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## What this PR does Fixes a regression where **single-replica MariaDB can no longer be created**. [PR #2279](https://github.com/cozystack/cozystack/pull/2279) made `replication.enabled: true` unconditional in the MariaDB CR so the operator would always create `<release>-primary` / `<release>-secondary` Services (expected by the dashboard RBAC and the ApplicationDefinition). But the vendored mariadb-operator's validating webhook (`vmariadb-v1alpha1.kb.io`) **rejects `replication.enabled: true` when `spec.replicas == 1`** — replication needs a primary + at least one replica. As a result, single-replica installs never became Ready (the HelmRelease failed at admission). The webhook rule lives in the operator's Go code (not in the vendored CRD — there is no CEL rule tying replication to replica count), so the failing path is reproduced by an e2e test rather than a schema assertion. ### Fix — re-guard replication, teach consumers about the bare service The operator provisions a bare `<release>` Service in **both** topologies; `-primary`/`-secondary` exist **only** when replication is on (`replicas>1`). Instead of forcing replication for everyone, this PR lets replication track the replica count and makes the service-name consumers handle the single-replica bare service: - **`mariadb.yaml`** — gate `replication` on `replicas>1`; restore single-replica external access via `service.type: LoadBalancer`, and keep `primaryService: LoadBalancer` for `replicas>1` only. (Effectively reverts #2279's two hunks.) - **`backup-cronjob.yaml`** — single-replica dumps target the bare service (no `-secondary` exists without replication); `replicas>1` still offloads to `-secondary`. - **`dashboard-resourcemap.yaml`** — always grant RBAC on the bare service, plus `-primary`/`-secondary` when `replicas>1`, matching what the ApplicationDefinition lists. - **`mariadb-rd`** — list the bare service in `services.include` so single-replica installs are visible in the dashboard. - **`hack/e2e-apps/mariadb.bats`** — new `Create single-replica MariaDB` test that reproduces the webhook rejection and guards against regression. Verified: `helm template` at `replicas=1`/`2` renders the intended CR/RBAC/backup host; `helm unittest` passes; `update-crd.sh` keeps the RD stable; `select-e2e.sh` maps the change to the mariadb suite. ### Release note ```release-note fix(mariadb): single-replica instances can be created again — replication is now enabled only for replicas>1 (matching the operator webhook), while the dashboard, RBAC, and backups correctly target the bare service for single-replica setups ``` <!-- This is an auto-generated comment: release notes by coderabbit.ai --> ## Summary by CodeRabbit * **New Features** * Added an end-to-end test covering MariaDB deployments with a single replica, including validation of the main service, endpoints, StatefulSet replica count, and metrics components. * **Bug Fixes** * Updated MariaDB chart behavior to correctly handle single-replica vs multi-replica configurations for external access, replication settings, and backup host selection. * Refined dashboard RBAC and secret inclusion so access applies to the main MariaDB service in addition to replica-specific services. <!-- end of auto-generated comment: release notes by coderabbit.ai -->
How to test packages local
cd packages/core/installer
make image-cozystack REGISTRY=YOUR_CUSTOM_REGISTRY
make apply
kubectl delete po -l app=source-controller -n cozy-fluxcd