fix(cluster-operator): correct auto-detection of KUBERNETES_SERVICE_DNS_DOMAIN (#5444)
fix(cluster-operator): correct auto-detection of KUBERNETES_SERVICE_DNS_DOMAIN (#5444)

The auto-detection script fails incorrectly when a match is not found and instead of defaulting to the correct `cluster.local` if it doesn't find a cluster domain name, it actually uses all the entries from `getent hosts kubernetes.default`

Signed-off-by: Moustafa Baiou <9f2c2d839fe36f2e832d831520633140614c9677@ditto.live>
ppatierno/kaas,scholzj/barnabas,ppatierno/kaas,scholzj/barnabas