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

Understanding serverless computing

OK. Let’s get it out of the way. Servers are still there. The term “serverless” means that you don’t have to provision, configure, and manage the servers yourself. Public cloud platforms were a real paradigm shift by eliminating the need to deal with physical hardware, data centers, and networking. But even on the cloud it takes a lot of work and know-how to create machine images, provision instances, configure them, upgrade and patch operating systems, define network policies, and manage certificates and access control. With serverless computing large chunks of this important but tedious work go away. The allure of serverless is multi-pronged:

  • A whole category of problems dealing with provisioning goes away
  • Capacity planning is a non-issue
  • You pay only for what you use

You lose some control because you have to live with the choices made by the cloud provider, but there is a lot of customization...