deploy.rb

require "bundler/capistrano"

set :application, "your_app"

# multistage
set :stages, ["staging", "production"]
set :default_stage, "staging"

require "capistrano/ext/multistage"

# whenever
set :whenever_command, "bundle exec whenever"
set :whenever_environment, defer { stage }
set :whenever_identifier, defer { "#{application}_#{stage}" }

require "whenever/capistrano"

# SCM settings
set :repository,  "ssh://example.com/repo.git"
set :scm, :git
set :scm_username, "deploy"
set :scm_verbose, true
set :deploy_via, :remote_cache

set :user, "deploy"
set :use_sudo, false

role :web, "example.com"
role :app, "example.com"
role :db,  "example.com", :primary => true

set :deploy_to, defer { "/var/www/apps/#{application}/#{stage}" }

namespace :deploy do
  task :start do ; end
  task :stop do ; end
  task :restart, :roles => :app, :except => { :no_release => true } do
	run "#{try_sudo} touch #{File.join(current_path,'tmp','restart.txt')}"
  end
end

after "deploy:restart", "deploy:cleanup"

production.rb

# deploy/production.rb
set :branch, "master"
set :rails_env, "production"

staging.rb

# deploy/staging.rb
set :branch, "staging"
set :rails_env, "staging"