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

Summary

This chapter detailed how Kubernetes identifies users and what groups their members are in. We detailed how the API server interacts with identities and explored several options for authentication. Finally, we detailed the OpenID Connect protocol and how it's applied to Kubernetes.

Learning how Kubernetes authenticates users and the details of the OpenID Connect protocol are an important part of building security into a cluster. Understanding the details and how they apply to common enterprise requirements will help you decide the best way to authenticate to clusters, and also provide justification regarding why the anti-patterns we explored should be avoided.

In the next chapter, we'll apply our authentication process to authorizing access to Kubernetes resources. Knowing who someone is isn't enough to secure your clusters. You also need to control what they have access to.

Questions

  1. OpenID Connect is a standard protocol with extensive peer...