gae上的nodejs websocket

我想在google app engine(gae)上部署nodejs websocket应用程序,我已经尝试了3天,但没有成功。

我一直在出错 ERR_CONNECTION_TIMED_OUT

这是我在nodejs中的app.js文件

var WebSocketServer = require('ws').Server,
    wss = new WebSocketServer({ port: 65080 }),
    CLIENTS = [];

    console.log('WS listening on port 65080');
// on new connection    
wss.on('connection', function (ws) {

    console.log('incoming connection ....');
    ws.id = uuid.v4();
    CLIENTS.push(ws);
    ws.send('{"type":"uuid","value":"' + ws.id + '"}');
});

我已成功打开防火墙端口,如下所示

这是我的app.yaml

runtime: nodejs
env: flex
api_version: 1
service: websockets

manual_scaling:
  instances: 1

network:
  forwarded_ports:
  - 65080
  session_affinity: true
  instance_tag: websocket

如有任何建议,我们将不胜感激。