#!/bin/sh
#
# LXC to btrfs subvolume converter
# Convert the LXC rootfs into a btrfs subvolume to
# backup with btrfs snapshots.
#
for rootfs in /var/lib/lxc/*/rootfs; do
  {
    mv "${rootfs}" "${rootfs}.saved"
    btrfs subvolume create "${rootfs}"
    mv "${rootfs}.saved"/* "${rootfs}"
    rmdir "${rootfs}.saved"
    echo "${rootfs} to subvolume\n"
  }
done
#for rootfs in /var/lib/lxc/*/rootfs;
#do
#  echo "${rootfs}"
#done