Book Image

The Kubernetes Workshop

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

The Kubernetes Workshop

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 an earlier chapter of this book, we explored how Kubernetes works favorably with a declarative approach to application management; that is, you define your desired state and let Kubernetes take care of the rest. Throughout this chapter, we took a look at some tools that help us manage our cloud infrastructure in a similar way. We introduced Terraform as a tool that can help us manage the state of our infrastructure and introduced the idea of treating your infrastructure as code.

We then created a mostly secure, production-ready Kubernetes cluster using Terraform in Amazon EKS. We took a look at the Ingress object and learned about the major motivations for using it, as well as the various advantages that it provides. Then, we deployed two versions of an application on a highly available Kubernetes cluster and explored some concepts that allow us to improve at horizontally scaling stateful applications. This gave us a glimpse of the challenges that come with running stateful...