If like me you didn’t know, you can do that with Capistrano:
1 $ cap HOSTS=web0.myapp.com deploy:update_code 2 cap ROLES=web,app deploy
Not terribly useful for the tasks demonstrated above, but what about this ?
1 $ cap ROLES=app monit:summary
Incidentally, where are these documented ? I dimly remembered reading this somewhere once, and tried it. Works like a charm!