Nginx support multiple hostnames - django

Question

I am working on my django + nginx + docker-compose project
I want to access my site via ip and mysite.com
Problem -- ip url is working, but mysite.com returns error:
403 Forbidden Nginx
My code - docker-compose.yml
services:
django:
build: ./project # path to Dockerfile
command: sh -c "
sleep 3 && gunicorn --bind 0.0.0.0:8000 core_app.wsgi"
...
expose:
- 8000
env_file:
- ./.env
depends_on:
- db
nginx:
image: nginx:1.19.8-alpine
depends_on:
- django
env_file:
- ./.env
ports:
- "80:80"
volumes:
- ./project/nginx-conf.d/:/etc/nginx/conf.d
...
nginx-conf.conf
upstream app {
server django:8000;
}
server {
listen 80;
server_name 127.0.0.1 mysite.com www.mysite.com;
location / {
proxy_pass http://django:8000;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $host;
proxy_redirect off;
}
location /static/ {
alias /var/www/html/static/;
}
}
UPDATE
I was trying to replace proxy_pass http://django:8000; with proxy_pass http://app; but it didn't help

Answer 1

Value of proxy_pass is incorrect.
When you're referencing an upstream group, you've to pass the name of the group to proxy_pass.
In your case, the name of upstream group is "app". So the value of proxy_pass should look like this:
proxy_pass http://app;