Add default sidekiq_user value + documentation

README.md

@@ -50,6 +50,7 @@ Configurable options, shown here with defaults:
     :sidekiq_monit_use_sudo => true
     :sidekiq_cmd => "#{fetch(:bundle_cmd, "bundle")} exec sidekiq" # Only for capistrano2.5
     :sidekiqctl_cmd => "#{fetch(:bundle_cmd, "bundle")} exec sidekiqctl" # Only for capistrano2.5
+    :sidekiq_user => nil #user to run sidekiq as
 ```
 
 There is a known bug that prevents sidekiq from starting when pty is true on Capistrano 3.

lib/capistrano/tasks/capistrano2.rb

@@ -21,6 +21,8 @@
   _cset(:sidekiq_processes) { 1 }
   _cset(:sidekiq_options_per_process) { nil }
 
+  _cset(:sidekiq_user) { nil }
+
   if fetch(:sidekiq_default_hooks)
     before 'deploy:update_code', 'sidekiq:quiet'
     after 'deploy:stop', 'sidekiq:stop'

lib/capistrano/tasks/sidekiq.rake

@@ -9,6 +9,7 @@ namespace :load do
     set :sidekiq_role, -> { :app }
     set :sidekiq_processes, -> { 1 }
     set :sidekiq_options_per_process, -> { nil }
+    set :sidekiq_user, -> { nil }
     # Rbenv and RVM integration
     set :rbenv_map_bins, fetch(:rbenv_map_bins).to_a.concat(%w(sidekiq sidekiqctl))
     set :rvm_map_bins, fetch(:rvm_map_bins).to_a.concat(%w(sidekiq sidekiqctl))