Add support bundle analyzer for PDB eviction failures #3290
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Add analyzer to detect PodDisruptionBudget-related pod eviction failures in k0scontroller logs. This helps identify when PDBs are blocking autopilot upgrades, causing cluster upgrades to hang. The analyzer: - Scans k0scontroller logs for eviction error patterns - Detects "error when evicting pods" and PDB violation messages - Provides comprehensive remediation guidance - Includes kubectl commands and step-by-step resolution steps This makes troubleshooting PDB-blocked upgrades significantly faster for support engineers and customers.
![cursor[bot]](https://avatars.githubusercontent.com/in/1210556?s=60&v=4){kind=small}
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This PR has been released (on staging) and is available for download with a embedded-cluster-smoke-test-staging-app license ID. Online Installer: Airgap Installer (may take a few minutes before the airgap bundle is built): Happy debugging! |
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Summary
This PR adds a support bundle analyzer that detects PodDisruptionBudget-related pod eviction failures in k0scontroller logs. These failures cause autopilot upgrades to hang, making the cluster unable to complete upgrades.
Problem
When customers deploy PodDisruptionBudgets with restrictive settings (e.g.,
minAvailabletoo high ormaxUnavailabletoo low), the k0s autopilot cannot evict pods during node draining. This causes cluster upgrades to hang indefinitely. Previously, identifying this issue required manually grepping through k0scontroller logs.Solution
The new analyzer:
error when evicting podsCannot evict pod as it would violate the pod's disruption budgetTesting
Impact
This change significantly reduces time-to-resolution for PDB-blocked upgrade issues by surfacing the problem automatically in support bundle analysis.
Related Issues
Related to recent troubleshoot repo work on partial discovery failures with Kubernetes API in cluster-resources collector.