myasnikovdaniil
cece5c23b5
## What this PR does Implements the immutable-tag + rc-promotion flow from #2677. A **stable release becomes a renamed release-candidate**: the bytes shipped as `vX.Y.Z` are bit-for-bit the bytes built and e2e-tested as `vX.Y.Z-rc.N`. No tag is ever force-moved, and stable is never rebuilt — it is *promoted* by retagging the rc's existing images. Layered onto the build matrix from #2937/#2983 (this PR is **stacked on `refactor/build-matrix-2937`** and must merge after it). ## The five force-retag sites, removed | Site | Before | After | |---|---|---| | `tags.yaml` api/apps/v1alpha1 tag | `git tag -f` / `push -f` | write-once (create-if-absent, fail if it would move) | | `tags.yaml` release-X.Y.Z branch | `git branch -f` / `push -f` | compare-before-force (no-op if unchanged; staging branch only) | | `pull-requests-release.yaml` stable tag | `git tag -f` / `push -f` | write-once at the PR merge commit (force impossible by construction) | | `pull-requests-release.yaml` maintenance branch | `updateRef force:true` | fast-forward-only | | `auto-release.yaml` patch tags | delete-recreate (cron) | **workflow deleted** — stable only via explicit promote | ## Version decoupling (the enabler) The operator baked its version into the image at build time, so an rc image self-reported the rc string — blocking retag-promotion. It now reads `COZYSTACK_VERSION` from the environment (threaded via `cozystackOperator.platformVersion` → Deployment env, stamped by `make manifests`), falling back to the build-time value when unset. The same image bits can report any release name. The only runtime reader is the telemetry metric `cozy_cluster_info{cozystack_version=...}`. ## Promotion flow `promote-rc.yaml` (`workflow_dispatch`, `rc_tag=vX.Y.Z-rc.N`): 1. Validate the rc release exists and the stable tag does not. 2. `hack/promote-retag.sh` reads the rc's digest-pinned image refs from `packages/*/*/values.yaml` and `skopeo copy`s each — **by digest** — to `:vX.Y.Z` and `:latest`, verifying with `skopeo inspect`. 3. Rewrite the cosmetic `-rc.N` substring in vendored tags to the stable version (the `@sha256` wins regardless), restamp the version-stamped assets (operator manifests, cozypkg, openapi; the heavy Talos assets are copied verbatim from the rc draft), open a `release-X.Y.Z` PR. 4. Merging the PR reuses the existing release-PR e2e and `pull-requests-release.yaml` finalize to cut the **write-once** stable tag at the merge commit and publish the release. Squash is disallowed (the tag needs a real merge commit). `nightly.yaml` cuts write-once `*-nightly.<date>` tags (gated by `NIGHTLY_ENABLED`); `retention.yaml` keeps the newest 14 per line (dry-run by default). ## Validation **Local end-to-end — the core claim is proven, not asserted.** The whole design rests on "copy-by-digest to a new tag preserves the digest, so stable == the e2e-tested rc, bit-for-bit." This was exercised against a real registry (`ttl.sh`) with real `skopeo`: - Pushed a multi-arch image under a `:v1.4.0-rc.2` tag, built a temp tree exercising all three `values.yaml` digest shapes (single `image:` string, split `repository`/`tag`/`digest` map, and the `platformSourceRef` OCI artifact), then ran the actual `hack/promote-retag.sh v1.4.0`. - **Result: `:v1.4.0-rc.2`, `:v1.4.0`, and `:latest` all resolve to the identical digest** (`sha256:fd8d9aa6…`), across all 17 platform manifests. The script's own `skopeo inspect` post-check passed, and an independent re-inspection confirmed it. Local validation caught (and this PR fixes) two bugs that only surface against a real registry — never in static lint: 1. `skopeo copy --multi-arch all --all` — mutually exclusive flags, fatal error; every retag would have failed on CI. Now `--multi-arch all`. 2. The same digest was retagged twice when an image appeared in two value shapes; the ref set is now deduped on the canonical `repo@digest`. **Other local checks:** `go test ./pkg/version` + `go build`/`vet`; `helm template` renders `COZYSTACK_VERSION` in all 3 operator variants (omitted when unset); `make manifests` stamps the version into the install assets; `shellcheck` clean on `promote-retag.sh`; `actionlint` clean and `act -l` resolves the job graph on all workflows; the rc-tag parser and nightly version-math unit-tested (accept/reject + minor-vs-patch bumps). **Still CI-only (cannot be exercised offline):** the full workflow runtime — github-script API calls, OCIR auth, the rc-release / staging-branch preconditions, the nightly `base_ref` push mechanics, and self-hosted runners. The *logic* inside the steps is unit-tested; the *orchestration* is not. Treat it as unproven until the workflows run. ## Out of scope / required follow-up (needs repo admin — not doable from a PR) - Tag-protection rules: `v*` and `api/apps/v1alpha1/*` create-only by the CI app, no delete/update; "limit branches/tags updated in a single push" = 1. - Enable `NIGHTLY_ENABLED` (and `RETENTION_APPLY` when ready) repo variables. - Registry-side pruning of `*-nightly.*` image tags (no OCIR delete parity yet — tracked TODO in `retention.yaml`). ## Release note ```release-note NONE ``` <!-- This is an auto-generated comment: release notes by coderabbit.ai --> ## Summary by CodeRabbit * **New Features** * Added nightly publishing (mirror-by-digest, disk build, e2e validation) and nightly retention pruning. * Added RC-to-stable promotion via digest retagging (no rebuild). * Operator/installer and console now expose version/platform metadata, including runtime override via `COZYSTACK_VERSION`. * **Bug Fixes** * Enforced write-once tag behavior and fast-forward-only maintenance updates across release workflows. * Made nightly mirroring/selection and retention pruning more selective and safer. * **Tests** * Added Bats coverage for nightly mirroring and RC retagging, plus new Helm/unit checks. * **Documentation** * Updated the release model to center RC promotion and tag immutability. <!-- end of auto-generated comment: release notes by coderabbit.ai -->
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.
Use Cozystack to build your own cloud or provide a cost-effective development environment.
Use-Cases
-
Using Cozystack to build a public cloud
You can use Cozystack as a backend for a public cloud -
Using Cozystack to build a private cloud
You can use Cozystack as a platform to build a private cloud powered by Infrastructure-as-Code approach -
Using Cozystack as a Kubernetes distribution
You can use Cozystack as a Kubernetes distribution for Bare Metal
Documentation
The documentation is located on the cozystack.io website.
Read the Getting Started section for a quick start.
If you encounter any difficulties, start with the troubleshooting guide and work your way through the process that we've outlined.
Versioning
Versioning adheres to the Semantic Versioning principles.
A full list of the available releases is available in the GitHub repository's Release section.
Contributions
Contributions are highly appreciated and very welcomed!
In case of bugs, please check if the issue has already been opened by checking the GitHub Issues section. If it isn't, you can open a new one. A detailed report will help us replicate it, assess it, and work on a fix.
You can express your intention to on the fix on your own. Commits are used to generate the changelog, and their author will be referenced in it.
If you have a concrete feature request, open an issue. For a cross-cutting or architectural change, open a design proposal in the community repo. For questions or early ideas, use GitHub Discussions. See CONTRIBUTING.md for the full routing.
Community
You are welcome to join our Telegram group and come to our weekly community meetings. Add them to your Google Calendar or iCal for convenience.
License
Cozystack is licensed under Apache 2.0.
The code is provided as-is with no warranties.
Commercial Support
A list of companies providing commercial support for this project can be found on official site.