deploy.yaml

---
# Run built node app hello-kube with 3 replica
apiVersion: apps/v1
kind: Deployment
metadata:
  name: hello-kube-deployment
  labels:
    app: hello-kube
spec:
  replicas: 3 # 3 replica of this 'pod'
  selector:
    matchLabels: # node selection rule: if label name == 'simple-kube', then 'choose' it
      app: hello-kube
  template:
    metadata:
      labels:
        app: hello-kube
    spec:
      containers:
      - name: hello-kube
        image: hello-kube:latest # image is in local
        imagePullPolicy: IfNotPresent
        ports:
        - containerPort: 8000 # port 'inside' container

---
apiVersion: v1
kind: Service
metadata:
  name: hello-kube-service
spec:
  type: ClusterIP
  selector: 
    app: hello-kube
  ports:
  - protocol: TCP
    port: 80 # port that is 'exposed', choose 80 to see differeneces
    targetPort: 8000 # port that is targeted to (Pod's port)