https://www.pluralsight.com/courses/kubernetes-clusters-building-highly-available

This course will teach you about the internal components of Kubernetes by manually setting up a highly available cluster using kubeadm.

Many Kubernetes professionals have only ever worked with managed Kubernetes services, such as AKS and EKS. Believe it or not, these have missed the true fun! Truly understanding how Kubernetes’ components come together, demands that you – at least once – experiment setting up a cluster by hand. It’s easier than you think, and this course will teach just that. In this course, Building Highly Available Kubernetes Clusters, you’ll learn how to set up a full HA cluster: etcd, master, and workers. First, you’ll see and understand how the various components work together. Next, you'll discover how some of the most important concepts, such as networking and services operate in the background. Finally, you’ll learn how to troubleshoot some basic failure scenarios. By the time you finish this course you’ll have a better understanding about what constitutes a Kubernetes cluster, and how Kubernetes internal components work together.