backend.yml

---
  apiVersion: apps/v1beta2 # apps/v1 # for versions before 1.9.0 use apps/v1beta2
  kind: Deployment
  metadata:
    name: k8sdemo-backend
  spec:
    selector:
      matchLabels:
        app: k8sdemo-backend
    replicas: 2
    template:
      metadata:
        labels:
          app: k8sdemo-backend
      spec:
        containers:
        - name: k8sdemo-backend
          image: albertom/k8sdemo_backend
          ports:
          - containerPort: 8080
          env:
            - name: K8SDEMO_BACKEND_PORT
              value: "8080"

---
  apiVersion: v1
  kind: Service
  metadata:
    name: k8sdemo-backend
    labels:
      run: k8sdemo-backend
  spec:
    type: NodePort
    ports:
    - port: 8080
      protocol: TCP
    selector:
      run: k8sdemo-backend