## What
Implements the `strategy.backups.cozystack.io/Job` backup strategy — a
generic, application-agnostic driver that runs a user-supplied
Kubernetes Job to create (and restore) a backup.
## Background
This PR began as a draft written against an earlier shape of the backups
API. The API has since moved to a `BackupClass`-based dispatch model,
which broke the original draft on three counts:
- `BackupJob.Spec.StrategyRef` and `BackupJob.Spec.StorageRef` were
removed; the strategy and its parameters are now resolved from a
`BackupClass` into a `ResolvedBackupConfig`.
- Strategy handling moved from standalone per-strategy reconcilers to a
dispatch model: `BackupJobReconciler.Reconcile` /
`RestoreJobReconciler.Reconcile` resolve the strategy and switch into
per-strategy methods (`reconcileVelero`, `reconcileCNPG`,
`reconcileAltinity`, …).
- The draft's template context (`.Values`, `.Storage`) diverged from the
convention the other strategies adopted, and its `.Storage` half
targeted a storage API that does not exist.
## What changed
- **`reconcileJob` / `reconcileJobRestore`**
(`internal/backupcontroller/jobstrategy_controller.go`): replaces the
standalone `BackupJobStrategyReconciler` with the two dispatch methods
the `BackupJob` / `RestoreJob` reconcilers call. The Job strategy is the
generic counterpart of the Altinity driver — same lifecycle (render
`PodTemplateSpec` → run a one-shot `batch/v1.Job` → poll its terminal
condition → emit a `Backup`), minus the ClickHouse-specific
`applicationRef` gate, so it runs for any application. Shared package
helpers (`renderJobTemplate`, `jobConditionState`,
`getApplicationUnstructured`, status helpers, deterministic Job naming,
controller refs) are reused.
- **Template context** follows the in-tree convention used by the other
drivers: `.Application` (live application object), `.Release.Name` /
`.Release.Namespace`, `.Mode` (`backup` / `restore`), `.Parameters`
(resolved `BackupClass` parameters), and `.Backup` (restore runs only).
Strategy parameters round-trip through the `Backup`'s `driverMetadata`
so a later restore re-renders against the same values.
- **Restore** re-renders the same template with `.Mode == "restore"`.
Cross-namespace restore is unsupported (the RestoreJob target reference
is namespace-local), matching the Altinity driver.
- **`JobSpec.Template` doc + regenerated CRD**: the field doc previously
advertised `.Values`; it now documents the real context, and
`strategy.backups.cozystack.io_jobs.yaml` is regenerated to match (the
change is limited to that field's description).
- **Tests** (`jobstrategy_controller_test.go`): backup-Job creation /
args / labels / status, completion → `Backup` artifact with parameter
round-trip, Job-failure surfacing, missing-strategy terminal failure,
restore into the target namespace, restore completion, and the
parameter-prefix unit. A deliberately generic application kind pins that
the driver never gates on `applicationRef.kind`.
No RBAC changes are required: the controller already holds
`strategy.backups.cozystack.io/*`, `batch/jobs`, `apps.cozystack.io/*`,
and `backups` permissions.
## Notes for reviewers
- Backup and restore share one template, so a strategy author's
`PodTemplateSpec` must branch on `.Mode` to do anything
restore-specific. This matches the existing convention; worth confirming
it's the intended contract for the Job strategy's docs/examples.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Implemented full backup/restore job strategy with deterministic Job
creation, idempotent execution, and status/condition updates; added demo
example scripts and reusable shell helpers for a NATS JetStream
backup/restore workflow.
* **Documentation**
* Clarified Job template rendering context and listed supported template
variables; added README and step-by-step scenario docs for the NATS
example.
* **Tests**
* Added comprehensive unit tests covering job creation,
completion/failure handling, parameter extraction, and unmappable-target
failure cases.
<!-- review_stack_entry_start -->
[](https://app.coderabbit.ai/change-stack/cozystack/cozystack/pull/1721?utm_source=github_walkthrough&utm_medium=github&utm_campaign=change_stack)
<!-- review_stack_entry_end -->
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
Complete the strategy.backups.cozystack.io/Job driver as the generic,
app-agnostic counterpart to the Altinity driver: render the strategy
PodTemplateSpec, run it as a one-shot batch/v1.Job, poll its terminal
condition, and emit a Backup. Wire it into the existing BackupClass
dispatch via reconcileJob/reconcileJobRestore rather than a standalone
reconciler, matching the post-BackupClass backups API (the old draft
read BackupJob.Spec.StrategyRef/StorageRef, which no longer exist).
Template context follows the in-tree convention (.Application, .Release,
.Mode, .Parameters, .Backup); the JobSpec.Template doc and regenerated
CRD are updated to match. Restore re-renders the same template with
.Mode=restore; cross-namespace restore is unsupported, mirroring
Altinity.
Signed-off-by: Timofei Larkin <lllamnyp@gmail.com>
## What this PR does
This patch narrows the scope of the Velero backup strategy controller to
simply template Velero Backups according to the application being backed
up and the template in the strategy. Creating storage locations is now
out of scope.
### Release note
```release-note
[backups] Implement templating for Velero backups and remove creation of
backup storage locations and volume snapshot locations.
```
Signed-off-by: Timofei Larkin <lllamnyp@gmail.com>
## What this PR does
This patch adds boilerplate code for a Velero strategy for the backups
API. Implementation can be added into the Reconcile function in a
subsequent PR.
###
```release-note
[backups] Add the boilerplate for a new Velero strategy for backups.
```
Signed-off-by: Timofei Larkin <lllamnyp@gmail.com>
## What this PR does
This PR introduces a bare-bones Job backup strategy API type and stubs
out all the boilerplate for a new controller that will handle this
strategy, as well as any others in the `strategy.backups.cozystack.io`
API group.
### Release note
```release-note
[backups] Create stubs and minimal implmentations for controllers for
the strategy.backups.cozystack.io API group.
```
Signed-off-by: Timofei Larkin <lllamnyp@gmail.com>
## What this PR does
This patch adds the boilerplate for the `strategy.backups.cozystack.io`
API group that will contain reference backup/restore strategy
implementations that will live in Cozystack core.
### Release note
```release-note
[backups] Scaffold the `strategy.backups.cozystack.io` API group to
provide a well-defined point for adding reference strategy
implementations.
```
Signed-off-by: Timofei Larkin <lllamnyp@gmail.com>
Andrey Kolkov
