test-app.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: aspnetapp
spec:
  replicas: 2
  selector:
    matchLabels:
      app: aspnetapp
  template:
    metadata:
      labels:
        app: aspnetapp
    spec:
      containers:
      - image: "mcr.microsoft.com/dotnet/samples:aspnetapp"
        name: aspnetapp-image
        ports:
        - containerPort: 8080
          protocol: TCP

---

apiVersion: v1
kind: Service
metadata:
  name: aspnetapp
spec:
  selector:
    app: aspnetapp
  ports:
  - protocol: TCP
    port: 80
    targetPort: 8080

---

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: aspnetapp-private
  annotations:
    appgw.ingress.kubernetes.io/use-private-ip: "true"
  #   kubernetes.io/ingress.class: azure/application-gateway
  
spec:
  ingressClassName: azure-application-gateway
  rules:
  - http:
      paths:
      - path: /
        backend:
          service:
            name: aspnetapp
            port:
              number: 80
        pathType: Exact

# ---

# apiVersion: networking.k8s.io/v1
# kind: Ingress
# metadata:
#   name: aspnetapp-public
#   annotations:
#     appgw.ingress.kubernetes.io/use-private-ip: "false"
#   #   kubernetes.io/ingress.class: azure/application-gateway
  
# spec:
#   ingressClassName: azure-application-gateway
#   rules:
#   - http:
#       paths:
#       - path: /
#         backend:
#           service:
#             name: aspnetapp
#             port:
#               number: 80
#         pathType: Exact