example-deployment.yaml

apiVersion: v1
kind: Namespace
metadata:
  name: dev
---
apiVersion: apps/v1beta2
kind: Deployment
metadata:
  name: example
  namespace: dev
spec:
  selector:
    matchLabels:
      app: example
  replicas: 2
  template:
    metadata:
      labels:
        app: example
    spec:
      containers:
        - name: nginx
          image: stenote/nginx-hostname:latest
---
apiVersion: v1
kind: Service
metadata:
  name: example
  namespace: dev
spec:
  selector:
    app: example
  ports:
    - protocol: TCP
      port: 80
      name: http
---
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: example-prod-ingress
  namespace: dev
  annotations:
    kubernetes.io/ingress.class: nginx
    certmanager.k8s.io/cluster-issuer: letsencrypt-prod
spec:
  tls:
    - secretName: letsencrypt-prod
      hosts:
        - test.example.com
  rules:
    - host: test.example.com
      http:
        paths:
          - path: /
            backend:
              serviceName: example
              servicePort: 80