simple-deployment

deployment.yaml

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
    name: test
spec:
    rules:
    - host: ingress.example.org
      http:
          paths:
          - path: /
            pathType: Prefix
            backend:
              service:
                name: test
                port:
                  number: 8080
---
apiVersion: v1
kind: Service
metadata:
  name: test
  annotations:
    external-dns.alpha.kubernetes.io/hostname: ingress.example.org
spec:
  type: ClusterIP
  ports:
  - port: 8080
    targetPort: 8080
  selector:
    app: test
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: test
spec:
  selector:
    matchLabels:
      app: test
  replicas: 3
  template:
    metadata:
      labels:
        app: test
    spec:
      containers:
        - name: http
          image: quay.io/openshifttest/hello-openshift:1.2.0
          ports:
            - containerPort: 8080
              protocol: TCP