basic steps to setup docker on Ubuntu 15.10 Willy
apt-get install apt-transport-https ca-certificates
sudo apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D
sudo echo deb https://apt.dockerproject.org/repo ubuntu-wily main >> /etc/apt/sources.list.d/docker.list
sudo apt-get update
sudo apt-get purge lxc-docker
sudo apt-cache policy docker-engine
sudo apt-get install docker-engine
sudo service docker start
sudo usermod -aG docker cicorias