deploy.rb

require "bundler/capistrano"

set :application, '(1)'#Name
set :user, '(2)' #User
set :use_sudo, false
set :repository,  '(3)' #Repositorio
set :deploy_to, "/home/#{user}/www/#{application}"
set :deploy_via, (4) #:remote_cache or :copy
set :scm, :git
set :branch, 'master' 
set :git_enable_submodules, true
set :keep_releases, 10
set :unicorn_pid, "#{shared_path}/pids/unicorn.pid"

role :app, '(5)'#IP
role :web, '(6)'#IP
role :db,  '(7)', :primary => true #IP

namespace :deploy do

  desc "Make symlink for database.yml"
  task :symlink_dbyaml do
    run "ln -nfs #{shared_path}/config/database.yml #{release_path}/config/database.yml" 
  end
 
  desc "Reload the database with seed data"
  task :seed do
    run "cd #{current_path}; rake db:seed RAILS_ENV=#{rails_env}"
  end

  desc "Make symlink for images"
  task :symlink_images do
    run "ln -nfs #{shared_path}/system #{release_path}/public/system"
  end
end

namespace :unicorn do
  task :start, :roles => :app, :except => { :no_release => true} do
    run "cd #{current_path} && bundle exec unicorn_rails -c #{current_path}/config/unicorn.rb -D -E production"
  end

  task :stop, :roles => :app, :except => { :no_release => true} do
    run "kill `cat #{unicorn_pid}` || true"
  end
  
  task :reload, :roles => :app, :except => { :no_release => true } do
    run "kill -s USR2 `cat #{unicorn_pid}` || true"
  end

  task :restart, :roles => :app, :except => { :no_release => true } do
    stop
    start
  end

  after "deploy:restart", "unicorn:restart"
end

desc "Tarefa para criar as configurações do banco em produção"
task :create_database_config do
	configs =<<-EOF
production:
  adapter: mysql2
  encoding: utf8
  reconnect: false
  database: (8) 
  pool: 5
  username: (9)
  password: (10)
  host: localhost
EOF
	run "mkdir -p #{shared_path}/config"
	put configs, "#{shared_path}/config/database.yml"
end

task :create_images do
	run "mkdir -p #{shared_path}/images/system"
end

after 'deploy:update_code', 'deploy:symlink_dbyaml'
after "deploy", "deploy:cleanup"
after "deploy", "deploy:symlink_images"
after 'deploy:setup', 'create_database_config'