resolve external dns to internal service

core-dns-patch.yml

apiVersion: v1
data:
  Corefile: |
    .:53 {
        errors
        health
        rewrite stop {
          name regex ids\.test2\.fundacion\.io sonaticket-ids.test2-fundacion-io.svc.cluster.local
          answer name sonaticket-ids\.test2-fundacion-io\.svc\.cluster\.local ids.test2\.fundacion\.io
        }
        kubernetes cluster.local in-addr.arpa ip6.arpa {
           pods insecure
           upstream
           fallthrough in-addr.arpa ip6.arpa
           ttl 30
        }
        prometheus :9153
        forward . 8.8.8.8:53
        cache 30
        loop
        reload
        loadbalance
    }
    
kind: ConfigMap
metadata:
  name: coredns
  namespace: kube-system