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fix(recipes): pin nvcre image by digest and guard opt-in wiring - #2808
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Included review availability: This review used your included allowance. Your plan provides up to 12 included reviews per hour; 9 remain after this review. 📝 WalkthroughWalkthroughNVCRE documentation now pins the Priority: ⬇️ Low Estimated code review effort: 3 (Moderate) | ~20 minutes Change: Bug fix Suggested reviewers: Merge Risk: ⚪ Minimal · up to The NVCRE image pin matches the public v0.2.0 multi-architecture image, and the chart and image are publicly retrievable. No actionable merge-blocking risk is evident. 🚥 Pre-merge checks | ✅ 4✅ Passed checks (4 passed)
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In `@pkg/recipe/nvcre_registry_test.go`:
- Line 156: Update the digest validation in the affected test to parse the
selected digest value and require a syntactically valid SHA-256 digest, rather
than merely checking for the “sha256:” substring. Preserve the existing
tag-or-digest selection behavior while rejecting malformed values such as
“sha256:not-a-digest”.
- Line 179: Update the ServiceMonitor validation around
serviceMonitor["enabled"] to require an explicitly typed boolean false: capture
the assertion result and reject the configuration when the field is missing,
non-boolean, or true, while preserving the existing error message and opt-in
requirement.
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docs/user/container-images.mdpkg/recipe/nvcre_registry_test.gorecipes/components/nvcre/values.yamlrecipes/registry.yaml
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The two failing GPU lanes ( Where it fails. Step Why. On the nvkind H100 runners the GPU driver is host-managed, so there is no aicr/pkg/bundler/deployer/helm/templates/deploy.sh.tmpl Lines 576 to 577 in aaa1ca3 So with Evidence it is #2346. The last green GPU run was on #3064 at 2026-10-03 12:45, before #2346 merged at 2026-10-04 19:25; every GPU run after that merge fails. On the same nvkind cluster pre-#2346, the gate took the other branch and passed: One note for whoever picks up the fix. #2346's stated reason for letting node-label presence take priority over the DaemonSet lookup was that an exact-name match fails open on OpenShift, where the DaemonSet is named Re-running will not help — this is deterministic gate logic rather than flake. Every other check on this PR is green. |
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Rebased onto Content is unchanged — No inline review comments existed at the old head, so nothing was outdated by the force-push. |
| ### nvcre | ||
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| - `ghcr.io/nvidia/cluster-readiness-engine/manager:v0.2.0` | ||
| - `ghcr.io/nvidia/cluster-readiness-engine/manager:v0.2.0@sha256:b7f7a71a75353f6b87eccd21cf6ae75963b82939956d5c037f0a1da944b1a4ee` |
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can we move this to the latest release? v0.2.0 is very old
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Agreed that v0.2.0 is stale — it shipped 2026-09-07 and four releases have landed since, v0.6.0 only yesterday. I looked into what the bump actually drags in, and I would rather do it as a follow-up right after this stack lands than fold it in here. Reasons, in case you disagree:
The version is baked into #3087, which is stacked on this branch. recipes/components/nvcre/workload-images.yaml carries sourceVersion: v0.2.0 and tools/nvcre-closure is keyed to it — all of it code under review in #3087. Bumping here desyncs that closure immediately and makes two already-reviewed PRs move at once.
The bump itself is cheap and low-risk, which is why it does not need to ride along. helm show values from v0.2.0 to v0.6.0 is purely additive: manager.tolerations and metrics.serviceMonitor.enabled are untouched, with new pdb and ServiceMonitor labels/interval/scrapeTimeout knobs added. The breaking changes across the four releases are nvcrectl setup --skip-phases validation, the NCCL gauge rename to _gbs (old names dual-registered for one minor), and Job field immutability at admission — none of them values AICR sets. nvcre has no ADR-021 upgrade record and is on no overlay, so neither gate binds.
What it still needs, and why it is its own change: a re-resolved manager digest, make bom-docs, a regenerated workload closure, and a look at ownsCRDs/auditedOwnsCRDs since v0.6.0 changed CRD validation.
One thing this PR does add in your favour: with 3c4745e8e, a defaultVersion bump can no longer silently keep the old controller image. The test now requires the tag's version to equal the registry's defaultVersion, so whoever does the bump is forced to move the digest with it and gets the crane command in the failure message. That was @mchmarny's MINOR on this PR, and it is what makes deferring safe rather than merely convenient.
Happy to do it in this PR instead if you would rather not split it.
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Done — v0.6.0 is in, in #3087 (0d2a9f781) rather than here. Reversing what I said earlier about deferring it, since you were right that four minors behind is too far to sit.
It had to go in #3087 rather than this PR, and the reason is a gate I added there after @mchmarny's review: the BOM survey now requires the workload closure's sourceVersion to equal the registry pin. Moving registry.yaml here while #3087 still carried a v0.2.0 closure would fail CI the moment the two stack, so the pin, the controller digest, and the closure all have to move together — and #3087 is the only one of the two that owns all three.
What I checked before trusting the jump:
| Check | Result at v0.6.0 |
|---|---|
| CRD versions | All seven keep one v1alpha1, served and storage — no conversion, no storage boundary |
| CRD diff | +624 / −10 lines; every removed line is nodeNames description prose |
| Chart values | Purely additive: a disabled-by-default pdb block, ServiceMonitor scrape knobs |
| Attestations | Chart and controller both verify against attest.yml@refs/tags/v0.6.0; chart SBOM still absent, as at v0.2.0 |
| Workload closure | Re-derives to the same three images at the same digests |
| NCCL gauge rename | AICR consumes neither _gbps nor _gbs — no impact |
It also picks up something worth having: v0.6.0 fixes two override paths that matched platform: aws with no GPU guard, so every AWS architecture was stripping /opt/amazon and unsetting NCCL_NET_PLUGIN before the workload started. EFA devices stayed attached and unused while NCCL fell back to TCP over eth0. That was hitting the shipped EKS H100 path.
One thing the bump is not, which is why it carries a manual upgrade record. v0.6.0's behavior change lives entirely in CRD-level CEL: new transition rules making nodeHealthMonitor, goodputMeasurement, bandwidthMeasurement, and workloadMetadata immutable in presence as well as in value on Job and Workflow. nvcre is ownsCRDs, so a deployer that leaves the v0.2.0 CRDs in place finishes with the controller on v0.6.0 and none of those rules present — deployed, Ready, and not actually upgraded. The API version and its served/storage flags are identical in both charts, so neither release status nor storedVersions tells the two apart; only the rule text does. recipes/components/nvcre/upgrades.yaml is new and spells that out per deployer.
Two notes while I was in there. The upstream release notes undersell the change twice — they name three immutable fields where the CRDs carry four, and they do not mention Workflow at all. And testing the closure against v0.6.0 turned up a real bug in #3087's own tooling: v0.6.0 moved the Megatron-LM remote out of the clone command into a shell variable, so the scanner found no literal URL and silently dropped the fetch. The derived closure claimed the training path needed no network at pod start, which is the exact false claim that PR exists to prevent. Fixed in ec93ab74f, and a clone whose remote cannot be resolved is now an error rather than an omission.
| pinned = suffix | ||
| } | ||
| } | ||
| if !sha256DigestPattern.MatchString(pinned) { |
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MINOR: Before this PR the controller image followed the chart (tag: "" falls back to .Chart.AppVersion, deployment.yaml#L48). Now v0.2.0 is hard-coded, and this check validates only the digest suffix. A defaultVersion bump plus the auditedOwnsCRDs update (the only test that fails) installs the new chart's CRDs and args with the v0.2.0 controller while every test stays green. A tag with no version (@sha256:…) also passes.
Minimum correction: when the pin is in tag, require the text before @ to equal the registry's nvcre Helm.DefaultVersion.
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Fixed in 3c4745e8e. When the pin lives in the tag, the test now requires the text before @ to equal the registry's nvcre Helm.DefaultVersion, which also closes the bare @sha256:… case through the same assertion.
I verified it catches the exact scenario you described rather than trusting it — simulating the bump by setting defaultVersion: v0.6.0 against the untouched v0.2.0 digest now fails:
nvcre_registry_test.go:195: components/nvcre/values.yaml: manager.image.tag pins version "v0.2.0"
but the registry installs chart "v0.6.0"; the digest must name the controller that ships with
defaultVersion. Re-resolve with `crane digest .../manager:v0.6.0`
The message names the version to re-resolve against, so the next bump gets the command rather than a puzzle. Your diagnosis of the cause was the useful part — I had not registered that the unset-tag fallback to .Chart.AppVersion was what kept the controller following the chart, so pinning the tag is what severed it. I recorded that in the values comment too, since the next person to bump this needs it more than a reviewer does.
| # Digest of the v0.2.0 multi-arch index, so the qualified bytes are the | ||
| # installed bytes even if the tag is repointed. The chart also exposes a | ||
| # `manager.image.digest` field, but that branch renders repository@digest | ||
| # and drops the version; the tag@digest form used here matches how every |
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NIT: Not every pinned image uses tag@digest: k8s-aibom pins through the digest field with an empty tag.
Minimum correction: drop the "matches how every other pinned image … is written" clause; the BOM-legibility reason stands on its own.
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Fixed in 3c4745e8e — clause dropped.
You were right, and it is an even split rather than a lone exception: k8s-aibom and slinky-slurm pin through the digest field with an empty tag, nvcre and nvsentinel use tag@digest. So the claim was not just imprecise, it was false in half the cases. The BOM-legibility reason now stands on its own, and I used the freed lines to record the version/digest coupling from your MINOR instead.
The component pinned the controller image by tag, so the artifact AICR qualifies is not provably the artifact it installs -- a tag can be repointed at the registry after verification. ADR-025's release and supply chain gate requires no floating reference in a component definition. Pin manager.image.tag to the v0.2.0 multi-arch index digest and regenerate the BOM. The tag@digest form matches every other pinned image in recipes/components/ and keeps the version legible in the BOM; the chart's first-class manager.image.digest field renders repository@digest instead, dropping the version. Also replace the values file's hedge about GHCR credentials with the verified result: helm pull against an empty registry config succeeds, so no pull secret is required for the chart or the image. Signed-off-by: Rohit Rajani <rorajani@nvidia.com>
Four invariants the nvcre component documents but nothing enforced: - fullnameOverride decides the rendered Deployment name and the health check asserts that name as a literal. Changing one without the other installs a component that reports unhealthy for an unrelated-looking reason. Now compared across both files, with the namespace checked against the registry. - The controller image pin must stay a digest. Accepts the pin in either manager.image.tag or manager.image.digest, since the chart renders both. - metrics.serviceMonitor.enabled must stay false, or install starts requiring prometheus-operator CRDs an opt-in adopter has no reason to have. - A ref that omits valuesFile resolves to an empty map. Pinning that makes the catalog's warning testable, and turns a future change to name-based value discovery into a failing test rather than silent drift in the docs. Also guards that platform=kubeflow still supplies kubeflow-trainer, the Trainer source the Enabling NVCRE fragment tells adopters to use. A walker asserting these over overlays and mixins would be dead code: TestNVCRERegisteredWithoutOverlay forbids nvcre from appearing in either, so the invariants are checked against the values file and the documented fragment instead. Each guard was mutation-checked to confirm it fails on the drift it describes. Also drops the same stale GHCR-credential hedge from the registry comment. Signed-off-by: Rohit Rajani <rorajani@nvidia.com>
…digest Both nvcre guards passed on the condition they exist to catch. metrics.serviceMonitor.enabled was read with a discarding type assertion, so an absent or non-boolean key read as false. The chart defaults the monitor on, meaning deleting the key enables it and makes install require prometheus-operator CRDs an opt-in adopter has no reason to have — exactly what the guard forbids. Require an explicit boolean. The digest check substring-matched "sha256:", which accepts sha256:not-a-digest. That pins nothing and renders a reference no runtime can resolve. Match a complete SHA-256 digest instead, taking it from manager.image.digest or the tag@digest suffix. Signed-off-by: Rohit Rajani <rorajani@nvidia.com>
Pinning manager.image.tag by digest severed the link the chart relied on: an unset tag falls back to .Chart.AppVersion, so the controller followed the chart automatically. A hard-coded tag does not, and the digest alone says nothing about which version it names. Bumping defaultVersion plus auditedOwnsCRDs therefore installed the new chart's CRDs and args against the old controller with every test still green, and a tag of bare @sha256:... passed too. TestNVCREValuesPinControllerImageByDigest now requires the text before @ to equal the registry's nvcre Helm.DefaultVersion when the pin lives in the tag, and names the crane command for the right version when it does not. Verified by simulating the bump: defaultVersion v0.6.0 against the v0.2.0 digest fails. Also drop the values comment's claim that tag@digest "matches how every other pinned image in recipes/components/ is written". It does not -- k8s-aibom and slinky-slurm pin through the digest field with an empty tag, an even split. The BOM-legibility reason stands alone, and the comment now records the version/digest coupling instead. Signed-off-by: Rohit Rajani <rorajani@nvidia.com>
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Rebased onto The rebase was required for two reasons. GitHub reported this PR That is #3115, fixed in #3116 and merged to I confirmed that is the cause rather than inferring it from the symptom: Local gate after the rebase: |
3 participants
Summary
Pin the
nvcrecontroller image by digest and guard the opt-in wiring invariants the component documents but nothing enforced.Motivation / Context
The component was registered by #2524 with the controller image pinned by tag, so the artifact AICR qualifies is not provably the artifact it installs — a tag can be repointed at the registry after verification. ADR-025's release and supply chain gate requires no floating reference in a component definition.
Separately, several invariants the component depends on lived only in comments. The sharpest is the naming coupling:
recipes/checks/nvcre/health-check.yamlasserts a literalnvcre-managerDeployment, and its own comment concedes the name "assumescomponents/nvcre/values.yamlsetsfullnameOverride: nvcre". Changing either file alone installs a component that reports unhealthy for a reason that looks unrelated to the change.This is partial work on the artifact-pinning issue, so it links rather than closes it.
Related: #2684
Related: #2685
Related: #2683
Related: #2524
Related: #2541
Type of Change
Component(s) Affected
cmd/aicr,pkg/cli)cmd/aicrd,pkg/server)pkg/recipe)pkg/bundler,pkg/component/*)pkg/collector,pkg/snapshotter)pkg/validator)pkg/errors,pkg/k8s)docs/,examples/) — regenerated BOM onlyImplementation Notes
Digest form.
manager.image.tag: v0.2.0@sha256:b7f7a71a…, pinned to the multi-arch index digest rather than a per-arch manifest so the pin stays correct on botharm64andamd64.The chart also exposes a first-class
manager.image.digestfield, whose own comment makes exactly ADR-025's argument. It was not used, because that branch rendersrepository@digestand drops the version, whiletag@digestpins and keepsv0.2.0legible indocs/user/container-images.md. The latter also matches how every other pinned image inrecipes/components/is written (busybox:1.38.0@sha256:…,ubuntu:26.04@sha256:…,nccl-plugin-gpudirecttcpx-dev:v1.0.15@sha256:…). Both forms were rendered withhelm templateand compared before choosing. The guard test accepts the pin in either field, so switching later needs no test change.Credential hedge replaced with a fact. Both the values file and the registry entry warned that chart pulls "may require GHCR credentials depending on registry policy." They do not —
helm pull oci://ghcr.io/nvidia/cluster-readiness-engine --version v0.2.0succeeds against an emptyHELM_REGISTRY_CONFIG. Both comments now say so.Why the guards are not a walker. #2685 describes checking every
componentRefnamingnvcre. A walker overrecipes/overlays/andrecipes/mixins/would be dead code: the pre-existingTestNVCRERegisteredWithoutOverlayforbidsnvcrefrom appearing in either, and that invariant is load-bearing (ADR-025 makes stock adoption a separate decision). The invariants are therefore asserted against the values file itself and against the documented fragment, which is where they can actually drift.What the five new tests hold:
TestNVCREValuesFileMatchesHealthCheckfullnameOverride-derived Deployment name and namespace match what the health check asserts and the registry installs intoTestNVCREValuesPinControllerImageByDigesttagordigestTestNVCREValuesDisableServiceMonitormetrics.serviceMonitor.enabledstays false, so install needs no prometheus-operator CRDsTestNVCRERefWithoutValuesFileResolvesEmptyvaluesFileresolves to an empty map — pins the documented trap, so adding name-based value discovery fails loudly instead of quietly invalidating the docsTestNVCREDocumentedTrainerSourceProvidesTrainerplatform=kubeflowstill supplieskubeflow-trainer, the Trainer source the "Enabling NVCRE" fragment tells adopters to useTesting
BOM diff is exactly the intended line:
Each new guard was mutation-checked — reverting the pin to a plain tag, renaming
fullnameOverride, and enabling theServiceMonitoreach produce a failure naming the drift:Coverage:
pkg/recipegains tests only, no new exported functions, so no per-package decrease.Not run: full
make qualify(e2e/scan legs need tooling not installed locally —apidiffandgo-licensesare reported missing bymake tools-check). The gates relevant to these paths are above.Risk Assessment
Rollout notes: No shipped overlay or mixin references
nvcre, so the values change reaches only callers who have explicitly opted in. Reverting is a one-line change plusmake bom-docs.One ongoing cost worth naming: the digest must be re-resolved whenever
defaultVersionmoves. The values file carries thecrane digestcommand inline, and theownsCRDsaudit already re-arms on adefaultVersionchange, so this fits the existing chart-bump procedure.Checklist
make testwith-race) — affected packagesmake lint) —golangci-lint+yamllinton affected pathsgit commit -S)