I wanted to refresh my Docker knowledge, as it is been a while since I've done anything non-trivial. Learning Docker is an almost 3 hours course that teaches the basics, but covers quite a lot of topics; I'd say that almost if not all of the relevant ones. It is really well done, and goes through a lot of content, but well explained, and with very good examples. I was surprised with the samples because, with a topic like containers, you can easily get into boring things, but using
netcat to show how networks in Docker are created and function, showing the relation with
iptables, or a very clear example of the Dockerfile alters the image layers, are only a brief list of how you'll learn.
Recommended not only because of the content, but also because of the form.