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

Questions

  1. What Istio object(s) is used to route traffic between multiple versions of an application?
    1. Ingress rule
    2. VirtualService
    3. DestinationRule
    4. You can't route to multiple versions, only a single instance

    Answer: b and c

  2. What tool(s) are required to provide observability in the service mesh?
    1. Prometheus
    2. Jaeger
    3. Kiali
    4. Kubernetes dashboard

    Answer: a and c

  3. True or false: Istio features require developers to change their code to leverage features like mutual TLS and authorization.
    1. True
    2. False

    Answer: False

  4. Istio made the control plane easier to deploy and configure by merging multiple components into a single executable called:
    1. Istio
    2. IstioC
    3. istiod
    4. Pilot

    Answer: c. istiod

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