在Google云中部署nginx服务时出现连接拒绝错误

我正在谷歌云中使用以下部署文件部署nginx映像。

对于Replicationcontroller:

apiVersion: v1
kind: ReplicationController
metadata:
  name: nginx-web
  labels:
    name: nginx-web
    app: demo
spec:
  replicas: 2
  template:
    metadata:
      labels:
        name: nginx-web
    spec:
      containers:
        - name: nginx-web
          image: nginx
          ports:
            - containerPort: 5000
              name: http
              protocol: TCP

用于服务部署

apiVersion: v1
kind: Service
metadata:
  name: nginx-web
  labels:
    name: nginx-web
    app: demo
spec:
  selector:
    name: nginx-web
  type: LoadBalancer
  ports:
   - port: 84
     targetPort: 5000
     protocol: TCP

但当我在84端口的external\u IP(我从loadbalancer获得)上执行curl时,我得到了连接拒绝错误。可能是什么问题?