Reactive-Resume/tools/nginx/app_nginx.conf

events {
  worker_connections 512;
}

http {
  upstream app {
    least_conn;

    # List all of your `app` instances here to balance the load between them
    server app_one:3000;
    server app_two:3000;
  }

  server {
    listen 80;

    # This instructs nginx to forward the request to the next available `app` instance
    # in case the current one throws an error or times out
    proxy_next_upstream error timeout http_500 http_503 http_429 non_idempotent;

    location / {
      proxy_pass http://app;
      
      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;

      proxy_connect_timeout 1000ms;
      proxy_send_timeout 1000ms;
      proxy_read_timeout 1000ms;
      send_timeout 1000ms;
    }
  }
}