Secondaries reject RFC2136/nsupdate writes, but the read Service round-
robins across all pods. Add an optional per-cluster write endpoint that
targets only the primary pod (ordinal 0) via the StatefulSet pod-name
label. Reads keep using the all-pods Service.
- api: BindCluster.spec.primaryService (*ClusterServiceSpec) — ClusterIP
for in-cluster writers (external-dns) or LoadBalancer for external
- reconcilePrimaryService creates <cluster>-primary selecting pod-0 when
set, deletes it when unset
- regenerate CRDs + install.yaml
Two bugs made every provisioned zone fail to load:
1. The seed zone's apex NS (ns1.<zone>) is in-zone but had no address
record, so BIND check-integrity refused to load it and rndc addzone
reverted. Add a glue A record pointing at the primary pod IP.
2. Secondaries rendered primaries/default-primaries with the primary's
DNS name, but BIND only accepts IP addresses there (it read the name
as a remote-servers list and failed config load, crash-looping the
secondary). Render the primary pod IP instead, and watch Pods so the
config re-renders when that IP appears or changes.
- bind.WriteSeedZone writes 'ns1 IN A <primaryIP>' glue
- controllers resolve primaryPodIP and pass it to the seed (requeue if
the primary has no IP yet)
- BindCluster renders PrimaryAddress from pod-0's IP and watches Pods
- render omits catalog primaries when the IP is unknown (no empty list)
Uses internetsystemsconsortium/bind9 as the default base image instead of
a self-hosted one, verified against internetsystemsconsortium/bind9:9.20
(runs as root; named/rndc/nsupdate at /usr/sbin,/usr/sbin,/usr/bin).
- project operator config at /etc/bind-operator instead of overmounting
the image's /etc/bind (keeps bind.keys / base config intact)
- reference named/rndc/nsupdate by absolute path (exec PATH may exclude
/usr/sbin)
- centralise filesystem + binary paths in internal/bind/consts.go
- default spec.image to internetsystemsconsortium/bind9:9.20
Implements a Kubernetes operator that manages fleets of BIND9 servers
declaratively, using controller-runtime (matching forgebot conventions).
- add BindCluster reconciler: StatefulSet (pod-0 primary, secondaries),
headless + client Services, rendered named.conf ConfigMap, TSIG keys
Secret and rndc control Secret; watches dependent CRs to re-render
- add BindTSIGKey reconciler that generates key material into a Secret
- add BindZone/DNSRecord reconcilers using fully-dynamic delivery
(rndc addzone + TSIG nsupdate against the primary pod)
- add BindCatalogZone reconciler so secondaries auto-provision zones
- add BindPolicy (RPZ), BindDNSSECPolicy, BindView, BindACL reconcilers
- render primary/secondary named.conf variants selected by pod ordinal
- generate CRDs, deepcopy and RBAC; add samples mapping the three Puppet
roles (authoritative/resolver/external-dns) to three BindClusters
- add Makefile, Dockerfile.operator, Woodpecker CI and kind manifests
unkinben