Book Image

Mastering Kubernetes - Fourth Edition

By : Gigi Sayfan
3.3 (3)
Book Image

Mastering Kubernetes - Fourth Edition

3.3 (3)
By: Gigi Sayfan

Overview of this book

The fourth edition of the bestseller Mastering Kubernetes includes the most recent tools and code to enable you to learn the latest features of Kubernetes 1.25. This book contains a thorough exploration of complex concepts and best practices to help you master the skills of designing and deploying large-scale distributed systems on Kubernetes clusters. You’ll learn how to run complex stateless and stateful microservices on Kubernetes, including advanced features such as horizontal pod autoscaling, rolling updates, resource quotas, and persistent storage backends. In addition, you’ll understand how to utilize serverless computing and service meshes. Further, two new chapters have been added. “Governing Kubernetes” covers the problem of policy management, how admission control addresses it, and how policy engines provide a powerful governance solution. “Running Kubernetes in Production” shows you what it takes to run Kubernetes at scale across multiple cloud providers, multiple geographical regions, and multiple clusters, and it also explains how to handle topics such as upgrades, capacity planning, dealing with cloud provider limits/quotas, and cost management. By the end of this Kubernetes book, you’ll have a strong understanding of, and hands-on experience with, a wide range of Kubernetes capabilities.
Table of Contents (21 chapters)
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Index

The history of cluster federation in Kubernetes

In the previous editions of the book, we discussed Kubernetes Cluster Federation as a solution to managing multiple Kubernetes clusters as a single conceptual cluster. Unfortunately, this project has been inactive since 2019, and the Kubernetes multi-cluster Special Interest Group (SIG) is considering archiving it. Before we describe more modern approaches let’s get some historical context. It’s funny to talk about the history of a project like Kubernetes that didn’t even exist before 2014, but the pace of development and the large number of contributors took Kubernetes through an accelerated evolution. This is especially relevant for the Kubernetes Federation.

In March 2015, the first revision of the Kubernetes Cluster Federation proposal was published. It was fondly nicknamed “Ubernetes” back then. The basic idea was to reuse the existing Kubernetes APIs to manage multiple clusters. This proposal...