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. True or false – Velero can only use an S3 target to store backup jobs.

    A. True

    B. False

  2. If you do not have an object storage solution, how can you provide an S3 target using a backend storage solution such as NFS?

    A. You can't – there is no way to add anything in front of NFS to present S3.

    B. Kubernetes can do this using native CSI features.

    C. Install MinIO and use the NFS volumes as persistent disks in the deployment.

    D. You don't need to use an object store; you can use NFS directly with Velero.

  3. True or false – Velero backups can only be restored on the same cluster where the backup was originally created.

    A. True

    B. False

  4. What utility can you use to create an etcd backup?

    A. Velero.

    B. MinIO.

    C. There is no reason to back up the etcd database.

    D. etcdctl.

  5. Which command will create a scheduled backup that runs every day at 3 a.m.?

    A. velero create backup daily-backup

    B. velero create @daily backup daily-backup

    C. velero create backup...