Capistrano deploy script example example

gistfile1.txt

require "capistrano"
require "bundler/capistrano"
require "capistrano-resque"

set :default_environment, {
    #path to your ruby environment on server
    'PATH' => "/usr/local/rvm/rubies/ruby-1.9.3-p392/bin/:/usr/local/rvm/bin:$PATH" 
}

ssh_options[:forward_agent] = true
default_run_options[:pty] = true

set :application, "MyApplication"
set :rails_env, "production"
set :domain, "[email protected]"
set :deploy_to, "/usr/share/nginx/www/#{application}"
set :unicorn_conf, "#{deploy_to}/current/config/unicorn.rb"
set :unicorn_pid, "#{deploy_to}/shared/unicorn.pid"
set :shared_children, shared_children + %w{public/uploads}
set :use_sudo, fetch(:sudo, false)

set :scm, :mercurial #or :git
set :repository, "ssh://[email protected]/user/repository"
set :branch, fetch(:branch, "default")

role :web, domain # Your HTTP server, Apache/etc
role :app, domain # This may be the same as your `Web` server
role :db, domain, :primary => true # This is where Rails migrations will run

#resque
role :resque_worker, domain
role :resque_scheduler, domain
set :workers, {'*' => 1}

before "deploy:update_code", "assets:precompile"
after "deploy:create_symlink", "deploy:migrate", "assets:upload"
after "deploy:restart", "resque:stop", "resque:start"
after "deploy:restart", "mailman:restart"

namespace :deploy do
  task :restart do
    run "if [ -f #{unicorn_pid} ] && [ -e /proc/$(cat #{unicorn_pid}) ]; then kill -USR2 `cat #{unicorn_pid}`; else cd #{deploy_to}/current && bundle exec unicorn -c #{unicorn_conf} -E #{rails_env} -D; fi"
  end
  task :start do
    run "cd #{deploy_to}/current && bundle exec unicorn -c #{unicorn_conf} -E #{rails_env} -D"
  end
  task :stop do
    run "if [ -f #{unicorn_pid} ] && [ -e /proc/$(cat #{unicorn_pid}) ]; then kill -QUIT `cat #{unicorn_pid}`; fi"
  end
  task :migrate do
    run "cd #{deploy_to}/current && bundle exec rake db:migrate RAILS_ENV=#{rails_env}"
  end
end

#mailman if you have
namespace :mailman do
  [:start, :stop, :status, :restart].each do |task_name|
    task task_name do
      run "cd #{deploy_to}/current && bundle exec rake mailman:#{task_name.to_s} RAILS_ENV=#{rails_env}"
    end
  end
end

#compile assets localy
namespace :assets do
  task :precompile do
    run_locally("bundle exec rake assets:clean")
    run_locally("bundle exec rake assets:precompile")
    run_locally("touch assets.tgz && rm assets.tgz")
    run_locally("tar zcf assets.tgz public/assets/")
    run_locally("mv assets.tgz public/assets/")
  end

  task :upload do
    transfer(:up, "public/assets/assets.tgz", "#{deploy_to}/current/assets.tgz")
    run "cd #{deploy_to}/current/; tar zxf assets.tgz; rm assets.tgz"
    run_locally("bundle exec rake assets:clean")
  end
end