Book Image

Kubernetes and Docker - An Enterprise Guide

By : Scott Surovich, Marc Boorshtein
Book Image

Kubernetes and Docker - An Enterprise Guide

By: Scott Surovich, Marc Boorshtein

Overview of this book

Containerization has changed the DevOps game completely, with Docker and Kubernetes playing important roles in altering the flow of app creation and deployment. This book will help you acquire the knowledge and tools required to integrate Kubernetes clusters in an enterprise environment. The book begins by introducing you to Docker and Kubernetes fundamentals, including a review of basic Kubernetes objects. You’ll then get to grips with containerization and understand its core functionalities, including how to create ephemeral multinode clusters using kind. As you make progress, you’ll learn about cluster architecture, Kubernetes cluster deployment, and cluster management, and get started with application deployment. Moving on, you’ll find out how to integrate your container to a cloud platform and integrate tools including MetalLB, externalDNS, OpenID connect (OIDC), pod security policies (PSPs), Open Policy Agent (OPA), Falco, and Velero. Finally, you will discover how to deploy an entire platform to the cloud using continuous integration and continuous delivery (CI/CD). By the end of this Kubernetes book, you will have learned how to create development clusters for testing applications and Kubernetes components, and be able to secure and audit a cluster by implementing various open-source solutions including OpenUnison, OPA, Falco, Kibana, and Velero.
Table of Contents (20 chapters)
Section 1: Docker and Container Fundamentals
Section 2: Creating Kubernetes Development Clusters, Understanding objects, and Exposing Services
Section 3: Running Kubernetes in the Enterprise


  1. How does a service know what pods should be used as endpoints for the service?

    A. By the service port

    B. By the namespace

    C. By the author

    D. By the selector label

  2. What kubectl command helps you to troubleshoot services that may not be working properly?

    A. kubectl get services <service name>

    B. kubectl get ep <service name>

    C. kubectl get pods <service name>

    D. kubectl get servers <service name>

  3. All Kubernetes distributions include support for services that use the LoadBalancer type.

    A. True

    B. False

  4. Which load balancer type supports all TCP/UDP ports and accepts traffic regardless of the packet's contents?

    A. Layer 7

    B. Cisco layer

    C. Layer 2

    D. Layer 4

  5. Without any added components, you can use multiple protocols using which of the following service types?

    A. NodePort and ClusterIP

    B. LoadBalancer and NodePort

    C. NodePort, LoadBalancer, and ClusterIP

    D. LoadBalancer and ClusterIP