How to deploy to a single specific server using Capistrano

I ended up posting a question on the capistrano users list here, and got the following response from Jamis (edited a bit by me here for clarity): Try the HOSTS environment variable: cap HOSTS=app2.example.com production deploy Note that doing this will treat app2 as being in every role, not just whichever role(s) it happens to be declared in. If what you want is to do a regular deploy, but only ac