Using staging servers in Capistrano and Rails

I was looking for a way to deploy our website to different servers and this snippet did it very well.

The idea is very simple: in config/deploy.rb create a couple of new tasks to set the deployment variables:

task :production do
  role :web, "production.server.com"
  role :app, "production.server.com"
  role :db,  "production.server.com", :primary=>true
end

task :staging do
  role :web, "staging.server.com"
  role :app, "staging.server.com"
  role :db,  "staging.server.com", :primary=>true
end

After these tasks were added you can deploy using cap staging deploy or cap production deploy.