yaml file for us to deploy a simple springboot app (with 3 replicas) in microk8s and nginx as a reverse proxy (ingress balancer)

app.yaml

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: demo-microk8s-ingress
  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: /$2
spec:
  tls:
  - hosts:
    - access.qbits.mx
    secretName: hello-app-tls
  rules:
  - host: access.qbits.mx
    http:
      paths:
      - path: /demo-microk8s(/|$)(.*)
        pathType: Prefix
        backend:
          service:
            name: demo-microk8s
            port:
              number: 8080
  ingressClassName: nginx
---
kind: Service
apiVersion: v1
metadata:
  name: demo-microk8s
  labels:
    app: demo-microk8s
spec:
  type: ClusterIP
  selector:
    app: demo-microk8s
  ports:
    - port: 8080
      targetPort: 8080
      name: http
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: demo-microk8s
  labels:
    app: demo-microk8s
spec:
  selector:
    matchLabels:
      octopusexport: OctopusExport
  replicas: 3
  strategy:
    type: RollingUpdate
  template:
    metadata:
      labels:
        app: demo-microk8s
        octopusexport: OctopusExport
    spec:
      containers:
        - name: demo-microk8s
          image: gustavoarellano/microk8s-demo:latest
          imagePullPolicy: Always
          ports:
            - name: http
              containerPort: 8080
              protocol: TCP