Nginx+ uwsgi gives 502 Bad Gateway

I saw your post yesterday, just searching for an answer for exactly the same issue. Finally, today I reached the root of the problem.

I suppose you specify the chdir in your .ini config file as the directory where your project is located. I mean that if for example your project is 'myproject' and you have it in '/var/www/myproject' directory, you specify '/var/www' as the chdir.

So, the path for all internal resources is not well defined, and Python interpereter (may be you are using Django?) does not reach them. Ok, I will explain how a solution works in a Django project. For example, suppose that you have an app inside your project called 'app1'; in your views module you are calling for a forms defined in your forms module; you will be doing this like that:

from app1.forms import *

okay? Well, the thing is that the path is not well defined for uwsgi. You should now define this like that:

from myproject.app.forms import *

and you will see that everything is working now. No more 502 Bad Gateway errors will appear for you :)

Yes, I know that is not very elegant to add 'myproject.' to every internal resource calling. So, you can simply add this to your 'settings.py' file:

sys.path.append('/var/www/myproject/')

Substitute '/var/www/' for the path where your project is located on your machine. With this tiny solution, every started working for me :)

I hope my comment helps you.

Cheers, Jose

I detected where (yet not what) was causing the error: a template module in the CMS extensions that is not working properly. Disabling the module made the error go away. Anyway, thanks for your opinions and efforts!