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Support adding external finalizer for static provisioned volumes #129

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deepakkinni
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@deepakkinni deepakkinni commented Oct 25, 2022

Support adding the new finalizer external-provisioner.volume.kubernetes.io/finalizer on statically provisioned volumes

The finalizer will be added to the following volumes:

  1. Dynamically provisioned volumes
  2. Statically provisioned CSI volumes
  3. Staically provisioned in-tree volumes that are currently under migration

For (2) and (3), the finalizer will be added only if the volume is in a Bound state and removed if the volume changes to any other state apart from Bound

Signed-off-by: Deepak Kinni [email protected]

Added support for `external-provisioner.volume.kubernetes.io/finalizer` on statically provisioned volumes.

@k8s-ci-robot k8s-ci-robot added the cncf-cla: yes Indicates the PR's author has signed the CNCF CLA. label Oct 25, 2022
@k8s-ci-robot k8s-ci-robot added the size/L Denotes a PR that changes 100-499 lines, ignoring generated files. label Oct 25, 2022
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volumeFinalizers, modified = addFinalizer(volumeFinalizers, finalizerPV)
}
// For statically provisioned volumes remove the external finalizer if the volume is not in a Bound state
if volume.Status.Phase != v1.VolumeBound {
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(starting a separate "thread")
If you remove this check, then the code for dynamic and static provisioning will be very similar. I wonder if there is room for improvement and removing the special case. Like if ctrl.addFinalizer && reclaimPolicy == v1.PersistentVolumeReclaimDelete && volume.DeletionTimestamp == nil && (isDynamic || phase == Bound)

@jsafrane
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/lgtm
/approve

@k8s-ci-robot k8s-ci-robot added the lgtm "Looks good to me", indicates that a PR is ready to be merged. label Nov 29, 2022
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[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: deepakkinni, jsafrane

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@k8s-ci-robot k8s-ci-robot added the approved Indicates a PR has been approved by an approver from all required OWNERS files. label Nov 29, 2022
@k8s-ci-robot k8s-ci-robot merged commit 2419639 into kubernetes-sigs:master Nov 29, 2022
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3 participants