If you aren’t already familiarized with the Docker Engine - you can use Play With Docker to fiddle around, spin up a container or two using the docker run command, once you get use to the command structure you can move into Docker Compose which makes handling multiple containers easy using .yml files.

Once you’re comfortable with compose I suggest working into Reverse Proxying with something like SWAG or Traefik which offer plugins that give you more control on how requests are handled.

There really is no “guide” for dummies here, you’ve really got to rely on the documentation provided by these services.