right-tree/nginx.conf

events {
  worker_connections 512;
}

http {
  server {
    listen 80;
    include /etc/nginx/mime.types;

    location / {
      proxy_pass http://frontend: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;
    }

    location /staticfiles {
      root /etc/nginx/html/;
    }

    location ~ ^/(api|admin) {
      proxy_pass http://backend:8000;
      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;
    }
  }
}