[Supervisor-users] Supervisord and Nginx configuration

[Chris McDonough]

"sudo kill -INT `cat /var/run/nginx.pid`" is not how you start nginx actually. 
  That's how you might *restart* an already running nginx (at least one which 
isn't managed by supervisor), but since it's not running yet, it's not relevant.

I don't know the magic command to make this work because I've never used nginx, 
but in general, you need to get nginx to run:

- in the foreground
- as the same user as the person (or process) which started supervisor

   - OR -

- as the user implied by "user = someuser" (someuser)

Getting ngnix to run in the foreground is apparently accomplished by setting 
"daemon off" in the nginx config file, at least according to 
http://www.ruby-forum.com/topic/152245 .

Making sure it's running as "the right" user is another issue.  This depends 
entirely on your setup.

Mark Jarecki wrote:
> Hi there,
> 
> just another question. How do I configure the supervisord.conf file to enable the control of Nginx?
> 
> Killing Nginx is typically:
> sudo kill -INT `cat /var/run/nginx.pid`
> 
> The Nginx section in my supervisord.conf is:
> 
> [program:nginx]
> command=sudo /usr/local/sbin/nginx
> stopsignal=INT
> user=someuser
> 
> This does nothing but generate errors when I run:
> 
> sudo supervisorctl stop nginx
> 
> The error:
> FAILED: unknown problem killing nginx (163):Traceback (most recent call last):
>   File "/usr/local/lib/python2.6/site-packages/supervisor-3.0a7-py2.6.egg/supervisor/process.py", line 383, in kill
>     options.kill(self.pid, sig)
>   File "/usr/local/lib/python2.6/site-packages/supervisor-3.0a7-py2.6.egg/supervisor/options.py", line 1064, in kill
>     os.kill(pid, signal)
> OSError: [Errno 1] Operation not permitted
> 
> Then when i run sudo supervisorctl status, I get:
> 
> nginx                            UNKNOWN  
> 
> If anyone could point me in the right direction, that would be greatly appreciated.
> 
> Cheers,
> 
> Mark
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