Si el contenido del fichero redis-leader-service.yaml es el siguiente:

# SOURCE: https://cloud.google.com/kubernetes-engine/docs/tutorials/guestbook
apiVersion: v1
kind: Service
metadata:
  name: redis-leader
  labels:
    app: redis
    role: leader
    tier: backend
spec:
  type: NodePort
  ports:
  - port: 16379
    nodePort: 31379
    targetPort: 6379
  selector:
    app: redis
    role: leader
    tier: backend