Install Docker

First update your install.

This can last some time...

type: sudo apt-get update && sudo apt-get upgrade

Get Docker:

type: curl -fsSL https://get.Docker.com -o get-Docker.sh && chmod +x get-Docker.sh

type: sudo ./get-Docker.sh

type: sudo usermod -aG docker pi

Test docker functionality:

type: /etc/group | grep docker

type: newgrp docker

type: docker run hello-world