For a very long time, Capistrano was, without any doubt, the de-facto tool to deploy your dynamic languages applications. Now there is a better one, Ansible based, called Ansistrano. Ansistrano was initially created by Carlos Buenosvinos and is a set of 2 Ansible roles: deploy and rollback. It has almost 200 stars on Github and some large companies are already using it. In this video you can see how to deploy a small Silex application and you can also see how to rollback and add a small hook reloading the opcache in your production servers.