k8s service

apiVersion: v1
kind: Service
metadata:
  name: rest-api-service
spec:
  type: LoadBalancer
  ports:
    - port: 80
      targetPort: 80
  selector:
    server: rest-api-server

tag가 server: rest-api-server인 pod들을 외부 80port와 loadBalancer 형태로 열어준다.