Aleksei Sviridkin c77d0b86fc [api] Reject tenant names with dashes at Create time (#2380)
## What this PR does

The aggregated API previously accepted tenant names containing hyphens
(e.g. `foo-bar`) because `ValidateApplicationName` delegated entirely to
`IsDNS1035Label`, which permits them. The tenant Helm chart's
`tenant.name` helper then rejected the release at template time — so
users saw a successful `kubectl apply` followed by a confusing
Flux/HelmRelease reconciliation error.

This PR extends `ValidateApplicationName` with a `kindName` parameter
and enforces an alphanumeric-only rule (`^[a-z][a-z0-9]*$`) for the
Tenant kind. A `TenantKind` constant centralizes the kind string, and
`REST.validateNameFormat` wraps the check symmetrically with the
existing `validateNameLength`. The tenant chart README is updated to
match the already-correct website documentation.

Test coverage includes:
- Unit tests for the validation package (format + error message
contract)
- REST wrapper and Update→Create fall-through path tests with a fake
client
- E2E BATS regression test with explicit exit-code checks and cleanup

Fixes #2375

### Release note

```release-note
[api] Tenant names containing dashes are now rejected at API level during creation, with a specific error message, instead of being silently accepted and failing later during Helm reconciliation.
```

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

* **New Features**
* Tenant names now require lowercase letters and digits only, must start
with a letter; dashes are rejected with a tenant-specific error.

* **Documentation**
* Tenant naming guidelines updated to reflect the stricter
alphanumeric-only requirement.

* **Tests**
* New unit and end-to-end tests added to verify tenant naming
enforcement and tenant-specific error messaging.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
2026-04-13 17:25:30 +03:00
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
2026-03-17 02:57:52 +05:00

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