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 7: Integrating Authentication into Your Cluster

Once a cluster has been built, users will need to interact with it securely. For most enterprises, this means authenticating individual users and making sure they can only access what they need in order to do their jobs. With Kubernetes, this can be challenging because a cluster is a collection of APIs, not an application with a frontend that can prompt for authentication.

In this chapter, you'll learn how to integrate enterprise authentication into your cluster using the OpenID Connect protocol and Kubernetes impersonation. We'll also cover several anti-patterns and explain why you should avoid using them.

In this chapter, we will cover the following topics:

  • Understanding how Kubernetes knows who you are
  • Understanding OpenID Connect
  • What are the other options?
  • Configuring KinD for OpenID Connect
  • How cloud Kubernetes knows who you are
  • Configuring your cluster for impersonation
  • ...