Esempio n. 1
0
// GetUniqueVolumeNameFromSpec uses the given VolumePlugin to generate a unique
// name representing the volume defined in the specified volume spec.
// This returned name can be used to uniquely reference the actual backing
// device, directory, path, etc. referenced by the given volumeSpec.
// If the given plugin does not support the volume spec, this returns an error.
func GetUniqueVolumeNameFromSpec(
	volumePlugin volume.VolumePlugin,
	volumeSpec *volume.Spec) (api.UniqueVolumeName, error) {
	if volumePlugin == nil {
		return "", fmt.Errorf(
			"volumePlugin should not be nil. volumeSpec.Name=%q",
			volumeSpec.Name())
	}

	volumeName, err := volumePlugin.GetVolumeName(volumeSpec)
	if err != nil || volumeName == "" {
		return "", fmt.Errorf(
			"failed to GetVolumeName from volumePlugin for volumeSpec %q err=%v",
			volumeSpec.Name(),
			err)
	}

	return GetUniqueVolumeName(
			volumePlugin.GetPluginName(),
			volumeName),
		nil
}