nginx.service: Failed to read PID from file /run/nginx.pid: Invalid argument

Question

I\'m working through https://www.digitalocean.com/community/tutorials/how-to-serve-django-applications-with-uwsgi-and-nginx-on-ubuntu-16-04. I\'ve completed the tut but I\'m

Answer 1

That warning with the nginx.pid file is a know bug (at least for Ubutnu if not for other distros as well). More details here: https://bugs.launchpad.net/ubuntu/+source/nginx/+bug/1581864

Workaround (on a ssh console, as root, use the commands bellow):

mkdir /etc/systemd/system/nginx.service.d
printf "[Service]\nExecStartPost=/bin/sleep 0.1\n" > /etc/systemd/system/nginx.service.d/override.conf
systemctl daemon-reload
systemctl restart nginx 

Then check if you still see that nginx.pid error and also if nginx is actually running and if you can connect to port 80 on your server.

I would also check if this actually exists and the permissions on it:

/run/uwsgi/mysite3.sock

If nginx is running and uWSGI is running as well then I guess it's a configuration problem

I understand you want to use Django so I would recommend to review your actual configuration and compare it with the one from here:

http://uwsgi-docs.readthedocs.io/en/latest/tutorials/Django_and_nginx.html

I hope it helps!