So, you successfully have your containers and you have started to be able to run containers to do stuff. Brilliant. So let us drop into those containers and run something new. You are probably half way there with your understanding, maybe we could say that you have just opened the door on containers, well, you are just about to step in an see how big the room is! Containers give you great, little, isolated machines that you can do with as you please and then throw away.