Kubernetes – An Enterprise Guide: Effectively containerize applications, integrate enterprise systems, and scale applications in your enterprise , Second Edition

Marc Boorshtein

Scott Surovich

€36.99

4.6 (35 Ratings)

Paperback Dec 2021 578 pages 2nd Edition

Marc Boorshtein

Scott Surovich

€36.99

4.6 (35 Ratings)

Paperback Dec 2021 578 pages 2nd Edition

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Kubernetes – An Enterprise Guide

Deploying Kubernetes Using KinD

One of the largest obstacles to learning Kubernetes is having enough resources to create a cluster for testing or development. Like most IT professionals, we like to have a Kubernetes cluster on our laptops for demonstrations and for testing products in general.

Often, you may have a need to run a multiple node cluster, or multiple clusters for a complex demonstration or testing, such as a multi-cluster service mesh. These scenarios would require multiple servers to create the necessary clusters, which, in turn, would require a lot of RAM and a hypervisor.

To do full testing on a multiple cluster scenario, you would need to create multiple nodes for each cluster. If you created the clusters using virtual machines, you would need to have enough resources to run the virtual machines. Each of the machines would have an overhead including disk space, memory, and CPU utilization.

But what if you could create a cluster using just containers? Using...

Installing KinD

The files for this chapter are located in the KinD directory. You can use the provided files, or you can create your own files from this chapter's content. We will explain each step of the installation process in this section.

At the time of writing, the current version of KinD is 0.11.0, supporting Kubernetes clusters up to 1.21.1

Installing KinD – prerequisites

KinD can be installed using a few different methods, but the easiest and quickest way to start building KinD clusters is to download the KinD binary and the standard Kubernetes kubectl executable to interact with the cluster.

Installing kubectl

Since KinD is a single executable, it does not install kubectl. If you do not have kubectl installed and you are using an Ubuntu 20.04 system, you can install it by running snap install, or you may download it from Google directly.

To install kubectl using snap, you only need to run a single command:

sudo snap install...

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Key benefits

Extensively revised edition to cover the latest updates and new releases along with two new chapters to introduce Istio
Get a firm command of Kubernetes from a dual perspective of an admin as well as a developer
Understand advanced topics including load balancing, externalDNS, global load balancing, authentication integration, policy, security, auditing, backup, Istio and CI/CD

Description

Kubernetes has taken the world by storm, becoming the standard infrastructure for DevOps teams to develop, test, and run applications. With significant updates in each chapter, this revised edition will help you acquire the knowledge and tools required to integrate Kubernetes clusters in an enterprise environment. The book introduces you to Docker and Kubernetes fundamentals, including a review of basic Kubernetes objects. You’ll get to grips with containerization and understand its core functionalities such as creating ephemeral multinode clusters using KinD. The book has replaced PodSecurityPolicies (PSP) with OPA/Gatekeeper for PSP-like enforcement. You’ll integrate your container into a cloud platform and tools including MetalLB, externalDNS, OpenID connect (OIDC), Open Policy Agent (OPA), Falco, and Velero. After learning to deploy your core cluster, you’ll learn how to deploy Istio and how to deploy both monolithic applications and microservices into your service mesh. Finally, you will discover how to deploy an entire GitOps platform to Kubernetes using continuous integration and continuous delivery (CI/CD).

Who is this book for?

This book is for anyone interested in DevOps, containerization, and going beyond basic Kubernetes cluster deployments. DevOps engineers, developers, and system administrators looking to enhance their IT career paths will also find this book helpful. Although some prior experience with Docker and Kubernetes is recommended, this book includes a Kubernetes bootcamp that provides a description of Kubernetes objects to help you if you are new to the topic or need a refresher.

What you will learn

Create a multinode Kubernetes cluster using KinD
Implement Ingress, MetalLB, ExternalDNS, and the new sandbox project, K8GBConfigure a cluster OIDC and impersonation
Deploy a monolithic application in Istio service mesh
Map enterprise authorization to Kubernetes
Secure clusters using OPA and GateKeeper
Enhance auditing using Falco and ECK
Back up your workload for disaster recovery and cluster migration
Deploy to a GitOps platform using Tekton, GitLab, and ArgoCD

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Amazon verified reviews

Alexl Jul 14, 2022

Kubernetes – An Enterprise Guide provides an in-depth exploration and architecture review of common concerns when it comes to deploying and running Kubernetes. The authors explore topics, such routing and deploying L4 and L7 load balancers, RBAC, OIDC, Istio, and many others.I liked the depth of a lot of topics, such as exploring Istio from the Kubernetes' point of view, as well as from the application concerns. The book provides concrete steps for deploying and testing explored concepts on a local Kubernetes cluster (KinD).The authors provide an opinionated approach to the architecture. Since Marc Boorshtein is involved with the company behind OpenUnison, it is understandable that OpenUnison gets featured in the book prominently. It is up to the reader to decide whether to accept such architecture or not; the underlying concepts, however, are explained quite well and are applicable to different OIDC providers as well.The book deals with a fast-moving tech stack, so the instructional steps can get obsolete fairly quickly. Consequently, readers might have to do a bit of their own troubleshooting when it comes to deploying various parts of the Kubernetes stack.I would recommend the book to readers that are looking to deepen their experience with Kubernetes (at least at the level of CKA would be my recommendation). It is definitely worth the read, provided you do not mind the opinionated approach.

Amazon Verified review

Pratik Dave Sep 05, 2022

This is one of the excellent books that I come across to learn Kubernetes basics and advance. The book covers wide range of topics that start with Docker and containers to RBAC , GitOps, Service mesh. Author explains each section in detail and it has been nicely divided in each chapters. The way advanced topics of Kubernetes are explained with example, it made easy to understand for anyone.I would really recommend this book not only who are new to the Kubernetes but it is also a good reference book for seasoned players.

Bhanu Addanki Apr 21, 2022

Thanks to the authors for this book. Getting started with K8s with a book like this is a great step. I found this book very Worthy and informative. I always used to be distracted while using YouTube for learning. This book solves my problem.

Jeffrey Chilberto Jul 14, 2022

Thanks to the authors. This comprehensive book on Kubernetes came at the right time.This book starts with the basics and continues to build and build and build. I appreciate the pacing as there is a lot of information covered, and the authors did a great job of not skimming over content. For example, Kubernetes resources are covered thoroughly. I have experienced some books that tend to end up providing nothing more than a list or a repeat of the help content.I would recommend this to those wanting to start using K8s and those with a moderate amount of experience. The scope is huge but all major aspects of hosting a K8s solution are covered from basic operation to networking and security to more complex scenarios using a service mesh. I also found this guide helpful for a PaaS Kubernetes offering (Azure Kubernetes Service).

Aman Gupta May 10, 2022

The chronology of chapters in this book has been set strategically to increase the complexity as I proceed. The best thing I liked about the book is no alien term is left unexplained. You don't need to google or refer any external material to understand the concepts described in this book.

Kubernetes – An Enterprise Guide: Effectively containerize applications, integrate enterprise systems, and scale applications in your enterprise , Second Edition

What do you get with Print?

Kubernetes – An Enterprise Guide

Deploying Kubernetes Using KinD

Technical requirements

Introducing Kubernetes components and objects

Interacting with a cluster

Using development clusters

Installing KinD

Installing KinD – prerequisites

Installing kubectl

Creating a KinD cluster

Creating a simple cluster

Reviewing your KinD cluster

KinD storage objects

Adding a custom load balancer for Ingress

Summary

Questions

Join our book's Discord space

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Kubernetes – An Enterprise Guide: Effectively containerize applications, integrate enterprise systems, and scale applications in your enterprise , Second Edition

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