Myasnikov Daniil b9766a30b7 fix(etcd): remove destructive post-upgrade cert-regeneration hook
The etcd chart shipped a `post-upgrade` Helm hook that `kubectl delete`d the
etcd TLS chain (`etcd-{ca,peer-ca,client,peer,server}-tls`) and then deleted
etcd pods on every chart upgrade, gated by a semver compare of an
`etcd-deployed-version` ConfigMap against `2.6.1`.

The hook was added as a one-shot migration for the chart `2.6.0 -> 2.6.1`
transition. Since commit f871fbdb ("Remove versions_map logic") all chart
versions are stamped as `0.0.0+<git-hash>`, which per semver is always
`< 2.6.1`. The gate therefore always resolves to "update certs", firing the
destructive hook on every etcd upgrade. On clusters running Kamaji-managed
tenant control planes this wipes the etcd CA, cert-manager re-issues it, and
tenant kube-apiservers hit `x509: certificate signed by unknown authority`
against `etcd.<ns>.svc:2379` until each tenant DataStore is manually
re-reconciled.

Commit 47d81f70 ("Disabled private key rotation in CA certs") already fixed
the underlying `rotationPolicy: Always` issue the migration was papering
over, so the hook has no remaining use. Remove the hook Job, its RBAC, the
version ConfigMap it read, and add a helm-unittest suite under
`packages/extra/etcd/tests/` that guards against re-introducing the hook
or the version ConfigMap.

Assisted-By: Claude <noreply@anthropic.com>
Signed-off-by: Myasnikov Daniil <myasnikovdaniil2001@gmail.com>
(cherry picked from commit c1508940bd)
(cherry picked from commit cbc1606c41)
2026-04-28 10:46:51 +00:00
2026-03-25 15:59:22 +05:00
2026-03-25 15:57:25 +05:00
2025-10-08 09:43:34 +05:00
2025-04-01 18:48:14 +02:00
2024-02-08 12:04:32 +01:00
2025-10-08 09:16:26 +05:00
2025-09-25 14:28:22 +02:00

Cozystack Cozystack

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Cozystack

Cozystack is a free PaaS platform and framework for building clouds.

Cozystack is a CNCF Sandbox Level Project that was originally built and sponsored by Ænix.

With Cozystack, you can transform a bunch of servers into an intelligent system with a simple REST API for spawning Kubernetes clusters, Database-as-a-Service, virtual machines, load balancers, HTTP caching services, and other services with ease.

Use Cozystack to build your own cloud or provide a cost-effective development environment.

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