Aleksei Sviridkin 6db7260b2a feat(kubernetes)!: remove FluxCD addon (#3379)
## What this PR does

The Kubernetes app's optional `addons.fluxcd` toggle deployed a Flux
Operator + FluxInstance into tenant clusters, served by two vendored
Helm charts (`packages/system/fluxcd-operator`,
`packages/system/fluxcd`). Those charts are **AGPL-3.0** — the last AGPL
content in this Apache-2.0 repository and a governance blocker for CNCF
Incubation.

The management cluster does not depend on them: it runs classic Flux via
`internal/fluxinstall`, and migration 21 already removed the Flux
Operator from it. The addon defaulted to `enabled: false`. Rather than
maintain an AGPL payload for an unused feature, this PR removes it
entirely as a breaking change:

- Delete both system packages and their `platform` source entries.
- Remove the `addons.fluxcd` HelmReleases, values, Go types and
generated schema/README from the Kubernetes app.
- Add **migration 54**: for any tenant that had the addon enabled, the
FluxCD HelmReleases in the management cluster are **suspended, stripped
of their Flux finalizer and deleted**, so the delete does not trigger a
Helm uninstall inside the tenant cluster. The Flux release already
running inside the tenant keeps running untouched (mirrors the orphan
idiom of migration 29). It runs as a `pre-upgrade` hook, before the
addon-less Kubernetes chart reaches the tenant HelmReleases.

After the change the only `affero`/`AGPL` matches under `packages/` are
comments in `packages/system/monitoring` explaining why Grafana is not
rebuilt — no AGPL payload ships.

**Verification:** the Kubernetes app helm-unittests (181) and platform
tests (88) pass; `make generate` was run with the CI-pinned
`cozyvalues-gen v1.6.0` (schema, README, Go types, CRD);
`migrations-target-check` and the `cozystack-version-stamp` bats pass;
the `api/apps/v1alpha1` module builds.

### Downstream repositories

This removes a user-facing addon and drops the `addons.fluxcd` field
from the Kubernetes app's `values.schema.json`. Boxes are left unticked
pending follow-ups (not opened from this PR):

- **terraform-provider-cozystack** — models the Kubernetes app schema;
the removed `addons.fluxcd` field should be checked/dropped there.
- **website** — any hand-written mention of the FluxCD addon in the
tenant Kubernetes docs should be removed (the managed-app reference
regenerates from the README).

### Release note

```release-note
feat(kubernetes)!: remove the FluxCD addon (`addons.fluxcd`). It relied on AGPL-3.0 vendored charts and was disabled by default; tenant clusters that had enabled it keep their running Flux release via an automatic upgrade migration. To remove that orphaned Flux from such a tenant, uninstall its `flux-operator`/`flux-instance` Helm releases inside the tenant cluster by hand.
```


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

* **Breaking Changes**
* Removed FluxCD addon support from tenant cluster configuration,
including the Kubernetes tenant CRD schema, chart values schema,
defaults, and published “Cluster Addons” parameters.
* FluxCD-related Helm manifests are no longer rendered as part of the
Kubernetes package.
* FluxCD configuration is no longer accepted for new or updated tenant
clusters.

* **Migration**
* During upgrade, existing FluxCD Helm releases are cleaned up
automatically by suspending them, clearing finalizers, and deleting the
management-side releases.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
2026-08-20 13:39:49 +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

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