Book Image

Kubernetes and Docker - An Enterprise Guide

By : Scott Surovich, Marc Boorshtein
Book Image

Kubernetes and Docker - An Enterprise Guide

By: Scott Surovich, Marc Boorshtein

Overview of this book

Containerization has changed the DevOps game completely, with Docker and Kubernetes playing important roles in altering the flow of app creation and deployment. This book will help you acquire the knowledge and tools required to integrate Kubernetes clusters in an enterprise environment. The book begins by introducing you to Docker and Kubernetes fundamentals, including a review of basic Kubernetes objects. You’ll then get to grips with containerization and understand its core functionalities, including how to create ephemeral multinode clusters using kind. As you make progress, you’ll learn about cluster architecture, Kubernetes cluster deployment, and cluster management, and get started with application deployment. Moving on, you’ll find out how to integrate your container to a cloud platform and integrate tools including MetalLB, externalDNS, OpenID connect (OIDC), pod security policies (PSPs), Open Policy Agent (OPA), Falco, and Velero. Finally, you will discover how to deploy an entire platform to the cloud using continuous integration and continuous delivery (CI/CD). By the end of this Kubernetes book, you will have learned how to create development clusters for testing applications and Kubernetes components, and be able to secure and audit a cluster by implementing various open-source solutions including OpenUnison, OPA, Falco, Kibana, and Velero.
Table of Contents (20 chapters)
1
Section 1: Docker and Container Fundamentals
5
Section 2: Creating Kubernetes Development Clusters, Understanding objects, and Exposing Services
9
Section 3: Running Kubernetes in the Enterprise

Chapter 5: Kubernetes Bootcamp

We are sure that many of you have used Kubernetes in some capacity—you may have clusters running in production or you may have kicked the tires using kubeadm, Minikube, or Docker Desktop. Our goal for this book is to go beyond the basics of Kubernetes and, as such, we didn't want to rehash all of the basics of Kubernetes. Instead, we added this chapter as a bootcamp for anyone that may be new to Kubernetes or might have only played around with it a bit.

Since it is a bootcamp chapter we will not get in-depth on every topic, but by the end, you should know enough about the basics of Kubernetes to understand the remaining chapters. If you have a strong Kubernetes background, you may still find this chapter useful as a refresher, and we will get into more complex topics starting in Chapter 6, Services, Load Balancing, and External DNS.

In this chapter, we will cover the components of a running Kubernetes cluster, which include the control...