Nginx subdomain config for Gunicorn server - nginx

Question

I have two servers running on a DigitalOcean droplet. One is a Django/Wagtail application served with Gunicorn (used as a headless CMS), and the other is a SSR Nuxt.js app (front-end). Using the following nginx configuration I’ve made the Nuxt app available at example.com (works great), and now I’m trying to make my Django/Wagtail application available at the subdomain cms.example.com. (I’ve modified my local hosts file so the domain example.com actually functions)
/etc/nginx/sites-available/default
server {
listen 80;
listen [::]:80;
server_name example.com;
location / {
proxy_pass http://localhost:3000;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection 'upgrade';
proxy_set_header Host $host;
proxy_cache_bypass $http_upgrade;
}
}
server {
listen 80;
listen [::]:80;
server_name cms.example.com;
location / {
include proxy_params;
proxy_pass http://unix:/home/thomas/daweb/cms/cms.sock;
}
}
/etc/nginx/proxy_params
proxy_set_header Host $http_host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
Result from curl --unix-socket /home/thomas/daweb/cms/cms.sock cms.example.com is html of the default Wagtail landing page, no errors.
However navigating to cms.example.com just gives me a connection error. If I swap the two, I can see the Wagtail interface at example.com, so I know they’re both working. However, I can’t seem to figure out how to configure a subdomain and I struggle to understand the nginx documentation. Also similar questions about configuring subdomains are usually about making static files available, not listening to active ports.
One extra layer of trouble is that the Wagtail CMS is accessible at /admin of its server root, so I’d like to make that page appear at cms.example.com rather than having to navigate to cms.example.com/admin. Any help would be greatly appreciated!

Answer 1

Check what is contained in /etc/nginx/proxy_params. I would expect something like this:
proxy_set_header Host $http_host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
Also, to be sure Gunicorn is working correctly, try:
curl --unix-socket /home/thomas/daweb/cms/cms.sock cms.example.com