istio-gateway-with-mtls.yaml

apiVersion: networking.istio.io/v1alpha3
kind: Gateway
metadata:
  name: frontend-gateway
  namespace: control-plane
spec:
  selector:
    istio: ingressgateway # use istio default controller
  servers:
  - port:
      number: 443
      name: https
      protocol: HTTPS
    tls:
      mode: MUTUAL # For TLS only use SIMPLE, for mTLS use MUTUAL
      credentialName: frontend-credential
    hosts:
    - 'frontend.DOMAIN'