Docker

I studied Docker properly once, a few years ago. Then I barely touched it. When I came back to it recently I was lost. Not completely lost, because I recognised the vocabulary and I could still read a Dockerfile. But lost enough that I went looking for a tutorial to get me started again. That’s the second time I’ve done that, and both times I sat through an hour of somebody explaining what a container is when what I actually needed was ten minutes on what had changed since I was last here. ...