fix(validator): skip secure-accelerator-access for Slinky Slurm leaves

[mikecook]

Summary

Skip secure-accelerator-access for Slinky Slurm leaves instead of running it against a GPU allocation path Slurm never uses.

Motivation / Context

Slinky NodeSet pods reserve a node's GPUs through their own Kubernetes pod spec, and Slurm allocates per job internally via GRES and cgroups. CheckSecureAcceleratorAccess schedules a Kubernetes-native GPU test pod, which either hangs Pending with no spare capacity or passes using capacity elsewhere without exercising Slurm's own isolation. slinky-slurm-health and slinky-slurm-imex-channel already validate Slurm's own GPU access path, so this check adds nothing but a false result on Slurm leaves.

Fixes: N/A
Related: N/A

Type of Change

• Bug fix (non-breaking change that fixes an issue)
• New feature (non-breaking change that adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation update
• Refactoring (no functional changes)
• Build/CI/tooling

Component(s) Affected

• CLI (cmd/aicr, pkg/cli)
• API server (cmd/aicrd, pkg/server)
• Recipe engine / data (pkg/recipe)
• Bundlers (pkg/bundler, pkg/component/*)
• Collectors / snapshotter (pkg/collector, pkg/snapshotter)
• Validator (pkg/validator)
• Core libraries (pkg/errors, pkg/k8s)
• Docs/examples (docs/, examples/)
• Other: ____________

Implementation Notes

Mirrors CheckRobustController's existing component-gated skip pattern. recipeHasComponent(ctx, "slinky-slurm") returns validators.Skip(...) before any Kubernetes resource is touched, so the skip applies to every Slurm leaf regardless of which overlay declared the check. This is a fix at the check level rather than a per-overlay exclusion, since no exclusion mechanism exists in the recipe engine and four pre-existing h100 Slurm leaves (AKS, EKS, GKE, Kind) carry the same latent bug today.

Testing

make qualify

Passed. Added TestCheckSecureAcceleratorAccess_SkipsForSlinkySlurm, a table-driven test covering slinky-slurm present, slinky-slurm disabled, slinky-slurm absent, and a nil recipe.

Risk Assessment

• Low — Isolated change, well-tested, easy to revert

Rollout notes: N/A

Checklist

• Tests pass locally (make test with -race)
• Linter passes (make lint)
• I did not skip/disable tests to make CI green
• I added/updated tests for new functionality
• I updated docs if user-facing behavior changed
• Changes follow existing patterns in the codebase
• Commits are cryptographically signed (git commit -S)

[coderabbitai]

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ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: ASSERTIVE

Plan: Enterprise

Run ID: 380e24d4-12a3-4685-b082-1d4147e4f0a4

📥 Commits

Reviewing files that changed from the base of the PR and between 9019281 and fa8ce58.

📒 Files selected for processing (2)

• validators/conformance/secure_access_check.go
• validators/conformance/secure_access_check_test.go

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📝 Walkthrough

Walkthrough

CheckSecureAcceleratorAccess now skips validation when the recipe enables slinky-slurm. This prevents Kubernetes GPU probing for Slurm-managed allocation. Tests cover enabled, disabled, absent, and nil recipe cases.

Priority: ⬇️ Low

Estimated code review effort: 2 (Simple) | ~10 minutes

Change: Bug fix

Suggested reviewers: lalitadithya

Merge Risk: ⚪ Minimal · up to c1965

The validator now avoids the incompatible Kubernetes GPU probe only for enabled Slinky Slurm recipes while preserving validation for other configurations. No actionable merge risk remains.

🚥 Pre-merge checks | ✅ 4

✅ Passed checks (4 passed)

Check name	Status	Explanation
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Title check	✅ Passed	The title clearly and concisely identifies the validator change: skipping secure accelerator access checks for Slinky Slurm leaves.
Description check	✅ Passed	The description directly explains the Slinky Slurm behavior, motivation, implementation, testing, and risk for the changeset.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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