Merge pull request #2227 from TechnoTaff/devel

Added a Helm Chart to the project

helm/wekan/.helmignore

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+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+OWNERS

helm/wekan/Chart.yaml

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+name: wekan
+version: 1.0.0
+appVersion: 2.x.x
+kubeVersion: "^1.8.0-0"
+description: Open Source kanban
+home: https://wekan.github.io/
+icon: https://wekan.github.io/wekan-logo.svg
+sources:
+  - https://github.com/wekan/wekan
+maintainers:
+  - name: technotaff
+    email: github@randall.cc
+engine: gotpl

helm/wekan/OWNERS

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+approvers:
+- technotaff
+reviewers:
+- technotaff

helm/wekan/README.md

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+# Helm Chart for Wekan
+
+## Features
+
+o Uses a MongoDB replica set by default - this allows fault-tolerant
+  and scalable MongoDB deployment (or just set the replicas to 1 for
+  a single server install)
+
+o Optional Horizontal Pod Autoscaler (HPA), so that your Wekan pods
+  will scale automatically with increased CPU load.
+
+## The configurable values (values.yaml)
+
+Scaling Wekan:
+
+```yaml
+## Configuration for wekan component
+##
+
+replicaCount: 1
+```
+**replicaCount** Will set the initial number of replicas for the Wekan pod (and container)
+
+```yaml
+## Configure an horizontal pod autoscaler
+##
+autoscaling:
+  enabled: true
+  config:
+    minReplicas: 1
+    maxReplicas: 16
+    ## Note: when setting this, a `resources.request.cpu` is required. You
+    ## likely want to set it to `1` or some lower value.
+    ##
+    targetCPUUtilizationPercentage: 80
+```
+This section (if *enabled* is set to **true**) will enable the Kubernetes Horizontal Pod Autoscaler (HPA).
+
+**minReplicas:** this is the minimum number of pods to scale down to (We recommend setting this to the same value as **replicaCount**).
+
+**maxReplicas:** this is the maximum number of pods to scale up to.
+
+**targetCPUUtilizationPercentage:** This is the CPU at which the HPA will scale-out the number of Wekan pods.
+
+```yaml
+mongodb-replicaset:
+  enabled: true
+  replicas: 3
+  replicaSetName: rs0
+  securityContext:
+    runAsUser: 1000
+    fsGroup: 1000
+    runAsNonRoot: true
+```
+
+This section controls the scale of the MongoDB redundant Replica Set.
+
+**replicas:** This is the number of MongoDB instances to include in the set. You can set this to 1 for a single server - this will still allow you to scale-up later with a helm upgrade.

helm/wekan/charts/.gitkeep

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+

helm/wekan/requirements.yaml

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+dependencies:
+- name: mongodb-replicaset
+  version: 3.6.x
+  repository: "https://kubernetes-charts.storage.googleapis.com/"
+  condition: mongodb-replicaset.enabled

helm/wekan/templates/NOTES.txt

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+1. Get the application URL by running these commands:
+{{- if .Values.ingress.enabled }}
+{{- range .Values.ingress.hosts }}
+  http{{ if $.Values.ingress.tls }}s{{ end }}://{{ . }}{{ $.Values.ingress.path }}
+{{- end }}
+{{- else if contains "NodePort" .Values.service.type }}
+  export NODE_PORT=$(kubectl get --namespace {{ .Release.Namespace }} -o jsonpath="{.spec.ports[0].nodePort}" services {{ template "wekan.fullname" . }})
+  export NODE_IP=$(kubectl get nodes --namespace {{ .Release.Namespace }} -o jsonpath="{.items[0].status.addresses[0].address}")
+  echo http://$NODE_IP:$NODE_PORT
+{{- else if contains "LoadBalancer" .Values.service.type }}
+     NOTE: It may take a few minutes for the LoadBalancer IP to be available.
+           You can watch the status of by running 'kubectl get svc -w {{ template "wekan.fullname" . }}'
+  export SERVICE_IP=$(kubectl get svc --namespace {{ .Release.Namespace }} {{ template "wekan.fullname" . }} -o jsonpath='{.status.loadBalancer.ingress[0].ip}')
+  echo http://$SERVICE_IP:{{ .Values.service.port }}
+{{- else if contains "ClusterIP" .Values.service.type }}
+  export POD_NAME=$(kubectl get pods --namespace {{ .Release.Namespace }} -l "app={{ template "wekan.name" . }},release={{ .Release.Name }}" -o jsonpath="{.items[0].metadata.name}")
+  echo "Visit http://127.0.0.1:8080 to use your application"
+  kubectl port-forward $POD_NAME 8080:8080
+{{- end }}

helm/wekan/templates/_helpers.tpl

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+{{/* vim: set filetype=mustache: */}}
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "wekan.name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Create a default fully qualified app name.
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+If release name contains chart name it will be used as a full name.
+*/}}
+{{- define "wekan.fullname" -}}
+{{- if .Values.fullnameOverride -}}
+{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
+{{- $name := default .Chart.Name .Values.nameOverride -}}
+{{- if contains $name .Release.Name -}}
+{{- .Release.Name | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Create a default fully qualified name for the wekan data app.
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+*/}}
+{{- define "wekan.localdata.fullname" -}}
+{{- if .Values.localdata.fullnameOverride -}}
+{{- .Values.localdata.fullnameOverride | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
+{{- $name := default .Chart.Name .Values.nameOverride -}}
+{{- if contains $name .Release.Name -}}
+{{- printf "%s-localdata" .Release.Name | trunc 63 | trimSuffix "-" -}}
+{{- else -}}
+{{- printf "%s-%s-localdata" .Release.Name $name | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+{{- end -}}
+{{- end -}}
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "wekan.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Create the name of the service account to use for the api component
+*/}}
+{{- define "wekan.serviceAccountName" -}}
+{{- if .Values.serviceAccounts.create -}}
+    {{ default (include "wekan.fullname" .) .Values.serviceAccounts.name }}
+{{- else -}}
+    {{ default "default" .Values.serviceAccounts.name }}
+{{- end -}}
+{{- end -}}
+
+{{/*
+Create a default fully qualified mongodb-replicaset name.
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+*/}}
+{{- define "wekan.mongodb-replicaset.fullname" -}}
+{{- $name := default "mongodb-replicaset" (index .Values "mongodb-replicaset" "nameOverride") -}}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" -}}
+{{- end -}}
+
+{{/*
+Create the MongoDB URL. If MongoDB is installed as part of this chart, use k8s service discovery,
+else use user-provided URL.
+*/}}
+{{- define "mongodb-replicaset.url" -}}
+{{- if (index .Values "mongodb-replicaset" "enabled") -}}
+{{- $count := (int (index .Values "mongodb-replicaset" "replicas")) -}}
+{{- $release := .Release.Name -}}
+mongodb://{{- range $v := until $count }}{{ $release }}-mongodb-replicaset-{{ $v }}.{{ $release }}-mongodb-replicaset:27017{{ if ne $v (sub $count 1) }},{{- end -}}{{- end -}}?replicaSet={{ index .Values "mongodb-replicaset" "replicaSetName" }}
+{{- else -}}
+{{- index .Values "mongodb-replicaset" "url" -}}
+{{- end -}}
+{{- end -}}

helm/wekan/templates/deployment.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ template "wekan.fullname" . }}
+  labels:
+    app: {{ template "wekan.name" . }}
+    chart: {{ template "wekan.chart" . }}
+    component: wekan
+    release: {{ .Release.Name }}
+    heritage: {{ .Release.Service }}
+spec:
+  replicas: {{ .Values.replicaCount }}
+  selector:
+    matchLabels:
+      app: {{ template "wekan.name" . }}
+      component: wekan
+      release: {{ .Release.Name }}
+  template:
+    metadata:
+      annotations:
+      labels:
+        app: {{ template "wekan.name" . }}
+        component: wekan
+        release: {{ .Release.Name }}
+    spec:
+      serviceAccountName: {{ template "wekan.serviceAccountName" . }}
+      containers:
+        - name: {{ .Chart.Name }}
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          terminationMessagePolicy: FallbackToLogsOnError
+          ports:
+            - name: http
+              containerPort: 8080
+          env:
+            - name: ROOT_URL
+              value: {{ .Values.root_url | default "https://wekan.local" | quote }}
+            - name: MONGO_URL
+              value: "{{ template "mongodb-replicaset.url" . }}"
+          livenessProbe:
+            httpGet:
+              path: /
+              port: 8080
+            initialDelaySeconds: 60
+          resources:
+{{ toYaml .Values.resources | indent 12 }}
+    {{- with .Values.nodeSelector }}
+      nodeSelector:
+{{ toYaml . | indent 8 }}
+    {{- end }}
+{{- if .Values.affinity }}
+      affinity:
+{{ toYaml .Values.affinity | indent 8 }}
+    {{- end }}
+    {{- with .Values.tolerations }}
+      tolerations:
+{{ toYaml . | indent 8 }}
+    {{- end }}

helm/wekan/templates/hpa.yaml

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+{{- if .Values.autoscaling.enabled -}}
+apiVersion: autoscaling/v1
+kind: HorizontalPodAutoscaler
+metadata:
+  name: {{ template "wekan.fullname" . }}
+  labels:
+    app: {{ template "wekan.name" . }}
+    chart: {{ template "wekan.chart" . }}
+    component: wekan
+    heritage: {{ .Release.Service }}
+    release: {{ .Release.Name }}
+spec:
+  scaleTargetRef:
+    apiVersion: apps/v1
+    kind: Deployment
+    name: {{ template "wekan.fullname" . }}
+{{ toYaml .Values.autoscaling.config | indent 2 }}
+{{- end -}}

helm/wekan/templates/ingress.yaml

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+{{- if .Values.ingress.enabled -}}
+{{- $fullName := include "wekan.fullname" . -}}
+{{- $servicePort := .Values.service.port -}}
+{{- $ingressPath := .Values.ingress.path -}}
+apiVersion: extensions/v1beta1
+kind: Ingress
+metadata:
+  name: {{ $fullName }}
+  labels:
+    app: {{ template "wekan.name" . }}
+    chart: {{ template "wekan.chart" . }}
+    component: wekan
+    heritage: {{ .Release.Service }}
+    release: {{ .Release.Name }}
+{{- with .Values.ingress.annotations }}
+  annotations:
+{{ toYaml . | indent 4 }}
+{{- end }}
+spec:
+{{- if .Values.ingress.tls }}
+  tls:
+  {{- range .Values.ingress.tls }}
+    - hosts:
+      {{- range .hosts }}
+        - {{ . }}
+      {{- end }}
+      secretName: {{ .secretName }}
+  {{- end }}
+{{- end }}
+  rules:
+  {{- range .Values.ingress.hosts }}
+    - host: {{ . }}
+      http:
+        paths:
+          - path: {{ $ingressPath }}
+            backend:
+              serviceName: {{ $fullName }}
+              servicePort: http
+  {{- end }}
+{{- end }}

helm/wekan/templates/secrets.yaml

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+apiVersion: v1
+kind: Secret
+metadata:
+  name: {{ template "wekan.fullname" . }}
+  labels:
+    app: {{ template "wekan.name" . }}
+    chart: {{ template "wekan.chart" . }}
+    component: wekan
+    heritage: {{ .Release.Service }}
+    release: {{ .Release.Name }}
+type: Opaque
+data:
+  accessKey: {{ .Values.credentials.accessKey | b64enc }}
+  secretKey: {{ .Values.credentials.secretKey | b64enc }}

helm/wekan/templates/service.yaml

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+apiVersion: v1
+kind: Service
+metadata:
+  {{- if .Values.service.annotations }}
+  annotations:
+{{ toYaml .Values.service.annotations | indent 4 }}
+  {{- end }}
+  name: {{ template "wekan.fullname" . }}
+  labels:
+    app: {{ template "wekan.name" . }}
+    chart: {{ template "wekan.chart" . }}
+    component: wekan
+    heritage: {{ .Release.Service }}
+    release: {{ .Release.Name }}
+spec:
+  type: {{ .Values.service.type }}
+  ports:
+    - port: {{ .Values.service.port }}
+      targetPort: http
+      protocol: TCP
+      name: http
+  selector:
+    app: {{ template "wekan.name" . }}
+    component: wekan
+    release: {{ .Release.Name }}

helm/wekan/templates/serviceaccount.yaml

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+{{- if .Values.serviceAccounts.create }}
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  labels:
+    app: {{ template "wekan.name" . }}
+    chart: {{ template "wekan.chart" . }}
+    component: wekan
+    heritage: {{ .Release.Service }}
+    release: {{ .Release.Name }}
+  name: {{ template "wekan.serviceAccountName" . }}
+{{- end }}

helm/wekan/templates/tests/test-cloudserver.yaml

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+apiVersion: v1
+kind: Pod
+metadata:
+  name: {{ template "wekan.fullname" . }}-test
+  annotations:
+    "helm.sh/hook": test-success
+spec:
+  containers:
+  - name: {{ template "wekan.fullname" . }}-test
+    imagePullPolicy: IfNotPresent
+    image: "docker.io/mesosphere/aws-cli:1.14.5"
+    command:
+      - sh
+      - -c
+      - aws s3 --endpoint-url=http://{{ include "wekan.fullname" . }} --region=us-east-1 ls
+    env:
+      - name: AWS_ACCESS_KEY_ID
+        valueFrom:
+          secretKeyRef:
+            name: {{ template "wekan.fullname" . }}
+            key: accessKey
+      - name: AWS_SECRET_ACCESS_KEY
+        valueFrom:
+          secretKeyRef:
+            name: {{ template "wekan.fullname" . }}
+            key: secretKey
+  restartPolicy: Never

helm/wekan/values.yaml

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+# ------------------------------------------------------------------------------
+# Wekan:
+# ------------------------------------------------------------------------------
+
+## Define serviceAccount names to create or use. Defaults to component's fully
+## qualified name.
+##
+serviceAccounts:
+  create: true
+  name: ""
+
+## Wekan image configuration
+##
+image:
+  repository: quay.io/wekan/wekan
+  tag: latest
+  pullPolicy: IfNotPresent
+
+## Configuration for wekan component
+##
+
+replicaCount: 1
+
+## Specify wekan credentials
+##
+credentials:
+  accessKey: access-key
+  secretKey: secret-key
+
+## Specify additional environmental variables for the Deployment
+##
+env: {}
+
+service:
+  type: NodePort
+  port: 80
+  annotations: {}
+    # prometheus.io/scrape: "true"
+    # prometheus.io/port: "8000"
+    # prometheus.io/path: "/_/monitoring/metrics"
+
+## Comma-separated string of allowed virtual hosts for external access.
+## This should match the ingress hosts
+##
+endpoint: wekan.local
+
+ingress:
+  enabled: true
+  annotations: {}
+    # kubernetes.io/ingress.class: nginx
+    # kubernetes.io/tls-acme: "true"
+  path: /*
+  # This must match 'endpoint', unless your client supports different
+  # hostnames.
+  hosts: [ wekan.local ]
+    # - wekan.local
+  tls: []
+  #  - secretName: wekan-example-tls
+  #    hosts:
+  #      - wekan-example.local
+
+resources: 
+  requests:
+    memory: 128Mi
+    cpu: 300m
+  limits:
+    memory: 1Gi
+    cpu: 500m
+
+## Node labels for pod assignment
+## ref: https://kubernetes.io/docs/user-guide/node-selection/
+##
+nodeSelector: {}
+
+## Tolerations for pod assignment
+## ref: https://kubernetes.io/docs/concepts/configuration/taint-and-toleration/
+##
+tolerations: []
+
+## Affinity for pod assignment
+## ref: https://kubernetes.io/docs/concepts/configuration/assign-pod-node/#affinity-and-anti-affinity
+##
+affinity: {}
+
+## Configure an horizontal pod autoscaler
+##
+autoscaling:
+  enabled: true
+  config:
+    minReplicas: 1
+    maxReplicas: 16
+    ## Note: when setting this, a `resources.request.cpu` is required. You
+    ## likely want to set it to `1` or some lower value.
+    ##
+    targetCPUUtilizationPercentage: 80
+
+# ------------------------------------------------------------------------------
+# MongoDB:
+# ------------------------------------------------------------------------------
+
+mongodb-replicaset:
+  enabled: true
+  replicas: 3
+  replicaSetName: rs0
+  securityContext:
+    runAsUser: 1000
+    fsGroup: 1000
+    runAsNonRoot: true
+  #image:
+  #  tag: 3.2.21