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

Deploying an application into the service mesh

We could define the components and objects of Istio all day, but if you are like us, examples and use-cases are often more beneficial to understanding advanced concepts like the features provided by Istio. In this section, we will explain many of the custom resources in detail, providing examples that you can deploy in your KinD cluster.

Deploying your first application into the mesh

Finally! We have Istio and the add-on components installed and we can move on to installing a real application in the service mesh to verify everything is working.

For this section, we will deploy an example application from Google called the Boutique app. In the next chapter, we will deploy a different application and explain all of the details and communication between the services, but the Boutique app is a great application to test out the mesh before we get into that level of information.

To deploy Google's Boutique app, execute...