How to debug a bunch of nginx, gunicorn, django?

Question

Django

I did everything according to the recipe djbook.ru/forum/topic/2416
- installed a virtual environment, django, gunicorn, nginx, supervisor
- set up configuration files
but still the site does not start.
How can you track exactly where you screwed up?

Answer 1

It was necessary to open port 80.

Answer 2

Try to start without a supervisor - nginx, your Django project. Proxy the request from nginx to port 8000 of the local djanga server. This is the first iteration.
Then screw on the gunicorn. Now nginx will proxy requests to gunicorn, and it will run your project. This is the second iteration.
Then supervisor. Now the supervisor will pick up the gunicorn from under him, nginx works offline. For a start, this is enough for you.

nginx:
server {
  listen 80;
  server_name example.com; #либо ip, либо доменное имя

  location / {
      proxy_pass http://127.0.0.1:8000;
      proxy_set_header Host $server_name;
      proxy_set_header X-Real-IP $remote_addr;
      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
  }
}

django:
python manage.py runserver