ingress-gw-ssl.yaml

apiVersion: networking.istio.io/v1alpha3
kind: Gateway
metadata:
  name: ingressgateway
spec:
  selector:
    istio: ingressgateway
  servers:
  - hosts:
    - dns1
    - dns2
    - dns3
    port:
      name: http
      number: 80
      protocol: HTTP
  - hosts:
    - dns1
    - dns2
    - dns3
    port:
      name: https
      number: 443
      protocol: HTTPS
    tls:
      credentialName: ssl-credential
      mode: SIMPLE