dermy/nginx.conf

    server {
	    listen $SERVER_PORT;
	    server_name $SERVER_ADDRESS;

	    location / {
		    proxy_pass http://localhost:$API_PORT;
		    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;
	    }
    }