Book Image

The Kubernetes Workshop

By : Zachary Arnold, Sahil Dua, Wei Huang, Faisal Masood, Mélony Qin, Mohammed Abu Taleb
5 (1)
Book Image

The Kubernetes Workshop

5 (1)
By: Zachary Arnold, Sahil Dua, Wei Huang, Faisal Masood, Mélony Qin, Mohammed Abu Taleb

Overview of this book

Thanks to its extensive support for managing hundreds of containers that run cloud-native applications, Kubernetes is the most popular open source container orchestration platform that makes cluster management easy. This workshop adopts a practical approach to get you acquainted with the Kubernetes environment and its applications. Starting with an introduction to the fundamentals of Kubernetes, you’ll install and set up your Kubernetes environment. You’ll understand how to write YAML files and deploy your first simple web application container using Pod. You’ll then assign human-friendly names to Pods, explore various Kubernetes entities and functions, and discover when to use them. As you work through the chapters, this Kubernetes book will show you how you can make full-scale use of Kubernetes by applying a variety of techniques for designing components and deploying clusters. You’ll also get to grips with security policies for limiting access to certain functions inside the cluster. Toward the end of the book, you’ll get a rundown of Kubernetes advanced features for building your own controller and upgrading to a Kubernetes cluster without downtime. By the end of this workshop, you’ll be able to manage containers and run cloud-based applications efficiently using Kubernetes.
Table of Contents (20 chapters)
Preface

Summary

In this chapter, you have learned that keeping your Kubernetes platform up to date is very important when it comes to providing a secure and reliable foundation for running your applications. In this fast-moving digital world, many businesses rely on critical applications and keeping them available, even though upgrading the underlying platform is important.

You have seen that a no-downtime upgrade of the platform is possible if you have set up the cluster in a high availability configuration to start with. However, the platform does not guarantee the availability of your applications unless you have designed and deployed your application in a fault-tolerant manner. One factor is to make sure that you have multiple instances of your application running and that the application is designed to handle the termination of these instances gracefully.

With that taken into account, we have seen the important considerations for upgrading your cluster in a way that the platform...