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Getting started

To install docker and the necessary tools on OSX, run:

brew install boot2docker

To initialize the linux VM and setup your shell, run:

boot2docker --iso-url=https://github.com/boot2docker/boot2docker/releases/download/v1.5.0/boot2docker.iso download
boot2docker init
boot2docker start
$(boot2docker shellinit)

The first line is to avoid an issue with docker client/server version mismatch, as discussed here.

The last line exports the necessary environment variables in order to interact with the docker daemon inside the virtual machine from the OSX host.

You should be able to verify that the docker client on OSX can connect to the server running inside of the virtual machine by running docker images, for example, and seeing no errors...

$ docker images                                                                         ~/code/docker-example  
REPOSITORY          TAG                 IMAGE ID            CREATED             VIRTUAL SIZE

Fetching a base container

To fetch the official Ubuntu 12.04 base container, run:

docker pull ubuntu:12.04

To view this image, run:

docker images

...it will likely be listed multiple times since it can be referenced multiple ways (12.04, precise, 12.04.5).

Take a look at the Dockerfile in this repo. Feel free to change the MAINTAINER to your own account on docker hub, so you can push later.

To build a docker image from this file, run:

docker build -t dicato/docker-example:v1 .

...replacing dicato with your username.

To run a container off of this image, run:

docker run -p 8000:8000 -t -i dicato/docker-example:v1

Since the container is being run interactive, you should see the output of runserver:

...<snip>...
February 12, 2015 - 03:37:50
Django version 1.7.4, using settings 'docker_example.settings'
Starting development server at http://127.0.0.1:8000/
Quit the server with CONTROL-C.

From OSX, determine the IP address of the boot2docker virtual machine:

boot2docker ip

Connect the the django runserver with a browser by navigating to http://$(boot2docker ip):8000.

Pull this container

Don't feel like walking through this step by step? Just pull this container from the docker registry and run it:

docker pull dicato/docker-example
docker run -p 8000:8000 -t -i dicato/docker-example:v1

Next steps

Get this container running in a coreos cluster...

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dicato
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