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Merge pull request #93 from kherrick/update-readme.md

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update README.md
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Will Sargent 2016-05-17 09:13:43 -07:00
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@ -51,7 +51,7 @@ Quick and easy install script provided by Docker:
curl -sSL https://get.docker.com/ | sh curl -sSL https://get.docker.com/ | sh
``` ```
If you're not willing to run a random shell script, please see the [installation](https://docs.docker.com/installation/) instructions for your distribution. If you're not willing to run a random shell script, please see the [installation](https://docs.docker.com/installation/) instructions for your distribution.
If you are a complete Docker newbie, you should follow the [series of tutorials](https://docs.docker.com/linux/started/) now. If you are a complete Docker newbie, you should follow the [series of tutorials](https://docs.docker.com/linux/started/) now.
@ -215,7 +215,7 @@ Docker.com hosts its own [index](https://hub.docker.com/) to a central registry
### Run local registry ### Run local registry
You can run a local registry by using the [docker distribution](https://github.com/docker/distribution) project and looking at the [local deploy](https://github.com/docker/distribution/blob/master/docs/deploying.md) instructions. You can run a local registry by using the [docker distribution](https://github.com/docker/distribution) project and looking at the [local deploy](https://github.com/docker/distribution/blob/master/docs/deploying.md) instructions.
Also see the [mailing list](https://groups.google.com/a/dockerproject.org/forum/#!forum/distribution). Also see the [mailing list](https://groups.google.com/a/dockerproject.org/forum/#!forum/distribution).
@ -249,7 +249,7 @@ Here are some common text editors and their syntax highlighting modules you coul
* [ARG](https://docs.docker.com/engine/reference/builder/#arg) defines a build-time variable. * [ARG](https://docs.docker.com/engine/reference/builder/#arg) defines a build-time variable.
* [ONBUILD](https://docs.docker.com/reference/builder/#onbuild) adds a trigger instruction when the image is used as the base for another build. * [ONBUILD](https://docs.docker.com/reference/builder/#onbuild) adds a trigger instruction when the image is used as the base for another build.
* [STOPSIGNAL](https://docs.docker.com/engine/reference/builder/#stopsignal) sets the system call signal that will be sent to the container to exit. * [STOPSIGNAL](https://docs.docker.com/engine/reference/builder/#stopsignal) sets the system call signal that will be sent to the container to exit.
* [LABEL](https://docs.docker.com/engine/userguide/labels-custom-metadata/) apply key/value metadata to your images, containers, or daemons. * [LABEL](https://docs.docker.com/engine/userguide/labels-custom-metadata/) apply key/value metadata to your images, containers, or daemons.
### Tutorial ### Tutorial
@ -375,7 +375,7 @@ docker port CONTAINER $CONTAINERPORT
This is where general Docker best practices and war stories go: This is where general Docker best practices and war stories go:
* [The Rabbit Hole of Using Docker in Automated Tests](http://gregoryszorc.com/blog/2014/10/16/the-rabbit-hole-of-using-docker-in-automated-tests/) * [The Rabbit Hole of Using Docker in Automated Tests](http://gregoryszorc.com/blog/2014/10/16/the-rabbit-hole-of-using-docker-in-automated-tests/)
* [Bridget Kromhout](https://twitter.com/bridgetkromhout) has a useful blog post on [running Docker in production](http://sysadvent.blogspot.co.uk/2014/12/day-1-docker-in-production-reality-not.html) at Dramafever. * [Bridget Kromhout](https://twitter.com/bridgetkromhout) has a useful blog post on [running Docker in production](http://sysadvent.blogspot.co.uk/2014/12/day-1-docker-in-production-reality-not.html) at Dramafever.
* There's also a best practices [blog post](http://developers.lyst.com/devops/2014/12/08/docker/) from Lyst. * There's also a best practices [blog post](http://developers.lyst.com/devops/2014/12/08/docker/) from Lyst.
* [A Docker Dev Environment in 24 Hours!](https://engineering.salesforceiq.com/2013/11/05/a-docker-dev-environment-in-24-hours-part-2-of-2.html) * [A Docker Dev Environment in 24 Hours!](https://engineering.salesforceiq.com/2013/11/05/a-docker-dev-environment-in-24-hours-part-2-of-2.html)
* [Building a Development Environment With Docker](https://tersesystems.com/2013/11/20/building-a-development-environment-with-docker/) * [Building a Development Environment With Docker](https://tersesystems.com/2013/11/20/building-a-development-environment-with-docker/)
@ -465,7 +465,7 @@ To enable user namespaces ("remap the userns") in Ubuntu 15.10, [follow the blog
### Security Roadmap ### Security Roadmap
The Docker roadmap talks about [seccomp support](https://github.com/docker/docker/blob/master/ROADMAP.md#11-security). The Docker roadmap talks about [seccomp support](https://github.com/docker/docker/blob/master/ROADMAP.md#11-security).
There is an AppArmor policy generator called [bane](https://github.com/jfrazelle/bane), and they're working on [security profiles](https://github.com/docker/docker/issues/17142). There is an AppArmor policy generator called [bane](https://github.com/jfrazelle/bane), and they're working on [security profiles](https://github.com/docker/docker/issues/17142).
## Tips ## Tips
@ -478,25 +478,25 @@ Sources:
``` ```
alias dl='docker ps -l -q' alias dl='docker ps -l -q'
docker run ubuntu echo hello world docker run ubuntu echo hello world
docker commit `dl` helloworld docker commit $(dl) helloworld
``` ```
### Commit with command (needs Dockerfile) ### Commit with command (needs Dockerfile)
``` ```
docker commit -run='{"Cmd":["postgres", "-too -many -opts"]}' `dl` postgres docker commit -run='{"Cmd":["postgres", "-too -many -opts"]}' $(dl) postgres
``` ```
### Get IP address ### Get IP address
``` ```
docker inspect `dl` | grep IPAddress | cut -d '"' -f 4 docker inspect $(dl) | grep IPAddress | cut -d '"' -f 4
``` ```
or install [jq](https://stedolan.github.io/jq/): or install [jq](https://stedolan.github.io/jq/):
``` ```
docker inspect `dl` | jq -r '.[0].NetworkSettings.IPAddress' docker inspect $(dl) | jq -r '.[0].NetworkSettings.IPAddress'
``` ```
or using a [go template](https://docs.docker.com/reference/commandline/inspect) or using a [go template](https://docs.docker.com/reference/commandline/inspect)
@ -514,7 +514,7 @@ docker inspect -f '{{range $p, $conf := .NetworkSettings.Ports}} {{$p}} -> {{(in
### Find containers by regular expression ### Find containers by regular expression
``` ```
for i in $(docker ps -a | grep "REGEXP_PATTERN" | cut -f1 -d" "); do echo $i; done` for i in $(docker ps -a | grep "REGEXP_PATTERN" | cut -f1 -d" "); do echo $i; done
``` ```
### Get Environment Settings ### Get Environment Settings
@ -538,7 +538,7 @@ docker ps -a | grep 'weeks ago' | awk '{print $1}' | xargs docker rm
### Delete stopped containers ### Delete stopped containers
``` ```
docker rm -v `docker ps -a -q -f status=exited` docker rm -v $(docker ps -a -q -f status=exited)
``` ```
### Delete dangling images ### Delete dangling images
@ -571,12 +571,12 @@ docker images -viz | dot -Tpng -o docker.png
### Slimming down Docker containers [Intercity Blog](http://bit.ly/1Wwo61N) ### Slimming down Docker containers [Intercity Blog](http://bit.ly/1Wwo61N)
- Cleaning APT in a RUN layer - Cleaning APT in a RUN layer
This should be done in the same layer as other apt commands. This should be done in the same layer as other apt commands.
Otherwise, the previous layers still persist the original information and your images will still be fat. Otherwise, the previous layers still persist the original information and your images will still be fat.
``` ```
RUN {apt commands} \ RUN {apt commands} \
&& apt-get clean \ && apt-get clean \
&& rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/* && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
``` ```
- Flatten an image - Flatten an image