use supervisord in image

nix/image/configs/supervisor/supervisord.conf

@@ -0,0 +1,25 @@
+[supervisord]
+logfile = /dev/stdout
+logfile_maxbytes = 0
+nodaemon = true
+pidfile = /var/run/supervisord.pid
+
+[unix_http_server]
+file = /var/run/supervisor.sock
+chmod = 0777
+
+
+[rpcinterface:supervisor]
+supervisor.rpcinterface_factory = supervisor.rpcinterface:make_main_rpcinterface
+
+[supervisorctl]
+serverurl = unix:///var/run/supervisor.sock
+
+[program:nginx]
+command = /bin/nginx -c /etc/nginx.conf
+
+[program:php-fpm]
+command = /bin/php-fpm --fpm-config /etc/php-fpm.conf
+
+[include]
+files = enabled/*