lxc launch ubuntu-daily:x cloud-init
lxc exec cloud-init bash
echo "deb http://us.archive.ubuntu.com/ubuntu/ xenial-proposed main" | sudo tee /etc/apt/sources.list.d/proposed.list
sudo apt-get update
sudo apt-get install cloud-init -y
sudo rm -Rf /var/lib/cloud /var/log/cloud-init*
sudo shutdown -r now