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fix(janitor): accept GPUReset updates when spec.selector is omitted - #2066
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spec.selector is optional and an omitted selector resets all GPUs on the node, but the update webhook read Selector.UUIDs without a nil check. The first update, which adds the finalizer, panicked and was denied, so the GPUReset never started. Signed-off-by: Youssef Omar Bouden <youssef.bouden2002@gmail.com>
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Merge Risk: 🔵 Low · up to
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| Check name | Status | Explanation |
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| Description Check |  |
Check skipped - CodeRabbit’s high-level summary is enabled. |
| Title check | |
The title clearly and concisely describes the main change: allowing GPUReset updates when spec.selector is omitted. |
| Linked Issues check | |
The changes satisfy the coding requirements in issue #2065. ValidateUpdate now passes both optional selectors through selectorUUIDs, which returns nil for an omitted selector. The existing lengt… |
| Out of Scope Changes check | |
The change is limited to GPUReset update validation and tests for the behavior required by issue #2065. The nil-safe helper and regression tests directly support the issue. No unrelated source, API, o… |
| Docstring Coverage | |
Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 1 functions across 2 files. |
Full details: Linked Issues check
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Explanation
The changes satisfy the coding requirements in issue
#2065.ValidateUpdatenow passes both optional selectors throughselectorUUIDs, which returnsnilfor an omitted selector. The existing length and UUID comparison therefore treats omission as an empty UUID list and avoids the nil-pointer panic. The new tests accept a finalizer-only update with no selector and reject adding UUIDs after creation.
Full details: Out of Scope Changes check
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Explanation
The change is limited to GPUReset update validation and tests for the behavior required by issue
#2065. The nil-safe helper and regression tests directly support the issue. No unrelated source, API, or component changes are present in the reviewed diff.
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Inline comments:
Review comments at @janitor/pkg/webhook/v1alpha1/janitor_webhook.go:
- Around line 351-369: Update ValidateUpdate and validateNodeAndGPUs to compare
UUIDs and PCIBusIDs independently, rejecting changes to either field while
treating nil and empty slices as equivalent. Replace selectorUUIDs with a helper
that returns both identifier fields, preserving their field identity throughout
validation.
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janitor/pkg/webhook/v1alpha1/janitor_webhook.gojanitor/pkg/webhook/v1alpha1/janitor_webhook_test.go
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Summary
Fixes #2065.
spec.selectoris optional on GPUReset, and an omitted selector resets all GPUs on the node.gpuResetValidator.ValidateUpdatereadSelector.UUIDson both objects without a nil check, so the first update of a GPUReset without a selector (the controller adding its finalizer) panicked in the webhook and was denied. The reset never started.The validator now reads the UUIDs through a small nil-safe helper, so an omitted selector is compared as an empty UUID list. The immutability check is unchanged: adding UUIDs to a GPUReset created without a selector is still rejected.
Type of Change
Component(s) Affected
Testing
Two webhook cases added: an update with the selector omitted is accepted (it panics at
janitor_webhook.go:351on main), and an update that adds UUIDs to an omitted selector is rejected. Ran locally with Go 1.27.2 on macOS arm64:go test -race ./...andgo vet ./...injanitor/,golangci-lint run ./pkg/webhook/...(0 issues).make lint-test-alland the e2e suite were not run, and the change was not tried on a cluster.Checklist
Summary by CodeRabbit