonitorOnly(params) if stale && !params.NoRestart && !params.MonitorOnly && !targetContainer.IsMonitorOnly() && !targetContainer.HasImageInfo() {
if err == nil && shouldUpdate { err = errors.New("no available image info")
// Check to make sure we have all the necessary information for recreating the container
err = targetContainer.VerifyConfiguration()
// If the image information is incomplete and trace logging is enabled, log it for further diagnosis
if err != nil && log.IsLevelEnabled(log.TraceLevel) {
imageInfo := targetContainer.ImageInfo()
log.Tracef("Image info: %#v", imageInfo)
log.Tracef("Container info: %#v", targetContainer.ContainerInfo())
if imageInfo != nil {
log.Tracef("Image config: %#v", imageInfo.Config)
}
}
} }
if err != nil { if err != nil {
log.Infof("Unable to update container %q: %v. Proceeding to next.", targetContainer.Name(), err) log.Infof("Unable to update container %q: %v. Proceeding to next.", containers[i].Name(), err)
stale = false stale = false
staleCheckFailed++ staleCheckFailed++
progress.AddSkipped(targetContainer, err) metric.Failed++
} else {
progress.AddScanned(targetContainer, newestImage)
} }
containers[i].SetStale(stale) containers[i].Stale = stale
if stale { if stale {
staleCount++ staleCount++
@ -65,52 +50,50 @@ func Update(client container.Client, params types.UpdateParams) (types.Report, e
} }
containers, err = sorter.SortByDependencies(containers) containers, err = sorter.SortByDependencies(containers)
metric.Scanned = len(containers)
if err != nil { if err != nil {
return nil, err return nil, err
} }
UpdateImplicitRestart(containers) checkDependencies(containers)
var containersToUpdate []types.Container containersToUpdate := []container.Container{}
for _, c := range containers { if !params.MonitorOnly {
if !c.IsMonitorOnly(params) { for i := len(containers) - 1; i >= 0; i-- {
containersToUpdate = append(containersToUpdate, c) if !containers[i].IsMonitorOnly() {
progress.MarkForUpdate(c.ID()) containersToUpdate = append(containersToUpdate, containers[i])
}
} }
} }
if params.RollingRestart { if params.RollingRestart {
progress.UpdateFailed(performRollingRestart(containersToUpdate, client, params)) metric.Failed += performRollingRestart(containersToUpdate, client, params)
} else { } else {
failedStop, stoppedImages := stopContainersInReversedOrder(containersToUpdate, client, params) metric.Failed += stopContainersInReversedOrder(containersToUpdate, client, params)
progress.UpdateFailed(failedStop) metric.Failed += restartContainersInSortedOrder(containersToUpdate, client, params)
failedStart := restartContainersInSortedOrder(containersToUpdate, client, params, stoppedImages)
progress.UpdateFailed(failedStart)
} }
metric.Updated = staleCount - (metric.Failed - staleCheckFailed)
if params.LifecycleHooks { if params.LifecycleHooks {
lifecycle.ExecutePostChecks(client, params) lifecycle.ExecutePostChecks(client, params)
} }
return progress.Report(), nil return metric, nil
} }
func performRollingRestart(containers []types.Container, client container.Client, params types.UpdateParams) map[types.ContainerID]error { func performRollingRestart(containers []container.Container, client container.Client, params types.UpdateParams) int {
cleanupImageIDs := make(map[types.ImageID]bool, len(containers)) cleanupImageIDs := make(map[string]bool)
failed := make(map[types.ContainerID]error, len(containers)) failed := 0
for i := len(containers) - 1; i >= 0; i-- { for i := len(containers) - 1; i >= 0; i-- {
if containers[i].ToRestart() { if containers[i].Stale {
err := stopStaleContainer(containers[i], client, params) if err := stopStaleContainer(containers[i], client, params); err != nil {
if err != nil { failed++
failed[containers[i].ID()] = err
} else {
if err := restartStaleContainer(containers[i], client, params); err != nil {
failed[containers[i].ID()] = err
} else if containers[i].IsStale() {
// Only add (previously) stale containers' images to cleanup
cleanupImageIDs[containers[i].ImageID()] = true
}
} }
if err := restartStaleContainer(containers[i], client, params); err != nil {
failed++
}
cleanupImageIDs[containers[i].ImageID()] = true
} }
} }
@ -120,49 +103,31 @@ func performRollingRestart(containers []types.Container, client container.Client
return failed return failed
} }
func stopContainersInReversedOrder(containers []types.Container, client container.Client, params types.UpdateParams) (failed map[types.ContainerID]error, stopped map[types.ImageID]bool) { func stopContainersInReversedOrder(containers []container.Container, client container.Client, params types.UpdateParams) int {
failed = make(map[types.ContainerID]error, len(containers)) failed := 0
stopped = make(map[types.ImageID]bool, len(containers))
for i := len(containers) - 1; i >= 0; i-- { for i := len(containers) - 1; i >= 0; i-- {
if err := stopStaleContainer(containers[i], client, params); err != nil { if err := stopStaleContainer(containers[i], client, params); err != nil {
failed[containers[i].ID()] = err failed++
} else {
// NOTE: If a container is restarted due to a dependency this might be empty
stopped[containers[i].SafeImageID()] = true
} }
} }
return return failed
} }
func stopStaleContainer(container types.Container, client container.Client, params types.UpdateParams) error { func stopStaleContainer(container container.Container, client container.Client, params types.UpdateParams) error {
if container.IsWatchtower() { if container.IsWatchtower() {
log.Debugf("This is the watchtower container %s", container.Name()) log.Debugf("This is the watchtower container %s", container.Name())
return nil return nil
} }
if !container.ToRestart() { if !container.Stale {
return nil return nil
} }
// Perform an additional check here to prevent us from stopping a linked container we cannot restart
if container.IsLinkedToRestarting() {
if err := container.VerifyConfiguration(); err != nil {
return err
}
}
if params.LifecycleHooks { if params.LifecycleHooks {
skipUpdate, err := lifecycle.ExecutePreUpdateCommand(client, container) if err := lifecycle.ExecutePreUpdateCommand(client, container); err != nil {
if err != nil {
log.Error(err) log.Error(err)
log.Info("Skipping container as the pre-update command failed") log.Info("Skipping container as the pre-update command failed")
return err return err
} }
if skipUpdate {
log.Debug("Skipping container as the pre-update command returned exit code 75 (EX_TEMPFAIL)")
return errors.New("skipping container as the pre-update command returned exit code 75 (EX_TEMPFAIL)")
}
} }
if err := client.StopContainer(container, params.Timeout); err != nil { if err := client.StopContainer(container, params.Timeout); err != nil {
@ -172,43 +137,37 @@ func stopStaleContainer(container types.Container, client container.Client, para
return nil return nil
} }
func restartContainersInSortedOrder(containers []types.Container, client container.Client, params types.UpdateParams, stoppedImages map[types.ImageID]bool) map[types.ContainerID]error { func restartContainersInSortedOrder(containers []container.Container, client container.Client, params types.UpdateParams) int {
cleanupImageIDs := make(map[types.ImageID]bool, len(containers)) imageIDs := make(map[string]bool)
failed := make(map[types.ContainerID]error, len(containers))
failed := 0
for _, c := range containers { for _, c := range containers {
if !c.ToRestart() { if !c.Stale {
continue continue
} }
if stoppedImages[c.SafeImageID()] { if err := restartStaleContainer(c, client, params); err != nil {
if err := restartStaleContainer(c, client, params); err != nil { failed++
failed[c.ID()] = err
} else if c.IsStale() {
// Only add (previously) stale containers' images to cleanup
cleanupImageIDs[c.ImageID()] = true
}
} }
imageIDs[c.ImageID()] = true
} }
if params.Cleanup { if params.Cleanup {
cleanupImages(client, cleanupImageIDs) cleanupImages(client, imageIDs)
} }
return failed return failed
} }
func cleanupImages(client container.Client, imageIDs map[types.ImageID]bool) { func cleanupImages(client container.Client, imageIDs map[string]bool) {
for imageID := range imageIDs { for imageID := range imageIDs {
if imageID == "" {
continue
}
if err := client.RemoveImageByID(imageID); err != nil { if err := client.RemoveImageByID(imageID); err != nil {
log.Error(err) log.Error(err)
} }
} }
} }
func restartStaleContainer(container types.Container, client container.Client, params types.UpdateParams) error { func restartStaleContainer(container container.Container, client container.Client, params types.UpdateParams) error {
// Since we can't shutdown a watchtower container immediately, we need to // Since we can't shutdown a watchtower container immediately, we need to
// start the new one while the old one is still running. This prevents us // start the new one while the old one is still running. This prevents us
// from re-using the same container name so we first rename the current // from re-using the same container name so we first rename the current
@ -224,44 +183,28 @@ func restartStaleContainer(container types.Container, client container.Client, p
if newContainerID, err := client.StartContainer(container); err != nil { if newContainerID, err := client.StartContainer(container); err != nil {
log.Error(err) log.Error(err)
return err return err
} else if container.ToRestart() && params.LifecycleHooks { } else if container.Stale && params.LifecycleHooks {
lifecycle.ExecutePostUpdateCommand(client, newContainerID) lifecycle.ExecutePostUpdateCommand(client, newContainerID)
} }
} }
return nil return nil
} }
// UpdateImplicitRestart iterates through the passed containers, setting the func checkDependencies(containers []container.Container) {
// `LinkedToRestarting` flag if any of it's linked containers are marked for restart
func UpdateImplicitRestart(containers []types.Container) {
for ci, c := range containers { for i, parent := range containers {
if c.ToRestart() { if parent.ToRestart() {
// The container is already marked for restart, no need to check
continue continue
} }
if link := linkedContainerMarkedForRestart(c.Links(), containers); link != "" { LinkLoop:
log.WithFields(log.Fields{ for _, linkName := range parent.Links() {
"restarting": link, for _, child := range containers {
"linked": c.Name(), if child.Name() == linkName && child.ToRestart() {
}).Debug("container is linked to restarting") containers[i].Linked = true
// NOTE: To mutate the array, the `c` variable cannot be used as it's a copy break LinkLoop
containers[ci].SetLinkedToRestarting(true) }
}
}
}
// linkedContainerMarkedForRestart returns the name of the first link that matches a
// container marked for restart
func linkedContainerMarkedForRestart(links []string, containers []types.Container) string {
for _, linkName := range links {
for _, candidate := range containers {
if candidate.Name() == linkName && candidate.ToRestart() {
return linkName
} }
} }
} }
return ""
} }

View file

@ -1,75 +1,64 @@
package actions_test package actions_test
import ( import (
"time"
"github.com/containrrr/watchtower/internal/actions" "github.com/containrrr/watchtower/internal/actions"
"github.com/containrrr/watchtower/pkg/container"
"github.com/containrrr/watchtower/pkg/container/mocks"
"github.com/containrrr/watchtower/pkg/types" "github.com/containrrr/watchtower/pkg/types"
dockerTypes "github.com/docker/docker/api/types" container2 "github.com/docker/docker/api/types/container"
dockerContainer "github.com/docker/docker/api/types/container" cli "github.com/docker/docker/client"
"github.com/docker/go-connections/nat" "time"
. "github.com/containrrr/watchtower/internal/actions/mocks" . "github.com/containrrr/watchtower/internal/actions/mocks"
. "github.com/onsi/ginkgo" . "github.com/onsi/ginkgo"
. "github.com/onsi/gomega" . "github.com/onsi/gomega"
) )
func getCommonTestData(keepContainer string) *TestData {
return &TestData{
NameOfContainerToKeep: keepContainer,
Containers: []types.Container{
CreateMockContainer(
"test-container-01",
"test-container-01",
"fake-image:latest",
time.Now().AddDate(0, 0, -1)),
CreateMockContainer(
"test-container-02",
"test-container-02",
"fake-image:latest",
time.Now()),
CreateMockContainer(
"test-container-02",
"test-container-02",
"fake-image:latest",
time.Now()),
},
}
}
func getLinkedTestData(withImageInfo bool) *TestData {
staleContainer := CreateMockContainer(
"test-container-01",
"/test-container-01",
"fake-image1:latest",
time.Now().AddDate(0, 0, -1))
var imageInfo *dockerTypes.ImageInspect
if withImageInfo {
imageInfo = CreateMockImageInfo("test-container-02")
}
linkingContainer := CreateMockContainerWithLinks(
"test-container-02",
"/test-container-02",
"fake-image2:latest",
time.Now(),
[]string{staleContainer.Name()},
imageInfo)
return &TestData{
Staleness: map[string]bool{linkingContainer.Name(): false},
Containers: []types.Container{
staleContainer,
linkingContainer,
},
}
}
var _ = Describe("the update action", func() { var _ = Describe("the update action", func() {
var dockerClient cli.CommonAPIClient
var client MockClient
BeforeEach(func() {
server := mocks.NewMockAPIServer()
dockerClient, _ = cli.NewClientWithOpts(
cli.WithHost(server.URL),
cli.WithHTTPClient(server.Client()))
})
When("watchtower has been instructed to clean up", func() { When("watchtower has been instructed to clean up", func() {
BeforeEach(func() {
pullImages := false
removeVolumes := false
client = CreateMockClient(
&TestData{
NameOfContainerToKeep: "test-container-02",
Containers: []container.Container{
CreateMockContainer(
"test-container-01",
"test-container-01",
"fake-image:latest",
time.Now().AddDate(0, 0, -1)),
CreateMockContainer(
"test-container-02",
"test-container-02",
"fake-image:latest",
time.Now()),
CreateMockContainer(
"test-container-02",
"test-container-02",
"fake-image:latest",
time.Now()),
},
},
dockerClient,
pullImages,
removeVolumes,
)
})
When("there are multiple containers using the same image", func() { When("there are multiple containers using the same image", func() {
It("should only try to remove the image once", func() { It("should only try to remove the image once", func() {
client := CreateMockClient(getCommonTestData(""), false, false)
_, err := actions.Update(client, types.UpdateParams{Cleanup: true}) _, err := actions.Update(client, types.UpdateParams{Cleanup: true})
Expect(err).NotTo(HaveOccurred()) Expect(err).NotTo(HaveOccurred())
Expect(client.TestData.TriedToRemoveImageCount).To(Equal(1)) Expect(client.TestData.TriedToRemoveImageCount).To(Equal(1))
@ -77,9 +66,8 @@ var _ = Describe("the update action", func() {
}) })
When("there are multiple containers using different images", func() { When("there are multiple containers using different images", func() {
It("should try to remove each of them", func() { It("should try to remove each of them", func() {
testData := getCommonTestData("") client.TestData.Containers = append(
testData.Containers = append( client.TestData.Containers,
testData.Containers,
CreateMockContainer( CreateMockContainer(
"unique-test-container", "unique-test-container",
"unique-test-container", "unique-test-container",
@ -87,49 +75,28 @@ var _ = Describe("the update action", func() {
time.Now(), time.Now(),
), ),
) )
client := CreateMockClient(testData, false, false)
_, err := actions.Update(client, types.UpdateParams{Cleanup: true}) _, err := actions.Update(client, types.UpdateParams{Cleanup: true})
Expect(err).NotTo(HaveOccurred()) Expect(err).NotTo(HaveOccurred())
Expect(client.TestData.TriedToRemoveImageCount).To(Equal(2)) Expect(client.TestData.TriedToRemoveImageCount).To(Equal(2))
}) })
}) })
When("there are linked containers being updated", func() {
It("should not try to remove their images", func() {
client := CreateMockClient(getLinkedTestData(true), false, false)
_, err := actions.Update(client, types.UpdateParams{Cleanup: true})
Expect(err).NotTo(HaveOccurred())
Expect(client.TestData.TriedToRemoveImageCount).To(Equal(1))
})
})
When("performing a rolling restart update", func() { When("performing a rolling restart update", func() {
It("should try to remove the image once", func() { It("should try to remove the image once", func() {
client := CreateMockClient(getCommonTestData(""), false, false)
_, err := actions.Update(client, types.UpdateParams{Cleanup: true, RollingRestart: true}) _, err := actions.Update(client, types.UpdateParams{Cleanup: true, RollingRestart: true})
Expect(err).NotTo(HaveOccurred()) Expect(err).NotTo(HaveOccurred())
Expect(client.TestData.TriedToRemoveImageCount).To(Equal(1)) Expect(client.TestData.TriedToRemoveImageCount).To(Equal(1))
}) })
}) })
When("updating a linked container with missing image info", func() {
It("should gracefully fail", func() {
client := CreateMockClient(getLinkedTestData(false), false, false)
report, err := actions.Update(client, types.UpdateParams{})
Expect(err).NotTo(HaveOccurred())
// Note: Linked containers that were skipped for recreation is not counted in Failed
// If this happens, an error is emitted to the logs, so a notification should still be sent.
Expect(report.Updated()).To(HaveLen(1))
Expect(report.Fresh()).To(HaveLen(1))
})
})
}) })
When("watchtower has been instructed to monitor only", func() { When("watchtower has been instructed to monitor only", func() {
When("certain containers are set to monitor only", func() { When("certain containers are set to monitor only", func() {
It("should not update those containers", func() { BeforeEach(func() {
client := CreateMockClient( client = CreateMockClient(
&TestData{ &TestData{
NameOfContainerToKeep: "test-container-02", NameOfContainerToKeep: "test-container-02",
Containers: []types.Container{ Containers: []container.Container{
CreateMockContainer( CreateMockContainer(
"test-container-01", "test-container-01",
"test-container-01", "test-container-01",
@ -139,19 +106,21 @@ var _ = Describe("the update action", func() {
"test-container-02", "test-container-02",
"test-container-02", "test-container-02",
"fake-image2:latest", "fake-image2:latest",
false,
false,
time.Now(), time.Now(),
&dockerContainer.Config{ &container2.Config{
Labels: map[string]string{ Labels: map[string]string{
"com.centurylinklabs.watchtower.monitor-only": "true", "com.centurylinklabs.watchtower.monitor-only": "true",
}, },
}), }),
}, },
}, },
dockerClient,
false, false,
false, false,
) )
})
It("should not update those containers", func() {
_, err := actions.Update(client, types.UpdateParams{Cleanup: true}) _, err := actions.Update(client, types.UpdateParams{Cleanup: true})
Expect(err).NotTo(HaveOccurred()) Expect(err).NotTo(HaveOccurred())
Expect(client.TestData.TriedToRemoveImageCount).To(Equal(1)) Expect(client.TestData.TriedToRemoveImageCount).To(Equal(1))
@ -159,313 +128,33 @@ var _ = Describe("the update action", func() {
}) })
When("monitor only is set globally", func() { When("monitor only is set globally", func() {
BeforeEach(func() {
client = CreateMockClient(
&TestData{
Containers: []container.Container{
CreateMockContainer(
"test-container-01",
"test-container-01",
"fake-image:latest",
time.Now()),
CreateMockContainer(
"test-container-02",
"test-container-02",
"fake-image:latest",
time.Now()),
},
},
dockerClient,
false,
false,
)
})
It("should not update any containers", func() { It("should not update any containers", func() {
client := CreateMockClient( _, err := actions.Update(client, types.UpdateParams{MonitorOnly: true})
&TestData{
Containers: []types.Container{
CreateMockContainer(
"test-container-01",
"test-container-01",
"fake-image:latest",
time.Now()),
CreateMockContainer(
"test-container-02",
"test-container-02",
"fake-image:latest",
time.Now()),
},
},
false,
false,
)
_, err := actions.Update(client, types.UpdateParams{Cleanup: true, MonitorOnly: true})
Expect(err).NotTo(HaveOccurred()) Expect(err).NotTo(HaveOccurred())
Expect(client.TestData.TriedToRemoveImageCount).To(Equal(0)) Expect(client.TestData.TriedToRemoveImageCount).To(Equal(0))
}) })
When("watchtower has been instructed to have label take precedence", func() {
It("it should update containers when monitor only is set to false", func() {
client := CreateMockClient(
&TestData{
//NameOfContainerToKeep: "test-container-02",
Containers: []types.Container{
CreateMockContainerWithConfig(
"test-container-02",
"test-container-02",
"fake-image2:latest",
false,
false,
time.Now(),
&dockerContainer.Config{
Labels: map[string]string{
"com.centurylinklabs.watchtower.monitor-only": "false",
},
}),
},
},
false,
false,
)
_, err := actions.Update(client, types.UpdateParams{Cleanup: true, MonitorOnly: true, LabelPrecedence: true})
Expect(err).NotTo(HaveOccurred())
Expect(client.TestData.TriedToRemoveImageCount).To(Equal(1))
})
It("it should update not containers when monitor only is set to true", func() {
client := CreateMockClient(
&TestData{
//NameOfContainerToKeep: "test-container-02",
Containers: []types.Container{
CreateMockContainerWithConfig(
"test-container-02",
"test-container-02",
"fake-image2:latest",
false,
false,
time.Now(),
&dockerContainer.Config{
Labels: map[string]string{
"com.centurylinklabs.watchtower.monitor-only": "true",
},
}),
},
},
false,
false,
)
_, err := actions.Update(client, types.UpdateParams{Cleanup: true, MonitorOnly: true, LabelPrecedence: true})
Expect(err).NotTo(HaveOccurred())
Expect(client.TestData.TriedToRemoveImageCount).To(Equal(0))
})
It("it should update not containers when monitor only is not set", func() {
client := CreateMockClient(
&TestData{
Containers: []types.Container{
CreateMockContainer(
"test-container-01",
"test-container-01",
"fake-image:latest",
time.Now()),
},
},
false,
false,
)
_, err := actions.Update(client, types.UpdateParams{Cleanup: true, MonitorOnly: true, LabelPrecedence: true})
Expect(err).NotTo(HaveOccurred())
Expect(client.TestData.TriedToRemoveImageCount).To(Equal(0))
})
})
})
})
When("watchtower has been instructed to run lifecycle hooks", func() {
When("pre-update script returns 1", func() {
It("should not update those containers", func() {
client := CreateMockClient(
&TestData{
//NameOfContainerToKeep: "test-container-02",
Containers: []types.Container{
CreateMockContainerWithConfig(
"test-container-02",
"test-container-02",
"fake-image2:latest",
true,
false,
time.Now(),
&dockerContainer.Config{
Labels: map[string]string{
"com.centurylinklabs.watchtower.lifecycle.pre-update-timeout": "190",
"com.centurylinklabs.watchtower.lifecycle.pre-update": "/PreUpdateReturn1.sh",
},
ExposedPorts: map[nat.Port]struct{}{},
}),
},
},
false,
false,
)
_, err := actions.Update(client, types.UpdateParams{Cleanup: true, LifecycleHooks: true})
Expect(err).NotTo(HaveOccurred())
Expect(client.TestData.TriedToRemoveImageCount).To(Equal(0))
})
})
When("prupddate script returns 75", func() {
It("should not update those containers", func() {
client := CreateMockClient(
&TestData{
//NameOfContainerToKeep: "test-container-02",
Containers: []types.Container{
CreateMockContainerWithConfig(
"test-container-02",
"test-container-02",
"fake-image2:latest",
true,
false,
time.Now(),
&dockerContainer.Config{
Labels: map[string]string{
"com.centurylinklabs.watchtower.lifecycle.pre-update-timeout": "190",
"com.centurylinklabs.watchtower.lifecycle.pre-update": "/PreUpdateReturn75.sh",
},
ExposedPorts: map[nat.Port]struct{}{},
}),
},
},
false,
false,
)
_, err := actions.Update(client, types.UpdateParams{Cleanup: true, LifecycleHooks: true})
Expect(err).NotTo(HaveOccurred())
Expect(client.TestData.TriedToRemoveImageCount).To(Equal(0))
})
})
When("prupddate script returns 0", func() {
It("should update those containers", func() {
client := CreateMockClient(
&TestData{
//NameOfContainerToKeep: "test-container-02",
Containers: []types.Container{
CreateMockContainerWithConfig(
"test-container-02",
"test-container-02",
"fake-image2:latest",
true,
false,
time.Now(),
&dockerContainer.Config{
Labels: map[string]string{
"com.centurylinklabs.watchtower.lifecycle.pre-update-timeout": "190",
"com.centurylinklabs.watchtower.lifecycle.pre-update": "/PreUpdateReturn0.sh",
},
ExposedPorts: map[nat.Port]struct{}{},
}),
},
},
false,
false,
)
_, err := actions.Update(client, types.UpdateParams{Cleanup: true, LifecycleHooks: true})
Expect(err).NotTo(HaveOccurred())
Expect(client.TestData.TriedToRemoveImageCount).To(Equal(1))
})
})
When("container is linked to restarting containers", func() {
It("should be marked for restart", func() {
provider := CreateMockContainerWithConfig(
"test-container-provider",
"/test-container-provider",
"fake-image2:latest",
true,
false,
time.Now(),
&dockerContainer.Config{
Labels: map[string]string{},
ExposedPorts: map[nat.Port]struct{}{},
})
provider.SetStale(true)
consumer := CreateMockContainerWithConfig(
"test-container-consumer",
"/test-container-consumer",
"fake-image3:latest",
true,
false,
time.Now(),
&dockerContainer.Config{
Labels: map[string]string{
"com.centurylinklabs.watchtower.depends-on": "test-container-provider",
},
ExposedPorts: map[nat.Port]struct{}{},
})
containers := []types.Container{
provider,
consumer,
}
Expect(provider.ToRestart()).To(BeTrue())
Expect(consumer.ToRestart()).To(BeFalse())
actions.UpdateImplicitRestart(containers)
Expect(containers[0].ToRestart()).To(BeTrue())
Expect(containers[1].ToRestart()).To(BeTrue())
})
})
When("container is not running", func() {
It("skip running preupdate", func() {
client := CreateMockClient(
&TestData{
//NameOfContainerToKeep: "test-container-02",
Containers: []types.Container{
CreateMockContainerWithConfig(
"test-container-02",
"test-container-02",
"fake-image2:latest",
false,
false,
time.Now(),
&dockerContainer.Config{
Labels: map[string]string{
"com.centurylinklabs.watchtower.lifecycle.pre-update-timeout": "190",
"com.centurylinklabs.watchtower.lifecycle.pre-update": "/PreUpdateReturn1.sh",
},
ExposedPorts: map[nat.Port]struct{}{},
}),
},
},
false,
false,
)
_, err := actions.Update(client, types.UpdateParams{Cleanup: true, LifecycleHooks: true})
Expect(err).NotTo(HaveOccurred())
Expect(client.TestData.TriedToRemoveImageCount).To(Equal(1))
})
})
When("container is restarting", func() {
It("skip running preupdate", func() {
client := CreateMockClient(
&TestData{
//NameOfContainerToKeep: "test-container-02",
Containers: []types.Container{
CreateMockContainerWithConfig(
"test-container-02",
"test-container-02",
"fake-image2:latest",
false,
true,
time.Now(),
&dockerContainer.Config{
Labels: map[string]string{
"com.centurylinklabs.watchtower.lifecycle.pre-update-timeout": "190",
"com.centurylinklabs.watchtower.lifecycle.pre-update": "/PreUpdateReturn1.sh",
},
ExposedPorts: map[nat.Port]struct{}{},
}),
},
},
false,
false,
)
_, err := actions.Update(client, types.UpdateParams{Cleanup: true, LifecycleHooks: true})
Expect(err).NotTo(HaveOccurred())
Expect(client.TestData.TriedToRemoveImageCount).To(Equal(1))
})
}) })
}) })

View file

@ -1,11 +1,8 @@
package flags package flags
import ( import (
"bufio" "io/ioutil"
"errors"
"fmt"
"os" "os"
"regexp"
"strings" "strings"
"time" "time"
@ -19,14 +16,12 @@ import (
// use watchtower // use watchtower
const DockerAPIMinVersion string = "1.25" const DockerAPIMinVersion string = "1.25"
var defaultInterval = int((time.Hour * 24).Seconds())
// RegisterDockerFlags that are used directly by the docker api client // RegisterDockerFlags that are used directly by the docker api client
func RegisterDockerFlags(rootCmd *cobra.Command) { func RegisterDockerFlags(rootCmd *cobra.Command) {
flags := rootCmd.PersistentFlags() flags := rootCmd.PersistentFlags()
flags.StringP("host", "H", envString("DOCKER_HOST"), "daemon socket to connect to") flags.StringP("host", "H", viper.GetString("DOCKER_HOST"), "daemon socket to connect to")
flags.BoolP("tlsverify", "v", envBool("DOCKER_TLS_VERIFY"), "use TLS and verify the remote") flags.BoolP("tlsverify", "v", viper.GetBool("DOCKER_TLS_VERIFY"), "use TLS and verify the remote")
flags.StringP("api-version", "a", envString("DOCKER_API_VERSION"), "api version to use by docker client") flags.StringP("api-version", "a", viper.GetString("DOCKER_API_VERSION"), "api version to use by docker client")
} }
// RegisterSystemFlags that are used by watchtower to modify the program flow // RegisterSystemFlags that are used by watchtower to modify the program flow
@ -35,182 +30,138 @@ func RegisterSystemFlags(rootCmd *cobra.Command) {
flags.IntP( flags.IntP(
"interval", "interval",
"i", "i",
envInt("WATCHTOWER_POLL_INTERVAL"), viper.GetInt("WATCHTOWER_POLL_INTERVAL"),
"Poll interval (in seconds)") "poll interval (in seconds)")
flags.StringP( flags.StringP(
"schedule", "schedule",
"s", "s",
envString("WATCHTOWER_SCHEDULE"), viper.GetString("WATCHTOWER_SCHEDULE"),
"The cron expression which defines when to update") "the cron expression which defines when to update")
flags.DurationP( flags.DurationP(
"stop-timeout", "stop-timeout",
"t", "t",
envDuration("WATCHTOWER_TIMEOUT"), viper.GetDuration("WATCHTOWER_TIMEOUT"),
"Timeout before a container is forcefully stopped") "timeout before a container is forcefully stopped")
flags.BoolP( flags.BoolP(
"no-pull", "no-pull",
"", "",
envBool("WATCHTOWER_NO_PULL"), viper.GetBool("WATCHTOWER_NO_PULL"),
"Do not pull any new images") "do not pull any new images")
flags.BoolP( flags.BoolP(
"no-restart", "no-restart",
"", "",
envBool("WATCHTOWER_NO_RESTART"), viper.GetBool("WATCHTOWER_NO_RESTART"),
"Do not restart any containers") "do not restart any containers")
flags.BoolP( flags.BoolP(
"no-startup-message", "no-startup-message",
"", "",
envBool("WATCHTOWER_NO_STARTUP_MESSAGE"), viper.GetBool("WATCHTOWER_NO_STARTUP_MESSAGE"),
"Prevents watchtower from sending a startup message") "Prevents watchtower from sending a startup message")
flags.BoolP( flags.BoolP(
"cleanup", "cleanup",
"c", "c",
envBool("WATCHTOWER_CLEANUP"), viper.GetBool("WATCHTOWER_CLEANUP"),
"Remove previously used images after updating") "remove previously used images after updating")
flags.BoolP( flags.BoolP(
"remove-volumes", "remove-volumes",
"", "",
envBool("WATCHTOWER_REMOVE_VOLUMES"), viper.GetBool("WATCHTOWER_REMOVE_VOLUMES"),
"Remove attached volumes before updating") "remove attached volumes before updating")
flags.BoolP( flags.BoolP(
"label-enable", "label-enable",
"e", "e",
envBool("WATCHTOWER_LABEL_ENABLE"), viper.GetBool("WATCHTOWER_LABEL_ENABLE"),
"Watch containers where the com.centurylinklabs.watchtower.enable label is true") "watch containers where the com.centurylinklabs.watchtower.enable label is true")
flags.StringSliceP(
"disable-containers",
"x",
// Due to issue spf13/viper#380, can't use viper.GetStringSlice:
regexp.MustCompile("[, ]+").Split(envString("WATCHTOWER_DISABLE_CONTAINERS"), -1),
"Comma-separated list of containers to explicitly exclude from watching.")
flags.StringP(
"log-format",
"l",
viper.GetString("WATCHTOWER_LOG_FORMAT"),
"Sets what logging format to use for console output. Possible values: Auto, LogFmt, Pretty, JSON")
flags.BoolP( flags.BoolP(
"debug", "debug",
"d", "d",
envBool("WATCHTOWER_DEBUG"), viper.GetBool("WATCHTOWER_DEBUG"),
"Enable debug mode with verbose logging") "enable debug mode with verbose logging")
flags.BoolP( flags.BoolP(
"trace", "trace",
"", "",
envBool("WATCHTOWER_TRACE"), viper.GetBool("WATCHTOWER_TRACE"),
"Enable trace mode with very verbose logging - caution, exposes credentials") "enable trace mode with very verbose logging - caution, exposes credentials")
flags.BoolP( flags.BoolP(
"monitor-only", "monitor-only",
"m", "m",
envBool("WATCHTOWER_MONITOR_ONLY"), viper.GetBool("WATCHTOWER_MONITOR_ONLY"),
"Will only monitor for new images, not update the containers") "Will only monitor for new images, not update the containers")
flags.BoolP( flags.BoolP(
"run-once", "run-once",
"R", "R",
envBool("WATCHTOWER_RUN_ONCE"), viper.GetBool("WATCHTOWER_RUN_ONCE"),
"Run once now and exit") "Run once now and exit")
flags.BoolP( flags.BoolP(
"include-restarting", "include-restarting",
"", "",
envBool("WATCHTOWER_INCLUDE_RESTARTING"), viper.GetBool("WATCHTOWER_INCLUDE_RESTARTING"),
"Will also include restarting containers") "Will also include restarting containers")
flags.BoolP( flags.BoolP(
"include-stopped", "include-stopped",
"S", "S",
envBool("WATCHTOWER_INCLUDE_STOPPED"), viper.GetBool("WATCHTOWER_INCLUDE_STOPPED"),
"Will also include created and exited containers") "Will also include created and exited containers")
flags.BoolP( flags.BoolP(
"revive-stopped", "revive-stopped",
"", "",
envBool("WATCHTOWER_REVIVE_STOPPED"), viper.GetBool("WATCHTOWER_REVIVE_STOPPED"),
"Will also start stopped containers that were updated, if include-stopped is active") "Will also start stopped containers that were updated, if include-stopped is active")
flags.BoolP( flags.BoolP(
"enable-lifecycle-hooks", "enable-lifecycle-hooks",
"", "",
envBool("WATCHTOWER_LIFECYCLE_HOOKS"), viper.GetBool("WATCHTOWER_LIFECYCLE_HOOKS"),
"Enable the execution of commands triggered by pre- and post-update lifecycle hooks") "Enable the execution of commands triggered by pre- and post-update lifecycle hooks")
flags.BoolP( flags.BoolP(
"rolling-restart", "rolling-restart",
"", "",
envBool("WATCHTOWER_ROLLING_RESTART"), viper.GetBool("WATCHTOWER_ROLLING_RESTART"),
"Restart containers one at a time") "Restart containers one at a time")
flags.BoolP( flags.BoolP(
"http-api-update", "http-api-update",
"", "",
envBool("WATCHTOWER_HTTP_API_UPDATE"), viper.GetBool("WATCHTOWER_HTTP_API_UPDATE"),
"Runs Watchtower in HTTP API mode, so that image updates must to be triggered by a request") "Runs Watchtower in HTTP API mode, so that image updates must to be triggered by a request")
flags.BoolP( flags.BoolP(
"http-api-metrics", "http-api-metrics",
"", "",
envBool("WATCHTOWER_HTTP_API_METRICS"), viper.GetBool("WATCHTOWER_HTTP_API_METRICS"),
"Runs Watchtower with the Prometheus metrics API enabled") "Runs Watchtower with the Prometheus metrics API enabled")
flags.StringP( flags.StringP(
"http-api-token", "http-api-token",
"", "",
envString("WATCHTOWER_HTTP_API_TOKEN"), viper.GetString("WATCHTOWER_HTTP_API_TOKEN"),
"Sets an authentication token to HTTP API requests.") "Sets an authentication token to HTTP API requests.")
flags.BoolP(
"http-api-periodic-polls",
"",
envBool("WATCHTOWER_HTTP_API_PERIODIC_POLLS"),
"Also run periodic updates (specified with --interval and --schedule) if HTTP API is enabled")
// https://no-color.org/ // https://no-color.org/
flags.BoolP( flags.BoolP(
"no-color", "no-color",
"", "",
viper.IsSet("NO_COLOR"), viper.IsSet("NO_COLOR"),
"Disable ANSI color escape codes in log output") "Disable ANSI color escape codes in log output")
flags.StringP( flags.StringP(
"scope", "scope",
"", "",
envString("WATCHTOWER_SCOPE"), viper.GetString("WATCHTOWER_SCOPE"),
"Defines a monitoring scope for the Watchtower instance.") "Defines a monitoring scope for the Watchtower instance.")
flags.StringP(
"porcelain",
"P",
envString("WATCHTOWER_PORCELAIN"),
`Write session results to stdout using a stable versioned format. Supported values: "v1"`)
flags.String(
"log-level",
envString("WATCHTOWER_LOG_LEVEL"),
"The maximum log level that will be written to STDERR. Possible values: panic, fatal, error, warn, info, debug or trace")
flags.BoolP(
"health-check",
"",
false,
"Do health check and exit")
flags.BoolP(
"label-take-precedence",
"",
envBool("WATCHTOWER_LABEL_TAKE_PRECEDENCE"),
"Label applied to containers take precedence over arguments")
} }
// RegisterNotificationFlags that are used by watchtower to send notifications // RegisterNotificationFlags that are used by watchtower to send notifications
@ -220,216 +171,157 @@ func RegisterNotificationFlags(rootCmd *cobra.Command) {
flags.StringSliceP( flags.StringSliceP(
"notifications", "notifications",
"n", "n",
envStringSlice("WATCHTOWER_NOTIFICATIONS"), viper.GetStringSlice("WATCHTOWER_NOTIFICATIONS"),
" Notification types to send (valid: email, slack, msteams, gotify, shoutrrr)") " notification types to send (valid: email, slack, msteams, gotify, shoutrrr)")
flags.String(
"notifications-level",
envString("WATCHTOWER_NOTIFICATIONS_LEVEL"),
"The log level used for sending notifications. Possible values: panic, fatal, error, warn, info or debug")
flags.IntP(
"notifications-delay",
"",
envInt("WATCHTOWER_NOTIFICATIONS_DELAY"),
"Delay before sending notifications, expressed in seconds")
flags.StringP( flags.StringP(
"notifications-hostname", "notifications-level",
"", "",
envString("WATCHTOWER_NOTIFICATIONS_HOSTNAME"), viper.GetString("WATCHTOWER_NOTIFICATIONS_LEVEL"),
"Custom hostname for notification titles") "The log level used for sending notifications. Possible values: panic, fatal, error, warn, info or debug")
flags.StringP( flags.StringP(
"notification-email-from", "notification-email-from",
"", "",
envString("WATCHTOWER_NOTIFICATION_EMAIL_FROM"), viper.GetString("WATCHTOWER_NOTIFICATION_EMAIL_FROM"),
"Address to send notification emails from") "Address to send notification emails from")
flags.StringP( flags.StringP(
"notification-email-to", "notification-email-to",
"", "",
envString("WATCHTOWER_NOTIFICATION_EMAIL_TO"), viper.GetString("WATCHTOWER_NOTIFICATION_EMAIL_TO"),
"Address to send notification emails to") "Address to send notification emails to")
flags.IntP( flags.IntP(
"notification-email-delay", "notification-email-delay",
"", "",
envInt("WATCHTOWER_NOTIFICATION_EMAIL_DELAY"), viper.GetInt("WATCHTOWER_NOTIFICATION_EMAIL_DELAY"),
"Delay before sending notifications, expressed in seconds") "Delay before sending notifications, expressed in seconds")
flags.StringP( flags.StringP(
"notification-email-server", "notification-email-server",
"", "",
envString("WATCHTOWER_NOTIFICATION_EMAIL_SERVER"), viper.GetString("WATCHTOWER_NOTIFICATION_EMAIL_SERVER"),
"SMTP server to send notification emails through") "SMTP server to send notification emails through")
flags.IntP( flags.IntP(
"notification-email-server-port", "notification-email-server-port",
"", "",
envInt("WATCHTOWER_NOTIFICATION_EMAIL_SERVER_PORT"), viper.GetInt("WATCHTOWER_NOTIFICATION_EMAIL_SERVER_PORT"),
"SMTP server port to send notification emails through") "SMTP server port to send notification emails through")
flags.BoolP( flags.BoolP(
"notification-email-server-tls-skip-verify", "notification-email-server-tls-skip-verify",
"", "",
envBool("WATCHTOWER_NOTIFICATION_EMAIL_SERVER_TLS_SKIP_VERIFY"), viper.GetBool("WATCHTOWER_NOTIFICATION_EMAIL_SERVER_TLS_SKIP_VERIFY"),
`Controls whether watchtower verifies the SMTP server's certificate chain and host name. `Controls whether watchtower verifies the SMTP server's certificate chain and host name.
Should only be used for testing.`) Should only be used for testing.`)
flags.StringP( flags.StringP(
"notification-email-server-user", "notification-email-server-user",
"", "",
envString("WATCHTOWER_NOTIFICATION_EMAIL_SERVER_USER"), viper.GetString("WATCHTOWER_NOTIFICATION_EMAIL_SERVER_USER"),
"SMTP server user for sending notifications") "SMTP server user for sending notifications")
flags.StringP( flags.StringP(
"notification-email-server-password", "notification-email-server-password",
"", "",
envString("WATCHTOWER_NOTIFICATION_EMAIL_SERVER_PASSWORD"), viper.GetString("WATCHTOWER_NOTIFICATION_EMAIL_SERVER_PASSWORD"),
"SMTP server password for sending notifications") "SMTP server password for sending notifications")
flags.StringP( flags.StringP(
"notification-email-subjecttag", "notification-email-subjecttag",
"", "",
envString("WATCHTOWER_NOTIFICATION_EMAIL_SUBJECTTAG"), viper.GetString("WATCHTOWER_NOTIFICATION_EMAIL_SUBJECTTAG"),
"Subject prefix tag for notifications via mail") "Subject prefix tag for notifications via mail")
flags.StringP( flags.StringP(
"notification-slack-hook-url", "notification-slack-hook-url",
"", "",
envString("WATCHTOWER_NOTIFICATION_SLACK_HOOK_URL"), viper.GetString("WATCHTOWER_NOTIFICATION_SLACK_HOOK_URL"),
"The Slack Hook URL to send notifications to") "The Slack Hook URL to send notifications to")
flags.StringP( flags.StringP(
"notification-slack-identifier", "notification-slack-identifier",
"", "",
envString("WATCHTOWER_NOTIFICATION_SLACK_IDENTIFIER"), viper.GetString("WATCHTOWER_NOTIFICATION_SLACK_IDENTIFIER"),
"A string which will be used to identify the messages coming from this watchtower instance") "A string which will be used to identify the messages coming from this watchtower instance")
flags.StringP( flags.StringP(
"notification-slack-channel", "notification-slack-channel",
"", "",
envString("WATCHTOWER_NOTIFICATION_SLACK_CHANNEL"), viper.GetString("WATCHTOWER_NOTIFICATION_SLACK_CHANNEL"),
"A string which overrides the webhook's default channel. Example: #my-custom-channel") "A string which overrides the webhook's default channel. Example: #my-custom-channel")
flags.StringP( flags.StringP(
"notification-slack-icon-emoji", "notification-slack-icon-emoji",
"", "",
envString("WATCHTOWER_NOTIFICATION_SLACK_ICON_EMOJI"), viper.GetString("WATCHTOWER_NOTIFICATION_SLACK_ICON_EMOJI"),
"An emoji code string to use in place of the default icon") "An emoji code string to use in place of the default icon")
flags.StringP( flags.StringP(
"notification-slack-icon-url", "notification-slack-icon-url",
"", "",
envString("WATCHTOWER_NOTIFICATION_SLACK_ICON_URL"), viper.GetString("WATCHTOWER_NOTIFICATION_SLACK_ICON_URL"),
"An icon image URL string to use in place of the default icon") "An icon image URL string to use in place of the default icon")
flags.StringP( flags.StringP(
"notification-msteams-hook", "notification-msteams-hook",
"", "",
envString("WATCHTOWER_NOTIFICATION_MSTEAMS_HOOK_URL"), viper.GetString("WATCHTOWER_NOTIFICATION_MSTEAMS_HOOK_URL"),
"The MSTeams WebHook URL to send notifications to") "The MSTeams WebHook URL to send notifications to")
flags.BoolP( flags.BoolP(
"notification-msteams-data", "notification-msteams-data",
"", "",
envBool("WATCHTOWER_NOTIFICATION_MSTEAMS_USE_LOG_DATA"), viper.GetBool("WATCHTOWER_NOTIFICATION_MSTEAMS_USE_LOG_DATA"),
"The MSTeams notifier will try to extract log entry fields as MSTeams message facts") "The MSTeams notifier will try to extract log entry fields as MSTeams message facts")
flags.StringP( flags.StringP(
"notification-gotify-url", "notification-gotify-url",
"", "",
envString("WATCHTOWER_NOTIFICATION_GOTIFY_URL"), viper.GetString("WATCHTOWER_NOTIFICATION_GOTIFY_URL"),
"The Gotify URL to send notifications to") "The Gotify URL to send notifications to")
flags.StringP( flags.StringP(
"notification-gotify-token", "notification-gotify-token",
"", "",
envString("WATCHTOWER_NOTIFICATION_GOTIFY_TOKEN"), viper.GetString("WATCHTOWER_NOTIFICATION_GOTIFY_TOKEN"),
"The Gotify Application required to query the Gotify API") "The Gotify Application required to query the Gotify API")
flags.BoolP( flags.BoolP(
"notification-gotify-tls-skip-verify", "notification-gotify-tls-skip-verify",
"", "",
envBool("WATCHTOWER_NOTIFICATION_GOTIFY_TLS_SKIP_VERIFY"), viper.GetBool("WATCHTOWER_NOTIFICATION_GOTIFY_TLS_SKIP_VERIFY"),
`Controls whether watchtower verifies the Gotify server's certificate chain and host name. `Controls whether watchtower verifies the Gotify server's certificate chain and host name.
Should only be used for testing.`) Should only be used for testing.`)
flags.String( flags.StringP(
"notification-template", "notification-template",
envString("WATCHTOWER_NOTIFICATION_TEMPLATE"), "",
viper.GetString("WATCHTOWER_NOTIFICATION_TEMPLATE"),
"The shoutrrr text/template for the messages") "The shoutrrr text/template for the messages")
flags.StringArray( flags.StringArrayP(
"notification-url", "notification-url",
envStringSlice("WATCHTOWER_NOTIFICATION_URL"),
"The shoutrrr URL to send notifications to")
flags.Bool("notification-report",
envBool("WATCHTOWER_NOTIFICATION_REPORT"),
"Use the session report as the notification template data")
flags.StringP(
"notification-title-tag",
"", "",
envString("WATCHTOWER_NOTIFICATION_TITLE_TAG"), viper.GetStringSlice("WATCHTOWER_NOTIFICATION_URL"),
"Title prefix tag for notifications") "The shoutrrr URL to send notifications to")
flags.Bool("notification-skip-title",
envBool("WATCHTOWER_NOTIFICATION_SKIP_TITLE"),
"Do not pass the title param to notifications")
flags.String(
"warn-on-head-failure",
envString("WATCHTOWER_WARN_ON_HEAD_FAILURE"),
"When to warn about HEAD pull requests failing. Possible values: always, auto or never")
flags.Bool(
"notification-log-stdout",
envBool("WATCHTOWER_NOTIFICATION_LOG_STDOUT"),
"Write notification logs to stdout instead of logging (to stderr)")
}
func envString(key string) string {
viper.MustBindEnv(key)
return viper.GetString(key)
}
func envStringSlice(key string) []string {
viper.MustBindEnv(key)
return viper.GetStringSlice(key)
}
func envInt(key string) int {
viper.MustBindEnv(key)
return viper.GetInt(key)
}
func envBool(key string) bool {
viper.MustBindEnv(key)
return viper.GetBool(key)
}
func envDuration(key string) time.Duration {
viper.MustBindEnv(key)
return viper.GetDuration(key)
} }
// SetDefaults provides default values for environment variables // SetDefaults provides default values for environment variables
func SetDefaults() { func SetDefaults() {
day := (time.Hour * 24).Seconds()
viper.AutomaticEnv() viper.AutomaticEnv()
viper.SetDefault("DOCKER_HOST", "unix:///var/run/docker.sock") viper.SetDefault("DOCKER_HOST", "unix:///var/run/docker.sock")
viper.SetDefault("DOCKER_API_VERSION", DockerAPIMinVersion) viper.SetDefault("DOCKER_API_VERSION", DockerAPIMinVersion)
viper.SetDefault("WATCHTOWER_POLL_INTERVAL", defaultInterval) viper.SetDefault("WATCHTOWER_POLL_INTERVAL", day)
viper.SetDefault("WATCHTOWER_TIMEOUT", time.Second*10) viper.SetDefault("WATCHTOWER_TIMEOUT", time.Second*10)
viper.SetDefault("WATCHTOWER_NOTIFICATIONS", []string{}) viper.SetDefault("WATCHTOWER_NOTIFICATIONS", []string{})
viper.SetDefault("WATCHTOWER_NOTIFICATIONS_LEVEL", "info") viper.SetDefault("WATCHTOWER_NOTIFICATIONS_LEVEL", "info")
viper.SetDefault("WATCHTOWER_NOTIFICATION_EMAIL_SERVER_PORT", 25) viper.SetDefault("WATCHTOWER_NOTIFICATION_EMAIL_SERVER_PORT", 25)
viper.SetDefault("WATCHTOWER_NOTIFICATION_EMAIL_SUBJECTTAG", "") viper.SetDefault("WATCHTOWER_NOTIFICATION_EMAIL_SUBJECTTAG", "")
viper.SetDefault("WATCHTOWER_NOTIFICATION_SLACK_IDENTIFIER", "watchtower") viper.SetDefault("WATCHTOWER_NOTIFICATION_SLACK_IDENTIFIER", "watchtower")
viper.SetDefault("WATCHTOWER_LOG_LEVEL", "info")
viper.SetDefault("WATCHTOWER_LOG_FORMAT", "auto")
} }
// EnvConfig translates the command-line options into environment variables // EnvConfig translates the command-line options into environment variables
@ -517,191 +409,34 @@ func GetSecretsFromFiles(rootCmd *cobra.Command) {
"notification-slack-hook-url", "notification-slack-hook-url",
"notification-msteams-hook", "notification-msteams-hook",
"notification-gotify-token", "notification-gotify-token",
"notification-url",
"http-api-token",
} }
for _, secret := range secrets { for _, secret := range secrets {
if err := getSecretFromFile(flags, secret); err != nil { getSecretFromFile(flags, secret)
log.Fatalf("failed to get secret from flag %v: %s", secret, err)
}
} }
} }
// getSecretFromFile will check if the flag contains a reference to a file; if it does, replaces the value of the flag with the contents of the file. // getSecretFromFile will check if the flag contains a reference to a file; if it does, replaces the value of the flag with the contents of the file.
func getSecretFromFile(flags *pflag.FlagSet, secret string) error { func getSecretFromFile(flags *pflag.FlagSet, secret string) {
flag := flags.Lookup(secret) value, err := flags.GetString(secret)
if sliceValue, ok := flag.Value.(pflag.SliceValue); ok { if err != nil {
oldValues := sliceValue.GetSlice() log.Error(err)
values := make([]string, 0, len(oldValues))
for _, value := range oldValues {
if value != "" && isFile(value) {
file, err := os.Open(value)
if err != nil {
return err
}
scanner := bufio.NewScanner(file)
for scanner.Scan() {
line := scanner.Text()
if line == "" {
continue
}
values = append(values, line)
}
if err := file.Close(); err != nil {
return err
}
} else {
values = append(values, value)
}
}
return sliceValue.Replace(values)
} }
value := flag.Value.String()
if value != "" && isFile(value) { if value != "" && isFile(value) {
content, err := os.ReadFile(value) file, err := ioutil.ReadFile(value)
if err != nil { if err != nil {
return err log.Fatal(err)
}
err = flags.Set(secret, strings.TrimSpace(string(file)))
if err != nil {
log.Error(err)
} }
return flags.Set(secret, strings.TrimSpace(string(content)))
} }
return nil
} }
func isFile(s string) bool { func isFile(s string) bool {
firstColon := strings.IndexRune(s, ':') _, err := os.Stat(s)
if firstColon != 1 && firstColon != -1 { if os.IsNotExist(err) {
// If the string contains a ':', but it's not the second character, it's probably not a file
// and will cause a fatal error on windows if stat'ed
// This still allows for paths that start with 'c:\' etc.
return false return false
} }
_, err := os.Stat(s) return true
return !errors.Is(err, os.ErrNotExist)
}
// ProcessFlagAliases updates the value of flags that are being set by helper flags
func ProcessFlagAliases(flags *pflag.FlagSet) {
porcelain, err := flags.GetString(`porcelain`)
if err != nil {
log.Fatalf(`Failed to get flag: %v`, err)
}
if porcelain != "" {
if porcelain != "v1" {
log.Fatalf(`Unknown porcelain version %q. Supported values: "v1"`, porcelain)
}
if err = appendFlagValue(flags, `notification-url`, `logger://`); err != nil {
log.Errorf(`Failed to set flag: %v`, err)
}
setFlagIfDefault(flags, `notification-log-stdout`, `true`)
setFlagIfDefault(flags, `notification-report`, `true`)
tpl := fmt.Sprintf(`porcelain.%s.summary-no-log`, porcelain)
setFlagIfDefault(flags, `notification-template`, tpl)
}
scheduleChanged := flags.Changed(`schedule`)
intervalChanged := flags.Changed(`interval`)
// FIXME: snakeswap
// due to how viper is integrated by swapping the defaults for the flags, we need this hack:
if val, _ := flags.GetString(`schedule`); val != `` {
scheduleChanged = true
}
if val, _ := flags.GetInt(`interval`); val != defaultInterval {
intervalChanged = true
}
if intervalChanged && scheduleChanged {
log.Fatal(`Only schedule or interval can be defined, not both.`)
}
// update schedule flag to match interval if it's set, or to the default if none of them are
if intervalChanged || !scheduleChanged {
interval, _ := flags.GetInt(`interval`)
_ = flags.Set(`schedule`, fmt.Sprintf(`@every %ds`, interval))
}
if flagIsEnabled(flags, `debug`) {
_ = flags.Set(`log-level`, `debug`)
}
if flagIsEnabled(flags, `trace`) {
_ = flags.Set(`log-level`, `trace`)
}
}
// SetupLogging reads only the flags that is needed to set up logging and applies them to the global logger
func SetupLogging(f *pflag.FlagSet) error {
logFormat, _ := f.GetString(`log-format`)
noColor, _ := f.GetBool("no-color")
switch strings.ToLower(logFormat) {
case "auto":
// This will either use the "pretty" or "logfmt" format, based on whether the standard out is connected to a TTY
log.SetFormatter(&log.TextFormatter{
DisableColors: noColor,
// enable logrus built-in support for https://bixense.com/clicolors/
EnvironmentOverrideColors: true,
})
case "json":
log.SetFormatter(&log.JSONFormatter{})
case "logfmt":
log.SetFormatter(&log.TextFormatter{
DisableColors: true,
FullTimestamp: true,
})
case "pretty":
log.SetFormatter(&log.TextFormatter{
// "Pretty" format combined with `--no-color` will only change the timestamp to the time since start
ForceColors: !noColor,
FullTimestamp: false,
})
default:
return fmt.Errorf("invalid log format: %s", logFormat)
}
rawLogLevel, _ := f.GetString(`log-level`)
if logLevel, err := log.ParseLevel(rawLogLevel); err != nil {
return fmt.Errorf("invalid log level: %e", err)
} else {
log.SetLevel(logLevel)
}
return nil
}
func flagIsEnabled(flags *pflag.FlagSet, name string) bool {
value, err := flags.GetBool(name)
if err != nil {
log.Fatalf(`The flag %q is not defined`, name)
}
return value
}
func appendFlagValue(flags *pflag.FlagSet, name string, values ...string) error {
flag := flags.Lookup(name)
if flag == nil {
return fmt.Errorf(`invalid flag name %q`, name)
}
if flagValues, ok := flag.Value.(pflag.SliceValue); ok {
for _, value := range values {
_ = flagValues.Append(value)
}
} else {
return fmt.Errorf(`the value for flag %q is not a slice value`, name)
}
return nil
}
func setFlagIfDefault(flags *pflag.FlagSet, name string, value string) {
if flags.Changed(name) {
return
}
if err := flags.Set(name, value); err != nil {
log.Errorf(`Failed to set flag: %v`, err)
}
} }

View file

@ -1,23 +1,16 @@
package flags package flags
import ( import (
"io/ioutil"
"os" "os"
"strings"
"testing" "testing"
"github.com/sirupsen/logrus"
"github.com/spf13/cobra" "github.com/spf13/cobra"
"github.com/spf13/pflag"
"github.com/spf13/viper"
"github.com/stretchr/testify/assert" "github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require" "github.com/stretchr/testify/require"
) )
func TestEnvConfig_Defaults(t *testing.T) { func TestEnvConfig_Defaults(t *testing.T) {
// Unset testing environments own variables, since those are not what is under test
_ = os.Unsetenv("DOCKER_TLS_VERIFY")
_ = os.Unsetenv("DOCKER_HOST")
cmd := new(cobra.Command) cmd := new(cobra.Command)
SetDefaults() SetDefaults()
RegisterDockerFlags(cmd) RegisterDockerFlags(cmd)
@ -50,7 +43,9 @@ func TestEnvConfig_Custom(t *testing.T) {
func TestGetSecretsFromFilesWithString(t *testing.T) { func TestGetSecretsFromFilesWithString(t *testing.T) {
value := "supersecretstring" value := "supersecretstring"
t.Setenv("WATCHTOWER_NOTIFICATION_EMAIL_SERVER_PASSWORD", value)
err := os.Setenv("WATCHTOWER_NOTIFICATION_EMAIL_SERVER_PASSWORD", value)
require.NoError(t, err)
testGetSecretsFromFiles(t, "notification-email-server-password", value) testGetSecretsFromFiles(t, "notification-email-server-password", value)
} }
@ -59,281 +54,28 @@ func TestGetSecretsFromFilesWithFile(t *testing.T) {
value := "megasecretstring" value := "megasecretstring"
// Create the temporary file which will contain a secret. // Create the temporary file which will contain a secret.
file, err := os.CreateTemp(t.TempDir(), "watchtower-") file, err := ioutil.TempFile(os.TempDir(), "watchtower-")
require.NoError(t, err) require.NoError(t, err)
defer os.Remove(file.Name()) // Make sure to remove the temporary file later.
// Write the secret to the temporary file. // Write the secret to the temporary file.
_, err = file.Write([]byte(value)) secret := []byte(value)
_, err = file.Write(secret)
require.NoError(t, err) require.NoError(t, err)
require.NoError(t, file.Close())
t.Setenv("WATCHTOWER_NOTIFICATION_EMAIL_SERVER_PASSWORD", file.Name()) err = os.Setenv("WATCHTOWER_NOTIFICATION_EMAIL_SERVER_PASSWORD", file.Name())
require.NoError(t, err)
testGetSecretsFromFiles(t, "notification-email-server-password", value) testGetSecretsFromFiles(t, "notification-email-server-password", value)
} }
func TestGetSliceSecretsFromFiles(t *testing.T) { func testGetSecretsFromFiles(t *testing.T, flagName string, expected string) {
values := []string{"entry2", "", "entry3"}
// Create the temporary file which will contain a secret.
file, err := os.CreateTemp(t.TempDir(), "watchtower-")
require.NoError(t, err)
// Write the secret to the temporary file.
for _, value := range values {
_, err = file.WriteString("\n" + value)
require.NoError(t, err)
}
require.NoError(t, file.Close())
testGetSecretsFromFiles(t, "notification-url", `[entry1,entry2,entry3]`,
`--notification-url`, "entry1",
`--notification-url`, file.Name())
}
func testGetSecretsFromFiles(t *testing.T, flagName string, expected string, args ...string) {
cmd := new(cobra.Command) cmd := new(cobra.Command)
SetDefaults() SetDefaults()
RegisterSystemFlags(cmd)
RegisterNotificationFlags(cmd) RegisterNotificationFlags(cmd)
require.NoError(t, cmd.ParseFlags(args))
GetSecretsFromFiles(cmd) GetSecretsFromFiles(cmd)
flag := cmd.PersistentFlags().Lookup(flagName) value, err := cmd.PersistentFlags().GetString(flagName)
require.NotNil(t, flag) require.NoError(t, err)
value := flag.Value.String()
assert.Equal(t, expected, value) assert.Equal(t, expected, value)
} }
func TestHTTPAPIPeriodicPollsFlag(t *testing.T) {
cmd := new(cobra.Command)
SetDefaults()
RegisterDockerFlags(cmd)
RegisterSystemFlags(cmd)
err := cmd.ParseFlags([]string{"--http-api-periodic-polls"})
require.NoError(t, err)
periodicPolls, err := cmd.PersistentFlags().GetBool("http-api-periodic-polls")
require.NoError(t, err)
assert.Equal(t, true, periodicPolls)
}
func TestIsFile(t *testing.T) {
assert.False(t, isFile("https://google.com"), "an URL should never be considered a file")
assert.True(t, isFile(os.Args[0]), "the currently running binary path should always be considered a file")
}
func TestProcessFlagAliases(t *testing.T) {
logrus.StandardLogger().ExitFunc = func(_ int) { t.FailNow() }
cmd := new(cobra.Command)
SetDefaults()
RegisterDockerFlags(cmd)
RegisterSystemFlags(cmd)
RegisterNotificationFlags(cmd)
require.NoError(t, cmd.ParseFlags([]string{
`--porcelain`, `v1`,
`--interval`, `10`,
`--trace`,
}))
flags := cmd.Flags()
ProcessFlagAliases(flags)
urls, _ := flags.GetStringArray(`notification-url`)
assert.Contains(t, urls, `logger://`)
logStdout, _ := flags.GetBool(`notification-log-stdout`)
assert.True(t, logStdout)
report, _ := flags.GetBool(`notification-report`)
assert.True(t, report)
template, _ := flags.GetString(`notification-template`)
assert.Equal(t, `porcelain.v1.summary-no-log`, template)
sched, _ := flags.GetString(`schedule`)
assert.Equal(t, `@every 10s`, sched)
logLevel, _ := flags.GetString(`log-level`)
assert.Equal(t, `trace`, logLevel)
}
func TestProcessFlagAliasesLogLevelFromEnvironment(t *testing.T) {
cmd := new(cobra.Command)
t.Setenv("WATCHTOWER_DEBUG", `true`)
SetDefaults()
RegisterDockerFlags(cmd)
RegisterSystemFlags(cmd)
RegisterNotificationFlags(cmd)
require.NoError(t, cmd.ParseFlags([]string{}))
flags := cmd.Flags()
ProcessFlagAliases(flags)
logLevel, _ := flags.GetString(`log-level`)
assert.Equal(t, `debug`, logLevel)
}
func TestLogFormatFlag(t *testing.T) {
cmd := new(cobra.Command)
SetDefaults()
RegisterDockerFlags(cmd)
RegisterSystemFlags(cmd)
// Ensure the default value is Auto
require.NoError(t, cmd.ParseFlags([]string{}))
require.NoError(t, SetupLogging(cmd.Flags()))
assert.IsType(t, &logrus.TextFormatter{}, logrus.StandardLogger().Formatter)
// Test JSON format
require.NoError(t, cmd.ParseFlags([]string{`--log-format`, `JSON`}))
require.NoError(t, SetupLogging(cmd.Flags()))
assert.IsType(t, &logrus.JSONFormatter{}, logrus.StandardLogger().Formatter)
// Test Pretty format
require.NoError(t, cmd.ParseFlags([]string{`--log-format`, `pretty`}))
require.NoError(t, SetupLogging(cmd.Flags()))
assert.IsType(t, &logrus.TextFormatter{}, logrus.StandardLogger().Formatter)
textFormatter, ok := (logrus.StandardLogger().Formatter).(*logrus.TextFormatter)
assert.True(t, ok)
assert.True(t, textFormatter.ForceColors)
assert.False(t, textFormatter.FullTimestamp)
// Test LogFmt format
require.NoError(t, cmd.ParseFlags([]string{`--log-format`, `logfmt`}))
require.NoError(t, SetupLogging(cmd.Flags()))
textFormatter, ok = (logrus.StandardLogger().Formatter).(*logrus.TextFormatter)
assert.True(t, ok)
assert.True(t, textFormatter.DisableColors)
assert.True(t, textFormatter.FullTimestamp)
// Test invalid format
require.NoError(t, cmd.ParseFlags([]string{`--log-format`, `cowsay`}))
require.Error(t, SetupLogging(cmd.Flags()))
}
func TestLogLevelFlag(t *testing.T) {
cmd := new(cobra.Command)
SetDefaults()
RegisterDockerFlags(cmd)
RegisterSystemFlags(cmd)
// Test invalid format
require.NoError(t, cmd.ParseFlags([]string{`--log-level`, `gossip`}))
require.Error(t, SetupLogging(cmd.Flags()))
}
func TestProcessFlagAliasesSchedAndInterval(t *testing.T) {
logrus.StandardLogger().ExitFunc = func(_ int) { panic(`FATAL`) }
cmd := new(cobra.Command)
SetDefaults()
RegisterDockerFlags(cmd)
RegisterSystemFlags(cmd)
RegisterNotificationFlags(cmd)
require.NoError(t, cmd.ParseFlags([]string{`--schedule`, `@hourly`, `--interval`, `10`}))
flags := cmd.Flags()
assert.PanicsWithValue(t, `FATAL`, func() {
ProcessFlagAliases(flags)
})
}
func TestProcessFlagAliasesScheduleFromEnvironment(t *testing.T) {
cmd := new(cobra.Command)
t.Setenv("WATCHTOWER_SCHEDULE", `@hourly`)
SetDefaults()
RegisterDockerFlags(cmd)
RegisterSystemFlags(cmd)
RegisterNotificationFlags(cmd)
require.NoError(t, cmd.ParseFlags([]string{}))
flags := cmd.Flags()
ProcessFlagAliases(flags)
sched, _ := flags.GetString(`schedule`)
assert.Equal(t, `@hourly`, sched)
}
func TestProcessFlagAliasesInvalidPorcelaineVersion(t *testing.T) {
logrus.StandardLogger().ExitFunc = func(_ int) { panic(`FATAL`) }
cmd := new(cobra.Command)
SetDefaults()
RegisterDockerFlags(cmd)
RegisterSystemFlags(cmd)
RegisterNotificationFlags(cmd)
require.NoError(t, cmd.ParseFlags([]string{`--porcelain`, `cowboy`}))
flags := cmd.Flags()
assert.PanicsWithValue(t, `FATAL`, func() {
ProcessFlagAliases(flags)
})
}
func TestFlagsArePrecentInDocumentation(t *testing.T) {
// Legacy notifcations are ignored, since they are (soft) deprecated
ignoredEnvs := map[string]string{
"WATCHTOWER_NOTIFICATION_SLACK_ICON_EMOJI": "legacy",
"WATCHTOWER_NOTIFICATION_SLACK_ICON_URL": "legacy",
}
ignoredFlags := map[string]string{
"notification-gotify-url": "legacy",
"notification-slack-icon-emoji": "legacy",
"notification-slack-icon-url": "legacy",
}
cmd := new(cobra.Command)
SetDefaults()
RegisterDockerFlags(cmd)
RegisterSystemFlags(cmd)
RegisterNotificationFlags(cmd)
flags := cmd.PersistentFlags()
docFiles := []string{
"../../docs/arguments.md",
"../../docs/lifecycle-hooks.md",
"../../docs/notifications.md",
}
allDocs := ""
for _, f := range docFiles {
bytes, err := os.ReadFile(f)
if err != nil {
t.Fatalf("Could not load docs file %q: %v", f, err)
}
allDocs += string(bytes)
}
flags.VisitAll(func(f *pflag.Flag) {
if !strings.Contains(allDocs, "--"+f.Name) {
if _, found := ignoredFlags[f.Name]; !found {
t.Logf("Docs does not mention flag long name %q", f.Name)
t.Fail()
}
}
if !strings.Contains(allDocs, "-"+f.Shorthand) {
t.Logf("Docs does not mention flag shorthand %q (%q)", f.Shorthand, f.Name)
t.Fail()
}
})
for _, key := range viper.AllKeys() {
envKey := strings.ToUpper(key)
if !strings.Contains(allDocs, envKey) {
if _, found := ignoredEnvs[envKey]; !found {
t.Logf("Docs does not mention environment variable %q", envKey)
t.Fail()
}
}
}
}

View file

@ -1,13 +0,0 @@
package meta
var (
// Version is the compile-time set version of Watchtower
Version = "v0.0.0-unknown"
// UserAgent is the http client identifier derived from Version
UserAgent string
)
func init() {
UserAgent = "Watchtower/" + Version
}

View file

@ -1,24 +0,0 @@
package util
import (
"bytes"
"crypto/rand"
"fmt"
)
// GenerateRandomSHA256 generates a random 64 character SHA 256 hash string
func GenerateRandomSHA256() string {
return GenerateRandomPrefixedSHA256()[7:]
}
// GenerateRandomPrefixedSHA256 generates a random 64 character SHA 256 hash string, prefixed with `sha256:`
func GenerateRandomPrefixedSHA256() string {
hash := make([]byte, 32)
_, _ = rand.Read(hash)
sb := bytes.NewBufferString("sha256:")
sb.Grow(64)
for _, h := range hash {
_, _ = fmt.Fprintf(sb, "%02x", h)
}
return sb.String()
}

View file

@ -1,10 +1,8 @@
package util package util
import ( import (
"regexp"
"testing"
"github.com/stretchr/testify/assert" "github.com/stretchr/testify/assert"
"testing"
) )
func TestSliceEqual_True(t *testing.T) { func TestSliceEqual_True(t *testing.T) {
@ -64,15 +62,3 @@ func TestStructMapSubtract(t *testing.T) {
assert.Equal(t, map[string]struct{}{"a": x, "b": x, "c": x}, m1) assert.Equal(t, map[string]struct{}{"a": x, "b": x, "c": x}, m1)
assert.Equal(t, map[string]struct{}{"a": x, "c": x}, m2) assert.Equal(t, map[string]struct{}{"a": x, "c": x}, m2)
} }
// GenerateRandomSHA256 generates a random 64 character SHA 256 hash string
func TestGenerateRandomSHA256(t *testing.T) {
res := GenerateRandomSHA256()
assert.Len(t, res, 64)
assert.NotContains(t, res, "sha256:")
}
func TestGenerateRandomPrefixedSHA256(t *testing.T) {
res := GenerateRandomPrefixedSHA256()
assert.Regexp(t, regexp.MustCompile("sha256:[0-9|a-f]{64}"), res)
}

View file

@ -1,20 +1,11 @@
site_name: Watchtower site_name: Watchtower
site_url: https://containrrr.dev/watchtower/ site_url: http://containrrr.github.io/watchtower/
repo_url: https://github.com/containrrr/watchtower/ repo_url: https://github.com/containrrr/watchtower/
edit_uri: edit/main/docs/ edit_uri: edit/main/docs/index.md
theme: theme:
name: 'material' name: 'material'
palette: palette:
- media: "(prefers-color-scheme: light)" scheme: containrrr
scheme: containrrr
toggle:
icon: material/weather-night
name: Switch to dark mode
- media: "(prefers-color-scheme: dark)"
scheme: containrrr-dark
toggle:
icon: material/weather-sunny
name: Switch to light mode
logo: images/logo-450px.png logo: images/logo-450px.png
favicon: images/favicon.ico favicon: images/favicon.ico
extra_css: extra_css:
@ -23,17 +14,7 @@ markdown_extensions:
- toc: - toc:
permalink: True permalink: True
separator: "_" separator: "_"
- admonition - codehilite
- pymdownx.highlight
- pymdownx.superfences
- pymdownx.magiclink:
repo_url_shortener: True
provider: github
user: containrrr
repo: watchtower
- pymdownx.saneheaders
- pymdownx.tabbed:
alternate_style: true
nav: nav:
- 'Home': 'index.md' - 'Home': 'index.md'
- 'Introduction': 'introduction.md' - 'Introduction': 'introduction.md'
@ -48,7 +29,6 @@ nav:
- 'Stop signals': 'stop-signals.md' - 'Stop signals': 'stop-signals.md'
- 'Lifecycle hooks': 'lifecycle-hooks.md' - 'Lifecycle hooks': 'lifecycle-hooks.md'
- 'Running multiple instances': 'running-multiple-instances.md' - 'Running multiple instances': 'running-multiple-instances.md'
- 'HTTP API Mode': 'http-api-mode.md'
- 'Metrics': 'metrics.md' - 'Metrics': 'metrics.md'
plugins: plugins:
- search - search

Binary file not shown.

View file

@ -2,9 +2,8 @@ package api
import ( import (
"fmt" "fmt"
"net/http"
log "github.com/sirupsen/logrus" log "github.com/sirupsen/logrus"
"net/http"
) )
const tokenMissingMsg = "api token is empty or has not been set. exiting" const tokenMissingMsg = "api token is empty or has not been set. exiting"
@ -26,10 +25,9 @@ func New(token string) *API {
// RequireToken is wrapper around http.HandleFunc that checks token validity // RequireToken is wrapper around http.HandleFunc that checks token validity
func (api *API) RequireToken(fn http.HandlerFunc) http.HandlerFunc { func (api *API) RequireToken(fn http.HandlerFunc) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) { return func(w http.ResponseWriter, r *http.Request) {
auth := r.Header.Get("Authorization") if r.Header.Get("Authorization") != fmt.Sprintf("Bearer %s", api.Token) {
want := fmt.Sprintf("Bearer %s", api.Token) log.Errorf("Invalid token \"%s\"", r.Header.Get("Authorization"))
if auth != want { log.Debugf("Expected token to be \"%s\"", api.Token)
w.WriteHeader(http.StatusUnauthorized)
return return
} }
log.Debug("Valid token found.") log.Debug("Valid token found.")
@ -61,6 +59,7 @@ func (api *API) Start(block bool) error {
log.Fatal(tokenMissingMsg) log.Fatal(tokenMissingMsg)
} }
log.Info("Watchtower HTTP API started.")
if block { if block {
runHTTPServer() runHTTPServer()
} else { } else {
@ -72,5 +71,6 @@ func (api *API) Start(block bool) error {
} }
func runHTTPServer() { func runHTTPServer() {
log.Info("Serving HTTP")
log.Fatal(http.ListenAndServe(":8080", nil)) log.Fatal(http.ListenAndServe(":8080", nil))
} }

View file

@ -1,65 +0,0 @@
package api
import (
"io"
"net/http"
"net/http/httptest"
"testing"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
)
const (
token = "123123123"
)
func TestAPI(t *testing.T) {
RegisterFailHandler(Fail)
RunSpecs(t, "API Suite")
}
var _ = Describe("API", func() {
api := New(token)
Describe("RequireToken middleware", func() {
It("should return 401 Unauthorized when token is not provided", func() {
handlerFunc := api.RequireToken(testHandler)
rec := httptest.NewRecorder()
req := httptest.NewRequest("GET", "/hello", nil)
handlerFunc(rec, req)
Expect(rec.Code).To(Equal(http.StatusUnauthorized))
})
It("should return 401 Unauthorized when token is invalid", func() {
handlerFunc := api.RequireToken(testHandler)
rec := httptest.NewRecorder()
req := httptest.NewRequest("GET", "/hello", nil)
req.Header.Set("Authorization", "Bearer 123")
handlerFunc(rec, req)
Expect(rec.Code).To(Equal(http.StatusUnauthorized))
})
It("should return 200 OK when token is valid", func() {
handlerFunc := api.RequireToken(testHandler)
rec := httptest.NewRecorder()
req := httptest.NewRequest("GET", "/hello", nil)
req.Header.Set("Authorization", "Bearer " + token)
handlerFunc(rec, req)
Expect(rec.Code).To(Equal(http.StatusOK))
})
})
})
func testHandler(w http.ResponseWriter, req *http.Request) {
_, _ = io.WriteString(w, "Hello!")
}

View file

@ -2,89 +2,75 @@ package metrics_test
import ( import (
"fmt" "fmt"
"io" "github.com/containrrr/watchtower/pkg/metrics"
"io/ioutil"
"net/http" "net/http"
"net/http/httptest"
"strings"
"testing" "testing"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
"github.com/containrrr/watchtower/pkg/api" "github.com/containrrr/watchtower/pkg/api"
metricsAPI "github.com/containrrr/watchtower/pkg/api/metrics" metricsAPI "github.com/containrrr/watchtower/pkg/api/metrics"
"github.com/containrrr/watchtower/pkg/metrics"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
) )
const ( const Token = "123123123"
token = "123123123"
getURL = "http://localhost:8080/v1/metrics"
)
func TestMetrics(t *testing.T) { func TestContainer(t *testing.T) {
RegisterFailHandler(Fail) RegisterFailHandler(Fail)
RunSpecs(t, "Metrics Suite") RunSpecs(t, "Metrics Suite")
} }
func getWithToken(handler http.Handler) map[string]string { func runTestServer(m *metricsAPI.Handler) {
metricMap := map[string]string{} http.Handle(m.Path, m.Handle)
respWriter := httptest.NewRecorder() go func() {
http.ListenAndServe(":8080", nil)
req := httptest.NewRequest("GET", getURL, nil) }()
req.Header.Add("Authorization", fmt.Sprintf("Bearer %s", token))
handler.ServeHTTP(respWriter, req)
res := respWriter.Result()
body, _ := io.ReadAll(res.Body)
for _, line := range strings.Split(string(body), "\n") {
if len(line) < 1 || line[0] == '#' {
continue
}
parts := strings.Split(line, " ")
metricMap[parts[0]] = parts[1]
}
return metricMap
} }
var _ = Describe("the metrics API", func() { func getWithToken(c http.Client, url string) (*http.Response, error) {
httpAPI := api.New(token) req, _ := http.NewRequest("GET", url, nil)
m := metricsAPI.New() req.Header.Add("Authorization", fmt.Sprintf("Bearer %s", Token))
return c.Do(req)
}
handleReq := httpAPI.RequireToken(m.Handle) var _ = Describe("the metrics", func() {
tryGetMetrics := func() map[string]string { return getWithToken(handleReq) } httpAPI := api.New(Token)
m := metricsAPI.New()
httpAPI.RegisterHandler(m.Path, m.Handle)
httpAPI.Start(false)
// We should likely split this into multiple tests, but as prometheus requires a restart of the binary
// to reset the metrics and gauges, we'll just do it all at once.
It("should serve metrics", func() { It("should serve metrics", func() {
Expect(tryGetMetrics()).To(HaveKeyWithValue("watchtower_containers_updated", "0"))
metric := &metrics.Metric{ metric := &metrics.Metric{
Scanned: 4, Scanned: 4,
Updated: 3, Updated: 3,
Failed: 1, Failed: 1,
} }
metrics.RegisterScan(metric) metrics.RegisterScan(metric)
Eventually(metrics.Default().QueueIsEmpty).Should(BeTrue()) c := http.Client{}
res, err := getWithToken(c, "http://localhost:8080/v1/metrics")
Eventually(tryGetMetrics).Should(SatisfyAll( Expect(err).NotTo(HaveOccurred())
HaveKeyWithValue("watchtower_containers_updated", "3"), contents, err := ioutil.ReadAll(res.Body)
HaveKeyWithValue("watchtower_containers_failed", "1"),
HaveKeyWithValue("watchtower_containers_scanned", "4"), Expect(string(contents)).To(ContainSubstring("watchtower_containers_updated 3"))
HaveKeyWithValue("watchtower_scans_total", "1"), Expect(string(contents)).To(ContainSubstring("watchtower_containers_failed 1"))
HaveKeyWithValue("watchtower_scans_skipped", "0"), Expect(string(contents)).To(ContainSubstring("watchtower_containers_scanned 4"))
)) Expect(string(contents)).To(ContainSubstring("watchtower_scans_total 1"))
Expect(string(contents)).To(ContainSubstring("watchtower_scans_skipped 0"))
for i := 0; i < 3; i++ { for i := 0; i < 3; i++ {
metrics.RegisterScan(nil) metrics.RegisterScan(nil)
} }
Eventually(metrics.Default().QueueIsEmpty).Should(BeTrue())
Eventually(tryGetMetrics).Should(SatisfyAll( res, err = getWithToken(c, "http://localhost:8080/v1/metrics")
HaveKeyWithValue("watchtower_scans_total", "4"), Expect(err).NotTo(HaveOccurred())
HaveKeyWithValue("watchtower_scans_skipped", "3"), contents, err = ioutil.ReadAll(res.Body)
))
Expect(string(contents)).To(ContainSubstring("watchtower_scans_total 4"))
Expect(string(contents)).To(ContainSubstring("watchtower_scans_skipped 3"))
}) })
}) })

View file

@ -4,7 +4,6 @@ import (
"io" "io"
"net/http" "net/http"
"os" "os"
"strings"
log "github.com/sirupsen/logrus" log "github.com/sirupsen/logrus"
) )
@ -14,13 +13,9 @@ var (
) )
// New is a factory function creating a new Handler instance // New is a factory function creating a new Handler instance
func New(updateFn func(images []string), updateLock chan bool) *Handler { func New(updateFn func()) *Handler {
if updateLock != nil { lock = make(chan bool, 1)
lock = updateLock lock <- true
} else {
lock = make(chan bool, 1)
lock <- true
}
return &Handler{ return &Handler{
fn: updateFn, fn: updateFn,
@ -30,7 +25,7 @@ func New(updateFn func(images []string), updateLock chan bool) *Handler {
// Handler is an API handler used for triggering container update scans // Handler is an API handler used for triggering container update scans
type Handler struct { type Handler struct {
fn func(images []string) fn func()
Path string Path string
} }
@ -44,29 +39,12 @@ func (handle *Handler) Handle(w http.ResponseWriter, r *http.Request) {
return return
} }
var images []string select {
imageQueries, found := r.URL.Query()["image"] case chanValue := <-lock:
if found {
for _, image := range imageQueries {
images = append(images, strings.Split(image, ",")...)
}
} else {
images = nil
}
if len(images) > 0 {
chanValue := <-lock
defer func() { lock <- chanValue }() defer func() { lock <- chanValue }()
handle.fn(images) handle.fn()
} else { default:
select { log.Debug("Skipped. Another update already running.")
case chanValue := <-lock:
defer func() { lock <- chanValue }()
handle.fn(images)
default:
log.Debug("Skipped. Another update already running.")
}
} }
} }

View file

@ -1,29 +0,0 @@
package container
import (
"fmt"
"os"
"regexp"
"github.com/containrrr/watchtower/pkg/types"
)
var dockerContainerPattern = regexp.MustCompile(`[0-9]+:.*:/docker/([a-f|0-9]{64})`)
// GetRunningContainerID tries to resolve the current container ID from the current process cgroup information
func GetRunningContainerID() (cid types.ContainerID, err error) {
file, err := os.ReadFile(fmt.Sprintf("/proc/%d/cgroup", os.Getpid()))
if err != nil {
return
}
return getRunningContainerIDFromString(string(file)), nil
}
func getRunningContainerIDFromString(s string) types.ContainerID {
matches := dockerContainerPattern.FindStringSubmatch(s)
if len(matches) < 2 {
return ""
}
return types.ContainerID(matches[1])
}

View file

@ -1,40 +0,0 @@
package container
import (
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
)
var _ = Describe("GetRunningContainerID", func() {
When("a matching container ID is found", func() {
It("should return that container ID", func() {
cid := getRunningContainerIDFromString(`
15:name=systemd:/docker/991b6b42691449d3ce90192ff9f006863dcdafc6195e227aeefa298235004377
14:misc:/
13:rdma:/docker/991b6b42691449d3ce90192ff9f006863dcdafc6195e227aeefa298235004377
12:pids:/docker/991b6b42691449d3ce90192ff9f006863dcdafc6195e227aeefa298235004377
11:hugetlb:/docker/991b6b42691449d3ce90192ff9f006863dcdafc6195e227aeefa298235004377
10:net_prio:/docker/991b6b42691449d3ce90192ff9f006863dcdafc6195e227aeefa298235004377
9:perf_event:/docker/991b6b42691449d3ce90192ff9f006863dcdafc6195e227aeefa298235004377
8:net_cls:/docker/991b6b42691449d3ce90192ff9f006863dcdafc6195e227aeefa298235004377
7:freezer:/docker/991b6b42691449d3ce90192ff9f006863dcdafc6195e227aeefa298235004377
6:devices:/docker/991b6b42691449d3ce90192ff9f006863dcdafc6195e227aeefa298235004377
5:blkio:/docker/991b6b42691449d3ce90192ff9f006863dcdafc6195e227aeefa298235004377
4:cpuacct:/docker/991b6b42691449d3ce90192ff9f006863dcdafc6195e227aeefa298235004377
3:cpu:/docker/991b6b42691449d3ce90192ff9f006863dcdafc6195e227aeefa298235004377
2:cpuset:/docker/991b6b42691449d3ce90192ff9f006863dcdafc6195e227aeefa298235004377
1:memory:/docker/991b6b42691449d3ce90192ff9f006863dcdafc6195e227aeefa298235004377
0::/docker/991b6b42691449d3ce90192ff9f006863dcdafc6195e227aeefa298235004377
`)
Expect(cid).To(BeEquivalentTo(`991b6b42691449d3ce90192ff9f006863dcdafc6195e227aeefa298235004377`))
})
})
When("no matching container ID could be found", func() {
It("should return that container ID", func() {
cid := getRunningContainerIDFromString(`14:misc:/`)
Expect(cid).To(BeEmpty())
})
})
})
//

View file

@ -3,10 +3,14 @@ package container
import ( import (
"bytes" "bytes"
"fmt" "fmt"
"io" "io/ioutil"
"strings" "strings"
"time" "time"
"github.com/containrrr/watchtower/pkg/registry"
"github.com/containrrr/watchtower/pkg/registry/digest"
t "github.com/containrrr/watchtower/pkg/types"
"github.com/docker/docker/api/types" "github.com/docker/docker/api/types"
"github.com/docker/docker/api/types/container" "github.com/docker/docker/api/types/container"
"github.com/docker/docker/api/types/filters" "github.com/docker/docker/api/types/filters"
@ -14,10 +18,6 @@ import (
sdkClient "github.com/docker/docker/client" sdkClient "github.com/docker/docker/client"
log "github.com/sirupsen/logrus" log "github.com/sirupsen/logrus"
"golang.org/x/net/context" "golang.org/x/net/context"
"github.com/containrrr/watchtower/pkg/registry"
"github.com/containrrr/watchtower/pkg/registry/digest"
t "github.com/containrrr/watchtower/pkg/types"
) )
const defaultStopSignal = "SIGTERM" const defaultStopSignal = "SIGTERM"
@ -25,24 +25,23 @@ const defaultStopSignal = "SIGTERM"
// A Client is the interface through which watchtower interacts with the // A Client is the interface through which watchtower interacts with the
// Docker API. // Docker API.
type Client interface { type Client interface {
ListContainers(t.Filter) ([]t.Container, error) ListContainers(t.Filter) ([]Container, error)
GetContainer(containerID t.ContainerID) (t.Container, error) GetContainer(containerID string) (Container, error)
StopContainer(t.Container, time.Duration) error StopContainer(Container, time.Duration) error
StartContainer(t.Container) (t.ContainerID, error) StartContainer(Container) (string, error)
RenameContainer(t.Container, string) error RenameContainer(Container, string) error
IsContainerStale(t.Container, t.UpdateParams) (stale bool, latestImage t.ImageID, err error) IsContainerStale(Container) (bool, error)
ExecuteCommand(containerID t.ContainerID, command string, timeout int) (SkipUpdate bool, err error) ExecuteCommand(containerID string, command string, timeout int) error
RemoveImageByID(t.ImageID) error RemoveImageByID(string) error
WarnOnHeadPullFailed(container t.Container) bool
} }
// NewClient returns a new Client instance which can be used to interact with // NewClient returns a new Client instance which can be used to interact with
// the Docker API. // the Docker API.
// The client reads its configuration from the following environment variables: // The client reads its configuration from the following environment variables:
// - DOCKER_HOST the docker-engine host to send api requests to // * DOCKER_HOST the docker-engine host to send api requests to
// - DOCKER_TLS_VERIFY whether to verify tls certificates // * DOCKER_TLS_VERIFY whether to verify tls certificates
// - DOCKER_API_VERSION the minimum docker api version to work with // * DOCKER_API_VERSION the minimum docker api version to work with
func NewClient(opts ClientOptions) Client { func NewClient(pullImages bool, includeStopped bool, reviveStopped bool, removeVolumes bool, includeRestarting bool) Client {
cli, err := sdkClient.NewClientWithOpts(sdkClient.FromEnv) cli, err := sdkClient.NewClientWithOpts(sdkClient.FromEnv)
if err != nil { if err != nil {
@ -50,57 +49,33 @@ func NewClient(opts ClientOptions) Client {
} }
return dockerClient{ return dockerClient{
api: cli, api: cli,
ClientOptions: opts, pullImages: pullImages,
removeVolumes: removeVolumes,
includeStopped: includeStopped,
reviveStopped: reviveStopped,
includeRestarting: includeRestarting,
} }
} }
// ClientOptions contains the options for how the docker client wrapper should behave
type ClientOptions struct {
RemoveVolumes bool
IncludeStopped bool
ReviveStopped bool
IncludeRestarting bool
WarnOnHeadFailed WarningStrategy
}
// WarningStrategy is a value determining when to show warnings
type WarningStrategy string
const (
// WarnAlways warns whenever the problem occurs
WarnAlways WarningStrategy = "always"
// WarnNever never warns when the problem occurs
WarnNever WarningStrategy = "never"
// WarnAuto skips warning when the problem was expected
WarnAuto WarningStrategy = "auto"
)
type dockerClient struct { type dockerClient struct {
api sdkClient.CommonAPIClient api sdkClient.CommonAPIClient
ClientOptions pullImages bool
removeVolumes bool
includeStopped bool
reviveStopped bool
includeRestarting bool
} }
func (client dockerClient) WarnOnHeadPullFailed(container t.Container) bool { func (client dockerClient) ListContainers(fn t.Filter) ([]Container, error) {
if client.WarnOnHeadFailed == WarnAlways { cs := []Container{}
return true
}
if client.WarnOnHeadFailed == WarnNever {
return false
}
return registry.WarnOnAPIConsumption(container)
}
func (client dockerClient) ListContainers(fn t.Filter) ([]t.Container, error) {
cs := []t.Container{}
bg := context.Background() bg := context.Background()
if client.IncludeStopped && client.IncludeRestarting { if client.includeStopped && client.includeRestarting {
log.Debug("Retrieving running, stopped, restarting and exited containers") log.Debug("Retrieving running, stopped, restarting and exited containers")
} else if client.IncludeStopped { } else if client.includeStopped {
log.Debug("Retrieving running, stopped and exited containers") log.Debug("Retrieving running, stopped and exited containers")
} else if client.IncludeRestarting { } else if client.includeRestarting {
log.Debug("Retrieving running and restarting containers") log.Debug("Retrieving running and restarting containers")
} else { } else {
log.Debug("Retrieving running containers") log.Debug("Retrieving running containers")
@ -119,7 +94,7 @@ func (client dockerClient) ListContainers(fn t.Filter) ([]t.Container, error) {
for _, runningContainer := range containers { for _, runningContainer := range containers {
c, err := client.GetContainer(t.ContainerID(runningContainer.ID)) c, err := client.GetContainer(runningContainer.ID)
if err != nil { if err != nil {
return nil, err return nil, err
} }
@ -136,64 +111,45 @@ func (client dockerClient) createListFilter() filters.Args {
filterArgs := filters.NewArgs() filterArgs := filters.NewArgs()
filterArgs.Add("status", "running") filterArgs.Add("status", "running")
if client.IncludeStopped { if client.includeStopped {
filterArgs.Add("status", "created") filterArgs.Add("status", "created")
filterArgs.Add("status", "exited") filterArgs.Add("status", "exited")
} }
if client.IncludeRestarting { if client.includeRestarting {
filterArgs.Add("status", "restarting") filterArgs.Add("status", "restarting")
} }
return filterArgs return filterArgs
} }
func (client dockerClient) GetContainer(containerID t.ContainerID) (t.Container, error) { func (client dockerClient) GetContainer(containerID string) (Container, error) {
bg := context.Background() bg := context.Background()
containerInfo, err := client.api.ContainerInspect(bg, string(containerID)) containerInfo, err := client.api.ContainerInspect(bg, containerID)
if err != nil { if err != nil {
return &Container{}, err return Container{}, err
}
netType, netContainerId, found := strings.Cut(string(containerInfo.HostConfig.NetworkMode), ":")
if found && netType == "container" {
parentContainer, err := client.api.ContainerInspect(bg, netContainerId)
if err != nil {
log.WithFields(map[string]interface{}{
"container": containerInfo.Name,
"error": err,
"network-container": netContainerId,
}).Warnf("Unable to resolve network container: %v", err)
} else {
// Replace the container ID with a container name to allow it to reference the re-created network container
containerInfo.HostConfig.NetworkMode = container.NetworkMode(fmt.Sprintf("container:%s", parentContainer.Name))
}
} }
imageInfo, _, err := client.api.ImageInspectWithRaw(bg, containerInfo.Image) imageInfo, _, err := client.api.ImageInspectWithRaw(bg, containerInfo.Image)
if err != nil { if err != nil {
log.Warnf("Failed to retrieve container image info: %v", err) log.Warnf("Failed to retrieve container image info: %v", err)
return &Container{containerInfo: &containerInfo, imageInfo: nil}, nil return Container{containerInfo: &containerInfo, imageInfo: nil}, nil
} }
return &Container{containerInfo: &containerInfo, imageInfo: &imageInfo}, nil return Container{containerInfo: &containerInfo, imageInfo: &imageInfo}, nil
} }
func (client dockerClient) StopContainer(c t.Container, timeout time.Duration) error { func (client dockerClient) StopContainer(c Container, timeout time.Duration) error {
bg := context.Background() bg := context.Background()
signal := c.StopSignal() signal := c.StopSignal()
if signal == "" { if signal == "" {
signal = defaultStopSignal signal = defaultStopSignal
} }
idStr := string(c.ID())
shortID := c.ID().ShortID()
if c.IsRunning() { if c.IsRunning() {
log.Infof("Stopping %s (%s) with %s", c.Name(), shortID, signal) log.Infof("Stopping %s (%s) with %s", c.Name(), c.ID(), signal)
if err := client.api.ContainerKill(bg, idStr, signal); err != nil { if err := client.api.ContainerKill(bg, c.ID(), signal); err != nil {
return err return err
} }
} }
@ -201,56 +157,29 @@ func (client dockerClient) StopContainer(c t.Container, timeout time.Duration) e
// TODO: This should probably be checked. // TODO: This should probably be checked.
_ = client.waitForStopOrTimeout(c, timeout) _ = client.waitForStopOrTimeout(c, timeout)
if c.ContainerInfo().HostConfig.AutoRemove { if c.containerInfo.HostConfig.AutoRemove {
log.Debugf("AutoRemove container %s, skipping ContainerRemove call.", shortID) log.Debugf("AutoRemove container %s, skipping ContainerRemove call.", c.ID())
} else { } else {
log.Debugf("Removing container %s", shortID) log.Debugf("Removing container %s", c.ID())
if err := client.api.ContainerRemove(bg, idStr, types.ContainerRemoveOptions{Force: true, RemoveVolumes: client.RemoveVolumes}); err != nil { if err := client.api.ContainerRemove(bg, c.ID(), types.ContainerRemoveOptions{Force: true, RemoveVolumes: client.removeVolumes}); err != nil {
if sdkClient.IsErrNotFound(err) {
log.Debugf("Container %s not found, skipping removal.", shortID)
return nil
}
return err return err
} }
} }
// Wait for container to be removed. In this case an error is a good thing // Wait for container to be removed. In this case an error is a good thing
if err := client.waitForStopOrTimeout(c, timeout); err == nil { if err := client.waitForStopOrTimeout(c, timeout); err == nil {
return fmt.Errorf("container %s (%s) could not be removed", c.Name(), shortID) return fmt.Errorf("container %s (%s) could not be removed", c.Name(), c.ID())
} }
return nil return nil
} }
func (client dockerClient) GetNetworkConfig(c t.Container) *network.NetworkingConfig { func (client dockerClient) StartContainer(c Container) (string, error) {
config := &network.NetworkingConfig{
EndpointsConfig: c.ContainerInfo().NetworkSettings.Networks,
}
for _, ep := range config.EndpointsConfig {
aliases := make([]string, 0, len(ep.Aliases))
cidAlias := c.ID().ShortID()
// Remove the old container ID alias from the network aliases, as it would accumulate across updates otherwise
for _, alias := range ep.Aliases {
if alias == cidAlias {
continue
}
aliases = append(aliases, alias)
}
ep.Aliases = aliases
}
return config
}
func (client dockerClient) StartContainer(c t.Container) (t.ContainerID, error) {
bg := context.Background() bg := context.Background()
config := c.GetCreateConfig() config := c.runtimeConfig()
hostConfig := c.GetCreateHostConfig() hostConfig := c.hostConfig()
networkConfig := client.GetNetworkConfig(c) networkConfig := &network.NetworkingConfig{EndpointsConfig: c.containerInfo.NetworkSettings.Networks}
// simpleNetworkConfig is a networkConfig with only 1 network. // simpleNetworkConfig is a networkConfig with only 1 network.
// see: https://github.com/docker/docker/issues/29265 // see: https://github.com/docker/docker/issues/29265
simpleNetworkConfig := func() *network.NetworkingConfig { simpleNetworkConfig := func() *network.NetworkingConfig {
@ -266,8 +195,7 @@ func (client dockerClient) StartContainer(c t.Container) (t.ContainerID, error)
name := c.Name() name := c.Name()
log.Infof("Creating %s", name) log.Infof("Creating %s", name)
createdContainer, err := client.api.ContainerCreate(bg, config, hostConfig, simpleNetworkConfig, name)
createdContainer, err := client.api.ContainerCreate(bg, config, hostConfig, simpleNetworkConfig, nil, name)
if err != nil { if err != nil {
return "", err return "", err
} }
@ -290,19 +218,18 @@ func (client dockerClient) StartContainer(c t.Container) (t.ContainerID, error)
} }
createdContainerID := t.ContainerID(createdContainer.ID) if !c.IsRunning() && !client.reviveStopped {
if !c.IsRunning() && !client.ReviveStopped { return createdContainer.ID, nil
return createdContainerID, nil
} }
return createdContainerID, client.doStartContainer(bg, c, createdContainer) return createdContainer.ID, client.doStartContainer(bg, c, createdContainer)
} }
func (client dockerClient) doStartContainer(bg context.Context, c t.Container, creation container.CreateResponse) error { func (client dockerClient) doStartContainer(bg context.Context, c Container, creation container.ContainerCreateCreatedBody) error {
name := c.Name() name := c.Name()
log.Debugf("Starting container %s (%s)", name, t.ContainerID(creation.ID).ShortID()) log.Debugf("Starting container %s (%s)", name, creation.ID)
err := client.api.ContainerStart(bg, creation.ID, types.ContainerStartOptions{}) err := client.api.ContainerStart(bg, creation.ID, types.ContainerStartOptions{})
if err != nil { if err != nil {
return err return err
@ -310,46 +237,43 @@ func (client dockerClient) doStartContainer(bg context.Context, c t.Container, c
return nil return nil
} }
func (client dockerClient) RenameContainer(c t.Container, newName string) error { func (client dockerClient) RenameContainer(c Container, newName string) error {
bg := context.Background() bg := context.Background()
log.Debugf("Renaming container %s (%s) to %s", c.Name(), c.ID().ShortID(), newName) log.Debugf("Renaming container %s (%s) to %s", c.Name(), c.ID(), newName)
return client.api.ContainerRename(bg, string(c.ID()), newName) return client.api.ContainerRename(bg, c.ID(), newName)
} }
func (client dockerClient) IsContainerStale(container t.Container, params t.UpdateParams) (stale bool, latestImage t.ImageID, err error) { func (client dockerClient) IsContainerStale(container Container) (bool, error) {
ctx := context.Background() ctx := context.Background()
if container.IsNoPull(params) { if !client.pullImages {
log.Debugf("Skipping image pull.") log.Debugf("Skipping image pull.")
} else if err := client.PullImage(ctx, container); err != nil { } else if err := client.PullImage(ctx, container); err != nil {
return false, container.SafeImageID(), err return false, err
} }
return client.HasNewImage(ctx, container) return client.HasNewImage(ctx, container)
} }
func (client dockerClient) HasNewImage(ctx context.Context, container t.Container) (hasNew bool, latestImage t.ImageID, err error) { func (client dockerClient) HasNewImage(ctx context.Context, container Container) (bool, error) {
currentImageID := t.ImageID(container.ContainerInfo().ContainerJSONBase.Image) oldImageID := container.containerInfo.ContainerJSONBase.Image
imageName := container.ImageName() imageName := container.ImageName()
newImageInfo, _, err := client.api.ImageInspectWithRaw(ctx, imageName) newImageInfo, _, err := client.api.ImageInspectWithRaw(ctx, imageName)
if err != nil { if err != nil {
return false, currentImageID, err return false, err
} }
newImageID := t.ImageID(newImageInfo.ID) if newImageInfo.ID == oldImageID {
if newImageID == currentImageID {
log.Debugf("No new images found for %s", container.Name()) log.Debugf("No new images found for %s", container.Name())
return false, currentImageID, nil return false, nil
} }
log.Infof("Found new %s image (%s)", imageName, newImageID.ShortID()) log.Infof("Found new %s image (%s)", imageName, newImageInfo.ID)
return true, newImageID, nil return true, nil
} }
// PullImage pulls the latest image for the supplied container, optionally skipping if it's digest can be confirmed func (client dockerClient) PullImage(ctx context.Context, container Container) error {
// to match the one that the registry reports via a HEAD request
func (client dockerClient) PullImage(ctx context.Context, container t.Container) error {
containerName := container.Name() containerName := container.Name()
imageName := container.ImageName() imageName := container.ImageName()
@ -358,29 +282,25 @@ func (client dockerClient) PullImage(ctx context.Context, container t.Container)
"container": containerName, "container": containerName,
} }
if strings.HasPrefix(imageName, "sha256:") {
return fmt.Errorf("container uses a pinned image, and cannot be updated by watchtower")
}
log.WithFields(fields).Debugf("Trying to load authentication credentials.") log.WithFields(fields).Debugf("Trying to load authentication credentials.")
opts, err := registry.GetPullOptions(imageName) opts, err := registry.GetPullOptions(imageName)
if opts.RegistryAuth != "" {
log.Debug("Credentials loaded")
}
if err != nil { if err != nil {
log.Debugf("Error loading authentication credentials %s", err) log.Debugf("Error loading authentication credentials %s", err)
return err return err
} }
if opts.RegistryAuth != "" {
log.Debug("Credentials loaded")
}
log.WithFields(fields).Debugf("Checking if pull is needed") log.WithFields(fields).Debugf("Checking if pull is needed")
if match, err := digest.CompareDigest(container, opts.RegistryAuth); err != nil { if match, err := digest.CompareDigest(container, opts.RegistryAuth); err != nil {
headLevel := log.DebugLevel if registry.WarnOnAPIConsumption(container) {
if client.WarnOnHeadPullFailed(container) { log.WithFields(fields).Warning("Could not do a head request, falling back to regular pull.")
headLevel = log.WarnLevel } else {
log.Debug("Could not do a head request, falling back to regular pull.")
} }
log.WithFields(fields).Logf(headLevel, "Could not do a head request for %q, falling back to regular pull.", imageName) log.Debugf("Reason: %s", err.Error())
log.WithFields(fields).Log(headLevel, "Reason: ", err)
} else if match { } else if match {
log.Debug("No pull needed. Skipping image.") log.Debug("No pull needed. Skipping image.")
return nil return nil
@ -398,50 +318,28 @@ func (client dockerClient) PullImage(ctx context.Context, container t.Container)
defer response.Close() defer response.Close()
// the pull request will be aborted prematurely unless the response is read // the pull request will be aborted prematurely unless the response is read
if _, err = io.ReadAll(response); err != nil { if _, err = ioutil.ReadAll(response); err != nil {
log.Error(err) log.Error(err)
return err return err
} }
return nil return nil
} }
func (client dockerClient) RemoveImageByID(id t.ImageID) error { func (client dockerClient) RemoveImageByID(id string) error {
log.Infof("Removing image %s", id.ShortID()) log.Infof("Removing image %s", id)
items, err := client.api.ImageRemove( _, err := client.api.ImageRemove(
context.Background(), context.Background(),
string(id), id,
types.ImageRemoveOptions{ types.ImageRemoveOptions{
Force: true, Force: true,
}) })
if log.IsLevelEnabled(log.DebugLevel) {
deleted := strings.Builder{}
untagged := strings.Builder{}
for _, item := range items {
if item.Deleted != "" {
if deleted.Len() > 0 {
deleted.WriteString(`, `)
}
deleted.WriteString(t.ImageID(item.Deleted).ShortID())
}
if item.Untagged != "" {
if untagged.Len() > 0 {
untagged.WriteString(`, `)
}
untagged.WriteString(t.ImageID(item.Untagged).ShortID())
}
}
fields := log.Fields{`deleted`: deleted.String(), `untagged`: untagged.String()}
log.WithFields(fields).Debug("Image removal completed")
}
return err return err
} }
func (client dockerClient) ExecuteCommand(containerID t.ContainerID, command string, timeout int) (SkipUpdate bool, err error) { func (client dockerClient) ExecuteCommand(containerID string, command string, timeout int) error {
bg := context.Background() bg := context.Background()
clog := log.WithField("containerID", containerID)
// Create the exec // Create the exec
execConfig := types.ExecConfig{ execConfig := types.ExecConfig{
@ -450,9 +348,9 @@ func (client dockerClient) ExecuteCommand(containerID t.ContainerID, command str
Cmd: []string{"sh", "-c", command}, Cmd: []string{"sh", "-c", command},
} }
exec, err := client.api.ContainerExecCreate(bg, string(containerID), execConfig) exec, err := client.api.ContainerExecCreate(bg, containerID, execConfig)
if err != nil { if err != nil {
return false, err return err
} }
response, attachErr := client.api.ContainerExecAttach(bg, exec.ID, types.ExecStartCheck{ response, attachErr := client.api.ContainerExecAttach(bg, exec.ID, types.ExecStartCheck{
@ -460,14 +358,14 @@ func (client dockerClient) ExecuteCommand(containerID t.ContainerID, command str
Detach: false, Detach: false,
}) })
if attachErr != nil { if attachErr != nil {
clog.Errorf("Failed to extract command exec logs: %v", attachErr) log.Errorf("Failed to extract command exec logs: %v", attachErr)
} }
// Run the exec // Run the exec
execStartCheck := types.ExecStartCheck{Detach: false, Tty: true} execStartCheck := types.ExecStartCheck{Detach: false, Tty: true}
err = client.api.ContainerExecStart(bg, exec.ID, execStartCheck) err = client.api.ContainerExecStart(bg, exec.ID, execStartCheck)
if err != nil { if err != nil {
return false, err return err
} }
var output string var output string
@ -476,7 +374,7 @@ func (client dockerClient) ExecuteCommand(containerID t.ContainerID, command str
var writer bytes.Buffer var writer bytes.Buffer
written, err := writer.ReadFrom(response.Reader) written, err := writer.ReadFrom(response.Reader)
if err != nil { if err != nil {
clog.Error(err) log.Error(err)
} else if written > 0 { } else if written > 0 {
output = strings.TrimSpace(writer.String()) output = strings.TrimSpace(writer.String())
} }
@ -484,16 +382,15 @@ func (client dockerClient) ExecuteCommand(containerID t.ContainerID, command str
// Inspect the exec to get the exit code and print a message if the // Inspect the exec to get the exit code and print a message if the
// exit code is not success. // exit code is not success.
skipUpdate, err := client.waitForExecOrTimeout(bg, exec.ID, output, timeout) err = client.waitForExecOrTimeout(bg, exec.ID, output, timeout)
if err != nil { if err != nil {
return true, err return err
} }
return skipUpdate, nil return nil
} }
func (client dockerClient) waitForExecOrTimeout(bg context.Context, ID string, execOutput string, timeout int) (SkipUpdate bool, err error) { func (client dockerClient) waitForExecOrTimeout(bg context.Context, ID string, execOutput string, timeout int) error {
const ExTempFail = 75
var ctx context.Context var ctx context.Context
var cancel context.CancelFunc var cancel context.CancelFunc
@ -507,38 +404,32 @@ func (client dockerClient) waitForExecOrTimeout(bg context.Context, ID string, e
for { for {
execInspect, err := client.api.ContainerExecInspect(ctx, ID) execInspect, err := client.api.ContainerExecInspect(ctx, ID)
//goland:noinspection GoNilness
log.WithFields(log.Fields{ log.WithFields(log.Fields{
"exit-code": execInspect.ExitCode, "exit-code": execInspect.ExitCode,
"exec-id": execInspect.ExecID, "exec-id": execInspect.ExecID,
"running": execInspect.Running, "running": execInspect.Running,
"container-id": execInspect.ContainerID,
}).Debug("Awaiting timeout or completion") }).Debug("Awaiting timeout or completion")
if err != nil { if err != nil {
return false, err return err
} }
if execInspect.Running { if execInspect.Running == true {
time.Sleep(1 * time.Second) time.Sleep(1 * time.Second)
continue continue
} }
if len(execOutput) > 0 { if len(execOutput) > 0 {
log.Infof("Command output:\n%v", execOutput) log.Infof("Command output:\n%v", execOutput)
} }
if execInspect.ExitCode == ExTempFail {
return true, nil
}
if execInspect.ExitCode > 0 { if execInspect.ExitCode > 0 {
return false, fmt.Errorf("command exited with code %v %s", execInspect.ExitCode, execOutput) log.Errorf("Command exited with code %v.", execInspect.ExitCode)
log.Error(execOutput)
} }
break break
} }
return false, nil return nil
} }
func (client dockerClient) waitForStopOrTimeout(c t.Container, waitTime time.Duration) error { func (client dockerClient) waitForStopOrTimeout(c Container, waitTime time.Duration) error {
bg := context.Background() bg := context.Background()
timeout := time.After(waitTime) timeout := time.After(waitTime)
@ -547,7 +438,7 @@ func (client dockerClient) waitForStopOrTimeout(c t.Container, waitTime time.Dur
case <-timeout: case <-timeout:
return nil return nil
default: default:
if ci, err := client.api.ContainerInspect(bg, string(c.ID())); err != nil { if ci, err := client.api.ContainerInspect(bg, c.ID()); err != nil {
return err return err
} else if !ci.State.Running { } else if !ci.State.Running {
return nil return nil

View file

@ -1,377 +0,0 @@
package container
import (
"github.com/docker/docker/api/types/network"
"time"
"github.com/containrrr/watchtower/internal/util"
"github.com/containrrr/watchtower/pkg/container/mocks"
"github.com/containrrr/watchtower/pkg/filters"
t "github.com/containrrr/watchtower/pkg/types"
"github.com/docker/docker/api/types"
"github.com/docker/docker/api/types/backend"
cli "github.com/docker/docker/client"
"github.com/docker/docker/errdefs"
"github.com/onsi/gomega/gbytes"
"github.com/onsi/gomega/ghttp"
"github.com/sirupsen/logrus"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
gt "github.com/onsi/gomega/types"
"context"
"net/http"
)
var _ = Describe("the client", func() {
var docker *cli.Client
var mockServer *ghttp.Server
BeforeEach(func() {
mockServer = ghttp.NewServer()
docker, _ = cli.NewClientWithOpts(
cli.WithHost(mockServer.URL()),
cli.WithHTTPClient(mockServer.HTTPTestServer.Client()))
})
AfterEach(func() {
mockServer.Close()
})
Describe("WarnOnHeadPullFailed", func() {
containerUnknown := MockContainer(WithImageName("unknown.repo/prefix/imagename:latest"))
containerKnown := MockContainer(WithImageName("docker.io/prefix/imagename:latest"))
When(`warn on head failure is set to "always"`, func() {
c := dockerClient{ClientOptions: ClientOptions{WarnOnHeadFailed: WarnAlways}}
It("should always return true", func() {
Expect(c.WarnOnHeadPullFailed(containerUnknown)).To(BeTrue())
Expect(c.WarnOnHeadPullFailed(containerKnown)).To(BeTrue())
})
})
When(`warn on head failure is set to "auto"`, func() {
c := dockerClient{ClientOptions: ClientOptions{WarnOnHeadFailed: WarnAuto}}
It("should return false for unknown repos", func() {
Expect(c.WarnOnHeadPullFailed(containerUnknown)).To(BeFalse())
})
It("should return true for known repos", func() {
Expect(c.WarnOnHeadPullFailed(containerKnown)).To(BeTrue())
})
})
When(`warn on head failure is set to "never"`, func() {
c := dockerClient{ClientOptions: ClientOptions{WarnOnHeadFailed: WarnNever}}
It("should never return true", func() {
Expect(c.WarnOnHeadPullFailed(containerUnknown)).To(BeFalse())
Expect(c.WarnOnHeadPullFailed(containerKnown)).To(BeFalse())
})
})
})
When("pulling the latest image", func() {
When("the image consist of a pinned hash", func() {
It("should gracefully fail with a useful message", func() {
c := dockerClient{}
pinnedContainer := MockContainer(WithImageName("sha256:fa5269854a5e615e51a72b17ad3fd1e01268f278a6684c8ed3c5f0cdce3f230b"))
err := c.PullImage(context.Background(), pinnedContainer)
Expect(err).To(MatchError(`container uses a pinned image, and cannot be updated by watchtower`))
})
})
})
When("removing a running container", func() {
When("the container still exist after stopping", func() {
It("should attempt to remove the container", func() {
container := MockContainer(WithContainerState(types.ContainerState{Running: true}))
containerStopped := MockContainer(WithContainerState(types.ContainerState{Running: false}))
cid := container.ContainerInfo().ID
mockServer.AppendHandlers(
mocks.KillContainerHandler(cid, mocks.Found),
mocks.GetContainerHandler(cid, containerStopped.ContainerInfo()),
mocks.RemoveContainerHandler(cid, mocks.Found),
mocks.GetContainerHandler(cid, nil),
)
Expect(dockerClient{api: docker}.StopContainer(container, time.Minute)).To(Succeed())
})
})
When("the container does not exist after stopping", func() {
It("should not cause an error", func() {
container := MockContainer(WithContainerState(types.ContainerState{Running: true}))
cid := container.ContainerInfo().ID
mockServer.AppendHandlers(
mocks.KillContainerHandler(cid, mocks.Found),
mocks.GetContainerHandler(cid, nil),
mocks.RemoveContainerHandler(cid, mocks.Missing),
)
Expect(dockerClient{api: docker}.StopContainer(container, time.Minute)).To(Succeed())
})
})
})
When("removing a image", func() {
When("debug logging is enabled", func() {
It("should log removed and untagged images", func() {
imageA := util.GenerateRandomSHA256()
imageAParent := util.GenerateRandomSHA256()
images := map[string][]string{imageA: {imageAParent}}
mockServer.AppendHandlers(mocks.RemoveImageHandler(images))
c := dockerClient{api: docker}
resetLogrus, logbuf := captureLogrus(logrus.DebugLevel)
defer resetLogrus()
Expect(c.RemoveImageByID(t.ImageID(imageA))).To(Succeed())
shortA := t.ImageID(imageA).ShortID()
shortAParent := t.ImageID(imageAParent).ShortID()
Eventually(logbuf).Should(gbytes.Say(`deleted="%v, %v" untagged="?%v"?`, shortA, shortAParent, shortA))
})
})
When("image is not found", func() {
It("should return an error", func() {
image := util.GenerateRandomSHA256()
mockServer.AppendHandlers(mocks.RemoveImageHandler(nil))
c := dockerClient{api: docker}
err := c.RemoveImageByID(t.ImageID(image))
Expect(errdefs.IsNotFound(err)).To(BeTrue())
})
})
})
When("listing containers", func() {
When("no filter is provided", func() {
It("should return all available containers", func() {
mockServer.AppendHandlers(mocks.ListContainersHandler("running"))
mockServer.AppendHandlers(mocks.GetContainerHandlers(&mocks.Watchtower, &mocks.Running)...)
client := dockerClient{
api: docker,
ClientOptions: ClientOptions{},
}
containers, err := client.ListContainers(filters.NoFilter)
Expect(err).NotTo(HaveOccurred())
Expect(containers).To(HaveLen(2))
})
})
When("a filter matching nothing", func() {
It("should return an empty array", func() {
mockServer.AppendHandlers(mocks.ListContainersHandler("running"))
mockServer.AppendHandlers(mocks.GetContainerHandlers(&mocks.Watchtower, &mocks.Running)...)
filter := filters.FilterByNames([]string{"lollercoaster"}, filters.NoFilter)
client := dockerClient{
api: docker,
ClientOptions: ClientOptions{},
}
containers, err := client.ListContainers(filter)
Expect(err).NotTo(HaveOccurred())
Expect(containers).To(BeEmpty())
})
})
When("a watchtower filter is provided", func() {
It("should return only the watchtower container", func() {
mockServer.AppendHandlers(mocks.ListContainersHandler("running"))
mockServer.AppendHandlers(mocks.GetContainerHandlers(&mocks.Watchtower, &mocks.Running)...)
client := dockerClient{
api: docker,
ClientOptions: ClientOptions{},
}
containers, err := client.ListContainers(filters.WatchtowerContainersFilter)
Expect(err).NotTo(HaveOccurred())
Expect(containers).To(ConsistOf(withContainerImageName(Equal("containrrr/watchtower:latest"))))
})
})
When(`include stopped is enabled`, func() {
It("should return both stopped and running containers", func() {
mockServer.AppendHandlers(mocks.ListContainersHandler("running", "exited", "created"))
mockServer.AppendHandlers(mocks.GetContainerHandlers(&mocks.Stopped, &mocks.Watchtower, &mocks.Running)...)
client := dockerClient{
api: docker,
ClientOptions: ClientOptions{IncludeStopped: true},
}
containers, err := client.ListContainers(filters.NoFilter)
Expect(err).NotTo(HaveOccurred())
Expect(containers).To(ContainElement(havingRunningState(false)))
})
})
When(`include restarting is enabled`, func() {
It("should return both restarting and running containers", func() {
mockServer.AppendHandlers(mocks.ListContainersHandler("running", "restarting"))
mockServer.AppendHandlers(mocks.GetContainerHandlers(&mocks.Watchtower, &mocks.Running, &mocks.Restarting)...)
client := dockerClient{
api: docker,
ClientOptions: ClientOptions{IncludeRestarting: true},
}
containers, err := client.ListContainers(filters.NoFilter)
Expect(err).NotTo(HaveOccurred())
Expect(containers).To(ContainElement(havingRestartingState(true)))
})
})
When(`include restarting is disabled`, func() {
It("should not return restarting containers", func() {
mockServer.AppendHandlers(mocks.ListContainersHandler("running"))
mockServer.AppendHandlers(mocks.GetContainerHandlers(&mocks.Watchtower, &mocks.Running)...)
client := dockerClient{
api: docker,
ClientOptions: ClientOptions{IncludeRestarting: false},
}
containers, err := client.ListContainers(filters.NoFilter)
Expect(err).NotTo(HaveOccurred())
Expect(containers).NotTo(ContainElement(havingRestartingState(true)))
})
})
When(`a container uses container network mode`, func() {
When(`the network container can be resolved`, func() {
It("should return the container name instead of the ID", func() {
consumerContainerRef := mocks.NetConsumerOK
mockServer.AppendHandlers(mocks.GetContainerHandlers(&consumerContainerRef)...)
client := dockerClient{
api: docker,
ClientOptions: ClientOptions{},
}
container, err := client.GetContainer(consumerContainerRef.ContainerID())
Expect(err).NotTo(HaveOccurred())
networkMode := container.ContainerInfo().HostConfig.NetworkMode
Expect(networkMode.ConnectedContainer()).To(Equal(mocks.NetSupplierContainerName))
})
})
When(`the network container cannot be resolved`, func() {
It("should still return the container ID", func() {
consumerContainerRef := mocks.NetConsumerInvalidSupplier
mockServer.AppendHandlers(mocks.GetContainerHandlers(&consumerContainerRef)...)
client := dockerClient{
api: docker,
ClientOptions: ClientOptions{},
}
container, err := client.GetContainer(consumerContainerRef.ContainerID())
Expect(err).NotTo(HaveOccurred())
networkMode := container.ContainerInfo().HostConfig.NetworkMode
Expect(networkMode.ConnectedContainer()).To(Equal(mocks.NetSupplierNotFoundID))
})
})
})
})
Describe(`ExecuteCommand`, func() {
When(`logging`, func() {
It("should include container id field", func() {
client := dockerClient{
api: docker,
ClientOptions: ClientOptions{},
}
// Capture logrus output in buffer
resetLogrus, logbuf := captureLogrus(logrus.DebugLevel)
defer resetLogrus()
user := ""
containerID := t.ContainerID("ex-cont-id")
execID := "ex-exec-id"
cmd := "exec-cmd"
mockServer.AppendHandlers(
// API.ContainerExecCreate
ghttp.CombineHandlers(
ghttp.VerifyRequest("POST", HaveSuffix("containers/%v/exec", containerID)),
ghttp.VerifyJSONRepresenting(types.ExecConfig{
User: user,
Detach: false,
Tty: true,
Cmd: []string{
"sh",
"-c",
cmd,
},
}),
ghttp.RespondWithJSONEncoded(http.StatusOK, types.IDResponse{ID: execID}),
),
// API.ContainerExecStart
ghttp.CombineHandlers(
ghttp.VerifyRequest("POST", HaveSuffix("exec/%v/start", execID)),
ghttp.VerifyJSONRepresenting(types.ExecStartCheck{
Detach: false,
Tty: true,
}),
ghttp.RespondWith(http.StatusOK, nil),
),
// API.ContainerExecInspect
ghttp.CombineHandlers(
ghttp.VerifyRequest("GET", HaveSuffix("exec/ex-exec-id/json")),
ghttp.RespondWithJSONEncoded(http.StatusOK, backend.ExecInspect{
ID: execID,
Running: false,
ExitCode: nil,
ProcessConfig: &backend.ExecProcessConfig{
Entrypoint: "sh",
Arguments: []string{"-c", cmd},
User: user,
},
ContainerID: string(containerID),
}),
),
)
_, err := client.ExecuteCommand(containerID, cmd, 1)
Expect(err).NotTo(HaveOccurred())
// Note: Since Execute requires opening up a raw TCP stream to the daemon for the output, this will fail
// when using the mock API server. Regardless of the outcome, the log should include the container ID
Eventually(logbuf).Should(gbytes.Say(`containerID="?ex-cont-id"?`))
})
})
})
Describe(`GetNetworkConfig`, func() {
When(`providing a container with network aliases`, func() {
It(`should omit the container ID alias`, func() {
client := dockerClient{
api: docker,
ClientOptions: ClientOptions{IncludeRestarting: false},
}
container := MockContainer(WithImageName("docker.io/prefix/imagename:latest"))
aliases := []string{"One", "Two", container.ID().ShortID(), "Four"}
endpoints := map[string]*network.EndpointSettings{
`test`: {Aliases: aliases},
}
container.containerInfo.NetworkSettings = &types.NetworkSettings{Networks: endpoints}
Expect(container.ContainerInfo().NetworkSettings.Networks[`test`].Aliases).To(Equal(aliases))
Expect(client.GetNetworkConfig(container).EndpointsConfig[`test`].Aliases).To(Equal([]string{"One", "Two", "Four"}))
})
})
})
})
// Capture logrus output in buffer
func captureLogrus(level logrus.Level) (func(), *gbytes.Buffer) {
logbuf := gbytes.NewBuffer()
origOut := logrus.StandardLogger().Out
logrus.SetOutput(logbuf)
origLev := logrus.StandardLogger().Level
logrus.SetLevel(level)
return func() {
logrus.SetOutput(origOut)
logrus.SetLevel(origLev)
}, logbuf
}
// Gomega matcher helpers
func withContainerImageName(matcher gt.GomegaMatcher) gt.GomegaMatcher {
return WithTransform(containerImageName, matcher)
}
func containerImageName(container t.Container) string {
return container.ImageName()
}
func havingRestartingState(expected bool) gt.GomegaMatcher {
return WithTransform(func(container t.Container) bool {
return container.ContainerInfo().State.Restarting
}, Equal(expected))
}
func havingRunningState(expected bool) gt.GomegaMatcher {
return WithTransform(func(container t.Container) bool {
return container.ContainerInfo().State.Running
}, Equal(expected))
}

View file

@ -1,19 +1,14 @@
// Package container contains code related to dealing with docker containers
package container package container
import ( import (
"errors"
"fmt" "fmt"
"strconv" "strconv"
"strings" "strings"
"github.com/containrrr/watchtower/internal/util" "github.com/containrrr/watchtower/internal/util"
wt "github.com/containrrr/watchtower/pkg/types"
"github.com/sirupsen/logrus"
"github.com/docker/docker/api/types" "github.com/docker/docker/api/types"
dockercontainer "github.com/docker/docker/api/types/container" dockercontainer "github.com/docker/docker/api/types/container"
"github.com/docker/go-connections/nat"
) )
// NewContainer returns a new Container instance instantiated with the // NewContainer returns a new Container instance instantiated with the
@ -27,41 +22,21 @@ func NewContainer(containerInfo *types.ContainerJSON, imageInfo *types.ImageInsp
// Container represents a running Docker container. // Container represents a running Docker container.
type Container struct { type Container struct {
LinkedToRestarting bool Linked bool
Stale bool Stale bool
containerInfo *types.ContainerJSON containerInfo *types.ContainerJSON
imageInfo *types.ImageInspect imageInfo *types.ImageInspect
} }
// IsLinkedToRestarting returns the current value of the LinkedToRestarting field for the container
func (c *Container) IsLinkedToRestarting() bool {
return c.LinkedToRestarting
}
// IsStale returns the current value of the Stale field for the container
func (c *Container) IsStale() bool {
return c.Stale
}
// SetLinkedToRestarting sets the LinkedToRestarting field for the container
func (c *Container) SetLinkedToRestarting(value bool) {
c.LinkedToRestarting = value
}
// SetStale implements sets the Stale field for the container
func (c *Container) SetStale(value bool) {
c.Stale = value
}
// ContainerInfo fetches JSON info for the container // ContainerInfo fetches JSON info for the container
func (c Container) ContainerInfo() *types.ContainerJSON { func (c Container) ContainerInfo() *types.ContainerJSON {
return c.containerInfo return c.containerInfo
} }
// ID returns the Docker container ID. // ID returns the Docker container ID.
func (c Container) ID() wt.ContainerID { func (c Container) ID() string {
return wt.ContainerID(c.containerInfo.ID) return c.containerInfo.ID
} }
// IsRunning returns a boolean flag indicating whether or not the current // IsRunning returns a boolean flag indicating whether or not the current
@ -71,31 +46,15 @@ func (c Container) IsRunning() bool {
return c.containerInfo.State.Running return c.containerInfo.State.Running
} }
// IsRestarting returns a boolean flag indicating whether or not the current
// container is restarting. The status is determined by the value of the
// container's "State.Restarting" property.
func (c Container) IsRestarting() bool {
return c.containerInfo.State.Restarting
}
// Name returns the Docker container name. // Name returns the Docker container name.
func (c Container) Name() string { func (c Container) Name() string {
return c.containerInfo.Name return c.containerInfo.Name
} }
// ImageID returns the ID of the Docker image that was used to start the // ImageID returns the ID of the Docker image that was used to start the
// container. May cause nil dereference if imageInfo is not set! // container.
func (c Container) ImageID() wt.ImageID { func (c Container) ImageID() string {
return wt.ImageID(c.imageInfo.ID) return c.imageInfo.ID
}
// SafeImageID returns the ID of the Docker image that was used to start the container if available,
// otherwise returns an empty string
func (c Container) SafeImageID() wt.ImageID {
if c.imageInfo == nil {
return ""
}
return wt.ImageID(c.imageInfo.ID)
} }
// ImageName returns the name of the Docker image that was used to start the // ImageName returns the name of the Docker image that was used to start the
@ -131,31 +90,20 @@ func (c Container) Enabled() (bool, bool) {
return parsedBool, true return parsedBool, true
} }
// IsMonitorOnly returns whether the container should only be monitored based on values of // IsMonitorOnly returns the value of the monitor-only label. If the label
// the monitor-only label, the monitor-only argument and the label-take-precedence argument. // is not set then false is returned.
func (c Container) IsMonitorOnly(params wt.UpdateParams) bool { func (c Container) IsMonitorOnly() bool {
return c.getContainerOrGlobalBool(params.MonitorOnly, monitorOnlyLabel, params.LabelPrecedence) rawBool, ok := c.getLabelValue(monitorOnlyLabel)
} if !ok {
return false
// IsNoPull returns whether the image should be pulled based on values of
// the no-pull label, the no-pull argument and the label-take-precedence argument.
func (c Container) IsNoPull(params wt.UpdateParams) bool {
return c.getContainerOrGlobalBool(params.NoPull, noPullLabel, params.LabelPrecedence)
}
func (c Container) getContainerOrGlobalBool(globalVal bool, label string, contPrecedence bool) bool {
if contVal, err := c.getBoolLabelValue(label); err != nil {
if !errors.Is(err, errorLabelNotFound) {
logrus.WithField("error", err).WithField("label", label).Warn("Failed to parse label value")
}
return globalVal
} else {
if contPrecedence {
return contVal
} else {
return contVal || globalVal
}
} }
parsedBool, err := strconv.ParseBool(rawBool)
if err != nil {
return false
}
return parsedBool
} }
// Scope returns the value of the scope UID label and if the label // Scope returns the value of the scope UID label and if the label
@ -177,14 +125,7 @@ func (c Container) Links() []string {
dependsOnLabelValue := c.getLabelValueOrEmpty(dependsOnLabel) dependsOnLabelValue := c.getLabelValueOrEmpty(dependsOnLabel)
if dependsOnLabelValue != "" { if dependsOnLabelValue != "" {
for _, link := range strings.Split(dependsOnLabelValue, ",") { links := strings.Split(dependsOnLabelValue, ",")
// Since the container names need to start with '/', let's prepend it if it's missing
if !strings.HasPrefix(link, "/") {
link = "/" + link
}
links = append(links, link)
}
return links return links
} }
@ -193,13 +134,6 @@ func (c Container) Links() []string {
name := strings.Split(link, ":")[0] name := strings.Split(link, ":")[0]
links = append(links, name) links = append(links, name)
} }
// If the container uses another container for networking, it can be considered an implicit link
// since the container would stop working if the network supplier were to be recreated
networkMode := c.containerInfo.HostConfig.NetworkMode
if networkMode.IsContainer() {
links = append(links, networkMode.ConnectedContainer())
}
} }
return links return links
@ -208,7 +142,7 @@ func (c Container) Links() []string {
// ToRestart return whether the container should be restarted, either because // ToRestart return whether the container should be restarted, either because
// is stale or linked to another stale container. // is stale or linked to another stale container.
func (c Container) ToRestart() bool { func (c Container) ToRestart() bool {
return c.Stale || c.LinkedToRestarting return c.Stale || c.Linked
} }
// IsWatchtower returns a boolean flag indicating whether or not the current // IsWatchtower returns a boolean flag indicating whether or not the current
@ -238,25 +172,6 @@ func (c Container) PreUpdateTimeout() int {
return minutes return minutes
} }
// PostUpdateTimeout checks whether a container has a specific timeout set
// for how long the post-update command is allowed to run. This value is expressed
// either as an integer, in minutes, or as 0 which will allow the command/script
// to run indefinitely. Users should be cautious with the 0 option, as that
// could result in watchtower waiting forever.
func (c Container) PostUpdateTimeout() int {
var minutes int
var err error
val := c.getLabelValueOrEmpty(postUpdateTimeoutLabel)
minutes, err = strconv.Atoi(val)
if err != nil || val == "" {
return 1
}
return minutes
}
// StopSignal returns the custom stop signal (if any) that is encoded in the // StopSignal returns the custom stop signal (if any) that is encoded in the
// container's metadata. If the container has not specified a custom stop // container's metadata. If the container has not specified a custom stop
// signal, the empty string "" is returned. // signal, the empty string "" is returned.
@ -264,23 +179,18 @@ func (c Container) StopSignal() string {
return c.getLabelValueOrEmpty(signalLabel) return c.getLabelValueOrEmpty(signalLabel)
} }
// GetCreateConfig returns the container's current Config converted into a format
// that can be re-submitted to the Docker create API.
//
// Ideally, we'd just be able to take the ContainerConfig from the old container // Ideally, we'd just be able to take the ContainerConfig from the old container
// and use it as the starting point for creating the new container; however, // and use it as the starting point for creating the new container; however,
// the ContainerConfig that comes back from the Inspect call merges the default // the ContainerConfig that comes back from the Inspect call merges the default
// configuration (the stuff specified in the metadata for the image itself) // configuration (the stuff specified in the metadata for the image itself)
// with the overridden configuration (the stuff that you might specify as part // with the overridden configuration (the stuff that you might specify as part
// of the "docker run"). // of the "docker run"). In order to avoid unintentionally overriding the
//
// In order to avoid unintentionally overriding the
// defaults in the new image we need to separate the override options from the // defaults in the new image we need to separate the override options from the
// default options. To do this we have to compare the ContainerConfig for the // default options. To do this we have to compare the ContainerConfig for the
// running container with the ContainerConfig from the image that container was // running container with the ContainerConfig from the image that container was
// started from. This function returns a ContainerConfig which contains just // started from. This function returns a ContainerConfig which contains just
// the options overridden at runtime. // the options overridden at runtime.
func (c Container) GetCreateConfig() *dockercontainer.Config { func (c Container) runtimeConfig() *dockercontainer.Config {
config := c.containerInfo.Config config := c.containerInfo.Config
hostConfig := c.containerInfo.HostConfig hostConfig := c.containerInfo.HostConfig
imageConfig := c.imageInfo.Config imageConfig := c.imageInfo.Config
@ -304,29 +214,6 @@ func (c Container) GetCreateConfig() *dockercontainer.Config {
} }
} }
// Clear HEALTHCHECK configuration (if default)
if config.Healthcheck != nil && imageConfig.Healthcheck != nil {
if util.SliceEqual(config.Healthcheck.Test, imageConfig.Healthcheck.Test) {
config.Healthcheck.Test = nil
}
if config.Healthcheck.Retries == imageConfig.Healthcheck.Retries {
config.Healthcheck.Retries = 0
}
if config.Healthcheck.Interval == imageConfig.Healthcheck.Interval {
config.Healthcheck.Interval = 0
}
if config.Healthcheck.Timeout == imageConfig.Healthcheck.Timeout {
config.Healthcheck.Timeout = 0
}
if config.Healthcheck.StartPeriod == imageConfig.Healthcheck.StartPeriod {
config.Healthcheck.StartPeriod = 0
}
}
config.Env = util.SliceSubtract(config.Env, imageConfig.Env) config.Env = util.SliceSubtract(config.Env, imageConfig.Env)
config.Labels = util.StringMapSubtract(config.Labels, imageConfig.Labels) config.Labels = util.StringMapSubtract(config.Labels, imageConfig.Labels)
@ -347,9 +234,9 @@ func (c Container) GetCreateConfig() *dockercontainer.Config {
return config return config
} }
// GetCreateHostConfig returns the container's current HostConfig with any links // Any links in the HostConfig need to be re-written before they can be
// re-written so that they can be re-submitted to the Docker create API. // re-submitted to the Docker create API.
func (c Container) GetCreateHostConfig() *dockercontainer.HostConfig { func (c Container) hostConfig() *dockercontainer.HostConfig {
hostConfig := c.containerInfo.HostConfig hostConfig := c.containerInfo.HostConfig
for i, link := range hostConfig.Links { for i, link := range hostConfig.Links {
@ -371,34 +258,3 @@ func (c Container) HasImageInfo() bool {
func (c Container) ImageInfo() *types.ImageInspect { func (c Container) ImageInfo() *types.ImageInspect {
return c.imageInfo return c.imageInfo
} }
// VerifyConfiguration checks the container and image configurations for nil references to make sure
// that the container can be recreated once deleted
func (c Container) VerifyConfiguration() error {
if c.imageInfo == nil {
return errorNoImageInfo
}
containerInfo := c.ContainerInfo()
if containerInfo == nil {
return errorNoContainerInfo
}
containerConfig := containerInfo.Config
if containerConfig == nil {
return errorInvalidConfig
}
hostConfig := containerInfo.HostConfig
if hostConfig == nil {
return errorInvalidConfig
}
// Instead of returning an error here, we just create an empty map
// This should allow for updating containers where the exposed ports are missing
if len(hostConfig.PortBindings) > 0 && containerConfig.ExposedPorts == nil {
containerConfig.ExposedPorts = make(map[nat.Port]struct{})
}
return nil
}

View file

@ -1,79 +0,0 @@
package container
import (
"github.com/docker/docker/api/types"
dockerContainer "github.com/docker/docker/api/types/container"
"github.com/docker/go-connections/nat"
)
type MockContainerUpdate func(*types.ContainerJSON, *types.ImageInspect)
func MockContainer(updates ...MockContainerUpdate) *Container {
containerInfo := types.ContainerJSON{
ContainerJSONBase: &types.ContainerJSONBase{
ID: "container_id",
Image: "image",
Name: "test-containrrr",
HostConfig: &dockerContainer.HostConfig{},
},
Config: &dockerContainer.Config{
Labels: map[string]string{},
},
}
image := types.ImageInspect{
ID: "image_id",
Config: &dockerContainer.Config{},
}
for _, update := range updates {
update(&containerInfo, &image)
}
return NewContainer(&containerInfo, &image)
}
func WithPortBindings(portBindingSources ...string) MockContainerUpdate {
return func(c *types.ContainerJSON, i *types.ImageInspect) {
portBindings := nat.PortMap{}
for _, pbs := range portBindingSources {
portBindings[nat.Port(pbs)] = []nat.PortBinding{}
}
c.HostConfig.PortBindings = portBindings
}
}
func WithImageName(name string) MockContainerUpdate {
return func(c *types.ContainerJSON, i *types.ImageInspect) {
c.Config.Image = name
i.RepoTags = append(i.RepoTags, name)
}
}
func WithLinks(links []string) MockContainerUpdate {
return func(c *types.ContainerJSON, i *types.ImageInspect) {
c.HostConfig.Links = links
}
}
func WithLabels(labels map[string]string) MockContainerUpdate {
return func(c *types.ContainerJSON, i *types.ImageInspect) {
c.Config.Labels = labels
}
}
func WithContainerState(state types.ContainerState) MockContainerUpdate {
return func(cnt *types.ContainerJSON, img *types.ImageInspect) {
cnt.State = &state
}
}
func WithHealthcheck(healthConfig dockerContainer.HealthConfig) MockContainerUpdate {
return func(cnt *types.ContainerJSON, img *types.ImageInspect) {
cnt.Config.Healthcheck = &healthConfig
}
}
func WithImageHealthcheck(healthConfig dockerContainer.HealthConfig) MockContainerUpdate {
return func(cnt *types.ContainerJSON, img *types.ImageInspect) {
img.Config.Healthcheck = &healthConfig
}
}

View file

@ -1,13 +0,0 @@
package container_test
import (
"testing"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
)
func TestContainer(t *testing.T) {
RegisterFailHandler(Fail)
RunSpecs(t, "Container Suite")
}

View file

@ -1,167 +1,120 @@
package container package container
import ( import (
"github.com/containrrr/watchtower/pkg/types" "testing"
dc "github.com/docker/docker/api/types/container"
"github.com/docker/go-connections/nat" "github.com/containrrr/watchtower/pkg/container/mocks"
"github.com/containrrr/watchtower/pkg/filters"
"github.com/docker/docker/api/types"
"github.com/docker/docker/api/types/container"
cli "github.com/docker/docker/client"
. "github.com/onsi/ginkgo" . "github.com/onsi/ginkgo"
. "github.com/onsi/gomega" . "github.com/onsi/gomega"
) )
func TestContainer(t *testing.T) {
RegisterFailHandler(Fail)
RunSpecs(t, "Container Suite")
}
var _ = Describe("the container", func() { var _ = Describe("the container", func() {
Describe("VerifyConfiguration", func() { Describe("the client", func() {
When("verifying a container with no image info", func() { var docker *cli.Client
It("should return an error", func() { var client Client
c := MockContainer(WithPortBindings()) BeforeSuite(func() {
c.imageInfo = nil server := mocks.NewMockAPIServer()
err := c.VerifyConfiguration() docker, _ = cli.NewClientWithOpts(
Expect(err).To(Equal(errorNoImageInfo)) cli.WithHost(server.URL),
cli.WithHTTPClient(server.Client()))
client = dockerClient{
api: docker,
pullImages: false,
}
})
It("should return a client for the api", func() {
Expect(client).NotTo(BeNil())
})
When("listing containers without any filter", func() {
It("should return all available containers", func() {
containers, err := client.ListContainers(filters.NoFilter)
Expect(err).NotTo(HaveOccurred())
Expect(len(containers) == 2).To(BeTrue())
}) })
}) })
When("verifying a container with no container info", func() { When("listing containers with a filter matching nothing", func() {
It("should return an error", func() { It("should return an empty array", func() {
c := MockContainer(WithPortBindings()) filter := filters.FilterByNames([]string{"lollercoaster"}, filters.NoFilter)
c.containerInfo = nil containers, err := client.ListContainers(filter)
err := c.VerifyConfiguration() Expect(err).NotTo(HaveOccurred())
Expect(err).To(Equal(errorNoContainerInfo)) Expect(len(containers) == 0).To(BeTrue())
}) })
}) })
When("verifying a container with no config", func() { When("listing containers with a watchtower filter", func() {
It("should return an error", func() { It("should return only the watchtower container", func() {
c := MockContainer(WithPortBindings()) containers, err := client.ListContainers(filters.WatchtowerContainersFilter)
c.containerInfo.Config = nil Expect(err).NotTo(HaveOccurred())
err := c.VerifyConfiguration() Expect(len(containers) == 1).To(BeTrue())
Expect(err).To(Equal(errorInvalidConfig)) Expect(containers[0].ImageName()).To(Equal("containrrr/watchtower:latest"))
}) })
}) })
When("verifying a container with no host config", func() { When(`listing containers with the "include stopped" option`, func() {
It("should return an error", func() { It("should return both stopped and running containers", func() {
c := MockContainer(WithPortBindings()) client = dockerClient{
c.containerInfo.HostConfig = nil api: docker,
err := c.VerifyConfiguration() pullImages: false,
Expect(err).To(Equal(errorInvalidConfig)) includeStopped: true,
}
containers, err := client.ListContainers(filters.NoFilter)
Expect(err).NotTo(HaveOccurred())
Expect(len(containers) > 0).To(BeTrue())
}) })
}) })
When("verifying a container with no port bindings", func() { When(`listing containers with the "include restart" option`, func() {
It("should not return an error", func() { It("should return both stopped, restarting and running containers", func() {
c := MockContainer(WithPortBindings()) client = dockerClient{
err := c.VerifyConfiguration() api: docker,
Expect(err).ToNot(HaveOccurred()) pullImages: false,
includeRestarting: true,
}
containers, err := client.ListContainers(filters.NoFilter)
Expect(err).NotTo(HaveOccurred())
RestartingContainerFound := false
for _, ContainerRunning := range containers {
if ContainerRunning.containerInfo.State.Restarting {
RestartingContainerFound = true
}
}
Expect(RestartingContainerFound).To(BeTrue())
Expect(RestartingContainerFound).NotTo(BeFalse())
}) })
}) })
When("verifying a container with port bindings, but no exposed ports", func() { When(`listing containers without restarting ones`, func() {
It("should make the config compatible with updating", func() { It("should not return restarting containers", func() {
c := MockContainer(WithPortBindings("80/tcp")) client = dockerClient{
c.containerInfo.Config.ExposedPorts = nil api: docker,
Expect(c.VerifyConfiguration()).To(Succeed()) pullImages: false,
includeRestarting: false,
Expect(c.containerInfo.Config.ExposedPorts).ToNot(BeNil()) }
Expect(c.containerInfo.Config.ExposedPorts).To(BeEmpty()) containers, err := client.ListContainers(filters.NoFilter)
}) Expect(err).NotTo(HaveOccurred())
}) RestartingContainerFound := false
When("verifying a container with port bindings and exposed ports is non-nil", func() { for _, ContainerRunning := range containers {
It("should return an error", func() { if ContainerRunning.containerInfo.State.Restarting {
c := MockContainer(WithPortBindings("80/tcp")) RestartingContainerFound = true
c.containerInfo.Config.ExposedPorts = map[nat.Port]struct{}{"80/tcp": {}} }
err := c.VerifyConfiguration() }
Expect(err).ToNot(HaveOccurred()) Expect(RestartingContainerFound).To(BeFalse())
}) Expect(RestartingContainerFound).NotTo(BeTrue())
})
})
Describe("GetCreateConfig", func() {
When("container healthcheck config is equal to image config", func() {
It("should return empty healthcheck values", func() {
c := MockContainer(WithHealthcheck(dc.HealthConfig{
Test: []string{"/usr/bin/sleep", "1s"},
}), WithImageHealthcheck(dc.HealthConfig{
Test: []string{"/usr/bin/sleep", "1s"},
}))
Expect(c.GetCreateConfig().Healthcheck).To(Equal(&dc.HealthConfig{}))
c = MockContainer(WithHealthcheck(dc.HealthConfig{
Timeout: 30,
}), WithImageHealthcheck(dc.HealthConfig{
Timeout: 30,
}))
Expect(c.GetCreateConfig().Healthcheck).To(Equal(&dc.HealthConfig{}))
c = MockContainer(WithHealthcheck(dc.HealthConfig{
StartPeriod: 30,
}), WithImageHealthcheck(dc.HealthConfig{
StartPeriod: 30,
}))
Expect(c.GetCreateConfig().Healthcheck).To(Equal(&dc.HealthConfig{}))
c = MockContainer(WithHealthcheck(dc.HealthConfig{
Retries: 30,
}), WithImageHealthcheck(dc.HealthConfig{
Retries: 30,
}))
Expect(c.GetCreateConfig().Healthcheck).To(Equal(&dc.HealthConfig{}))
})
})
When("container healthcheck config is different to image config", func() {
It("should return the container healthcheck values", func() {
c := MockContainer(WithHealthcheck(dc.HealthConfig{
Test: []string{"/usr/bin/sleep", "1s"},
Interval: 30,
Timeout: 30,
StartPeriod: 10,
Retries: 2,
}), WithImageHealthcheck(dc.HealthConfig{
Test: []string{"/usr/bin/sleep", "10s"},
Interval: 10,
Timeout: 60,
StartPeriod: 30,
Retries: 10,
}))
Expect(c.GetCreateConfig().Healthcheck).To(Equal(&dc.HealthConfig{
Test: []string{"/usr/bin/sleep", "1s"},
Interval: 30,
Timeout: 30,
StartPeriod: 10,
Retries: 2,
}))
})
})
When("container healthcheck config is empty", func() {
It("should not panic", func() {
c := MockContainer(WithImageHealthcheck(dc.HealthConfig{
Test: []string{"/usr/bin/sleep", "10s"},
Interval: 10,
Timeout: 60,
StartPeriod: 30,
Retries: 10,
}))
Expect(c.GetCreateConfig().Healthcheck).To(BeNil())
})
})
When("container image healthcheck config is empty", func() {
It("should not panic", func() {
c := MockContainer(WithHealthcheck(dc.HealthConfig{
Test: []string{"/usr/bin/sleep", "1s"},
Interval: 30,
Timeout: 30,
StartPeriod: 10,
Retries: 2,
}))
Expect(c.GetCreateConfig().Healthcheck).To(Equal(&dc.HealthConfig{
Test: []string{"/usr/bin/sleep", "1s"},
Interval: 30,
Timeout: 30,
StartPeriod: 10,
Retries: 2,
}))
}) })
}) })
}) })
When("asked for metadata", func() { When("asked for metadata", func() {
var c *Container var c *Container
BeforeEach(func() { BeforeEach(func() {
c = MockContainer(WithLabels(map[string]string{ c = mockContainerWithLabels(map[string]string{
"com.centurylinklabs.watchtower.enable": "true", "com.centurylinklabs.watchtower.enable": "true",
"com.centurylinklabs.watchtower": "true", "com.centurylinklabs.watchtower": "true",
})) })
}) })
It("should return its name on calls to .Name()", func() { It("should return its name on calls to .Name()", func() {
name := c.Name() name := c.Name()
@ -171,35 +124,43 @@ var _ = Describe("the container", func() {
It("should return its ID on calls to .ID()", func() { It("should return its ID on calls to .ID()", func() {
id := c.ID() id := c.ID()
Expect(id).To(BeEquivalentTo("container_id")) Expect(id).To(Equal("container_id"))
Expect(id).NotTo(BeEquivalentTo("wrong-id")) Expect(id).NotTo(Equal("wrong-id"))
}) })
It("should return true, true if enabled on calls to .Enabled()", func() { It("should return true, true if enabled on calls to .Enabled()", func() {
enabled, exists := c.Enabled() enabled, exists := c.Enabled()
Expect(enabled).To(BeTrue()) Expect(enabled).To(BeTrue())
Expect(enabled).NotTo(BeFalse())
Expect(exists).To(BeTrue()) Expect(exists).To(BeTrue())
Expect(exists).NotTo(BeFalse())
}) })
It("should return false, true if present but not true on calls to .Enabled()", func() { It("should return false, true if present but not true on calls to .Enabled()", func() {
c = MockContainer(WithLabels(map[string]string{"com.centurylinklabs.watchtower.enable": "false"})) c = mockContainerWithLabels(map[string]string{"com.centurylinklabs.watchtower.enable": "false"})
enabled, exists := c.Enabled() enabled, exists := c.Enabled()
Expect(enabled).To(BeFalse()) Expect(enabled).To(BeFalse())
Expect(enabled).NotTo(BeTrue())
Expect(exists).To(BeTrue()) Expect(exists).To(BeTrue())
Expect(exists).NotTo(BeFalse())
}) })
It("should return false, false if not present on calls to .Enabled()", func() { It("should return false, false if not present on calls to .Enabled()", func() {
c = MockContainer(WithLabels(map[string]string{"lol": "false"})) c = mockContainerWithLabels(map[string]string{"lol": "false"})
enabled, exists := c.Enabled() enabled, exists := c.Enabled()
Expect(enabled).To(BeFalse()) Expect(enabled).To(BeFalse())
Expect(enabled).NotTo(BeTrue())
Expect(exists).To(BeFalse()) Expect(exists).To(BeFalse())
Expect(exists).NotTo(BeTrue())
}) })
It("should return false, false if present but not parsable .Enabled()", func() { It("should return false, false if present but not parsable .Enabled()", func() {
c = MockContainer(WithLabels(map[string]string{"com.centurylinklabs.watchtower.enable": "falsy"})) c = mockContainerWithLabels(map[string]string{"com.centurylinklabs.watchtower.enable": "falsy"})
enabled, exists := c.Enabled() enabled, exists := c.Enabled()
Expect(enabled).To(BeFalse()) Expect(enabled).To(BeFalse())
Expect(enabled).NotTo(BeTrue())
Expect(exists).To(BeFalse()) Expect(exists).To(BeFalse())
Expect(exists).NotTo(BeTrue())
}) })
When("checking if its a watchtower instance", func() { When("checking if its a watchtower instance", func() {
It("should return true if the label is set to true", func() { It("should return true if the label is set to true", func() {
@ -207,31 +168,31 @@ var _ = Describe("the container", func() {
Expect(isWatchtower).To(BeTrue()) Expect(isWatchtower).To(BeTrue())
}) })
It("should return false if the label is present but set to false", func() { It("should return false if the label is present but set to false", func() {
c = MockContainer(WithLabels(map[string]string{"com.centurylinklabs.watchtower": "false"})) c = mockContainerWithLabels(map[string]string{"com.centurylinklabs.watchtower": "false"})
isWatchtower := c.IsWatchtower() isWatchtower := c.IsWatchtower()
Expect(isWatchtower).To(BeFalse()) Expect(isWatchtower).To(BeFalse())
}) })
It("should return false if the label is not present", func() { It("should return false if the label is not present", func() {
c = MockContainer(WithLabels(map[string]string{"funny.label": "false"})) c = mockContainerWithLabels(map[string]string{"funny.label": "false"})
isWatchtower := c.IsWatchtower() isWatchtower := c.IsWatchtower()
Expect(isWatchtower).To(BeFalse()) Expect(isWatchtower).To(BeFalse())
}) })
It("should return false if there are no labels", func() { It("should return false if there are no labels", func() {
c = MockContainer(WithLabels(map[string]string{})) c = mockContainerWithLabels(map[string]string{})
isWatchtower := c.IsWatchtower() isWatchtower := c.IsWatchtower()
Expect(isWatchtower).To(BeFalse()) Expect(isWatchtower).To(BeFalse())
}) })
}) })
When("fetching the custom stop signal", func() { When("fetching the custom stop signal", func() {
It("should return the signal if its set", func() { It("should return the signal if its set", func() {
c = MockContainer(WithLabels(map[string]string{ c = mockContainerWithLabels(map[string]string{
"com.centurylinklabs.watchtower.stop-signal": "SIGKILL", "com.centurylinklabs.watchtower.stop-signal": "SIGKILL",
})) })
stopSignal := c.StopSignal() stopSignal := c.StopSignal()
Expect(stopSignal).To(Equal("SIGKILL")) Expect(stopSignal).To(Equal("SIGKILL"))
}) })
It("should return an empty string if its not set", func() { It("should return an empty string if its not set", func() {
c = MockContainer(WithLabels(map[string]string{})) c = mockContainerWithLabels(map[string]string{})
stopSignal := c.StopSignal() stopSignal := c.StopSignal()
Expect(stopSignal).To(Equal("")) Expect(stopSignal).To(Equal(""))
}) })
@ -239,22 +200,22 @@ var _ = Describe("the container", func() {
When("fetching the image name", func() { When("fetching the image name", func() {
When("the zodiac label is present", func() { When("the zodiac label is present", func() {
It("should fetch the image name from it", func() { It("should fetch the image name from it", func() {
c = MockContainer(WithLabels(map[string]string{ c = mockContainerWithLabels(map[string]string{
"com.centurylinklabs.zodiac.original-image": "the-original-image", "com.centurylinklabs.zodiac.original-image": "the-original-image",
})) })
imageName := c.ImageName() imageName := c.ImageName()
Expect(imageName).To(Equal(imageName)) Expect(imageName).To(Equal(imageName))
}) })
}) })
It("should return the image name", func() { It("should return the image name", func() {
name := "image-name:3" name := "image-name:3"
c = MockContainer(WithImageName(name)) c = mockContainerWithImageName(name)
imageName := c.ImageName() imageName := c.ImageName()
Expect(imageName).To(Equal(name)) Expect(imageName).To(Equal(name))
}) })
It("should assume latest if no tag is supplied", func() { It("should assume latest if no tag is supplied", func() {
name := "image-name" name := "image-name"
c = MockContainer(WithImageName(name)) c = mockContainerWithImageName(name)
imageName := c.ImageName() imageName := c.ImageName()
Expect(imageName).To(Equal(name + ":latest")) Expect(imageName).To(Equal(name + ":latest"))
}) })
@ -263,129 +224,74 @@ var _ = Describe("the container", func() {
When("fetching container links", func() { When("fetching container links", func() {
When("the depends on label is present", func() { When("the depends on label is present", func() {
It("should fetch depending containers from it", func() { It("should fetch depending containers from it", func() {
c = MockContainer(WithLabels(map[string]string{ c = mockContainerWithLabels(map[string]string{
"com.centurylinklabs.watchtower.depends-on": "postgres", "com.centurylinklabs.watchtower.depends-on": "postgres",
})) })
links := c.Links() links := c.Links()
Expect(links).To(SatisfyAll(ContainElement("/postgres"), HaveLen(1))) Expect(links).To(SatisfyAll(ContainElement("postgres"), HaveLen(1)))
}) })
It("should fetch depending containers if there are many", func() { It("should fetch depending containers if there are many", func() {
c = MockContainer(WithLabels(map[string]string{ c = mockContainerWithLabels(map[string]string{
"com.centurylinklabs.watchtower.depends-on": "postgres,redis", "com.centurylinklabs.watchtower.depends-on": "postgres,redis",
})) })
links := c.Links() links := c.Links()
Expect(links).To(SatisfyAll(ContainElement("/postgres"), ContainElement("/redis"), HaveLen(2))) Expect(links).To(SatisfyAll(ContainElement("postgres"), ContainElement("redis"), HaveLen(2)))
})
It("should only add slashes to names when they are missing", func() {
c = MockContainer(WithLabels(map[string]string{
"com.centurylinklabs.watchtower.depends-on": "/postgres,redis",
}))
links := c.Links()
Expect(links).To(SatisfyAll(ContainElement("/postgres"), ContainElement("/redis")))
}) })
It("should fetch depending containers if label is blank", func() { It("should fetch depending containers if label is blank", func() {
c = MockContainer(WithLabels(map[string]string{ c = mockContainerWithLabels(map[string]string{
"com.centurylinklabs.watchtower.depends-on": "", "com.centurylinklabs.watchtower.depends-on": "",
})) })
links := c.Links() links := c.Links()
Expect(links).To(HaveLen(0)) Expect(links).To(HaveLen(0))
}) })
}) })
When("the depends on label is not present", func() { When("the depends on label is not present", func() {
It("should fetch depending containers from host config links", func() { It("should fetch depending containers from host config links", func() {
c = MockContainer(WithLinks([]string{ c = mockContainerWithLinks([]string{
"redis:test-containrrr", "redis:test-containrrr",
"postgres:test-containrrr", "postgres:test-containrrr",
})) })
links := c.Links() links := c.Links()
Expect(links).To(SatisfyAll(ContainElement("redis"), ContainElement("postgres"), HaveLen(2))) Expect(links).To(SatisfyAll(ContainElement("redis"), ContainElement("postgres"), HaveLen(2)))
}) })
}) })
}) })
When("checking no-pull label", func() {
When("no-pull argument is not set", func() {
When("no-pull label is true", func() {
c := MockContainer(WithLabels(map[string]string{
"com.centurylinklabs.watchtower.no-pull": "true",
}))
It("should return true", func() {
Expect(c.IsNoPull(types.UpdateParams{})).To(Equal(true))
})
})
When("no-pull label is false", func() {
c := MockContainer(WithLabels(map[string]string{
"com.centurylinklabs.watchtower.no-pull": "false",
}))
It("should return false", func() {
Expect(c.IsNoPull(types.UpdateParams{})).To(Equal(false))
})
})
When("no-pull label is set to an invalid value", func() {
c := MockContainer(WithLabels(map[string]string{
"com.centurylinklabs.watchtower.no-pull": "maybe",
}))
It("should return false", func() {
Expect(c.IsNoPull(types.UpdateParams{})).To(Equal(false))
})
})
When("no-pull label is unset", func() {
c = MockContainer(WithLabels(map[string]string{}))
It("should return false", func() {
Expect(c.IsNoPull(types.UpdateParams{})).To(Equal(false))
})
})
})
When("no-pull argument is set to true", func() {
When("no-pull label is true", func() {
c := MockContainer(WithLabels(map[string]string{
"com.centurylinklabs.watchtower.no-pull": "true",
}))
It("should return true", func() {
Expect(c.IsNoPull(types.UpdateParams{NoPull: true})).To(Equal(true))
})
})
When("no-pull label is false", func() {
c := MockContainer(WithLabels(map[string]string{
"com.centurylinklabs.watchtower.no-pull": "false",
}))
It("should return true", func() {
Expect(c.IsNoPull(types.UpdateParams{NoPull: true})).To(Equal(true))
})
})
When("label-take-precedence argument is set to true", func() {
When("no-pull label is true", func() {
c := MockContainer(WithLabels(map[string]string{
"com.centurylinklabs.watchtower.no-pull": "true",
}))
It("should return true", func() {
Expect(c.IsNoPull(types.UpdateParams{LabelPrecedence: true, NoPull: true})).To(Equal(true))
})
})
When("no-pull label is false", func() {
c := MockContainer(WithLabels(map[string]string{
"com.centurylinklabs.watchtower.no-pull": "false",
}))
It("should return false", func() {
Expect(c.IsNoPull(types.UpdateParams{LabelPrecedence: true, NoPull: true})).To(Equal(false))
})
})
})
})
})
When("there is a pre or post update timeout", func() {
It("should return minute values", func() {
c = MockContainer(WithLabels(map[string]string{
"com.centurylinklabs.watchtower.lifecycle.pre-update-timeout": "3",
"com.centurylinklabs.watchtower.lifecycle.post-update-timeout": "5",
}))
preTimeout := c.PreUpdateTimeout()
Expect(preTimeout).To(Equal(3))
postTimeout := c.PostUpdateTimeout()
Expect(postTimeout).To(Equal(5))
})
})
}) })
}) })
func mockContainerWithImageName(name string) *Container {
container := mockContainerWithLabels(nil)
container.containerInfo.Config.Image = name
return container
}
func mockContainerWithLinks(links []string) *Container {
content := types.ContainerJSON{
ContainerJSONBase: &types.ContainerJSONBase{
ID: "container_id",
Image: "image",
Name: "test-containrrr",
HostConfig: &container.HostConfig{
Links: links,
},
},
Config: &container.Config{
Labels: map[string]string{},
},
}
return NewContainer(&content, nil)
}
func mockContainerWithLabels(labels map[string]string) *Container {
content := types.ContainerJSON{
ContainerJSONBase: &types.ContainerJSONBase{
ID: "container_id",
Image: "image",
Name: "test-containrrr",
},
Config: &container.Config{
Labels: labels,
},
}
return NewContainer(&content, nil)
}

View file

@ -1,8 +0,0 @@
package container
import "errors"
var errorNoImageInfo = errors.New("no available image info")
var errorNoContainerInfo = errors.New("no available container info")
var errorInvalidConfig = errors.New("container configuration missing or invalid")
var errorLabelNotFound = errors.New("label was not found in container")

View file

@ -1,22 +1,18 @@
package container package container
import "strconv"
const ( const (
watchtowerLabel = "com.centurylinklabs.watchtower" watchtowerLabel = "com.centurylinklabs.watchtower"
signalLabel = "com.centurylinklabs.watchtower.stop-signal" signalLabel = "com.centurylinklabs.watchtower.stop-signal"
enableLabel = "com.centurylinklabs.watchtower.enable" enableLabel = "com.centurylinklabs.watchtower.enable"
monitorOnlyLabel = "com.centurylinklabs.watchtower.monitor-only" monitorOnlyLabel = "com.centurylinklabs.watchtower.monitor-only"
noPullLabel = "com.centurylinklabs.watchtower.no-pull" dependsOnLabel = "com.centurylinklabs.watchtower.depends-on"
dependsOnLabel = "com.centurylinklabs.watchtower.depends-on" zodiacLabel = "com.centurylinklabs.zodiac.original-image"
zodiacLabel = "com.centurylinklabs.zodiac.original-image" scope = "com.centurylinklabs.watchtower.scope"
scope = "com.centurylinklabs.watchtower.scope" preCheckLabel = "com.centurylinklabs.watchtower.lifecycle.pre-check"
preCheckLabel = "com.centurylinklabs.watchtower.lifecycle.pre-check" postCheckLabel = "com.centurylinklabs.watchtower.lifecycle.post-check"
postCheckLabel = "com.centurylinklabs.watchtower.lifecycle.post-check" preUpdateLabel = "com.centurylinklabs.watchtower.lifecycle.pre-update"
preUpdateLabel = "com.centurylinklabs.watchtower.lifecycle.pre-update" postUpdateLabel = "com.centurylinklabs.watchtower.lifecycle.post-update"
postUpdateLabel = "com.centurylinklabs.watchtower.lifecycle.post-update" preUpdateTimeoutLabel = "com.centurylinklabs.watchtower.lifecycle.pre-update-timeout"
preUpdateTimeoutLabel = "com.centurylinklabs.watchtower.lifecycle.pre-update-timeout"
postUpdateTimeoutLabel = "com.centurylinklabs.watchtower.lifecycle.post-update-timeout"
) )
// GetLifecyclePreCheckCommand returns the pre-check command set in the container metadata or an empty string // GetLifecyclePreCheckCommand returns the pre-check command set in the container metadata or an empty string
@ -57,11 +53,3 @@ func (c Container) getLabelValue(label string) (string, bool) {
val, ok := c.containerInfo.Config.Labels[label] val, ok := c.containerInfo.Config.Labels[label]
return val, ok return val, ok
} }
func (c Container) getBoolLabelValue(label string) (bool, error) {
if strVal, ok := c.containerInfo.Config.Labels[label]; ok {
value, err := strconv.ParseBool(strVal)
return value, err
}
return false, errorLabelNotFound
}

View file

@ -3,278 +3,75 @@ package mocks
import ( import (
"encoding/json" "encoding/json"
"fmt" "fmt"
"github.com/onsi/ginkgo" "io/ioutil"
"net/http" "net/http"
"net/url" "net/http/httptest"
"os"
"path/filepath" "path/filepath"
"strings" "strings"
t "github.com/containrrr/watchtower/pkg/types"
"github.com/docker/docker/api/types" "github.com/docker/docker/api/types"
"github.com/docker/docker/api/types/filters" "github.com/sirupsen/logrus"
O "github.com/onsi/gomega"
"github.com/onsi/gomega/ghttp"
) )
func getMockJSONFile(relPath string) ([]byte, error) { // NewMockAPIServer returns a mocked docker api server that responds to some fixed requests
absPath, _ := filepath.Abs(relPath) // used in the test suite.
buf, err := os.ReadFile(absPath) func NewMockAPIServer() *httptest.Server {
if err != nil { return httptest.NewServer(http.HandlerFunc(
return nil, fmt.Errorf("mock JSON file %q not found: %e", absPath, err)
}
return buf, nil
}
// RespondWithJSONFile handles a request by returning the contents of the supplied file
func RespondWithJSONFile(relPath string, statusCode int, optionalHeader ...http.Header) http.HandlerFunc {
handler, err := respondWithJSONFile(relPath, statusCode, optionalHeader...)
O.ExpectWithOffset(1, err).ShouldNot(O.HaveOccurred())
return handler
}
func respondWithJSONFile(relPath string, statusCode int, optionalHeader ...http.Header) (http.HandlerFunc, error) {
buf, err := getMockJSONFile(relPath)
if err != nil {
return nil, err
}
return ghttp.RespondWith(statusCode, buf, optionalHeader...), nil
}
// GetContainerHandlers returns the handlers serving lookups for the supplied container mock files
func GetContainerHandlers(containerRefs ...*ContainerRef) []http.HandlerFunc {
handlers := make([]http.HandlerFunc, 0, len(containerRefs)*3)
for _, containerRef := range containerRefs {
handlers = append(handlers, getContainerFileHandler(containerRef))
// Also append any containers that the container references, if any
for _, ref := range containerRef.references {
handlers = append(handlers, getContainerFileHandler(ref))
}
// Also append the image request since that will be called for every container
handlers = append(handlers, getImageHandler(containerRef.image.id,
RespondWithJSONFile(containerRef.image.getFileName(), http.StatusOK),
))
}
return handlers
}
func createFilterArgs(statuses []string) filters.Args {
args := filters.NewArgs()
for _, status := range statuses {
args.Add("status", status)
}
return args
}
var defaultImage = imageRef{
// watchtower
id: t.ImageID("sha256:4dbc5f9c07028a985e14d1393e849ea07f68804c4293050d5a641b138db72daa"),
file: "default",
}
var Watchtower = ContainerRef{
name: "watchtower",
id: "3d88e0e3543281c747d88b27e246578b65ae8964ba86c7cd7522cf84e0978134",
image: &defaultImage,
}
var Stopped = ContainerRef{
name: "stopped",
id: "ae8964ba86c7cd7522cf84e09781343d88e0e3543281c747d88b27e246578b65",
image: &defaultImage,
}
var Running = ContainerRef{
name: "running",
id: "b978af0b858aa8855cce46b628817d4ed58e58f2c4f66c9b9c5449134ed4c008",
image: &imageRef{
// portainer
id: t.ImageID("sha256:19d07168491a3f9e2798a9bed96544e34d57ddc4757a4ac5bb199dea896c87fd"),
file: "running",
},
}
var Restarting = ContainerRef{
name: "restarting",
id: "ae8964ba86c7cd7522cf84e09781343d88e0e3543281c747d88b27e246578b67",
image: &defaultImage,
}
var netSupplierOK = ContainerRef{
id: "25e75393800b5c450a6841212a3b92ed28fa35414a586dec9f2c8a520d4910c2",
name: "net_supplier",
image: &imageRef{
// gluetun
id: t.ImageID("sha256:c22b543d33bfdcb9992cbef23961677133cdf09da71d782468ae2517138bad51"),
file: "net_producer",
},
}
var netSupplierNotFound = ContainerRef{
id: NetSupplierNotFoundID,
name: netSupplierOK.name,
isMissing: true,
}
// NetConsumerOK is used for testing `container` networking mode
// returns a container that consumes an existing supplier container
var NetConsumerOK = ContainerRef{
id: "1f6b79d2aff23244382026c76f4995851322bed5f9c50631620162f6f9aafbd6",
name: "net_consumer",
image: &imageRef{
id: t.ImageID("sha256:904b8cb13b932e23230836850610fa45dce9eb0650d5618c2b1487c2a4f577b8"), // nginx
file: "net_consumer",
},
references: []*ContainerRef{&netSupplierOK},
}
// NetConsumerInvalidSupplier is used for testing `container` networking mode
// returns a container that references a supplying container that does not exist
var NetConsumerInvalidSupplier = ContainerRef{
id: NetConsumerOK.id,
name: "net_consumer-missing_supplier",
image: NetConsumerOK.image,
references: []*ContainerRef{&netSupplierNotFound},
}
const NetSupplierNotFoundID = "badc1dbadc1dbadc1dbadc1dbadc1dbadc1dbadc1dbadc1dbadc1dbadc1dbadc"
const NetSupplierContainerName = "/wt-contnet-producer-1"
func getContainerFileHandler(cr *ContainerRef) http.HandlerFunc {
if cr.isMissing {
return containerNotFoundResponse(string(cr.id))
}
containerFile, err := cr.getContainerFile()
if err != nil {
ginkgo.Fail(fmt.Sprintf("Failed to get container mock file: %v", err))
}
return getContainerHandler(
string(cr.id),
RespondWithJSONFile(containerFile, http.StatusOK),
)
}
func getContainerHandler(containerId string, responseHandler http.HandlerFunc) http.HandlerFunc {
return ghttp.CombineHandlers(
ghttp.VerifyRequest("GET", O.HaveSuffix("/containers/%v/json", containerId)),
responseHandler,
)
}
// GetContainerHandler mocks the GET containers/{id}/json endpoint
func GetContainerHandler(containerID string, containerInfo *types.ContainerJSON) http.HandlerFunc {
responseHandler := containerNotFoundResponse(containerID)
if containerInfo != nil {
responseHandler = ghttp.RespondWithJSONEncoded(http.StatusOK, containerInfo)
}
return getContainerHandler(containerID, responseHandler)
}
// GetImageHandler mocks the GET images/{id}/json endpoint
func GetImageHandler(imageInfo *types.ImageInspect) http.HandlerFunc {
return getImageHandler(t.ImageID(imageInfo.ID), ghttp.RespondWithJSONEncoded(http.StatusOK, imageInfo))
}
// ListContainersHandler mocks the GET containers/json endpoint, filtering the returned containers based on statuses
func ListContainersHandler(statuses ...string) http.HandlerFunc {
filterArgs := createFilterArgs(statuses)
bytes, err := filterArgs.MarshalJSON()
O.ExpectWithOffset(1, err).ShouldNot(O.HaveOccurred())
query := url.Values{
"filters": []string{string(bytes)},
}
return ghttp.CombineHandlers(
ghttp.VerifyRequest("GET", O.HaveSuffix("containers/json"), query.Encode()),
respondWithFilteredContainers(filterArgs),
)
}
func respondWithFilteredContainers(filters filters.Args) http.HandlerFunc {
containersJSON, err := getMockJSONFile("./mocks/data/containers.json")
O.ExpectWithOffset(2, err).ShouldNot(O.HaveOccurred())
var filteredContainers []types.Container
var containers []types.Container
O.ExpectWithOffset(2, json.Unmarshal(containersJSON, &containers)).To(O.Succeed())
for _, v := range containers {
for _, key := range filters.Get("status") {
if v.State == key {
filteredContainers = append(filteredContainers, v)
}
}
}
return ghttp.RespondWithJSONEncoded(http.StatusOK, filteredContainers)
}
func getImageHandler(imageId t.ImageID, responseHandler http.HandlerFunc) http.HandlerFunc {
return ghttp.CombineHandlers(
ghttp.VerifyRequest("GET", O.HaveSuffix("/images/%s/json", imageId)),
responseHandler,
)
}
// KillContainerHandler mocks the POST containers/{id}/kill endpoint
func KillContainerHandler(containerID string, found FoundStatus) http.HandlerFunc {
responseHandler := noContentStatusResponse
if !found {
responseHandler = containerNotFoundResponse(containerID)
}
return ghttp.CombineHandlers(
ghttp.VerifyRequest("POST", O.HaveSuffix("containers/%s/kill", containerID)),
responseHandler,
)
}
// RemoveContainerHandler mocks the DELETE containers/{id} endpoint
func RemoveContainerHandler(containerID string, found FoundStatus) http.HandlerFunc {
responseHandler := noContentStatusResponse
if !found {
responseHandler = containerNotFoundResponse(containerID)
}
return ghttp.CombineHandlers(
ghttp.VerifyRequest("DELETE", O.HaveSuffix("containers/%s", containerID)),
responseHandler,
)
}
func containerNotFoundResponse(containerID string) http.HandlerFunc {
return ghttp.RespondWithJSONEncoded(http.StatusNotFound, struct{ message string }{message: "No such container: " + string(containerID)})
}
var noContentStatusResponse = ghttp.RespondWith(http.StatusNoContent, nil)
type FoundStatus bool
const (
Found FoundStatus = true
Missing FoundStatus = false
)
// RemoveImageHandler mocks the DELETE images/ID endpoint, simulating removal of the given imagesWithParents
func RemoveImageHandler(imagesWithParents map[string][]string) http.HandlerFunc {
return ghttp.CombineHandlers(
ghttp.VerifyRequest("DELETE", O.MatchRegexp("/images/.*")),
func(w http.ResponseWriter, r *http.Request) { func(w http.ResponseWriter, r *http.Request) {
parts := strings.Split(r.URL.Path, `/`) logrus.Debug("Mock server has received a HTTP call on ", r.URL)
image := parts[len(parts)-1] var response = ""
if parents, found := imagesWithParents[image]; found { if isRequestFor("filters=", r) {
items := []types.ImageDeleteResponseItem{
{Untagged: image}, Filters := r.URL.Query().Get("filters")
{Deleted: image}, var result map[string]interface{}
json.Unmarshal([]byte(Filters), &result)
status := result["status"].(map[string]interface{})
response = getMockJSONFromDisk("./mocks/data/containers.json")
var x2 []types.Container
var containers []types.Container
json.Unmarshal([]byte(response), &containers)
for _, v := range containers {
for key := range status {
if v.State == key {
x2 = append(x2, v)
}
}
} }
for _, parent := range parents {
items = append(items, types.ImageDeleteResponseItem{Deleted: parent}) b, _ := json.Marshal(x2)
} response = string(b)
ghttp.RespondWithJSONEncoded(http.StatusOK, items)(w, r)
} else { } else if isRequestFor("containers/json?limit=0", r) {
ghttp.RespondWithJSONEncoded(http.StatusNotFound, struct{ message string }{ response = getMockJSONFromDisk("./mocks/data/containers.json")
message: "Something went wrong.", } else if isRequestFor("ae8964ba86c7cd7522cf84e09781343d88e0e3543281c747d88b27e246578b65", r) {
})(w, r) response = getMockJSONFromDisk("./mocks/data/container_stopped.json")
} else if isRequestFor("b978af0b858aa8855cce46b628817d4ed58e58f2c4f66c9b9c5449134ed4c008", r) {
response = getMockJSONFromDisk("./mocks/data/container_running.json")
} else if isRequestFor("ae8964ba86c7cd7522cf84e09781343d88e0e3543281c747d88b27e246578b67", r) {
response = getMockJSONFromDisk("./mocks/data/container_restarting.json")
} else if isRequestFor("sha256:19d07168491a3f9e2798a9bed96544e34d57ddc4757a4ac5bb199dea896c87fd", r) {
response = getMockJSONFromDisk("./mocks/data/image01.json")
} else if isRequestFor("sha256:4dbc5f9c07028a985e14d1393e849ea07f68804c4293050d5a641b138db72daa", r) {
response = getMockJSONFromDisk("./mocks/data/image02.json")
} }
fmt.Fprintln(w, response)
}, },
) ))
}
func isRequestFor(urlPart string, r *http.Request) bool {
return strings.Contains(r.URL.String(), urlPart)
}
func getMockJSONFromDisk(relPath string) string {
absPath, _ := filepath.Abs(relPath)
logrus.Error(absPath)
buf, err := ioutil.ReadFile(absPath)
if err != nil {
logrus.Error(err)
return ""
}
return string(buf)
} }

View file

@ -78,17 +78,3 @@ func (_m *FilterableContainer) Scope() (string, bool) {
return r0, r1 return r0, r1
} }
// ImageName provides a mock function with given fields:
func (_m *FilterableContainer) ImageName() string {
ret := _m.Called()
var r0 string
if rf, ok := ret.Get(0).(func() string); ok {
r0 = rf()
} else {
r0 = ret.Get(0).(string)
}
return r0
}

View file

@ -1,42 +0,0 @@
package mocks
import (
"fmt"
"os"
t "github.com/containrrr/watchtower/pkg/types"
)
type imageRef struct {
id t.ImageID
file string
}
func (ir *imageRef) getFileName() string {
return fmt.Sprintf("./mocks/data/image_%v.json", ir.file)
}
type ContainerRef struct {
name string
id t.ContainerID
image *imageRef
file string
references []*ContainerRef
isMissing bool
}
func (cr *ContainerRef) getContainerFile() (containerFile string, err error) {
file := cr.file
if file == "" {
file = cr.name
}
containerFile = fmt.Sprintf("./mocks/data/container_%v.json", file)
_, err = os.Stat(containerFile)
return containerFile, err
}
func (cr *ContainerRef) ContainerID() t.ContainerID {
return cr.id
}

View file

@ -1,205 +0,0 @@
{
"Id": "1f6b79d2aff23244382026c76f4995851322bed5f9c50631620162f6f9aafbd6",
"Created": "2023-07-25T14:55:14.69155887Z",
"Path": "/docker-entrypoint.sh",
"Args": [
"nginx",
"-g",
"daemon off;"
],
"State": {
"Status": "running",
"Running": true,
"Paused": false,
"Restarting": false,
"OOMKilled": false,
"Dead": false,
"Pid": 3743,
"ExitCode": 0,
"Error": "",
"StartedAt": "2023-07-25T14:55:15.299654437Z",
"FinishedAt": "0001-01-01T00:00:00Z"
},
"Image": "sha256:904b8cb13b932e23230836850610fa45dce9eb0650d5618c2b1487c2a4f577b8",
"ResolvConfPath": "/var/lib/docker/containers/25e75393800b5c450a6841212a3b92ed28fa35414a586dec9f2c8a520d4910c2/resolv.conf",
"HostnamePath": "/var/lib/docker/containers/25e75393800b5c450a6841212a3b92ed28fa35414a586dec9f2c8a520d4910c2/hostname",
"HostsPath": "/var/lib/docker/containers/25e75393800b5c450a6841212a3b92ed28fa35414a586dec9f2c8a520d4910c2/hosts",
"LogPath": "/var/lib/docker/containers/1f6b79d2aff23244382026c76f4995851322bed5f9c50631620162f6f9aafbd6/1f6b79d2aff23244382026c76f4995851322bed5f9c50631620162f6f9aafbd6-json.log",
"Name": "/wt-contnet-consumer-1",
"RestartCount": 0,
"Driver": "overlay2",
"Platform": "linux",
"MountLabel": "",
"ProcessLabel": "",
"AppArmorProfile": "",
"ExecIDs": null,
"HostConfig": {
"Binds": null,
"ContainerIDFile": "",
"LogConfig": {
"Type": "json-file",
"Config": {}
},
"NetworkMode": "container:badc1dbadc1dbadc1dbadc1dbadc1dbadc1dbadc1dbadc1dbadc1dbadc1dbadc",
"PortBindings": {},
"RestartPolicy": {
"Name": "",
"MaximumRetryCount": 0
},
"AutoRemove": false,
"VolumeDriver": "",
"VolumesFrom": null,
"ConsoleSize": [
0,
0
],
"CapAdd": null,
"CapDrop": null,
"CgroupnsMode": "host",
"Dns": null,
"DnsOptions": null,
"DnsSearch": null,
"ExtraHosts": [],
"GroupAdd": null,
"IpcMode": "private",
"Cgroup": "",
"Links": null,
"OomScoreAdj": 0,
"PidMode": "",
"Privileged": false,
"PublishAllPorts": false,
"ReadonlyRootfs": false,
"SecurityOpt": null,
"UTSMode": "",
"UsernsMode": "",
"ShmSize": 67108864,
"Runtime": "runc",
"Isolation": "",
"CpuShares": 0,
"Memory": 0,
"NanoCpus": 0,
"CgroupParent": "",
"BlkioWeight": 0,
"BlkioWeightDevice": null,
"BlkioDeviceReadBps": null,
"BlkioDeviceWriteBps": null,
"BlkioDeviceReadIOps": null,
"BlkioDeviceWriteIOps": null,
"CpuPeriod": 0,
"CpuQuota": 0,
"CpuRealtimePeriod": 0,
"CpuRealtimeRuntime": 0,
"CpusetCpus": "",
"CpusetMems": "",
"Devices": null,
"DeviceCgroupRules": null,
"DeviceRequests": null,
"MemoryReservation": 0,
"MemorySwap": 0,
"MemorySwappiness": null,
"OomKillDisable": false,
"PidsLimit": null,
"Ulimits": null,
"CpuCount": 0,
"CpuPercent": 0,
"IOMaximumIOps": 0,
"IOMaximumBandwidth": 0,
"MaskedPaths": [
"/proc/asound",
"/proc/acpi",
"/proc/kcore",
"/proc/keys",
"/proc/latency_stats",
"/proc/timer_list",
"/proc/timer_stats",
"/proc/sched_debug",
"/proc/scsi",
"/sys/firmware"
],
"ReadonlyPaths": [
"/proc/bus",
"/proc/fs",
"/proc/irq",
"/proc/sys",
"/proc/sysrq-trigger"
]
},
"GraphDriver": {
"Data": {
"LowerDir": "/var/lib/docker/overlay2/05501c86219af9f713c74c129426cf5a17dc5e42f96f7f881f443cab100280e2-init/diff:/var/lib/docker/overlay2/105427179e5628eb7e893d53e21f42f9e76278f8b5665387ecdeed54a7231137/diff:/var/lib/docker/overlay2/09785ba17f27c783ef8b44f369f9aac0ca936000b57abf22b3c54d1e6eb8e27b/diff:/var/lib/docker/overlay2/6f8acd64ae44fd4d14bcb90c105eceba46854aa3985b5b6b317bcc5692cfc286/diff:/var/lib/docker/overlay2/73d41c15edb21c5f12cf53e313f48b5da55283aafc77d35b7bc662241879d7e7/diff:/var/lib/docker/overlay2/d97b55f3d966ae031492369a98e9e00d2bd31e520290fe2034e0a2b1ed77c91e/diff:/var/lib/docker/overlay2/053e9ca65c6b64cb9d98a812ff7488c7e77938b4fb8e0c4d2ad7f8ec235f0f20/diff",
"MergedDir": "/var/lib/docker/overlay2/05501c86219af9f713c74c129426cf5a17dc5e42f96f7f881f443cab100280e2/merged",
"UpperDir": "/var/lib/docker/overlay2/05501c86219af9f713c74c129426cf5a17dc5e42f96f7f881f443cab100280e2/diff",
"WorkDir": "/var/lib/docker/overlay2/05501c86219af9f713c74c129426cf5a17dc5e42f96f7f881f443cab100280e2/work"
},
"Name": "overlay2"
},
"Mounts": [],
"Config": {
"Hostname": "25e75393800b",
"Domainname": "",
"User": "",
"AttachStdin": false,
"AttachStdout": true,
"AttachStderr": true,
"ExposedPorts": {
"80/tcp": {}
},
"Tty": false,
"OpenStdin": false,
"StdinOnce": false,
"Env": [
"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
"NGINX_VERSION=1.23.3",
"NJS_VERSION=0.7.9",
"PKG_RELEASE=1~bullseye"
],
"Cmd": [
"nginx",
"-g",
"daemon off;"
],
"Image": "nginx",
"Volumes": null,
"WorkingDir": "",
"Entrypoint": [
"/docker-entrypoint.sh"
],
"OnBuild": null,
"Labels": {
"com.docker.compose.config-hash": "8bb0e1c8c61f6d495840ba9133ebfb1e4ffda3e1adb701a011b03951848bb9fa",
"com.docker.compose.container-number": "1",
"com.docker.compose.depends_on": "producer:service_started:false",
"com.docker.compose.image": "sha256:904b8cb13b932e23230836850610fa45dce9eb0650d5618c2b1487c2a4f577b8",
"com.docker.compose.oneoff": "False",
"com.docker.compose.project": "wt-contnet",
"com.docker.compose.project.config_files": "/tmp/wt-contnet/docker-compose.yaml",
"com.docker.compose.project.working_dir": "/tmp/wt-contnet",
"com.docker.compose.replace": "07bb70608f96f577aa02b9f317500e23e691c94eb099f6fb52301dfb031d0668",
"com.docker.compose.service": "consumer",
"com.docker.compose.version": "2.19.1",
"desktop.docker.io/wsl-distro": "Ubuntu",
"maintainer": "NGINX Docker Maintainers \u003cdocker-maint@nginx.com\u003e"
},
"StopSignal": "SIGQUIT"
},
"NetworkSettings": {
"Bridge": "",
"SandboxID": "",
"HairpinMode": false,
"LinkLocalIPv6Address": "",
"LinkLocalIPv6PrefixLen": 0,
"Ports": {},
"SandboxKey": "",
"SecondaryIPAddresses": null,
"SecondaryIPv6Addresses": null,
"EndpointID": "",
"Gateway": "",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"IPAddress": "",
"IPPrefixLen": 0,
"IPv6Gateway": "",
"MacAddress": "",
"Networks": {}
}
}

View file

@ -1,205 +0,0 @@
{
"Id": "1f6b79d2aff23244382026c76f4995851322bed5f9c50631620162f6f9aafbd6",
"Created": "2023-07-25T14:55:14.69155887Z",
"Path": "/docker-entrypoint.sh",
"Args": [
"nginx",
"-g",
"daemon off;"
],
"State": {
"Status": "running",
"Running": true,
"Paused": false,
"Restarting": false,
"OOMKilled": false,
"Dead": false,
"Pid": 3743,
"ExitCode": 0,
"Error": "",
"StartedAt": "2023-07-25T14:55:15.299654437Z",
"FinishedAt": "0001-01-01T00:00:00Z"
},
"Image": "sha256:904b8cb13b932e23230836850610fa45dce9eb0650d5618c2b1487c2a4f577b8",
"ResolvConfPath": "/var/lib/docker/containers/25e75393800b5c450a6841212a3b92ed28fa35414a586dec9f2c8a520d4910c2/resolv.conf",
"HostnamePath": "/var/lib/docker/containers/25e75393800b5c450a6841212a3b92ed28fa35414a586dec9f2c8a520d4910c2/hostname",
"HostsPath": "/var/lib/docker/containers/25e75393800b5c450a6841212a3b92ed28fa35414a586dec9f2c8a520d4910c2/hosts",
"LogPath": "/var/lib/docker/containers/1f6b79d2aff23244382026c76f4995851322bed5f9c50631620162f6f9aafbd6/1f6b79d2aff23244382026c76f4995851322bed5f9c50631620162f6f9aafbd6-json.log",
"Name": "/wt-contnet-consumer-1",
"RestartCount": 0,
"Driver": "overlay2",
"Platform": "linux",
"MountLabel": "",
"ProcessLabel": "",
"AppArmorProfile": "",
"ExecIDs": null,
"HostConfig": {
"Binds": null,
"ContainerIDFile": "",
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View file

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}

View file

@ -21,7 +21,7 @@
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View file

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View file

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View file

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"sha256:78a822fe2a2d2c84f3de4a403188c45f623017d6a4521d23047c9fbb0801794c",
"sha256:122dbeefc08382d88b3fe57ad81c1e2428af5b81c172d112723a33e2a20fe880",
"sha256:3d215e55b88a99dcd7cf4349618326ab129771e12fdf6c6ef5cbb71a265dbb6c"
]
},
"Metadata": {
"LastTagTime": "0001-01-01T00:00:00Z"
}
}

View file

@ -1,50 +0,0 @@
package container_test
import (
wt "github.com/containrrr/watchtower/pkg/types"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
)
var _ = Describe("container utils", func() {
Describe("ShortID", func() {
When("given a normal image ID", func() {
When("it contains a sha256 prefix", func() {
It("should return that ID in short version", func() {
actual := shortID("sha256:0123456789abcd00000000001111111111222222222233333333334444444444")
Expect(actual).To(Equal("0123456789ab"))
})
})
When("it doesn't contain a prefix", func() {
It("should return that ID in short version", func() {
actual := shortID("0123456789abcd00000000001111111111222222222233333333334444444444")
Expect(actual).To(Equal("0123456789ab"))
})
})
})
When("given a short image ID", func() {
When("it contains no prefix", func() {
It("should return the same string", func() {
Expect(shortID("0123456789ab")).To(Equal("0123456789ab"))
})
})
When("it contains a the sha256 prefix", func() {
It("should return the ID without the prefix", func() {
Expect(shortID("sha256:0123456789ab")).To(Equal("0123456789ab"))
})
})
})
When("given an ID with an unknown prefix", func() {
It("should return a short version of that ID including the prefix", func() {
Expect(shortID("md5:0123456789ab")).To(Equal("md5:0123456789ab"))
Expect(shortID("md5:0123456789abcdefg")).To(Equal("md5:0123456789ab"))
Expect(shortID("md5:01")).To(Equal("md5:01"))
})
})
})
})
func shortID(id string) string {
// Proxy to the types implementation, relocated due to package dependency resolution
return wt.ImageID(id).ShortID()
}

View file

@ -1,10 +1,8 @@
package filters package filters
import ( import (
"regexp"
"strings"
t "github.com/containrrr/watchtower/pkg/types" t "github.com/containrrr/watchtower/pkg/types"
"strings"
) )
// WatchtowerContainersFilter filters only watchtower containers // WatchtowerContainersFilter filters only watchtower containers
@ -13,7 +11,7 @@ func WatchtowerContainersFilter(c t.FilterableContainer) bool { return c.IsWatch
// NoFilter will not filter out any containers // NoFilter will not filter out any containers
func NoFilter(t.FilterableContainer) bool { return true } func NoFilter(t.FilterableContainer) bool { return true }
// FilterByNames returns all containers that match one of the specified names // FilterByNames returns all containers that match the specified name
func FilterByNames(names []string, baseFilter t.Filter) t.Filter { func FilterByNames(names []string, baseFilter t.Filter) t.Filter {
if len(names) == 0 { if len(names) == 0 {
return baseFilter return baseFilter
@ -21,42 +19,14 @@ func FilterByNames(names []string, baseFilter t.Filter) t.Filter {
return func(c t.FilterableContainer) bool { return func(c t.FilterableContainer) bool {
for _, name := range names { for _, name := range names {
if name == c.Name() || name == c.Name()[1:] { if (name == c.Name()) || (name == c.Name()[1:]) {
return baseFilter(c) return baseFilter(c)
} }
if re, err := regexp.Compile(name); err == nil {
indices := re.FindStringIndex(c.Name())
if indices == nil {
continue
}
start := indices[0]
end := indices[1]
if start <= 1 && end >= len(c.Name())-1 {
return baseFilter(c)
}
}
} }
return false return false
} }
} }
// FilterByDisableNames returns all containers that don't match any of the specified names
func FilterByDisableNames(disableNames []string, baseFilter t.Filter) t.Filter {
if len(disableNames) == 0 {
return baseFilter
}
return func(c t.FilterableContainer) bool {
for _, name := range disableNames {
if name == c.Name() || name == c.Name()[1:] {
return false
}
}
return baseFilter(c)
}
}
// FilterByEnableLabel returns all containers that have the enabled label set // FilterByEnableLabel returns all containers that have the enabled label set
func FilterByEnableLabel(baseFilter t.Filter) t.Filter { func FilterByEnableLabel(baseFilter t.Filter) t.Filter {
return func(c t.FilterableContainer) bool { return func(c t.FilterableContainer) bool {
@ -86,14 +56,13 @@ func FilterByDisabledLabel(baseFilter t.Filter) t.Filter {
// FilterByScope returns all containers that belongs to a specific scope // FilterByScope returns all containers that belongs to a specific scope
func FilterByScope(scope string, baseFilter t.Filter) t.Filter { func FilterByScope(scope string, baseFilter t.Filter) t.Filter {
if scope == "" {
return baseFilter
}
return func(c t.FilterableContainer) bool { return func(c t.FilterableContainer) bool {
containerScope, containerHasScope := c.Scope() containerScope, ok := c.Scope()
if ok && containerScope == scope {
if !containerHasScope || containerScope == "" {
containerScope = "none"
}
if containerScope == scope {
return baseFilter(c) return baseFilter(c)
} }
@ -101,33 +70,14 @@ func FilterByScope(scope string, baseFilter t.Filter) t.Filter {
} }
} }
// FilterByImage returns all containers that have a specific image
func FilterByImage(images []string, baseFilter t.Filter) t.Filter {
if images == nil {
return baseFilter
}
return func(c t.FilterableContainer) bool {
image := strings.Split(c.ImageName(), ":")[0]
for _, targetImage := range images {
if image == targetImage {
return baseFilter(c)
}
}
return false
}
}
// BuildFilter creates the needed filter of containers // BuildFilter creates the needed filter of containers
func BuildFilter(names []string, disableNames []string, enableLabel bool, scope string) (t.Filter, string) { func BuildFilter(names []string, enableLabel bool, scope string) (t.Filter, string) {
sb := strings.Builder{} sb := strings.Builder{}
filter := NoFilter filter := NoFilter
filter = FilterByNames(names, filter) filter = FilterByNames(names, filter)
filter = FilterByDisableNames(disableNames, filter)
if len(names) > 0 { if len(names) > 0 {
sb.WriteString("which name matches \"") sb.WriteString("with name \"")
for i, n := range names { for i, n := range names {
sb.WriteString(n) sb.WriteString(n)
if i < len(names)-1 { if i < len(names)-1 {
@ -136,16 +86,6 @@ func BuildFilter(names []string, disableNames []string, enableLabel bool, scope
} }
sb.WriteString(`", `) sb.WriteString(`", `)
} }
if len(disableNames) > 0 {
sb.WriteString("not named one of \"")
for i, n := range disableNames {
sb.WriteString(n)
if i < len(disableNames)-1 {
sb.WriteString(`" or "`)
}
}
sb.WriteString(`", `)
}
if enableLabel { if enableLabel {
// If label filtering is enabled, containers should only be considered // If label filtering is enabled, containers should only be considered
@ -153,13 +93,7 @@ func BuildFilter(names []string, disableNames []string, enableLabel bool, scope
filter = FilterByEnableLabel(filter) filter = FilterByEnableLabel(filter)
sb.WriteString("using enable label, ") sb.WriteString("using enable label, ")
} }
if scope != "" {
if scope == "none" {
// If a scope has explicitly defined as "none", containers should only be considered
// if they do not have a scope defined, or if it's explicitly set to "none".
filter = FilterByScope(scope, filter)
sb.WriteString(`without a scope, "`)
} else if scope != "" {
// If a scope has been defined, containers should only be considered // If a scope has been defined, containers should only be considered
// if the scope is specifically set. // if the scope is specifically set.
filter = FilterByScope(scope, filter) filter = FilterByScope(scope, filter)

View file

@ -47,28 +47,6 @@ func TestFilterByNames(t *testing.T) {
container.AssertExpectations(t) container.AssertExpectations(t)
} }
func TestFilterByNamesRegex(t *testing.T) {
names := []string{`ba(b|ll)oon`}
filter := FilterByNames(names, NoFilter)
assert.NotNil(t, filter)
container := new(mocks.FilterableContainer)
container.On("Name").Return("balloon")
assert.True(t, filter(container))
container.AssertExpectations(t)
container = new(mocks.FilterableContainer)
container.On("Name").Return("spoon")
assert.False(t, filter(container))
container.AssertExpectations(t)
container = new(mocks.FilterableContainer)
container.On("Name").Return("baboonious")
assert.False(t, filter(container))
container.AssertExpectations(t)
}
func TestFilterByEnableLabel(t *testing.T) { func TestFilterByEnableLabel(t *testing.T) {
filter := FilterByEnableLabel(NoFilter) filter := FilterByEnableLabel(NoFilter)
assert.NotNil(t, filter) assert.NotNil(t, filter)
@ -90,7 +68,8 @@ func TestFilterByEnableLabel(t *testing.T) {
} }
func TestFilterByScope(t *testing.T) { func TestFilterByScope(t *testing.T) {
scope := "testscope" var scope string
scope = "testscope"
filter := FilterByScope(scope, NoFilter) filter := FilterByScope(scope, NoFilter)
assert.NotNil(t, filter) assert.NotNil(t, filter)
@ -111,53 +90,6 @@ func TestFilterByScope(t *testing.T) {
container.AssertExpectations(t) container.AssertExpectations(t)
} }
func TestFilterByNoneScope(t *testing.T) {
scope := "none"
filter := FilterByScope(scope, NoFilter)
assert.NotNil(t, filter)
container := new(mocks.FilterableContainer)
container.On("Scope").Return("anyscope", true)
assert.False(t, filter(container))
container.AssertExpectations(t)
container = new(mocks.FilterableContainer)
container.On("Scope").Return("", false)
assert.True(t, filter(container))
container.AssertExpectations(t)
container = new(mocks.FilterableContainer)
container.On("Scope").Return("", true)
assert.True(t, filter(container))
container.AssertExpectations(t)
container = new(mocks.FilterableContainer)
container.On("Scope").Return("none", true)
assert.True(t, filter(container))
container.AssertExpectations(t)
}
func TestBuildFilterNoneScope(t *testing.T) {
filter, desc := BuildFilter(nil, nil, false, "none")
assert.Contains(t, desc, "without a scope")
scoped := new(mocks.FilterableContainer)
scoped.On("Enabled").Return(false, false)
scoped.On("Scope").Return("anyscope", true)
unscoped := new(mocks.FilterableContainer)
unscoped.On("Enabled").Return(false, false)
unscoped.On("Scope").Return("", false)
assert.False(t, filter(scoped))
assert.True(t, filter(unscoped))
scoped.AssertExpectations(t)
unscoped.AssertExpectations(t)
}
func TestFilterByDisabledLabel(t *testing.T) { func TestFilterByDisabledLabel(t *testing.T) {
filter := FilterByDisabledLabel(NoFilter) filter := FilterByDisabledLabel(NoFilter)
assert.NotNil(t, filter) assert.NotNil(t, filter)
@ -178,50 +110,12 @@ func TestFilterByDisabledLabel(t *testing.T) {
container.AssertExpectations(t) container.AssertExpectations(t)
} }
func TestFilterByImage(t *testing.T) {
filterEmpty := FilterByImage(nil, NoFilter)
filterSingle := FilterByImage([]string{"registry"}, NoFilter)
filterMultiple := FilterByImage([]string{"registry", "bla"}, NoFilter)
assert.NotNil(t, filterSingle)
assert.NotNil(t, filterMultiple)
container := new(mocks.FilterableContainer)
container.On("ImageName").Return("registry:2")
assert.True(t, filterEmpty(container))
assert.True(t, filterSingle(container))
assert.True(t, filterMultiple(container))
container.AssertExpectations(t)
container = new(mocks.FilterableContainer)
container.On("ImageName").Return("registry:latest")
assert.True(t, filterEmpty(container))
assert.True(t, filterSingle(container))
assert.True(t, filterMultiple(container))
container.AssertExpectations(t)
container = new(mocks.FilterableContainer)
container.On("ImageName").Return("abcdef1234")
assert.True(t, filterEmpty(container))
assert.False(t, filterSingle(container))
assert.False(t, filterMultiple(container))
container.AssertExpectations(t)
container = new(mocks.FilterableContainer)
container.On("ImageName").Return("bla:latest")
assert.True(t, filterEmpty(container))
assert.False(t, filterSingle(container))
assert.True(t, filterMultiple(container))
container.AssertExpectations(t)
}
func TestBuildFilter(t *testing.T) { func TestBuildFilter(t *testing.T) {
names := []string{"test", "valid"} var names []string
names = append(names, "test")
filter, desc := BuildFilter(names, []string{}, false, "") filter, desc := BuildFilter(names, false, "")
assert.Contains(t, desc, "test") assert.Contains(t, desc, "test")
assert.Contains(t, desc, "or")
assert.Contains(t, desc, "valid")
container := new(mocks.FilterableContainer) container := new(mocks.FilterableContainer)
container.On("Name").Return("Invalid") container.On("Name").Return("Invalid")
@ -257,7 +151,7 @@ func TestBuildFilterEnableLabel(t *testing.T) {
var names []string var names []string
names = append(names, "test") names = append(names, "test")
filter, desc := BuildFilter(names, []string{}, true, "") filter, desc := BuildFilter(names, true, "")
assert.Contains(t, desc, "using enable label") assert.Contains(t, desc, "using enable label")
container := new(mocks.FilterableContainer) container := new(mocks.FilterableContainer)
@ -282,52 +176,3 @@ func TestBuildFilterEnableLabel(t *testing.T) {
assert.False(t, filter(container)) assert.False(t, filter(container))
container.AssertExpectations(t) container.AssertExpectations(t)
} }
func TestBuildFilterDisableContainer(t *testing.T) {
filter, desc := BuildFilter([]string{}, []string{"excluded", "notfound"}, false, "")
assert.Contains(t, desc, "not named")
assert.Contains(t, desc, "excluded")
assert.Contains(t, desc, "or")
assert.Contains(t, desc, "notfound")
container := new(mocks.FilterableContainer)
container.On("Name").Return("Another")
container.On("Enabled").Return(false, false)
assert.True(t, filter(container))
container.AssertExpectations(t)
container = new(mocks.FilterableContainer)
container.On("Name").Return("AnotherOne")
container.On("Enabled").Return(true, true)
assert.True(t, filter(container))
container.AssertExpectations(t)
container = new(mocks.FilterableContainer)
container.On("Name").Return("test")
container.On("Enabled").Return(false, false)
assert.True(t, filter(container))
container.AssertExpectations(t)
container = new(mocks.FilterableContainer)
container.On("Name").Return("excluded")
container.On("Enabled").Return(true, true)
assert.False(t, filter(container))
container.AssertExpectations(t)
container = new(mocks.FilterableContainer)
container.On("Name").Return("excludedAsSubstring")
container.On("Enabled").Return(true, true)
assert.True(t, filter(container))
container.AssertExpectations(t)
container = new(mocks.FilterableContainer)
container.On("Name").Return("notfound")
container.On("Enabled").Return(true, true)
assert.False(t, filter(container))
container.AssertExpectations(t)
container = new(mocks.FilterableContainer)
container.On("Enabled").Return(false, true)
assert.False(t, filter(container))
container.AssertExpectations(t)
}

View file

@ -12,8 +12,8 @@ func ExecutePreChecks(client container.Client, params types.UpdateParams) {
if err != nil { if err != nil {
return return
} }
for _, currentContainer := range containers { for _, container := range containers {
ExecutePreCheckCommand(client, currentContainer) ExecutePreCheckCommand(client, container)
} }
} }
@ -23,84 +23,68 @@ func ExecutePostChecks(client container.Client, params types.UpdateParams) {
if err != nil { if err != nil {
return return
} }
for _, currentContainer := range containers { for _, container := range containers {
ExecutePostCheckCommand(client, currentContainer) ExecutePostCheckCommand(client, container)
} }
} }
// ExecutePreCheckCommand tries to run the pre-check lifecycle hook for a single container. // ExecutePreCheckCommand tries to run the pre-check lifecycle hook for a single container.
func ExecutePreCheckCommand(client container.Client, container types.Container) { func ExecutePreCheckCommand(client container.Client, container container.Container) {
clog := log.WithField("container", container.Name())
command := container.GetLifecyclePreCheckCommand() command := container.GetLifecyclePreCheckCommand()
if len(command) == 0 { if len(command) == 0 {
clog.Debug("No pre-check command supplied. Skipping") log.Debug("No pre-check command supplied. Skipping")
return return
} }
clog.Debug("Executing pre-check command.") log.Debug("Executing pre-check command.")
_, err := client.ExecuteCommand(container.ID(), command, 1) if err := client.ExecuteCommand(container.ID(), command, 1); err != nil {
if err != nil { log.Error(err)
clog.Error(err)
} }
} }
// ExecutePostCheckCommand tries to run the post-check lifecycle hook for a single container. // ExecutePostCheckCommand tries to run the post-check lifecycle hook for a single container.
func ExecutePostCheckCommand(client container.Client, container types.Container) { func ExecutePostCheckCommand(client container.Client, container container.Container) {
clog := log.WithField("container", container.Name())
command := container.GetLifecyclePostCheckCommand() command := container.GetLifecyclePostCheckCommand()
if len(command) == 0 { if len(command) == 0 {
clog.Debug("No post-check command supplied. Skipping") log.Debug("No post-check command supplied. Skipping")
return return
} }
clog.Debug("Executing post-check command.") log.Debug("Executing post-check command.")
_, err := client.ExecuteCommand(container.ID(), command, 1) if err := client.ExecuteCommand(container.ID(), command, 1); err != nil {
if err != nil { log.Error(err)
clog.Error(err)
} }
} }
// ExecutePreUpdateCommand tries to run the pre-update lifecycle hook for a single container. // ExecutePreUpdateCommand tries to run the pre-update lifecycle hook for a single container.
func ExecutePreUpdateCommand(client container.Client, container types.Container) (SkipUpdate bool, err error) { func ExecutePreUpdateCommand(client container.Client, container container.Container) error {
timeout := container.PreUpdateTimeout() timeout := container.PreUpdateTimeout()
command := container.GetLifecyclePreUpdateCommand() command := container.GetLifecyclePreUpdateCommand()
clog := log.WithField("container", container.Name())
if len(command) == 0 { if len(command) == 0 {
clog.Debug("No pre-update command supplied. Skipping") log.Debug("No pre-update command supplied. Skipping")
return false, nil return nil
} }
if !container.IsRunning() || container.IsRestarting() { log.Debug("Executing pre-update command.")
clog.Debug("Container is not running. Skipping pre-update command.")
return false, nil
}
clog.Debug("Executing pre-update command.")
return client.ExecuteCommand(container.ID(), command, timeout) return client.ExecuteCommand(container.ID(), command, timeout)
} }
// ExecutePostUpdateCommand tries to run the post-update lifecycle hook for a single container. // ExecutePostUpdateCommand tries to run the post-update lifecycle hook for a single container.
func ExecutePostUpdateCommand(client container.Client, newContainerID types.ContainerID) { func ExecutePostUpdateCommand(client container.Client, newContainerID string) {
newContainer, err := client.GetContainer(newContainerID) newContainer, err := client.GetContainer(newContainerID)
timeout := newContainer.PostUpdateTimeout()
if err != nil { if err != nil {
log.WithField("containerID", newContainerID.ShortID()).Error(err) log.Error(err)
return return
} }
clog := log.WithField("container", newContainer.Name())
command := newContainer.GetLifecyclePostUpdateCommand() command := newContainer.GetLifecyclePostUpdateCommand()
if len(command) == 0 { if len(command) == 0 {
clog.Debug("No post-update command supplied. Skipping") log.Debug("No post-update command supplied. Skipping")
return return
} }
clog.Debug("Executing post-update command.") log.Debug("Executing post-update command.")
_, err = client.ExecuteCommand(newContainerID, command, timeout) if err := client.ExecuteCommand(newContainerID, command, 1); err != nil {
log.Error(err)
if err != nil {
clog.Error(err)
} }
} }

View file

@ -1,7 +1,6 @@
package metrics package metrics
import ( import (
"github.com/containrrr/watchtower/pkg/types"
"github.com/prometheus/client_golang/prometheus" "github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promauto" "github.com/prometheus/client_golang/prometheus/promauto"
) )
@ -25,21 +24,6 @@ type Metrics struct {
skipped prometheus.Counter skipped prometheus.Counter
} }
// NewMetric returns a Metric with the counts taken from the appropriate types.Report fields
func NewMetric(report types.Report) *Metric {
return &Metric{
Scanned: len(report.Scanned()),
// Note: This is for backwards compatibility. ideally, stale containers should be counted separately
Updated: len(report.Updated()) + len(report.Stale()),
Failed: len(report.Failed()),
}
}
// QueueIsEmpty checks whether any messages are enqueued in the channel
func (metrics *Metrics) QueueIsEmpty() bool {
return len(metrics.channel) == 0
}
// Register registers metrics for an executed scan // Register registers metrics for an executed scan
func (metrics *Metrics) Register(metric *Metric) { func (metrics *Metrics) Register(metric *Metric) {
metrics.channel <- metric metrics.channel <- metric

View file

@ -1,40 +0,0 @@
package notifications
var commonTemplates = map[string]string{
`default-legacy`: "{{range .}}{{.Message}}{{println}}{{end}}",
`default`: `
{{- if .Report -}}
{{- with .Report -}}
{{- if ( or .Updated .Failed ) -}}
{{len .Scanned}} Scanned, {{len .Updated}} Updated, {{len .Failed}} Failed
{{- range .Updated}}
- {{.Name}} ({{.ImageName}}): {{.CurrentImageID.ShortID}} updated to {{.LatestImageID.ShortID}}
{{- end -}}
{{- range .Fresh}}
- {{.Name}} ({{.ImageName}}): {{.State}}
{{- end -}}
{{- range .Skipped}}
- {{.Name}} ({{.ImageName}}): {{.State}}: {{.Error}}
{{- end -}}
{{- range .Failed}}
- {{.Name}} ({{.ImageName}}): {{.State}}: {{.Error}}
{{- end -}}
{{- end -}}
{{- end -}}
{{- else -}}
{{range .Entries -}}{{.Message}}{{"\n"}}{{- end -}}
{{- end -}}`,
`porcelain.v1.summary-no-log`: `
{{- if .Report -}}
{{- range .Report.All }}
{{- .Name}} ({{.ImageName}}): {{.State -}}
{{- with .Error}} Error: {{.}}{{end}}{{ println }}
{{- else -}}
no containers matched filter
{{- end -}}
{{- end -}}`,
`json.v1`: `{{ . | ToJSON }}`,
}

View file

@ -15,16 +15,23 @@ const (
) )
type emailTypeNotifier struct { type emailTypeNotifier struct {
From, To string url string
Server, User, Password string From, To string
Port int Server, User, Password, SubjectTag string
tlsSkipVerify bool Port int
entries []*log.Entry tlsSkipVerify bool
delay time.Duration entries []*log.Entry
logLevels []log.Level
delay time.Duration
} }
func newEmailNotifier(c *cobra.Command) t.ConvertibleNotifier { // NewEmailNotifier is a factory method creating a new email notifier instance
flags := c.Flags() func NewEmailNotifier(c *cobra.Command, acceptedLogLevels []log.Level) t.ConvertibleNotifier {
return newEmailNotifier(c, acceptedLogLevels)
}
func newEmailNotifier(c *cobra.Command, acceptedLogLevels []log.Level) t.ConvertibleNotifier {
flags := c.PersistentFlags()
from, _ := flags.GetString("notification-email-from") from, _ := flags.GetString("notification-email-from")
to, _ := flags.GetString("notification-email-to") to, _ := flags.GetString("notification-email-to")
@ -34,6 +41,7 @@ func newEmailNotifier(c *cobra.Command) t.ConvertibleNotifier {
port, _ := flags.GetInt("notification-email-server-port") port, _ := flags.GetInt("notification-email-server-port")
tlsSkipVerify, _ := flags.GetBool("notification-email-server-tls-skip-verify") tlsSkipVerify, _ := flags.GetBool("notification-email-server-tls-skip-verify")
delay, _ := flags.GetInt("notification-email-delay") delay, _ := flags.GetInt("notification-email-delay")
subjecttag, _ := flags.GetString("notification-email-subjecttag")
n := &emailTypeNotifier{ n := &emailTypeNotifier{
entries: []*log.Entry{}, entries: []*log.Entry{},
@ -44,26 +52,28 @@ func newEmailNotifier(c *cobra.Command) t.ConvertibleNotifier {
Password: password, Password: password,
Port: port, Port: port,
tlsSkipVerify: tlsSkipVerify, tlsSkipVerify: tlsSkipVerify,
logLevels: acceptedLogLevels,
delay: time.Duration(delay) * time.Second, delay: time.Duration(delay) * time.Second,
SubjectTag: subjecttag,
} }
return n return n
} }
func (e *emailTypeNotifier) GetURL(c *cobra.Command) (string, error) { func (e *emailTypeNotifier) GetURL() (string, error) {
conf := &shoutrrrSmtp.Config{ conf := &shoutrrrSmtp.Config{
FromAddress: e.From, FromAddress: e.From,
FromName: "Watchtower", FromName: "Watchtower",
ToAddresses: []string{e.To}, ToAddresses: []string{e.To},
Port: uint16(e.Port), Port: uint16(e.Port),
Host: e.Server, Host: e.Server,
Subject: e.getSubject(),
Username: e.User, Username: e.User,
Password: e.Password, Password: e.Password,
UseStartTLS: !e.tlsSkipVerify, UseStartTLS: !e.tlsSkipVerify,
UseHTML: false, UseHTML: false,
Encryption: shoutrrrSmtp.EncMethods.Auto, Encryption: shoutrrrSmtp.EncMethods.Auto,
Auth: shoutrrrSmtp.AuthTypes.None, Auth: shoutrrrSmtp.AuthTypes.None,
ClientHost: "localhost",
} }
if len(e.User) > 0 { if len(e.User) > 0 {
@ -77,6 +87,12 @@ func (e *emailTypeNotifier) GetURL(c *cobra.Command) (string, error) {
return conf.GetURL().String(), nil return conf.GetURL().String(), nil
} }
func (e *emailTypeNotifier) GetDelay() time.Duration { func (e *emailTypeNotifier) getSubject() string {
return e.delay subject := GetTitle()
if e.SubjectTag != "" {
subject = e.SubjectTag + " " + subject
}
return subject
} }

View file

@ -19,10 +19,16 @@ type gotifyTypeNotifier struct {
gotifyURL string gotifyURL string
gotifyAppToken string gotifyAppToken string
gotifyInsecureSkipVerify bool gotifyInsecureSkipVerify bool
logLevels []log.Level
} }
func newGotifyNotifier(c *cobra.Command) t.ConvertibleNotifier { // NewGotifyNotifier is a factory method creating a new gotify notifier instance
flags := c.Flags() func NewGotifyNotifier(c *cobra.Command, levels []log.Level) t.ConvertibleNotifier {
return newGotifyNotifier(c, levels)
}
func newGotifyNotifier(c *cobra.Command, levels []log.Level) t.ConvertibleNotifier {
flags := c.PersistentFlags()
apiURL := getGotifyURL(flags) apiURL := getGotifyURL(flags)
token := getGotifyToken(flags) token := getGotifyToken(flags)
@ -33,6 +39,7 @@ func newGotifyNotifier(c *cobra.Command) t.ConvertibleNotifier {
gotifyURL: apiURL, gotifyURL: apiURL,
gotifyAppToken: token, gotifyAppToken: token,
gotifyInsecureSkipVerify: skipVerify, gotifyInsecureSkipVerify: skipVerify,
logLevels: levels,
} }
return n return n
@ -60,7 +67,7 @@ func getGotifyURL(flags *pflag.FlagSet) string {
return gotifyURL return gotifyURL
} }
func (n *gotifyTypeNotifier) GetURL(c *cobra.Command) (string, error) { func (n *gotifyTypeNotifier) GetURL() (string, error) {
apiURL, err := url.Parse(n.gotifyURL) apiURL, err := url.Parse(n.gotifyURL)
if err != nil { if err != nil {
return "", err return "", err
@ -70,6 +77,7 @@ func (n *gotifyTypeNotifier) GetURL(c *cobra.Command) (string, error) {
Host: apiURL.Host, Host: apiURL.Host,
Path: apiURL.Path, Path: apiURL.Path,
DisableTLS: apiURL.Scheme == "http", DisableTLS: apiURL.Scheme == "http",
Title: GetTitle(),
Token: n.gotifyAppToken, Token: n.gotifyAppToken,
} }

View file

@ -1,61 +0,0 @@
package notifications
import (
"encoding/json"
t "github.com/containrrr/watchtower/pkg/types"
)
type jsonMap = map[string]interface{}
// MarshalJSON implements json.Marshaler
func (d Data) MarshalJSON() ([]byte, error) {
var entries = make([]jsonMap, len(d.Entries))
for i, entry := range d.Entries {
entries[i] = jsonMap{
`level`: entry.Level,
`message`: entry.Message,
`data`: entry.Data,
`time`: entry.Time,
}
}
var report jsonMap
if d.Report != nil {
report = jsonMap{
`scanned`: marshalReports(d.Report.Scanned()),
`updated`: marshalReports(d.Report.Updated()),
`failed`: marshalReports(d.Report.Failed()),
`skipped`: marshalReports(d.Report.Skipped()),
`stale`: marshalReports(d.Report.Stale()),
`fresh`: marshalReports(d.Report.Fresh()),
}
}
return json.Marshal(jsonMap{
`report`: report,
`title`: d.Title,
`host`: d.Host,
`entries`: entries,
})
}
func marshalReports(reports []t.ContainerReport) []jsonMap {
jsonReports := make([]jsonMap, len(reports))
for i, report := range reports {
jsonReports[i] = jsonMap{
`id`: report.ID().ShortID(),
`name`: report.Name(),
`currentImageId`: report.CurrentImageID().ShortID(),
`latestImageId`: report.LatestImageID().ShortID(),
`imageName`: report.ImageName(),
`state`: report.State(),
}
if errorMessage := report.Error(); errorMessage != "" {
jsonReports[i][`error`] = errorMessage
}
}
return jsonReports
}
var _ json.Marshaler = &Data{}

View file

@ -1,118 +0,0 @@
package notifications
import (
s "github.com/containrrr/watchtower/pkg/session"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
)
var _ = Describe("JSON template", func() {
When("using report templates", func() {
When("JSON template is used", func() {
It("should format the messages to the expected format", func() {
expected := `{
"entries": [
{
"data": null,
"level": "info",
"message": "foo Bar",
"time": "0001-01-01T00:00:00Z"
}
],
"host": "Mock",
"report": {
"failed": [
{
"currentImageId": "01d210000000",
"error": "accidentally the whole container",
"id": "c79210000000",
"imageName": "mock/fail1:latest",
"latestImageId": "d0a210000000",
"name": "fail1",
"state": "Failed"
}
],
"fresh": [
{
"currentImageId": "01d310000000",
"id": "c79310000000",
"imageName": "mock/frsh1:latest",
"latestImageId": "01d310000000",
"name": "frsh1",
"state": "Fresh"
}
],
"scanned": [
{
"currentImageId": "01d110000000",
"id": "c79110000000",
"imageName": "mock/updt1:latest",
"latestImageId": "d0a110000000",
"name": "updt1",
"state": "Updated"
},
{
"currentImageId": "01d120000000",
"id": "c79120000000",
"imageName": "mock/updt2:latest",
"latestImageId": "d0a120000000",
"name": "updt2",
"state": "Updated"
},
{
"currentImageId": "01d210000000",
"error": "accidentally the whole container",
"id": "c79210000000",
"imageName": "mock/fail1:latest",
"latestImageId": "d0a210000000",
"name": "fail1",
"state": "Failed"
},
{
"currentImageId": "01d310000000",
"id": "c79310000000",
"imageName": "mock/frsh1:latest",
"latestImageId": "01d310000000",
"name": "frsh1",
"state": "Fresh"
}
],
"skipped": [
{
"currentImageId": "01d410000000",
"error": "unpossible",
"id": "c79410000000",
"imageName": "mock/skip1:latest",
"latestImageId": "01d410000000",
"name": "skip1",
"state": "Skipped"
}
],
"stale": [],
"updated": [
{
"currentImageId": "01d110000000",
"id": "c79110000000",
"imageName": "mock/updt1:latest",
"latestImageId": "d0a110000000",
"name": "updt1",
"state": "Updated"
},
{
"currentImageId": "01d120000000",
"id": "c79120000000",
"imageName": "mock/updt2:latest",
"latestImageId": "d0a120000000",
"name": "updt2",
"state": "Updated"
}
]
},
"title": "Watchtower updates on Mock"
}`
data := mockDataFromStates(s.UpdatedState, s.FreshState, s.FailedState, s.SkippedState, s.UpdatedState)
Expect(getTemplatedResult(`json.v1`, false, data)).To(MatchJSON(expected))
})
})
})
})

View file

@ -1,19 +0,0 @@
package notifications
import (
t "github.com/containrrr/watchtower/pkg/types"
log "github.com/sirupsen/logrus"
)
// StaticData is the part of the notification template data model set upon initialization
type StaticData struct {
Title string
Host string
}
// Data is the notification template data model
type Data struct {
StaticData
Entries []*log.Entry
Report t.Report
}

View file

@ -1,12 +1,11 @@
package notifications package notifications
import ( import (
"net/url"
shoutrrrTeams "github.com/containrrr/shoutrrr/pkg/services/teams" shoutrrrTeams "github.com/containrrr/shoutrrr/pkg/services/teams"
t "github.com/containrrr/watchtower/pkg/types" t "github.com/containrrr/watchtower/pkg/types"
log "github.com/sirupsen/logrus" log "github.com/sirupsen/logrus"
"github.com/spf13/cobra" "github.com/spf13/cobra"
"net/url"
) )
const ( const (
@ -15,12 +14,18 @@ const (
type msTeamsTypeNotifier struct { type msTeamsTypeNotifier struct {
webHookURL string webHookURL string
levels []log.Level
data bool data bool
} }
func newMsTeamsNotifier(cmd *cobra.Command) t.ConvertibleNotifier { // NewMsTeamsNotifier is a factory method creating a new teams notifier instance
func NewMsTeamsNotifier(cmd *cobra.Command, acceptedLogLevels []log.Level) t.ConvertibleNotifier {
return newMsTeamsNotifier(cmd, acceptedLogLevels)
}
flags := cmd.Flags() func newMsTeamsNotifier(cmd *cobra.Command, acceptedLogLevels []log.Level) t.ConvertibleNotifier {
flags := cmd.PersistentFlags()
webHookURL, _ := flags.GetString("notification-msteams-hook") webHookURL, _ := flags.GetString("notification-msteams-hook")
if len(webHookURL) <= 0 { if len(webHookURL) <= 0 {
@ -29,6 +34,7 @@ func newMsTeamsNotifier(cmd *cobra.Command) t.ConvertibleNotifier {
withData, _ := flags.GetBool("notification-msteams-data") withData, _ := flags.GetBool("notification-msteams-data")
n := &msTeamsTypeNotifier{ n := &msTeamsTypeNotifier{
levels: acceptedLogLevels,
webHookURL: webHookURL, webHookURL: webHookURL,
data: withData, data: withData,
} }
@ -36,7 +42,7 @@ func newMsTeamsNotifier(cmd *cobra.Command) t.ConvertibleNotifier {
return n return n
} }
func (n *msTeamsTypeNotifier) GetURL(c *cobra.Command) (string, error) { func (n *msTeamsTypeNotifier) GetURL() (string, error) {
webhookURL, err := url.Parse(n.webHookURL) webhookURL, err := url.Parse(n.webHookURL)
if err != nil { if err != nil {
return "", err return "", err
@ -48,6 +54,7 @@ func (n *msTeamsTypeNotifier) GetURL(c *cobra.Command) (string, error) {
} }
config.Color = ColorHex config.Color = ColorHex
config.Title = GetTitle()
return config.GetURL().String(), nil return config.GetURL().String(), nil
} }

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