puppet: Always create a uwsgi master control socket.

This is potentially useful even with rolling restarts disabled.

puppet/zulip/manifests/app_frontend_base.pp

@@ -119,12 +119,6 @@ class zulip::app_frontend_base {
     notify  => Service[$zulip::common::supervisor_service],
   }
 
-  $uwsgi_rolling_restart = zulipconf('application_server', 'rolling_restart', '')
-  if $uwsgi_rolling_restart == '' {
-    file { '/home/zulip/deployments/uwsgi-control':
-      ensure => absent,
-    }
-  }
   $uwsgi_listen_backlog_limit = zulipconf('application_server', 'uwsgi_listen_backlog_limit', 128)
   $uwsgi_buffer_size = zulipconf('application_server', 'uwsgi_buffer_size', 8192)
   $uwsgi_processes = zulipconf('application_server', 'uwsgi_processes', $uwsgi_default_processes)

puppet/zulip/templates/uwsgi.ini.template.erb

@@ -15,6 +15,9 @@ chown-socket=zulip:zulip
 socket=/home/zulip/deployments/uwsgi-socket
 listen=<%= @uwsgi_listen_backlog_limit %>
 
+# Create a control socket, allowing fancier runtime control
+master-fifo=/home/zulip/deployments/uwsgi-control
+
 
 
 # How many serving processes to fork
@@ -47,9 +50,6 @@ hook-post-fork=chdir:/home/zulip/deployments/current
 # https://uwsgi-docs.readthedocs.io/en/latest/articles/TheArtOfGracefulReloading.html#preforking-vs-lazy-apps-vs-lazy
 lazy-apps=true
 
-# Create a control socket, allowing fancier runtime control
-master-fifo=/home/zulip/deployments/uwsgi-control
-
 
 
 <% end -%>