Files
tailscale/cmd/k8s-operator
Hamza KhokharandClaude Opus 5.5 f5d378471e cmd/k8s-operator: grant dnsconfigs/finalizers so the nameserver provisions on OpenShift (#21276)
* cmd/k8s-operator: grant dnsconfigs/finalizers so the nameserver provisions on OpenShift

The nameserver ServiceAccount, Deployment, Service and ConfigMap are created
with an ownerReference to the cluster-scoped DNSConfig and
blockOwnerDeletion: true. Clusters running the
OwnerReferencesPermissionEnforcement admission plugin - which OpenShift enables
by default and upstream Kubernetes does not - require the creating identity to
hold update on the owner finalizers subresource before accepting such a child.

The operator ClusterRole grants dnsconfigs and dnsconfigs/status but no rule on
any finalizers subresource, so every nameserver reconcile is rejected:

  serviceaccounts "nameserver" is forbidden: cannot set blockOwnerDeletion if
  an ownerReference refers to a resource you cannot set finalizers on

It retries forever, the DNSConfig never gets a status, and dns-records-reconciler
waits indefinitely. Granting the rule lets the reconcile succeed on the next
attempt; it is inert where the admission plugin is not enabled.

Static manifest regenerated with ./tool/go run ./cmd/k8s-operator/generate staticmanifests

Fixes #21275

Signed-off-by: Hamza Khokhar <hamza.khokhar660@gmail.com>

* cmd/k8s-operator: grant proxygroups, recorders and services finalizers

Extend the OwnerReferencesPermissionEnforcement fix to the other owners whose
children are created with blockOwnerDeletion: true: ProxyGroup and Recorder
(tailscale.com) and Service (core). Without update on their finalizers
subresource, creates of the owned resources are rejected on clusters that
enable the admission plugin, such as OpenShift.

Static manifest regenerated with ./tool/go run ./cmd/k8s-operator/generate staticmanifests

Updates #21275

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Hamza Khokhar <hamza.khokhar660@gmail.com>

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Signed-off-by: Hamza Khokhar <hamza.khokhar660@gmail.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-03 09:19:45 +00:00
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