If you set up a Gateway with a wildcard hostname the same as the wildcard app domain, and then delete that Gateway, you delete the wildcard record for the cluster.

4.16

Every time

    1. Run the TestGatewayAPI e2e test to completion, or
    2. Create a gatewayclass
    3. Create a gateway with hostname the same as the ingress controller apps domain (*.apps.xxx.yyy)
    4. Delete the gateway
    

  When  you delete the gateway it deletes the upstream DNS record for the ingress controller.  Console, OAuth, and Canary routes will fail.

    No one should be allowed to create a gateway with the same hostname as the ingress controller apps domain.