10-hello-v1-v2-deployment-svc.yaml

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

---

apiVersion: apps/v1
kind: Deployment
metadata:
  name: hello-v2
spec:
  replicas: 3
  selector:
    matchLabels:
      role: hello-v2
  template:
    metadata:
      labels:
        role: hello-v2
    spec:
      containers:
      - name: hello-v2
        image: gcr.io/google-samples/hello-app:2.0
        ports:
        - containerPort: 8080

---
apiVersion: v1
kind: Service
metadata:
  name: hello-v1
spec:
  ports:
  - port: 8080
    targetPort: 8080
  selector:
    role: hello-v1

---
apiVersion: v1
kind: Service
metadata:
  name: hello-v2
spec:
  ports:
  - port: 8080
    targetPort: 8080
  selector:
    role: hello-v2