ingress-wildcard.yaml

apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: myservice-ingress
  annotations:
    kubernetes.io/ingress.class: nginx
spec:
  rules:
  - host: my.example.com
    http:
      paths:
      - backend:
          serviceName: myservice
          servicePort: 80
        path: /
  tls:
  - hosts:
    - '*.example.com'
    - my.example.com
    secretName: wildcard-example-com-tls