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

Chapter 7

  1. Correct answer: (A) True. OpenID Connect is a standard published by IETF:
  2. Correct answer: (B) id_token. id_token contains claims about the user's identity. refresh_token is used to get a new id_token. access_token is used to interact with the identity provider. certificate_token doesn't exist.
  3. Correct answer: (C) Break-glass-in-case-of-emergency when all other authentication solutions are unavailable. Remember to keep this certificate and key pair under strict controls.
  4. Correct answer: (D) An immutable ID not based on a user's name. This way, if a user's name ever changes, which happens more often than may be expected, their access isn't changed.
  5. Correct answer: (D) Set as flags on the Kubernetes API server executable. How you set the flags will depend on your distribution, but ultimately, every distribution sets these flags on the API server's command.
  6. Correct answer...