[ -e /usr/lib/apt/methods/https ] || {
  apt-get update
  apt-get install -y apt-transport-https
}
apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 36A1D7869245C8950F966E92D8576A8BA88D21E9
sh -c "echo deb https://get.docker.com/ubuntu docker main > /etc/apt/sources.list.d/docker.list"
apt-get update
apt-get install -y --force-yes apparmor lxc-docker