Consolidate BIND DNS into one bind-internal namespace

Reshapes the three DNS tiers from separate ns-* namespaces into a single
bind-internal namespace and renames the StatefulSets, and scopes the TSIG
keys to their cluster (needs the clusterRef field from operator v0.1.3).

- move the 3 clusters + zones + keys into apps/base/bind-internal:
  BindCluster names bind-authoritative / bind-resolvers / bind-externaldns
  (= StatefulSet names), LBs kept on .6/.7/.8, external-dns hostnames renamed
- add clusterRef to the transfer-key (bind-authoritative) and externaldns-key
  (bind-externaldns) TSIG keys so they no longer leak across clusters
- remove the old ns-auth / ns-resolver / ns-externaldns apps
- ApplicationSet + AppProject: replace the three ns-* entries with bind-internal
- bump bind-system operator to v0.1.3 (CRD install link + image) so the CRDs
  understand the new clusterRef field
- operator stays in bind-system (unchanged)

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

@@ -0,0 +1,204 @@
+# Authoritative zones migrated from puppet-prod
+# (profiles::dns::master::zones in hieradata/roles/infra/dns/master.yaml).
+# type primary, static (puppet dynamic:false); TTL 600 as in the puppet zone header.
+# Record data is populated by PuppetDB exported resources upstream, so it is
+# NOT in this repo — migrate it into these zones (AXFR from the current masters,
+# or DNSRecord CRs) as a follow-up. The zones start with SOA+NS only.
+---
+apiVersion: bind.unkin.net/v1alpha1
+kind: BindZone
+metadata:
+  name: unkin-net
+  namespace: bind-internal
+spec:
+  clusterRef: bind-authoritative
+  zoneName: unkin.net
+  type: primary
+  defaultTTL: 600
+---
+apiVersion: bind.unkin.net/v1alpha1
+kind: BindZone
+metadata:
+  name: main-unkin-net
+  namespace: bind-internal
+spec:
+  clusterRef: bind-authoritative
+  zoneName: main.unkin.net
+  type: primary
+  defaultTTL: 600
+---
+apiVersion: bind.unkin.net/v1alpha1
+kind: BindZone
+metadata:
+  name: 13-18-198-in-addr-arpa
+  namespace: bind-internal
+spec:
+  clusterRef: bind-authoritative
+  zoneName: 13.18.198.in-addr.arpa
+  type: primary
+  defaultTTL: 600
+---
+apiVersion: bind.unkin.net/v1alpha1
+kind: BindZone
+metadata:
+  name: 14-18-198-in-addr-arpa
+  namespace: bind-internal
+spec:
+  clusterRef: bind-authoritative
+  zoneName: 14.18.198.in-addr.arpa
+  type: primary
+  defaultTTL: 600
+---
+apiVersion: bind.unkin.net/v1alpha1
+kind: BindZone
+metadata:
+  name: 15-18-198-in-addr-arpa
+  namespace: bind-internal
+spec:
+  clusterRef: bind-authoritative
+  zoneName: 15.18.198.in-addr.arpa
+  type: primary
+  defaultTTL: 600
+---
+apiVersion: bind.unkin.net/v1alpha1
+kind: BindZone
+metadata:
+  name: 16-18-198-in-addr-arpa
+  namespace: bind-internal
+spec:
+  clusterRef: bind-authoritative
+  zoneName: 16.18.198.in-addr.arpa
+  type: primary
+  defaultTTL: 600
+---
+apiVersion: bind.unkin.net/v1alpha1
+kind: BindZone
+metadata:
+  name: 17-18-198-in-addr-arpa
+  namespace: bind-internal
+spec:
+  clusterRef: bind-authoritative
+  zoneName: 17.18.198.in-addr.arpa
+  type: primary
+  defaultTTL: 600
+---
+apiVersion: bind.unkin.net/v1alpha1
+kind: BindZone
+metadata:
+  name: 19-18-198-in-addr-arpa
+  namespace: bind-internal
+spec:
+  clusterRef: bind-authoritative
+  zoneName: 19.18.198.in-addr.arpa
+  type: primary
+  defaultTTL: 600
+---
+apiVersion: bind.unkin.net/v1alpha1
+kind: BindZone
+metadata:
+  name: 20-18-198-in-addr-arpa
+  namespace: bind-internal
+spec:
+  clusterRef: bind-authoritative
+  zoneName: 20.18.198.in-addr.arpa
+  type: primary
+  defaultTTL: 600
+---
+apiVersion: bind.unkin.net/v1alpha1
+kind: BindZone
+metadata:
+  name: 21-18-198-in-addr-arpa
+  namespace: bind-internal
+spec:
+  clusterRef: bind-authoritative
+  zoneName: 21.18.198.in-addr.arpa
+  type: primary
+  defaultTTL: 600
+---
+apiVersion: bind.unkin.net/v1alpha1
+kind: BindZone
+metadata:
+  name: 22-18-198-in-addr-arpa
+  namespace: bind-internal
+spec:
+  clusterRef: bind-authoritative
+  zoneName: 22.18.198.in-addr.arpa
+  type: primary
+  defaultTTL: 600
+---
+apiVersion: bind.unkin.net/v1alpha1
+kind: BindZone
+metadata:
+  name: 23-18-198-in-addr-arpa
+  namespace: bind-internal
+spec:
+  clusterRef: bind-authoritative
+  zoneName: 23.18.198.in-addr.arpa
+  type: primary
+  defaultTTL: 600
+---
+apiVersion: bind.unkin.net/v1alpha1
+kind: BindZone
+metadata:
+  name: 24-18-198-in-addr-arpa
+  namespace: bind-internal
+spec:
+  clusterRef: bind-authoritative
+  zoneName: 24.18.198.in-addr.arpa
+  type: primary
+  defaultTTL: 600
+---
+apiVersion: bind.unkin.net/v1alpha1
+kind: BindZone
+metadata:
+  name: 25-18-198-in-addr-arpa
+  namespace: bind-internal
+spec:
+  clusterRef: bind-authoritative
+  zoneName: 25.18.198.in-addr.arpa
+  type: primary
+  defaultTTL: 600
+---
+apiVersion: bind.unkin.net/v1alpha1
+kind: BindZone
+metadata:
+  name: 26-18-198-in-addr-arpa
+  namespace: bind-internal
+spec:
+  clusterRef: bind-authoritative
+  zoneName: 26.18.198.in-addr.arpa
+  type: primary
+  defaultTTL: 600
+---
+apiVersion: bind.unkin.net/v1alpha1
+kind: BindZone
+metadata:
+  name: 27-18-198-in-addr-arpa
+  namespace: bind-internal
+spec:
+  clusterRef: bind-authoritative
+  zoneName: 27.18.198.in-addr.arpa
+  type: primary
+  defaultTTL: 600
+---
+apiVersion: bind.unkin.net/v1alpha1
+kind: BindZone
+metadata:
+  name: 28-18-198-in-addr-arpa
+  namespace: bind-internal
+spec:
+  clusterRef: bind-authoritative
+  zoneName: 28.18.198.in-addr.arpa
+  type: primary
+  defaultTTL: 600
+---
+apiVersion: bind.unkin.net/v1alpha1
+kind: BindZone
+metadata:
+  name: 29-18-198-in-addr-arpa
+  namespace: bind-internal
+spec:
+  clusterRef: bind-authoritative
+  zoneName: 29.18.198.in-addr.arpa
+  type: primary
+  defaultTTL: 600