apiVersion: gateway.networking.k8s.io/v1beta1
kind: Gateway
metadata:
  name: tlsconfig-tcp
spec:
  gatewayClassName: acme-lb
  listeners:
  - name: example
    protocol: TCP
    port: 443
    tls:
      certificateRefs:
      - kind: Secret
        group: ""
        name: bar-example-com-cert