Might be a bit off-topic, but here it goes…
I have been studying James Turnbull’s book The Docker Book, but I got stuck on chapter 7, where we start to look into Docker networking and Docker Swarm.
He starts a section with:
(…) we’d normally create three (or more) hosts to run in separate data centers, clouds or regions (…) We’re going to mimic this required distribution by creating three new hosts each with a Docker daemon( …) We will create three new Ubuntu 16.04 hosts (…) On each host we’ll install a Docker daemon.
He goes one with tip:
TIP Create the hosts using whatever means you run up new hosts and to install Docker you can use the installation instructions in Chapter 2.
I tried many Google searches but could not really find instruction on how to create these three new hosts (I’m on macOS Mojave). Can anyone point me to some instructions or give me some hints?