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Kubernetes and Docker - An Enterprise Guide

Kubernetes and Docker - An Enterprise Guide

By : Scott Surovich, Marc Boorshtein
4.6 (13)
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Kubernetes and Docker - An Enterprise Guide

Kubernetes and Docker - An Enterprise Guide

4.6 (13)
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)
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1
Section 1: Docker and Container Fundamentals
5
Section 2: Creating Kubernetes Development Clusters, Understanding objects, and Exposing Services
9
Section 3: Running Kubernetes in the Enterprise

How does the dashboard know who you are?

The Kubernetes Dashboard is a powerful web application for quickly accessing your cluster from inside a browser. It lets you browse your namespaces and view the status of nodes, and even provides a shell you can use to access Pods directly. There is a fundamental difference between using the dashboard and kubectl. The dashboard, being a web application, needs to manage your session, whereas kubectl does not. This leads to a different set of security issues during deployment that are often not accounted for, leading to severe consequences. In this section, we'll explore how the dashboard identifies users and interacts with the API server.

Dashboard architecture

Before diving into the specifics of how the dashboard authenticates a user, it's important to understand the basics of how the dashboard works. The dashboard at a high level has three layers:

  • User Interface: This is the Angular + HTML frontend that is displayed...
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