fix(bundler): clean up orphaned KAI and Kubeflow Trainer CRDs on undeploy#416
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Good fix — the orphaned CRD problem is real and the API group matching approach is the right design. Two inline comments: one on CRD deletion ordering relative to namespace teardown, one on grep precision. Clean change overall.
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The CRD deletion ordering is the only real thing
…ploy KAI scheduler CRDs (configs, schedulingshards, topologies) are created by the KAI operator at runtime, not by the Helm chart. Kubeflow Trainer CRDs are installed by the validator during conformance/performance tests. Neither carries Helm labels, so the existing label-based CRD sweep in delete_release_cluster_resources misses them. - Add explicit CRD cleanup before namespace deletion (while controllers still run) with --wait=false to avoid finalizer hangs - Anchor grep patterns with $ to prevent false matches - Add orphaned CRD detection in undeploy post-flight verification - Add orphaned CRD warning in deploy pre-flight checks Signed-off-by: Yuan Chen <[email protected]>
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Thanks Mark — both addressed:
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…ploy (NVIDIA#416) Signed-off-by: Yuan Chen <[email protected]> Co-authored-by: Mark Chmarny <[email protected]>
This was referenced Apr 17, 2026
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Summary
Fix undeploy.sh to clean up orphaned CRDs from KAI scheduler and Kubeflow Trainer that survive Helm uninstall.
Motivation / Context
After
undeploy.shcompletes, 6 orphaned CRDs remain on the cluster:configs.kai.scheduler,schedulingshards.kai.scheduler,topologies.kai.scheduler— created by the KAI operator at runtime, not by the Helm charttrainjobs.trainer.kubeflow.org,trainingruntimes.trainer.kubeflow.org,clustertrainingruntimes.trainer.kubeflow.org— installed by the validator during conformance/performance testsNeither set carries Helm labels, so the existing
delete_release_cluster_resourceslabel-based sweep misses them.Fixes: N/A
Related: N/A
Type of Change
Component(s) Affected
pkg/bundler,pkg/component/*)Implementation Notes
undeploy.sh.tmplafter namespace deletion, targetingkai.schedulerandtrainer.kubeflow.orgAPI groupsTesting
Verified generated undeploy.sh includes the new cleanup steps.
Risk Assessment
Rollout notes: Existing bundles won't have the fix — only newly generated bundles. Users with stale CRDs can manually delete them with
kubectl delete crd <name>.Checklist
make testwith-race)make lint)git commit -S)