How do I run a rake task from Capistrano?

Question

I already have a deploy.rb that can deploy my app on my production server.

My app contains a custom rake task (a .rake file in the lib/tasks directory).

I\

Answer 1

This worked for me:

task :invoke, :command do |task, args|
  on roles(:app) do
    within current_path do
      with rails_env: fetch(:rails_env) do
        execute :rake, args[:command]
      end
    end
  end
end

Then simply run cap production "invoke[task_name]"