7-app.yml

apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
      app: hollowapp
  name: hollowapp
spec:
  replicas: 1
  selector:
    matchLabels:
      app: hollowapp
  strategy:
    type: Recreate
  template:
    metadata:
      labels:
        app: hollowapp
    spec:
      containers:
      - name: hollowapp
        image: theithollow/hollowapp-blog:allin1-v2
        imagePullPolicy: Always
        ports:
        - containerPort: 5000
        env:
        - name: SECRET_KEY
          value: "my-secret-key"
---
apiVersion: v1
kind: Service
metadata:
  name: hollowapp
  labels:
    app: hollowapp
spec:
  type: ClusterIP
  ports:
  - port: 5000
    protocol: TCP
    targetPort: 5000
  selector:
    app: hollowapp
---
apiVersion: networking.k8s.io/v1beta1
kind: Ingress #ingress resource
metadata:
  name: hollowapp
  labels:
    app: hollowapp
spec:
  rules:
  - host: hollowapp.hollow.local #only match connections to hollowapp.hollow.local. 
    http:
      paths:
      - path: / #root path
        backend:
          serviceName: hollowapp
          servicePort: 5000