Install Docker Engine, Docker Compose and Docker Machine

install_docker.sh

## Install Docker Engine (need sudo)
wget -qO- https://get.docker.com/ | sh

sudo usermod -aG docker <username>

## Install Docker Compose
curl -L https://github.com/docker/compose/releases/download/1.6.2/docker-compose-`uname -s`-`uname -m` > docker-compose
sudo mv docker-compose /usr/local/bin/docker-compose
sudo chmod +x /usr/local/bin/docker-compose

## Install Docker Machine
curl -L https://github.com/docker/machine/releases/download/v0.6.0/docker-machine-`uname -s`-`uname -m` > docker-machine
sudo mv docker-machine /usr/local/bin/docker-machine
sudo chmod +x /usr/local/bin/docker-machine