bind-internal: add ceph.unkin.net authoritative zone

The ceph/halb host (ausyd1nxvm2069) publishes dashboard.ceph.unkin.net via
nsupdate to a dedicated 'zone ceph.unkin.net.', which bind-authoritative did
not serve (NOTZONE). Adds it as a primary dynamicUpdate zone alongside
unkin.net/main.unkin.net so the record has a home once the host-side
dns-update script is fixed.

apps/base/bind-internal/authoritative/zones.yaml

@@ -31,6 +31,22 @@ spec:
   dynamicUpdate: true
   updateKeyRef: client-update
 ---
+# ceph.unkin.net: the ceph host (ausyd1nxvm2069/halb) publishes
+# dashboard.ceph.unkin.net via nsupdate; puppet targets a dedicated
+# `zone ceph.unkin.net.`, so it must exist here or the update gets NOTZONE.
+apiVersion: bind.unkin.net/v1alpha1
+kind: BindZone
+metadata:
+  name: ceph-unkin-net
+  namespace: bind-internal
+spec:
+  clusterRef: bind-authoritative
+  zoneName: ceph.unkin.net
+  type: primary
+  defaultTTL: 600
+  dynamicUpdate: true
+  updateKeyRef: client-update
+---
 apiVersion: bind.unkin.net/v1alpha1
 kind: BindZone
 metadata: