nginx.conf

server {
    listen 7860 default_server;
    listen [::]:7860 default_server;

    server_name _;

    root /usr/share/nginx/html;
    index index.html index.htm;

    # Serve static files directly.
    location / {
        try_files $uri $uri/ /index.html;
    }

    location /custom-auth/ {
        # Serve backend from port 
        rewrite /static/(.*) /$1 break;
        proxy_pass http://localhost:8000;
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_cache_bypass $http_upgrade;
        proxy_read_timeout 86400;
        proxy_redirect off;
    }
}