kubernetes-yaml/learn/learn-kubernetes-master/kiamol/ch13/lab/logging/elasticsearch-service.yml

apiVersion: v1
kind: Service
metadata:
  name: elasticsearch
  namespace: kiamol-ch13-lab-logging
spec:
  selector:    
    app: elasticsearch
  ports:
  - name: elasticsearch
    port: 9200
    targetPort: 9200
  type: ClusterIP