kind: Service
apiVersion: v1
metadata:
  name: simple-service
spec:
  # Expose the service on a static port on each node
  # so that we can access the service from outside the cluster
  type: NodePort

  # When the node receives a request on the static port (30123) (port2-def)
  # and dynamic port for port1-abc
  # "select pods with the label 'app' set to 'service-test-app'"
  # and forward the request to one of them
  selector:
    app: service-test-app

  ports:
    # Three types of ports for a service
    # nodePort - a static port assigned on each the node
    # port - port exposed internally in the cluster
    # targetPort - the container port to send requests to
    - nodePort:
      port: 8080
      targetPort: 80
      name: port1-abc

    - nodePort: 30123
      port: 8081
      targetPort: 81
      name: port2-def
      protocol: UDP