Gateway Setup with multiple TLS settings on same port viable?

Networking
1

Is it possible to use a Gateway deployment like this:

apiVersion: networking.istio.io/v1beta1
kind: Gateway
metadata:
  name: emea-int-mg0001-r0001-gw-tswxc2
  namespace: istio-system
spec:
  selector:
    app: emea-int-mg0001 # use istio default ingress gateway
  servers:
  - port:
      number: 443
      name: https
      protocol: HTTPS
    hosts:
    - dummy.com
    tls:
      mode: MUTUAL
      credentialName: test.test
      subjectAltNames:
      - test.daimler.com
  - port:
      number: 443
      name: https2
      protocol: HTTPS
    hosts:
    - dummy.com
    tls:
      mode: SIMPLE
      credentialName: test.test
      subjectAltNames:
      - asdf.daimler.com

Question is, can I use TLS mode SIMPLE and TLS mode MUTUAL on the same port 443 just with a differnet port-name?

We are trying to figure out how it would be possible to use a Gateway deployment with the same host/port combination but with different TLS modes. As far as I know, we cannot use the same Gateway with host/port combination twice - that is why this question came up on my head.

Atleast when I deploy it like that, I dont see any error during “istioctl analyze”.
Is the above configuration viable?

Thanks alot!

2

We solved the issue by using wildcard domains. To answer myself: You cannot use different TLS modes on the same host/port combination.