Pod Crash Loop Due to Missing ConfigMap

Pods entered a crash loop because a required ConfigMap was not present in the namespace.

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What Happened

A pod configuration required a ConfigMap that was deleted by accident, causing the pod to crash due to missing configuration data.

Diagnosis Steps

1Checked pod logs and found errors indicating missing environment variables or configuration files.
2Investigated the ConfigMap and found it had been accidentally deleted.

Root Cause

Missing ConfigMap due to accidental deletion.

Fix/Workaround

• Recreated the ConfigMap in the namespace.
• Re-deployed the pods, and they started successfully.

Lessons Learned

Protect critical resources like ConfigMaps to prevent accidental deletion.

How to Avoid

1Use namespaces and resource quotas to limit accidental deletion of shared resources.
2Implement stricter RBAC policies for sensitive resources.