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## What this PR does The Altinity (ClickHouse) and RabbitMQ backup strategy Pods ran `platform-migrations`: a 349 MB image carrying `kubectl`, `helm`, `git`, `cozyhr` and `etcd-migrate`, whose `ENTRYPOINT` is `run-migrations.sh`. Both pins were stamped from `packages/core/platform/Makefile`, so any migration change re-digested the backup clients too, and only the `command:` override kept the Pods from running platform migrations (#3420). - New `packages/system/backupstrategy-controller/images/backup-http-client/`: `alpine:3.24` (digest-pinned, the same base the tree already uses) + `curl` + `jq` + `ca-certificates`, `USER 65532:65532`, no `ENTRYPOINT`. Everything is installed at build time, so the Pods still never run `apk add` and keep working air-gapped. - New `image-backup-http-client` target in the package's own `Makefile`, chained after `image-redis-backup` like the existing ones so only one `yq -i` writes `values.yaml` at a time. It stamps `chBackupClientImage` and `rabbitmqBackupClientImage` with the same ref. - Removed the cross-package stamps from `packages/core/platform/Makefile`, the WORKAROUND/TODO comments in the chart and the RabbitMQ example, and the stale "live violation" line in `docs/agents/image-refs.md`. - `hack/image-pin-consistency.bats`: dropped the `platform-migrations`-specific test, whose subject no longer exists. The general check (no repository pinned at more than one digest, computed from `hack/promote-retag.sh --dry-run`) still covers the two keys sharing one image. **Why one image for both strategies rather than `ch-backup-client` as the issue named it.** The RabbitMQ strategy had the same reuse and the same cross-package stamp; leaving it would have kept the stamp alive. Its script needs `curl --aws-sigv4` + `ca-certificates`, a subset of the ClickHouse one, so one image serves both. The two values keys stay separate so either strategy can move to its own image later. **Initial pin.** The image does not exist in ghcr until CI builds it, so both keys are committed as `backup-http-client:v1.6.0` without a digest, the same way `redis-backup` was introduced. PR CI rebuilds touched packages and overlays the fresh refs for e2e; release preparation's `make image` stamps tag+digest. Image size: 6.9 MB vs 349 MB. Verified locally: - `docker buildx build` for `linux/amd64,linux/arm64`; in the image as uid 65532: curl 8.22 with `--aws-sigv4`, jq 1.8.2, `date`, `seq`, writes to `/tmp` (the RabbitMQ script's only write), TLS verification against the bundled CA store. - `helm unittest` (23/23), `helm template` renders both strategies with `backup-http-client` and no `platform-migrations` reference. - `hack/cozytest.sh hack/image-pin-consistency.bats` and `hack/build-matrix_test.bats` pass. Not yet run end to end on a cluster; the e2e backup round-trips will exercise it. Fixes #3420 ### Screenshots N/A — no UI changes. ### Downstream repositories Walked the trigger map against the diff: it touches `packages/system/backupstrategy-controller` (new image, Makefile target, values comments/pins, template comments), `packages/core/platform/Makefile` (stamp removal only, no `values.yaml` key change), `hack/image-pin-consistency.bats`, `docs/agents/image-refs.md` and a comment in `examples/backups/rabbitmq`. No app package, schema, CRD, variant, asset, platform values key or `hack/package.mk` change. The website does not list first-party image repositories (searched for `platform-migrations` and `redis-backup`), so no mirror list needs the new one. - [x] No downstream repository is affected by this change - [ ] [cozystack/website](https://github.com/cozystack/website) - follow-up: - [ ] [cozystack/terraform-provider-cozystack](https://github.com/cozystack/terraform-provider-cozystack) - follow-up: - [ ] [cozystack/ansible-cozystack](https://github.com/cozystack/ansible-cozystack) - follow-up: - [ ] [cozystack/ccp](https://github.com/cozystack/ccp) - follow-up: - [ ] [cozystack/talm](https://github.com/cozystack/talm) - follow-up: - [ ] [cozystack/cozyhr](https://github.com/cozystack/cozyhr) - follow-up: - [ ] [cozystack/cozy-proxy](https://github.com/cozystack/cozy-proxy) - follow-up: - [ ] [cozystack/cozystack-telemetry-server](https://github.com/cozystack/cozystack-telemetry-server) - follow-up: - [ ] [cozystack/external-apps-example](https://github.com/cozystack/external-apps-example) - follow-up: - [ ] [cozystack/examples](https://github.com/cozystack/examples) - follow-up: - [ ] [cozystack/community](https://github.com/cozystack/community) - follow-up: ### Release note <!-- Write a release note: - Explain what has changed internally and for users. - Start with the same `type(scope):` prefix as in the PR title - Follow the guidelines at https://github.com/kubernetes/community/blob/master/contributors/guide/release-notes.md. --> ```release-note fix(backupstrategy-controller): the ClickHouse (Altinity) and RabbitMQ backup strategy Pods now run a dedicated `backup-http-client` image (alpine + curl + jq + ca-certificates, non-root, ~7 MB) instead of the 349 MB `platform-migrations` image. Air-gapped mirrors need the new `ghcr.io/cozystack/cozystack/backup-http-client` repository. ``` <!-- This is an auto-generated comment: release notes by coderabbit.ai --> ## Summary by CodeRabbit * **Improvements** * Altinity and RabbitMQ backups now use a dedicated backup HTTP client image, configured separately from the platform migrations image. * The client image includes the tools required for backup operations and runs with a non-root identity. * Both backup configurations receive the same digest-pinned image reference when the image is built. <!-- end of auto-generated comment: release notes by coderabbit.ai -->