apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D
apt-get install software-properties-common
apt-add-repository 'deb https://apt.dockerproject.org/repo ubuntu-xenial main'
apt-get update
apt-cache policy docker-engine
systemctl status docker
apt-get install docker-engine
usermod -a -G docker jenkins
chown -R jenkins /var/run/docker.sock