feat(headlamp-plugin): add the useKartaWasm and useKartaDefinitions hooks - #355
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Included review availability: Your plan provides up to 12 included reviews per hour; 10 remain after this review. 📝 WalkthroughWalkthroughThe change adds Karta definition utilities and tests, plus React hooks for loading Karta WASM and merging catalog and cluster definitions. The hooks expose loading, error, installation, and CRD state. ChangesKarta definition loading
Priority: ⬇️ Low Estimated code review effort: 3 (Moderate) | ~20 minutes Change: Feature Sequence Diagram(s)sequenceDiagram
participant useKartaDefinitions
participant Catalog
participant KartaCR
participant mergeDefinitions
useKartaDefinitions->>Catalog: load catalog definitions
useKartaDefinitions->>KartaCR: list cluster Kartas
KartaCR-->>useKartaDefinitions: return cluster Kartas or error
useKartaDefinitions->>mergeDefinitions: merge catalog and cluster definitions
mergeDefinitions-->>useKartaDefinitions: return definitions and state
Merge Risk: ⚪ Minimal · up to No outstanding issues were identified in this review pass. The hooks are described as isolated additions not yet wired into the UI, limiting production impact, and no concrete defect could be confirmed from the available evidence. 🚥 Pre-merge checks | ✅ 4 | ❌ 1❌ Failed checks (1 warning)
✅ Passed checks (4 passed)
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🧪 Generate unit tests (beta)
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Inline comments:
In `@headlamp-plugin/src/hooks/useKartaDefinitions/useKartaDefinitions.ts`:
- Around line 49-50: Update useKartaDefinitions to derive the cluster request’s
pending state from the KartaCR.useList() result, include it in loading alongside
catalogLoading, and keep installed false until the cluster list has settled;
preserve the existing cluster mapping once data is available.
In `@headlamp-plugin/src/lib/karta/definitions.ts`:
- Line 40: Update the catalog and cluster merge logic around rootGVKKey and
byKey.set so Kartas whose rootComponent.kind is absent are not keyed by the
empty string; preserve each root-less definition separately or reject it before
GVK-based merging. Ensure two root-less Kartas cannot overwrite one another, and
add a merge test covering that case.
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headlamp-plugin/src/hooks/index.tsheadlamp-plugin/src/hooks/useKartaDefinitions/useKartaDefinitions.test.tsheadlamp-plugin/src/hooks/useKartaDefinitions/useKartaDefinitions.tsheadlamp-plugin/src/hooks/useKartaWasm/useKartaWasm.test.tsheadlamp-plugin/src/hooks/useKartaWasm/useKartaWasm.tsheadlamp-plugin/src/lib/karta/definitions.test.tsheadlamp-plugin/src/lib/karta/definitions.tsheadlamp-plugin/src/lib/karta/index.tsheadlamp-plugin/src/lib/karta/karta.tsheadlamp-plugin/src/lib/karta/kartaUtil.test.tsheadlamp-plugin/src/lib/karta/kartaUtil.tskarta-wasm/bindings.gokarta-wasm/bindings_test.gokarta-wasm/core/core.gokarta-wasm/core/core_test.gokarta-wasm/main_js.go
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…ooks useKartaWasm wraps getKartaWasm() with loading and error state, and drops the result if the component unmounts before the module resolves. The load itself is already cached, so mounting the hook in several places does not re-instantiate the module. useKartaDefinitions merges the cluster's kartas.run.ai CRs with the catalog embedded in the module, keyed by root GVK so a cluster definition wins over the catalog entry for the same workload kind, and catalog-only kinds still surface. KartaCR.useList watches, so the merge re-runs when a definition is added or removed. A missing CRD is not an error: without Karta installed the plugin falls back to the catalog rather than blocking. Not yet wired into index.tsx. Refs #302 Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Signed-off-by: moshe.pinhasi <moshe.pinhasi@run.ai>
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…nitions useList reports a pending request as a null list with no error, so the hook read installed as true and loading as false while the request was still in flight, briefly presenting the catalog as the whole truth. The cluster list now has to settle before either is reported. mergeDefinitions keyed a definition with no root GVK as the empty string, so any two of them overwrote each other. Definitions without a version and kind name no workload, which is what pkg/catalog rejects them for, so they are left out of the merge instead. Refs #302 Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Signed-off-by: moshe.pinhasi <moshe.pinhasi@run.ai>
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What does this PR do?
The definition-mapping half of #302, on top of the engine from #303.
useKartaWasmwrapsgetKartaWasm()with loading and error state, and dropsthe result if the component unmounts first. The load is already cached, so
mounting the hook in several places does not re-instantiate the module.
useKartaDefinitionsmerges the cluster'skartas.run.aiCRs with thecatalog embedded in the module, keyed by root GVK so a cluster definition wins
for the same kind and catalog-only kinds still surface.
KartaCR.useListwatches, so the merge re-runs when a definition is added or removed.
to the catalog rather than blocking, which is what makes it useful on a
cluster that has never seen Karta.
Not wired into
index.tsx, so nothing changes on screen.Tested with
renderHook: the loading to resolved transition, the failure path,the cluster-wins merge, and the missing-CRD fallback.
Related issue(s)
Refs #302
AttributePodsandRollupReadyCountsare not included. Pod to componentinference was removed in #303; ready-count rollup has not been built.
EvaluatePhasesis deliberately out too: the workloads table will read thephases off
buildTreefor now.Checklist
git commit -s)make check)Summary by CodeRabbit