magento 2 kubernetes blog example service

service.yaml

apiVersion: v1
kind: Service
metadata:
  name: elasticsearch
  namespace: production
spec:
  externalName: es-elasticsearch-coordinating-only.default.svc.cluster.local
  ports:
  - port: 9200
    protocol: TCP
    targetPort: 9200
  sessionAffinity: None
  type: ExternalName
status:
  loadBalancer: {}