external-snapshotter start failed, because of the nil pointer

[zhucan]

external-snapshotter/pkg/controller/snapshot_controller.go

Line 918 in d5da3c1

storageclassName := *pvc.Spec.StorageClassName

The pvc yaml
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
annotations:
volume.beta.kubernetes.io/storage-class: test-sc
name: test-pvc
namespace: default
spec:
accessModes:

• ReadWriteOnce
  resources:
  requests:
  storage: 30G

if we set the storageclass with the metadata.annotations.volume.beta.kubernetes.io/storage-class not spec.storageClassName, when we rebuilding the external-snapshotter sidecar that it will throw nil pointer.

[zhucan]

@xing-yang

[xing-yang]

This should be fixed in master branch already.

[zhucan]

@xing-yang Thanks, copy that