Add some glitter to RPi Docker containers

With limited investment, the Raspberry Pi is a great platform to touch, learn and demonstrate many concepts of modern computing. Docker has very rapidely found its way on the RPi, mainly with the help of the Hypriot distribution. I use a flock of RPi to demonstrate and help visualize many Docker concepts. With its hardware interfacing capabilities, the Raspberry Pi is also a very popular IOT platform. For IOT, Docker could have the same “mass innovation” enabling effect as for mainstream computing. »