Function reconcile_cname_record 

pub async fn reconcile_cname_record(
    client: Client,
    record: CNAMERecord,
) -> Result<()>

Reconciles a CNAMERecord (canonical name alias) resource.

Finds DNSZones that have selected this record via label selectors and creates/updates the record in BIND9 primaries for those zones using dynamic DNS updates.

Errors

Returns an error if Kubernetes API operations fail or BIND9 record creation fails.