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

Summary

This chapter's focus was on RBAC policy creation and debugging. We explored how Kubernetes defines authorization policies and how it applies those policies to enterprise users. We also looked at how these policies can be used to enable multi-tenancy in your cluster. Finally, we enabled the audit log in our KinD cluster and learned how to use the audit2rbac tool to debug RBAC issues.

Using Kubernetes' built-in RBAC policy management objects lets you enable access that's needed for operational and development tasks in your clusters. Knowing how to design policies can help limit the impact of issues, providing the confidence to let users do more on their own.

In the next chapter, Chapter 7, Deploying a Secured Kubernetes Dashboard, we'll be learning about how to secure the Kubernetes dashboard, as well as how to approach security for other infrastructure applications that make up your cluster. You'll learn how to apply what we've learned...