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)
19
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20
Index

Utilizing Service Meshes

In the previous chapter, we looked at monitoring and observability. One of the obstacles to a comprehensive monitoring story is that it requires a lot of changes to the code that are orthogonal to the business logic.

In this chapter, we will learn how service meshes allow you to externalize many of those cross-cutting concerns from the application code. The service mesh is a true paradigm shift in the way you design, evolve, and operate distributed systems on Kubernetes. I like to think of it as aspect-oriented programming for cloud-native distributed systems. We will also take a deeper look into the Istio service mesh. The topics we will cover are:

  • What is a service mesh?
  • Choosing a service mesh
  • Understanding Istio architecture
  • Incorporating Istio into your Kubernetes cluster
  • Working with Istio

Let’s jump right in.