Multi-Attach volume fix for vSphere

pkg/controller/volume/attachdetach/reconciler/reconciler.go

@@ -148,6 +148,11 @@ func (rc *reconciler) isMultiAttachForbidden(volumeSpec *volume.Spec) bool {
 	// Only if this volume is a persistent volume, we have reliable information on wether it's allowed or not to
 	// multi-attach. We trust in the individual volume implementations to not allow unsupported access modes
 	if volumeSpec.PersistentVolume != nil {
+		// Check for persistent volume types which do not fail when trying to multi-attach
+		if volumeSpec.PersistentVolume.Spec.VsphereVolume != nil {
+			return false
+		}
+
 		if len(volumeSpec.PersistentVolume.Spec.AccessModes) == 0 {
 			// No access mode specified so we don't know for sure. Let the attacher fail if needed
 			return false