Docker setup on Ubuntu 16.04 (xenial)

docker_setup.sh

#
#  Setup of docker on Ubuntu 16.04
#  SEE:  https://docs.docker.com/engine/installation/linux/ubuntulinux/
#
sudo apt-get install apt-transport-https ca-certificates
sudo apt-key adv \
               --keyserver hkp://ha.pool.sks-keyservers.net:80 \
               --recv-keys 58118E89F3A912897C070ADBF76221572C52609D

sudo add-apt-repository "deb https://apt.dockerproject.org/repo ubuntu-$(lsb_release -cs) main"
sudo apt-get update

sudo apt-get install -y linux-image-extra-$(uname -r) linux-image-extra-virtual
apt-cache policy docker-engine
sudo apt-get install -y docker-engine

docker --version
#Docker version 1.12.3, build 6b644ec

# Add local user to docker group to enable commands without sudo
sudo usermod -aG docker $USER