DockerHouston

DockerHouston is a utility for deploying rails app into a docker environments.

It builds on the top of Capistrano for different deployment to a docker host.

DockerHouston comes with a generator to copy and templates all necessary config files and to the target rails project.

###Prerequisite Make sure you have access to the docker_host with the user as deploy.

Add this line to your application's Gemfile:

gem 'docker_houston'

And then execute:

$ bundle

Or install it yourself as:

$ gem install docker_houston

Add unicorn to gemfile and ensure the therubyracer is enabled.

gem 'therubyracer', platforms: :ruby

gem 'unicorn'

rails g docker_houston:install APP_NAME APP_DOMAIN DOCKER_HOST

APP_NAME: the app name for your project.

APP_DOMAIN: the virtual url for the app.

DOCKER_HOST: the remote host for docker instance.

###Make bin/docker executable

chmod +x bin/docker

##Custom Command Cap Command

cap -T

Check all the docker command that is avaiable to you.

cap staging docker:lift_off

This will we do the following:

invoke 'deploy'
invoke 'docker:setup_db'
invoke 'docker:build_container'
invoke 'docker:stop'
invoke 'docker:start'
invoke 'docker:cleanup_containers'
invoke 'docker:cleanup_images'
invoke 'docker:notify'

• Deploy a new version to the current folder.
• Build the container for it.
• Stop the current running containers if existed.
• Start new container for the project.
• Clean up exited containers
• Clean up unlinked images
• Notifying to Team channel

You can also run console command insdie the rails app within the docker container.

cap staging docker:console

To integrate with your IM chat, Slack or HipChat Provide the following ENV variables to enable that service:

####Slack

SLACK_WEBHOOK_URL=https://hooks.slack.com/services/TXXXXX/BXXXXX/XXXXXXXXXX
SLACK_CHANNEL=general

####HipChat

HIPCHAT_TOKEN=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
HIPCHAT_ROOM=Water Cooler

The deploy message reads: "New version of #{fetch(:app_name)} has been deployed at #{fetch(:app_domain)}."

Bug reports and pull requests are welcome on GitHub at https://github.com/alex-zige/docker_houston. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.

The gem is available as open source under the terms of the MIT License.