Skip to content

[release-4.19] OCPBUGS-56256: UPSTREAM: 131495: Handle unsupported node expansion for RWX volumes #2302

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
openshift-merge-bot merged 1 commit into from
May 21, 2025
+32 −0
Merged

[release-4.19] OCPBUGS-56256: UPSTREAM: 131495: Handle unsupported node expansion for RWX volumes #2302

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
20 changes: 20 additions & 0 deletions pkg/volume/util/operationexecutor/node_expander.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -144,6 +144,26 @@ func (ne *NodeExpander) expandOnPlugin() (bool, resource.Quantity, error) {
}
_, resizeErr := ne.volumePlugin.NodeExpand(ne.pluginResizeOpts)
if resizeErr != nil {
// In order to support node volume expansion for RWX volumes on different nodes,
// we bypass the check for VolumeExpansionPendingOnNode state during the pre-check
// and then directly call the NodeExpandVolume method on the plugin.
//
// However, it does not make sense where the csi driver does not support node expansion.
// We should not treat this as a failure. It is a workaround for this issue:
// https://github.com/kubernetes/kubernetes/issues/131381.
//
// For other access modes, we should not hit this state, because we will wait for
// VolumeExpansionPendingOnNode before trying to expand volume in kubelet.
// See runPreCheck() above.
//
// If volume is already expanded, then we should not retry expansion on the node if
// driver returns OperationNotSupportedError.
if volumetypes.IsOperationNotSupportedError(resizeErr) && ne.pvcAlreadyUpdated {
klog.V(4).InfoS(ne.vmt.GenerateMsgDetailed("MountVolume.NodeExpandVolume failed", "NodeExpandVolume not supported"), "pod", klog.KObj(ne.vmt.Pod))
ne.testStatus = testResponseData{assumeResizeFinished: true, resizeCalledOnPlugin: false}
return true, ne.pluginResizeOpts.NewSize, nil
}

if volumetypes.IsOperationFinishedError(resizeErr) {
var markFailedError error
ne.actualStateOfWorld.MarkVolumeExpansionFailedWithFinalError(ne.vmt.VolumeName)
Expand Down
12 changes: 12 additions & 0 deletions pkg/volume/util/operationexecutor/node_expander_test.go
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -139,6 +139,18 @@ func TestNodeExpander(t *testing.T) {
expectFinalErrors: false,
expectedStatusSize: resource.MustParse("2G"),
},
{
name: "RWX pv.spec.cap = pvc.status.cap, resizeStatus='', desiredSize > actualSize, reize_op=unsupported",
pvc: addAccessMode(getTestPVC(volumetesting.FailWithUnSupportedVolumeName, "2G", "2G", "2G", nil), v1.ReadWriteMany),
pv: getTestPV(volumetesting.FailWithUnSupportedVolumeName, "2G"),
recoverVolumeExpansionFailure: true,
expectError: false,
expectedResizeStatus: "",
expectResizeCall: false,
assumeResizeOpAsFinished: true,
expectFinalErrors: false,
expectedStatusSize: resource.MustParse("2G"),
},
{
name: "pv.spec.cap > pvc.status.cap, resizeStatus=node_expansion_pending, featuregate=disabled",
pvc: getTestPVC("test-vol0", "2G", "1G", "2G", &nodeResizePending),
Expand Down