In addition, CoreOS has its own version of a docker-like thing called rocket https://coreos.com/blog/rocket/ https://coreos.com/blog/rocket/ I personally found

In addition, CoreOS has its own version of a docker-like thing called rocket https://coreos.com/blog/rocket/ https://coreos.com/blog/rocket/ I personally found this blog post a bit of a a-ha moment in terms of understanding what docker is vs. CoreOS (and, at the time I was also researching what kubernetes is and how to run it)