DockerDeploy
Deploy docker containers via Rake. This is especially useful for dockerized Ruby applications.
Installation
Add this line to your application's Gemfile:
gem "docker_deploy", require: false
Usage
In your Rakefile define your deployment setup like this:
require "docker_deploy"
DockerDeploy.task do
image "elabs/projectpuzzle"
env "RAILS_ENV" => "production"
port 80 => 3000
stage :staging do
server "[email protected]"
env "CANONICAL_HOST" => "staging.projectpuzzle.com"
host "http://staging.projectpuzzle.com"
end
stage :production do
server "[email protected]"
server "[email protected]"
env "CANONICAL_HOST" => "projectpuzzle.com"
host "http://projectpuzzle.com"
end
end
If you're packaging a Rails application you might want to add this in
lib/tasks/docker.rake instead.
DockerDeploy has now generated a ton of rake tasks for you. You can inspect which ones are available by running:
rake -T docker
To deploy your application to the server, the server must have docker installed
and running and available without sudo. See the docker documentation on setting
this up. Try running:
rake docker:staging:deploy
This should package your application, send it to the docker registry, pull it down on the remote server and finally run it as a docker container.
Adding a Dockerfile
These instructions assume you already have a Dockerfile set up. If you want to package a Rails application, this might give you something to get you started:
FROM rails:onbuild
RUN bundle exec rake assets:precompile
Known issues
- The
consoletask is currently broken. We were unable to figure out how to create an interactive session viasshkit.