Grading Checklist

• Correctly identifies the PDB with minAvailable: 1 as the root cause blocking eviction of the sole replica.
• Explains why the eviction API cannot proceed: evicting the pod would violate the PDB since there is only one replica.
• Suggests scaling the deployment to 2+ replicas before retrying the drain.
• Mentions verifying available cluster capacity for the new replica before scaling.
• Describes the difference between --disable-eviction (delete bypass) and normal eviction API behavior.
• Warns against using --delete-emptydir-data or --force without understanding implications.
• Recommends reviewing PDB configuration to use maxUnavailable: 1 or adjusting minAvailable relative to replica count.
• Notes that PDBs are namespace-scoped and matched by label selectors.
• Suggests a long-term fix: ensure production deployments always have replicas > minAvailable.
• Mentions checking kubectl get pdb -n prod and kubectl get events for diagnostic information.
• Considers the maintenance window timeline and communicates risk to stakeholders.