lxd/storage_btrfs.go
func getSnapshotSubvolumePath(project, poolName string, containerName string) string {
	return shared.VarPath("storage-pools", poolName, "containers-snapshots", projectPrefix(project, containerName))
}
func getSnapshotSubvolumePath(project, poolName string, containerName string) string {
	return shared.VarPath("storage-pools", poolName, "containers-snapshots", projectPrefix(project, containerName))
}
// ${LXD_DIR}/storage-pools/<pool>/containers-snapshots