Part1 : LoadBalancer

demoapp.yaml

#demoapp.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
  name: demo-app
  namespace: demo
spec:
  replicas: 3
  selector:
    matchLabels:
      app: demo-app
  template:
    metadata:
      labels:
        app: demo-app
    spec:
      containers:
      - name: demo-app
        image: gcr.io/google-samples/node-hello:1.0
        ports:
        - containerPort: 8080

Part1 : LoadBalancer

#demoapp-service.yaml
apiVersion: v1
kind: Service
metadata:
  name: demo-app
spec:
  type: LoadBalancer
  selector:
    app: demo-app
  ports:
  - protocol: TCP
    port: 80
    targetPort: 8080