apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: demo
  namespace: demo
  annotations:
    kubernetes.io/ingress.class: nginx    
    cert-manager.io/cluster-issuer: letsencrypt
    #external-dns.alpha.kubernetes.io/target: firewall.undercloud.dev
    #external-dns.alpha.kubernetes.io/ttl: "120"


spec:
  tls:
  - hosts:
    - demo.apps.undercloud.dev
    secretName: demo-tls
  rules:
  - host: demo.apps.undercloud.dev
    http:
      paths:
      - path: /
        pathType: Prefix
        backend:
          service:
            name: nginx
            port:
              number: 80