Kubernetes - Persistent Storage
You want to create a PersistentVolume that allows multiple pods to read and write simultaneously and automatically deletes the volume when released. Which YAML snippet correctly defines these requirements?
Which YAML snippet correctly defines these requirements?
hard📝 Best Practice Q15 of 15
Step-by-Step Solution
Solution:
Step 1: Identify access mode for multiple pods read/write
ReadWriteMany allows multiple pods to read and write simultaneously.Step 2: Check reclaim policy for automatic deletion
persistentVolumeReclaimPolicy: Delete deletes the volume after release.Step 3: Confirm storage type supports ReadWriteMany
NFS supports ReadWriteMany; hostPath does not.Final Answer:
YAML with ReadWriteMany, Delete reclaim policy, and NFS volume -> Option AQuick Check:
ReadWriteMany + Delete + NFS = apiVersion: v1\nkind: PersistentVolume\nmetadata:\n name: pv-multi\nspec:\n capacity:\n storage: 15Gi\n accessModes:\n - ReadWriteMany\n persistentVolumeReclaimPolicy: Delete\n nfs:\n path: /exports/data\n server: 10.0.0.1 [OK]
Quick Trick: Use ReadWriteMany + Delete + NFS for multi-pod writable PV [OK]
Common Mistakes:
- Using hostPath for multi-pod access
- Choosing ReadWriteOnce instead of ReadWriteMany
- Setting reclaim policy to Retain instead of Delete
Master "Persistent Storage" in Kubernetes
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