Another custom port use case is that of multiple ports. Many applications expose multiple ports, such as HTTP on port 80 and port 8888 for web servers. The following example shows our app responding on both ports. Once again, we'll also need to add a firewall rule for this port, as we did for the list nodejs-service-nodeport.yaml previously. Save the listing as nodejs-multi-controller.yaml and nodejs-multi-service.yaml:

apiVersion: v1 
kind: ReplicationController 
metadata: 
  name: node-js-multi 
  labels: 
    name: node-js-multi 
spec: 
  replicas: 3 
  selector: 
    name: node-js-multi 
  template: 
    metadata: 
      labels: 
        name: node-js-multi 
    spec:

      containers: 
      - name: node-js-multi 
        image: jonbaier/node-express-multi:latest 
        ports: 
        - containerPort: 80 
        - containerPort: 8888

apiVersion: v1 
kind: Service 
metadata: 
  name: node-js-multi 
  labels: 
    name: node-js-multi 
spec: 
  type: LoadBalancer 
  ports: 
  - name: http 
    protocol: TCP 
    port: 80 
  - name: fake-admin-http 
    protocol: TCP 
    port: 8888 
  selector: 
    name: node-js-multi