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1.3: fix Fix claimRef and snapshotRef checks #354

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merged 1 commit into from
Oct 8, 2019
Merged

1.3: fix Fix claimRef and snapshotRef checks #354

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55 changes: 51 additions & 4 deletions pkg/controller/controller.go
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Original file line number Diff line number Diff line change
Expand Up @@ -709,9 +709,39 @@ func (p *csiProvisioner) getPVCSource(options controller.ProvisionOptions) (*csi
return nil, fmt.Errorf("error, new PVC request must be greater than or equal in size to the specified PVC data source, requested %v but source is %v", requestedSize, sourcePVC.Spec.Size())
}

if sourcePVC.Spec.VolumeName == "" {
return nil, fmt.Errorf("volume name is empty in source PVC %s", sourcePVC.Name)
}

sourcePV, err := p.client.CoreV1().PersistentVolumes().Get(sourcePVC.Spec.VolumeName, metav1.GetOptions{})
if err != nil {
klog.Warningf("error getting volume %s for PVC %s/%s: %s", sourcePVC.Spec.VolumeName, sourcePVC.Namespace, sourcePVC.Name, err)
return nil, fmt.Errorf("claim in dataSource not bound or invalid")
}

if sourcePV.Spec.CSI == nil {
klog.Warningf("error getting volume source from %s for PVC %s/%s", sourcePVC.Spec.VolumeName, sourcePVC.Namespace, sourcePVC.Name)
return nil, fmt.Errorf("claim in dataSource not bound or invalid")
}

if sourcePV.Spec.CSI.Driver != options.StorageClass.Provisioner {
klog.Warningf("the source volume %s for PVC %s/%s is handled by a different CSI driver than requested by StorageClass %s", sourcePVC.Spec.VolumeName, sourcePVC.Namespace, sourcePVC.Name, *options.PVC.Spec.StorageClassName)
return nil, fmt.Errorf("claim in dataSource not bound or invalid")
}

if sourcePV.Spec.ClaimRef == nil {
klog.Warningf("the source volume %s for PVC %s/%s is not bound", sourcePVC.Spec.VolumeName, sourcePVC.Namespace, sourcePVC.Name)
return nil, fmt.Errorf("claim in dataSource not bound or invalid")
}

if sourcePV.Spec.ClaimRef.UID != sourcePVC.UID || sourcePV.Spec.ClaimRef.Namespace != sourcePVC.Namespace || sourcePV.Spec.ClaimRef.Name != sourcePVC.Name {
klog.Warningf("the source volume %s for PVC %s/%s is bound to a different PVC than requested", sourcePVC.Spec.VolumeName, sourcePVC.Namespace, sourcePVC.Name)
return nil, fmt.Errorf("claim in dataSource not bound or invalid")
}

volumeSource := csi.VolumeContentSource_Volume{
Volume: &csi.VolumeContentSource_VolumeSource{
VolumeId: sourcePVC.Spec.VolumeName,
VolumeId: sourcePV.Spec.CSI.VolumeHandle,
},
}
klog.V(5).Infof("VolumeContentSource_Volume %+v", volumeSource)
Expand Down Expand Up @@ -740,14 +770,31 @@ func (p *csiProvisioner) getSnapshotSource(options controller.ProvisionOptions)

snapContentObj, err := p.snapshotClient.VolumesnapshotV1alpha1().VolumeSnapshotContents().Get(snapshotObj.Spec.SnapshotContentName, metav1.GetOptions{})
if err != nil {
return nil, fmt.Errorf("error getting snapshot:snapshotcontent %s:%s from api server: %v", snapshotObj.Name, snapshotObj.Spec.SnapshotContentName, err)
klog.Warningf("error getting snapshotcontent %s for snapshot %s/%s from api server: %s", snapshotObj.Spec.SnapshotContentName, snapshotObj.Namespace, snapshotObj.Name, err)
return nil, fmt.Errorf("snapshot in dataSource not bound or invalid")
}

if snapContentObj.Spec.VolumeSnapshotRef == nil {
klog.Warningf("snapshotcontent %s for snapshot %s/%s is not bound", snapshotObj.Spec.SnapshotContentName, snapshotObj.Namespace, snapshotObj.Name)
return nil, fmt.Errorf("snapshot in dataSource not bound or invalid")
}

if snapContentObj.Spec.VolumeSnapshotRef.UID != snapshotObj.UID || snapContentObj.Spec.VolumeSnapshotRef.Namespace != snapshotObj.Namespace || snapContentObj.Spec.VolumeSnapshotRef.Name != snapshotObj.Name {
klog.Warningf("snapshotcontent %s for snapshot %s/%s is bound to a different snapshot", snapshotObj.Spec.SnapshotContentName, snapshotObj.Namespace, snapshotObj.Name)
return nil, fmt.Errorf("snapshot in dataSource not bound or invalid")
}
klog.V(5).Infof("VolumeSnapshotContent %+v", snapContentObj)

if snapContentObj.Spec.VolumeSnapshotSource.CSI == nil {
return nil, fmt.Errorf("error getting snapshot source from snapshot:snapshotcontent %s:%s", snapshotObj.Name, snapshotObj.Spec.SnapshotContentName)
klog.Warningf("error getting snapshot source from snapshotcontent %s for snapshot %s/%s", snapshotObj.Spec.SnapshotContentName, snapshotObj.Namespace, snapshotObj.Name)
return nil, fmt.Errorf("snapshot in dataSource not bound or invalid")
}

if snapContentObj.Spec.VolumeSnapshotSource.CSI.Driver != options.StorageClass.Provisioner {
klog.Warningf("snapshotcontent %s for snapshot %s/%s is handled by a different CSI driver than requested by StorageClass %s", snapshotObj.Spec.SnapshotContentName, snapshotObj.Namespace, snapshotObj.Name, options.StorageClass.Name)
return nil, fmt.Errorf("snapshot in dataSource not bound or invalid")
}

klog.V(5).Infof("VolumeSnapshotContent %+v", snapContentObj)
snapshotSource := csi.VolumeContentSource_Snapshot{
Snapshot: &csi.VolumeContentSource_SnapshotSource{
SnapshotId: snapContentObj.Spec.VolumeSnapshotSource.CSI.SnapshotHandle,
Expand Down
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