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 Helm

Kubernetes provides many ways to organize and orchestrate your containers at runtime, but it lacks a higher-level organization of grouping sets of images together. This is where Helm comes in. In this section, we’ll go over the motivation for Helm, its architecture, and its components. We will discuss Helm 3. You might still find Helm 2 in the wild, but its end of life was at the end of 2020.

As you might recall, Kubernetes means helmsman or navigator in Greek. The Helm project took the nautical theme very seriously, as the project’s name implies. The main Helm concept is the chart. Just as nautical charts describe in detail an area in the sea or a coastal region, a Helm chart describes in detail all the parts of an application.

Helm is designed to perform the following:

  • Build charts from the ground up
  • Bundle charts into archive files (.tgz)
  • Interact with repositories containing charts
  • Deploy and remove charts in...