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

Integrating the dashboard with OpenUnison

The topic of how OpenUnison injected identity headers using impersonation was covered in Chapter 5, Integrating Authentication into Your Cluster, but not how OpenUnison injected user's identity into the dashboard with an OpenID Connect integrated cluster. It worked, but it wasn't explained. This section will use the OpenUnison implementation as an example of how to build a reverse proxy for the dashboard. Use the information in this section to get a better understanding of API security or to build your own solution for dashboard authentication.

The OpenUnison deployment comprises two integrated applications:

  • The OpenID Connect Identity Provider & Login Portal: This application hosts the login process and the discovery URLs used by the API server to get the keys needed to validate an id_token. It also hosts the screens where you can obtain your token for kubectl.
  • The dashboard: A reverse proxy application...