IvanHunters dad5924b21 fix(computeplane): do not grant tenants the cluster admin kubeconfig (#4722)
## What this PR does

A tenant user could read the admin kubeconfig of their own ComputePlane
cluster, which the module promises never to hand out. The module deploys
the `kubernetes` app into the tenant namespace as
`computeplane-cluster`. The secrets allowlist kept the Secret out of
`tenantsecrets`, but the chart's dashboard Role still gave the tenant's
`use` subjects get/list/watch on
`computeplane-cluster-admin-kubeconfig`. So a plain `kubectl get secret`
worked.

The fix drops that one rule for the ComputePlane cluster only. The
kubernetes chart now skips it when the internal value
`withholdAdminKubeconfig` is set, and the computeplane module sets that
value inline in the cluster HelmRelease. The tenant can't reach those
values, because the module reads only `nodeGroups` and passes an
allowlisted subset of it to the pool releases. The value is kept out of
`values.yaml` and the schema, same as `clusterReleaseName` in
kubernetes-nodes.

A regular Kubernetes app keeps the rule, so the dashboard still offers
its kubeconfig. Only the v1.7.0 alphas ship the module. After this
lands, the `kubectl auth can-i` check can go back into the e2e suite in
#4713.

### Screenshots

No UI changes.

### Downstream repositories

- [x] No downstream repository is affected by this change
- [ ] [cozystack/website](https://github.com/cozystack/website) -
follow-up:
- [ ]
[cozystack/terraform-provider-cozystack](https://github.com/cozystack/terraform-provider-cozystack)
- follow-up:
- [ ]
[cozystack/ansible-cozystack](https://github.com/cozystack/ansible-cozystack)
- follow-up:
- [ ] [cozystack/ccp](https://github.com/cozystack/ccp) - follow-up:
- [ ] [cozystack/talm](https://github.com/cozystack/talm) - follow-up:
- [ ] [cozystack/cozyhr](https://github.com/cozystack/cozyhr) -
follow-up:
- [ ] [cozystack/cozy-proxy](https://github.com/cozystack/cozy-proxy) -
follow-up:
- [ ]
[cozystack/cozystack-telemetry-server](https://github.com/cozystack/cozystack-telemetry-server)
- follow-up:
- [ ]
[cozystack/external-apps-example](https://github.com/cozystack/external-apps-example)
- follow-up:
- [ ] [cozystack/examples](https://github.com/cozystack/examples) -
follow-up:
- [ ] [cozystack/community](https://github.com/cozystack/community) -
follow-up:

### Release note

```release-note
fix(computeplane): tenant users no longer get read access to the ComputePlane cluster's admin kubeconfig Secret through the kubernetes app's dashboard Role.
```


<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

* **Security**
* Computeplane dashboards no longer grant access to the cluster’s admin
kubeconfig Secret. Other dashboard resource permissions remain
available. This limits access to sensitive cluster credentials through
the dashboard while preserving the service-related permissions needed
for dashboard resources.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->
2026-10-02 18:11:49 +03:00
2025-10-08 09:43:34 +05:00
2024-02-08 12:04:32 +01:00

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