Dockerchain

Build a series of docker images from a set of dockerfiles, chaining the output of one into the next.

Installation

git clone git@github.com:jeremiahishere/dockerchain.git
cd dockerchain
bundle install

If necessary, clone [email protected]:jeremiahishere/dockerfile_ast.git and manually install it.

Usage

write a yml file similar to sshable.yml. The script will automatically prepend the image_name field with 'dockerchain/'. The repos should have a Dockerfile in their root directory and must be available to the current user.

run bundle exec dockerchain path/to/my_config_file.yml

How it works

  1. Write a yaml file if records that look like this

     - image_name: sshable
   repo_url: https://github.com/imightbeinatree/docker-sshable.git

  2. Install the dockerfile_ast gem located at http://github.com/jeremiahishere/dockerfile_ast

  3. Parse the yaml file and loop through the repos

    1. clone the first repo into the repos directory
    2. run docker build -t dockerchain/<image_name> on the dockerfile in the directory
    3. go to the next directory
    4. run ruby replace_dockerfile_from.rb /path/to_dockerfile previous_build_name on the Dockerfile in the repo
    5. run docker build -e dockerchain/<second_image_name> on the new dockerfile
    6. repeat 3.1 through 3.5 on all of the repos in the yaml file, changing the image name for each one

Contributing

  1. Fork it ( http://github.com//dockerchain/fork )
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Add some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create new Pull Request