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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
.gemini docs: adopt Conventional Commits across contributing docs 2026-04-13 22:50:08 +03:00
.github ci(docs): promote next/ trunk on new minor/major releases (#2433) 2026-04-21 18:17:01 +05:00
api [api] Regenerate deepcopy and CRD manifests via make generate 2026-04-14 19:59:19 +05:00
cmd refactor(controller): resolve Prometheus URL from namespace labels 2026-04-17 10:58:47 +03:00
dashboards feat(monitoring): add MongoDB Grafana dashboards 2026-03-05 22:47:53 +03:00
docs docs: add changelog for v1.2.3 2026-04-21 01:42:32 +00:00
examples/backups/vmi feat(backups): restore vmi to copy in another namespace 2026-04-09 14:06:33 +04:00
hack [vm-default-images] Added new optional package 2026-04-14 19:59:19 +05:00
img Cozystack logo for dark GitHub theme (#9) 2024-02-09 11:02:41 +01:00
internal feat(platform): add resourcePreset labels 2026-04-17 15:04:25 +04:00
packages fix(platform): migrate ACME HTTP-01 to ingressClassName API (#2436) 2026-04-21 18:39:28 +05:00
pkg fix(application): address review feedback for WorkloadMonitor integration 2026-04-15 17:22:15 +03:00
tools/openapi-gen [docs] Added openapi generation tool 2026-03-25 15:57:25 +05:00
.coderabbit.yaml [ci] Enable CodeRabbit incremental reviews 2026-04-13 13:32:15 +03:00
.gitignore feat(application): add WorkloadsReady condition and Events tab 2026-04-15 17:20:45 +03:00
.pre-commit-config.yaml [cozystack-api] Implement TenantNamespace, TenantModules, TenantSecret and TenantSecretsTable resources 2025-09-24 18:27:54 +02:00
ADOPTERS.md Update ADOPTERS.md by adding new adopter 2025-12-18 16:45:06 +03:00
AGENTS.md docs: adopt Conventional Commits across contributing docs 2026-04-13 22:50:08 +03:00
CODE_OF_CONDUCT.md Update CODE_OF_CONDUCT.md 2025-10-08 09:43:34 +05:00
CONTRIBUTING.md [docs] Proofread the readme and contributing 2025-04-09 11:09:19 +03:00
CONTRIBUTOR_LADDER.md Update CONTRIBUTOR_LADDER.md 2025-10-08 09:28:27 +05:00
go.mod feat(controller): add BucketClaim support to WorkloadMonitorReconciler 2026-04-17 10:58:47 +03:00
go.sum feat(controller): add BucketClaim support to WorkloadMonitorReconciler 2026-04-17 10:58:47 +03:00
GOVERNANCE.md Create GOVERNANCE.md (#733) 2025-04-01 18:48:14 +02:00
LICENSE Preapare release v0.0.1 2024-02-08 12:04:32 +01:00
MAINTAINERS.md Add Mattia Eleuteri (@mattia-eleuteri) as Maintainer 2026-04-15 23:46:43 +05:00
Makefile docs(hack): note whitespace caveat on BATS_UNIT_FILES wildcard 2026-04-11 14:37:06 +03:00
README.md Update README.md 2026-04-16 14:30:51 +05:00
SECURITY.md docs: add SECURITY.md 2026-03-17 02:57:52 +05:00

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.

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