app.yaml

apiVersion: extensions/v1beta1

kind: Deployment
metadata:
  name: book-store-app
  labels:
    bookstore/example: bookstore
spec:
  replicas: 1

  revisionHistoryLimit: 5

  selector:
    matchLabels:
      app: book-store-app

  template:
    metadata:

      labels:
        app: book-store-app

    spec:

      containers:

      - image: bookstore-app:v2

        imagePullPolicy: IfNotPresent
        name: book-store-app

        resources:
          requests:
            cpu: 100m
            memory: 1Gi

        env:
          - name: API_HOST
            value: api.default.svc.cluster.local

        livenessProbe:
          tcpSocket:
            port: 3000

        ports:
        - containerPort: 3000

---

#Book store App service definition.
apiVersion: v1

kind: Service
metadata:

  name: app
  labels:
   "bookstore/example": bookstore
spec:
  ports:

  - port: 3000
    protocol: TCP
  selector:

    app: book-store-app

  type: LoadBalancer