How to deploy and manage web processes (puma, nginx) on one set of servers, and worker processes(resque / sidekiq) on other set of servers? about mina-multi_server HOT 1 CLOSED

There is no such a thing as roles, but maybe having different tasks could solve what you need.
Something like this:

task :web do
  set :servers, ['www1.example.com', 'www2.example.com']
end

task :workers do
  set :servers, ['worker1.example.com', 'worker2.example.com']
end

Then you can call the two tasks (assuming there are tasks named deploy):

$ mina web deploy
$ mina workers deploy

If you want, you can create a bash script in order to run just one command. See #1 to see how.

from mina-multi_server.