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Scenario #353
Storage
Kubernetes v1.23, NFS volume

Misconfigured ReadOnlyMany Mount Blocks Write Operations

Volume mounted as ReadOnlyMany blocked necessary write operations, despite NFS server allowing writes.

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What Happened

VolumeMount was incorrectly marked as readOnly: true. Application failed on write attempts.

Diagnosis Steps
  • 1Application logs: read-only filesystem.
  • 2Pod manifest showed readOnly: true.
Root Cause

Misconfiguration in the volumeMounts spec.

Fix/Workaround
• Updated the manifest to readOnly: false.
Lessons Learned

Read-only flags silently break expected behavior.

How to Avoid
  • 1Validate volume mount flags in CI.
  • 2Use initContainer to test mount behavior.
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