Deploy com Mina, Docker e Docker Compose

deploy.rb

require 'mina/bundler'
require 'mina/rails'
require 'mina/git'
require 'mina/rbenv'  # for rbenv support. (http://rbenv.org)
# require 'mina/rvm'    # for rvm support. (http://rvm.io)

set :domain, 'mydomain.com'
set :deploy_to, '/var/www/mysite'
set :repository, 'git@github.com:mysite/mysite.git'
set :branch, 'master'
set :user, 'user'
set :forward_agent, true
set :term_mode, nil

# For system-wide RVM install.
#   set :rvm_path, '/usr/local/rvm/bin/rvm'

# Manually create these paths in shared/ (eg: shared/config/database.yml) in your server.
# They will be linked in the 'deploy:link_shared_paths' step.

# Optional settings:

# This task is the environment that is loaded for most commands, such as
# `mina deploy` or `mina rake`.
task :environment do
  # If you're using rbenv, use this to load the rbenv environment.
  # Be sure to commit your .ruby-version or .rbenv-version to your repository.
  # invoke :'rbenv:load'

  # For those using RVM, use this to load an RVM version@gemset.
  # invoke :'rvm:use[ruby-1.9.3-p125@default]'
end

# Put any custom mkdir's in here for when `mina setup` is ran.
# For Rails apps, we'll make some of the shared paths that are shared between
# all releases.
task :setup => :environment do

  queue! %[mkdir -p "#{deploy_to}/#{shared_path}/log"]
  queue! %[chmod g+rx,u+rwx "#{deploy_to}/#{shared_path}/log"]

  queue! %[mkdir -p "#{deploy_to}/#{shared_path}/config"]
  queue! %[chmod g+rx,u+rwx "#{deploy_to}/#{shared_path}/config"]

  queue! %[touch "#{deploy_to}/#{shared_path}/config/database.yml"]
  queue! %[touch "#{deploy_to}/#{shared_path}/config/secrets.yml"]
  queue  %[echo "-----> Be sure to edit '#{deploy_to}/#{shared_path}/config/database.yml' and 'secrets.yml'."]

  # Docker dotenv files
  queue! %[mkdir -p "#{deploy_to}/#{shared_path}/vendor"]
  queue! %[touch "#{deploy_to}/#{shared_path}/vendor/env.web"]
  queue! %[touch "#{deploy_to}/#{shared_path}/vendor/env.db"]
end

desc "Deploys the current version to the server."
task :deploy => :environment do
  set :volumes, %Q{VOLUMES_FROM="#{deploy_to}/#{shared_path}/config:/config" }

  to :before_hook do
  end

  deploy do
    invoke :'git:clone'

    to :launch do
      queue  %[echo "-----> Building docker container."]
      queue! %[docker-compose build]
      queue  %[echo "-----> Stopping docker container."]
      queue! %[docker stop $(docker ps -qa)]
      queue! %[docker rm $(docker ps -qa)]
      queue! %[#{volumes} docker-compose stop]
      queue  %[echo "-----> Migrate data."]
      queue! %[#{volumes} docker-compose run --rm web rake db:create db:migrate db:seed]
      queue  %[echo "-----> Starting containers."]
      queue! %[#{volumes} docker-compose up -d]
    end
  end
end

namespace :docker do
  desc "Start docker container"
  task start: :environment do
    queue "cd #{deploy_to}/#{current_path}"
    queue %[echo "-----------------> #{volumes}"]
  end 

  task migrate: :environment do
    queue "cd #{deploy_to}/#{current_path}"
    queue "#{volumes} docker-compose run --rm web rake db:migrate db:seed"
  end

  task precompile: :environment do
    queue "cd #{deploy_to}/#{current_path}"
    queue "#{volumes} docker-compose run --rm web rake assets:precompile"
  end

  desc "Stop docker container"
  task stop: :environment do
    queue "cd #{deploy_to}/#{current_path}"
    queue "#{volumes} docker-compose stop web"
  end

  desc "Restart docker container web"
  task restart: :environment do
    queue "#{volumes} docker-compose restart web"
  end

  desc "Remove all stop container"
  task clean_containers: :environment do
    queue "#{volumes} docker rm $(sudo docker ps -a -q)"
  end


  task status: :environment do
    queue "cd #{deploy_to}/#{current_path}"
    queue "docker-compose ps"
  end
end

docker-compose.yml

db:
  image: mysql
  container_name: database_app
  expose:
    - "3306"
  ports:
    - "3306:3306"
  environment:
    MYSQL_ROOT_PASSWORD: password
#  env_file:
#    - 'vendor/env.db'

web:
  build: .
  container_name: web_app
  command: rails s -b 0.0.0.0
  volumes:
    - '$VOLUMES_FROM'
  ports:
    - 3000:3000
  links:
    - db:db
    - es:es
    - redis:redis
  environment:
    ELASTICSEARCH_URL: http://es:9200/
    REDIS_URL: redis://redis:6379/
    SECRET_KEY_BASE: c32ec72d93f7d036ff7671e19b486f963ac843d633e875c71ee86b6280287392f45e33887850c4aab8ed29755fc4ba788be7f2cffb97d2f68225df027797f344
    APP_DATABASE_PASSWORD: root
#  env_file:
#    - 'vendor/env.web'

nginx:
  build: ./lib/nginx
  container_name: nginx_app
  restart: always
  volumes:
    -  /www/public
  volumes_from:
    - web
  ports:
    - 80:80
  links:
    - web:web

es:
  build: ./lib/elasticsearch
  container_name: es
  ports:
    - 9200:9200
    - 9300:9300

redis:
  image: redis
  container_name: redis
  ports:
    - 6379:6379

Dockerfile

FROM rails:4.2.3

MAINTAINER Renato Filho <renatosousafilho@gmail.com>

ENV HOME /home/app
ENV RAILS_ENV development

RUN useradd -m -s /bin/bash app

RUN gem install -N bundler

ADD . /home/app/
WORKDIR /home/app

RUN bundle install --jobs=50

RUN ln -sf /config/database.yml $HOME/config/database.yml