Allow cross-namespace restore of PVC's with CSI volumes

- Check for namespace mapping information. - If there is a valid mapping found, then, replace the original namespace in VolumeSnapshot and PVC Objects to the mapped namespace before restoring - Fixes PR 2143(vmware-tanzu/velero#2143) Signed-off-by: Swanand Shende <[email protected]>
sshende-catalogicsoftware · Dec 10, 2020 · 813ca07 · 813ca07
1 parent 8140dc9
commit 813ca07
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diff --git a/internal/restore/pvc_action.go b/internal/restore/pvc_action.go
@@ -97,6 +97,12 @@ func (p *PVCRestoreItemAction) Execute(input *velero.RestoreItemActionExecuteInp
 
 	resetPVCAnnotations(&pvc, []string{velerov1api.BackupNameLabel, util.VolumeSnapshotLabel})
 
+	// If cross-namespace restore is configured, change the namespace
+	// for PVC object to be restored
+	if val, ok := input.Restore.Spec.NamespaceMapping[pvc.GetNamespace()]; ok {
+		pvc.SetNamespace(val)
+	}
+
 	volumeSnapshotName, ok := pvc.Annotations[util.VolumeSnapshotLabel]
 	if !ok {
 		p.Log.Infof("Skipping PVCRestoreItemAction for PVC %s/%s, PVC does not have a CSI volumesnapshot.", pvc.Namespace, pvc.Name)

diff --git a/internal/restore/volumesnapshot_action.go b/internal/restore/volumesnapshot_action.go
@@ -63,6 +63,13 @@ func (p *VolumeSnapshotRestoreItemAction) Execute(input *velero.RestoreItemActio
 	if err := runtime.DefaultUnstructuredConverter.FromUnstructured(input.Item.UnstructuredContent(), &vs); err != nil {
 		return &velero.RestoreItemActionExecuteOutput{}, errors.Wrapf(err, "failed to convert input.Item from unstructured")
 	}
+
+	// If cross-namespace restore is configured, change the namespace
+	// for VolumeSnapshot object to be restored
+	if val, ok := input.Restore.Spec.NamespaceMapping[vs.GetNamespace()]; ok {
+		vs.SetNamespace(val)
+	}
+
 	_, snapClient, err := util.GetClients()
 	if err != nil {
 		return nil, errors.WithStack(err)