Book Image

Kubernetes – An Enterprise Guide - Second Edition

By : Marc Boorshtein, Scott Surovich
Book Image

Kubernetes – An Enterprise Guide - Second Edition

By: Marc Boorshtein, Scott Surovich

Overview of this book

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).
Table of Contents (17 chapters)
15
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16
Index

Configuring KinD for OpenID Connect

For our example deployment, we will use a scenario from our customer, FooWidgets. FooWidgets has a Kubernetes cluster that they would like integrated using OIDC. The proposed solution needs to address the following requirements:

  • Kubernetes must use our central authentication system, Active Directory
  • We need to be able to map Active Directory groups into our RBAC RoleBinding objects
  • Users need access to the Kubernetes Dashboard
  • Users need to be able to use the CLI
  • All enterprise compliance requirements must be met
  • Additional cluster management applications need to be managed centrally as well

Let's explore each of these in detail and explain how we can address the customer's requirements.

Addressing the requirements

Our enterprise's requirements require multiple moving parts, both inside and outside our cluster. We'll examine each of these components and how they relate...