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

Upgrading Kubernetes

Upgrading Kubernetes can be a very stressful operation. A hasty upgrade might remove support for resource versions, and if you have unsupported resources deployed, you will encounter catastrophic failures. Using Managed Kubernetes has its pros and cons. When it comes to upgrades, there is, at any point in time, a range of supported versions.

You may upgrade to more recent supported versions. However, if you delay and neglect to upgrade, then the cloud provider will upgrade your clusters and node pools automatically once you fall behind the cutting edge of supported versions. Let’s look at the various elements of upgrading Kubernetes you must be on top of.

Know the lifecycle of your cloud provider

Cloud providers can’t support just any Kubernetes version in existence. It is critical to know when the current version of your clusters and node pools is going to be defunct. All cloud providers have a methodical process and share the information...