1 min read | by Jordi Prats
If we are using external DNS to create DNS records based on the configured Ingress objects we might face a situation where we have two Ingress objects with the same hosts configured:
$ kubectl get ingress NAME CLASS HOSTS ADDRESS PORTS AGE repo-nginx <none> repo.pet2cattle.com 10.12.10.21 80 194d repo-alb <none> repo.pet2cattle.com 10.12.10.31 80, 443 115d In a situation like this, we want to be able to tell external DNS to ignore one of them.
We'll need to add the following annotation to the Ingress object that we want to ignore:
apiVersion: extensions/v1beta1 kind: Ingress metadata: annotations: dns.alpha.kubernetes.io/ingress-hostname-source: annotation-only name: repo-nginx (...) With this we are telling external DNS that we are going to specify a list of hosts using annotations but specifying none thus effectively making it to ignore that Ingress object
Posted on 05/07/2022