fix(driver): update ControllerUnpublishVolume error handling

UpCloudLtd / upcloud-csi

Container Storage Interface (CSI) driver for UpCloud's MaxIOPS storage offering

MIT License

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fix(driver): update ControllerUnpublishVolume error handling #78

Closed peknur closed 1 year ago

peknur commented 1 year ago

Return OK response if volume is already detached or missing from the node.

This updates ControllerUnpublishVolume to align with the spec:

This operation MUST be idempotent. If the volume corresponding to the volume_id is not attached to the node corresponding to the node_id, the Plugin MUST reply 0 OK