Hello everyone!

We have been investing plenty of personal time and energy for many years to share our knowledge with you all. However, we now need your help to keep this blog running. All you have to do is just click one of the adverts on the site, otherwise it will sadly be taken down due to hosting etc. costs. Thank you.

This example shows us how to control nginx with supervisor so when nginx goes down for whatever reason, supervisor will bring it up again as a "foreground" process not as a "daemon".


Supervisor uses daemon off; to start Nginx. The daemon off; directive tells Nginx to stay in the foreground. The sudo service nginx stop/start/restart commands won't work. For more information read Stack Overflow answer.

Current nginx process

As you can see below, Nginx is running in "daemon on" mode.

$ ps aux | grep nginx
root 17184 0.0 0.1 124968 1420 ? Ss 16:18 0:00 nginx: master process /usr/sbin/nginx -g daemon on; master_process on;

Setup supervisor

$ sudo nano /etc/supervisor/conf.d/nginx.conf

command=/usr/sbin/nginx -g "daemon off;"

Let supervisor know about new config.

$ sudo supervisorctl reread
nginx: available

Let supervisor start nginx service.

$ sudo supervisorctl update
nginx: added process group

Verify if supervisor started nginx service.

$ sudo supervisorctl
nginx:nginx_00 RUNNING pid 18429, uptime 0:01:47


As you can see below, Nginx is running in "daemon off" mode.

$ ps aux | grep nginx
root 18429 0.0 0.9 124968 9932 ? S 17:20 0:00 nginx: master process /usr/sbin/nginx -g daemon off;


If you want to start/stop a service that is controlled by supervisor, you'll need to use supervisor CLI tool like below.

$ sudo supervisorctl
nginx:nginx_00 RUNNING pid 18429, uptime 0:02:17

supervisor> help
default commands (type help ):
add exit open reload restart start tail
avail fg pid remove shutdown status update
clear maintail quit reread signal stop version

supervisor> stop nginx:nginx_00
nginx:nginx_00: stopped

supervisor> start nginx:nginx_00
nginx:nginx_00: started