Andrey Kolkov c2539ca935 fix(platform): make etcd v1alpha2 adoption (migration 50) robust in-cluster
Migration 50 (etcd.aenix.io -> etcd-operator.cozystack.io/v1alpha2 adoption)
had two defects that blocked every in-cluster 1.5 -> 1.6 upgrade on a cluster
with an existing etcd:

1. Cert-SAN wait treated transient kubectl failures as "SAN absent".
   ensure_wildcard_sans checked/awaited the wildcard SAN with
   `kubectl get ... 2>/dev/null | grep`, so any transient GET failure (API
   discovery refresh, apiserver blip, throttling) produced an empty string
   indistinguishable from a genuine absence -> false miss, and the 120s wait
   never recovered. Replace the two ad-hoc checks with a _san_present helper
   that retries on an empty read (a real Certificate/Secret never has empty
   dnsNames/alt-names) and accepts the native wildcard from EITHER the issued
   Secret's cert-manager.io/alt-names annotation OR the Certificate
   spec.dnsNames (the source of truth for what cert-manager will issue).

2. etcd-migrate had no kubeconfig in-cluster.
   etcd-migrate only reads a kubeconfig file (-k/--kubeconfig, default
   /root/.kube/config) and, unlike kubectl, does not fall back to the mounted
   in-cluster ServiceAccount. The hook Job set no KUBECONFIG and passed no
   --kubeconfig, so both the dry-run and --apply aborted with
   "error building kubeconfig: stat /root/.kube/config: no such file".
   Synthesize an in-cluster kubeconfig from the mounted ServiceAccount and pass
   --kubeconfig to both etcd-migrate invocations.

Verified end-to-end on a 1.5.2 -> 1.6.0-rc.1 upgrade: the adoption now
completes in-place (pods never restarted, data intact) and the cluster reaches
readyMembers=3 / Available=True.

Refs: #3243, #3255

Signed-off-by: Andrey Kolkov <androndo@gmail.com>
2026-07-15 19:11:35 +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

Cozystack Cozystack

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Cozystack

Cozystack is a free 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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The documentation is located on the cozystack.io website.

Read the Getting Started section for a quick start.

If you encounter any difficulties, start with the troubleshooting guide and work your way through the process that we've outlined.

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Versioning adheres to the Semantic Versioning principles.
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Contributions are highly appreciated and very welcomed!

In case of bugs, please check if the issue has already been opened by checking the GitHub Issues section. If it isn't, you can open a new one. A detailed report will help us replicate it, assess it, and work on a fix.

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