There aren't any. Someone should write one. My beef with them all is they start from the top down, taking giant leaps of logic and assuming that everyone has

There aren't any. Someone should write one. My beef with them all is they start from the top down, taking giant leaps of logic and assuming that everyone has the same use cases and motivations. In my personal opinion, humble though it may not be, the way to understand Kubernetes is from the bottom up. First of all, figure out how Linux starts your process. I've noticed that a lot of people who are afraid of k8s are afraid of it partly because they have no idea how a Linux machine works anyway. So start there. After you've got that figured out, learn about control groups. What kinds of resources can be controlled? How do you create and destroy control groups? How do you put processes in them? Same thing for namespaces. How do they work? What can a process see from its perspective inside a process namespace? If you grok all that, then you are ready to grok the K8s Container Runtime Interface. And, if you really grokked it, you understand that Docker is besides the point, isolation and namespaces are optional, and so forth. All k8s demands from the "container runtime" is that a thing has a name and a defined lifecycle. Once you understand how k8s works at the pod and node level then it should be perfectly obvious how it works at higher levels. That's why I really want to see someone write the bottom-up guide!