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

In this chapter, we introduced you to the service mesh world, using the popular open-source project Istio. In the first section of the chapter, we explained some of the advantages of using a service mesh, which included security and observability for mesh services.

The second section of the chapter detailed the installation of Istio and the different installation profiles that are available. We deployed Istio into our KinD clusters and we also removed NGNIX to free up ports 80 and 443 to be used by Istio's ingress gateway. This section also included the objects that are added to a cluster once you deploy Istio. We covered the most common objects using example manifests that reinforce how to use each object in your own deployments.

To close out the chapter, we detailed how to install Kiali, Prometheus, and Jaeger to provide powerful observability in our service mesh. We also explained how to use Kiali to look into an application in the mesh to view the application...