agent/taskresource/volume/dockervolume.go
func (vol *VolumeResource) StatusString(status resourcestatus.ResourceStatus) string {
	return VolumeStatus(status).String()
}
func (vol *VolumeResource) StatusString(status resourcestatus.ResourceStatus) string {
	return VolumeStatus(status).String()
}
// StatusString returns the string of the cgroup resource status