Fix nil pointer dereference in pdbminavailable check #1043
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The pdbminavailable check crashed with a panic when it encountered a PodDisruptionBudget that has spec.minAvailable defined but is missing the required spec.selector field. The code attempted to access pdb.Spec.Selector.MatchLabels and pdb.Spec.Selector.MatchExpressions without checking if Selector was nil, causing a nil pointer dereference. This fix adds a nil check for pdb.Spec.Selector before accessing its fields. If the selector is missing, the check now returns a clear diagnostic message with a link to Kubernetes documentation instead of panicking. Also added a unit test TestPDBWithMinAvailableButNoSelector to verify the fix handles this edge case correctly. Fixes #1041 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
rhybrillou
approved these changes
Oct 24, 2025
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The pdbminavailable check crashed with a panic when it encountered a PodDisruptionBudget that has spec.minAvailable defined but is missing the required spec.selector field.
The code attempted to access pdb.Spec.Selector.MatchLabels and pdb.Spec.Selector.MatchExpressions without checking if Selector was nil, causing a nil pointer dereference.
This fix adds a nil check for pdb.Spec.Selector before accessing its fields. If the selector is missing, the check now returns a clear diagnostic message with a link to Kubernetes documentation instead of panicking.
Also added a unit test TestPDBWithMinAvailableButNoSelector to verify the fix handles this edge case correctly.
Fixes #1041
🤖 Generated with Claude Code