myasnikovdaniil aa8ea10392 fix(platform): migrate ACME HTTP-01 to ingressClassName API (#2436)
## What this PR does

HTTP-01 ACME issuance in Cozystack has been relying on deprecated
cert-manager fields that happen to still work, but point at a
non-existent ingress class on default installs.

**The bug:**
- `ClusterIssuer`s (`letsencrypt-prod`, `letsencrypt-stage`) hardcode
`http01.ingress.class: nginx`, but Cozystack's nginx ingress classes are
named after tenants (`tenant-root`, `tenant-*`) — there is no class
called `nginx`.
- Every ingress that needs a cert overrides this with the deprecated
annotation `acme.cert-manager.io/http01-ingress-class: <class>`.
cert-manager still honors it, which is why issuance works at all.
- Mixing the modern `ingressClassName` field with the legacy
`http01-ingress-class` annotation produces `fields ingressClassName and
class cannot be set at the same time` (cert-manager#6651), so the
migration has to be atomic.

**The fix:**
- Parameterize the `ClusterIssuer` HTTP-01 solver from
`_cluster.expose-ingress` (default `tenant-root`) using the modern
`ingressClassName` field.
- Rename the override annotation on all ingresses to the modern
`acme.cert-manager.io/http01-ingress-ingressclassname`.
- No new features, no behavior change for operators who already set
`_cluster.expose-ingress` correctly — just removes the dependency on the
deprecated API and stops pointing at a phantom class.

Touched ingresses (9 templates): keycloak, dashboard, linstor-gui,
bucket, grafana, alerta, bootbox/matchbox, seaweedfs, harbor. Plus
`seaweedfs` values.yaml default annotation and the
`cert-manager-issuers` ClusterIssuer template.

Verified renders for `http01` + `tenant-root`, `http01` + custom class,
and `dns01` (correctly omits the http01 branch).

### Release note

```release-note
fix(platform): ACME HTTP-01 challenges now use the modern `ingressClassName` API and target the tenant ingress class from `_cluster.expose-ingress` (default `tenant-root`) instead of a hardcoded `nginx` class that did not exist on most installs. Ingress templates switched from the deprecated `acme.cert-manager.io/http01-ingress-class` annotation to `acme.cert-manager.io/http01-ingress-ingressclassname`.
```


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

## Summary by CodeRabbit

## Release Notes

* **Chores**
* Updated cert-manager ACME HTTP-01 solver annotations across ingress
configurations to use the newer `ingressclassname` format for improved
compatibility with current cert-manager versions.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->
2026-04-21 18:39:28 +05:00
2026-04-21 01:42:32 +00:00
2025-10-08 09:43:34 +05:00
2025-04-01 18:48:14 +02:00
2024-02-08 12:04:32 +01:00
2026-04-16 14:30:51 +05:00
2026-03-17 02:57:52 +05:00

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