PV delete with leader election

[MahanteshR12]

Problem:

• The CSI driver runs on all three worker nodes.
• Each node had its own csi-provisioner.
• Without leader election, all three provisioners responded to the same PVC.
• This created three IBM volumes with the same name.
• During deletion, the driver searched by name and found multiple matching volumes, so it could not determine which one to delete.

Fix:

• Enabled --leader-election=true.
  • Only one provisioner now processes PVC creation and deletion.
  • The others remain standby.
  • Result: one PVC creates exactly one IBM volume.
• Stored and reused the native IBM volume ID (r006-...) during deletion.
  • The driver deletes the exact volume directly instead of relying on its name.

[arahamad]

lgtm