Enabled supervisorctl

docker/supervisord.conf

 [supervisord]
 nodaemon=true
 
+[rpcinterface:supervisor]
+supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface
+
+[supervisorctl]
+serverurl=unix:///var/run/supervisor.sock
+
+[unix_http_server]
+file=/var/run/supervisor.sock
+
 [group:web]
 programs=php-fpm,apache,cron