You're reading from Kubernetes and Docker - An Enterprise Guide Effectively containerize applications, integrate enterprise systems, and scale applications in your enterprise

Product type Paperback

Published in Nov 2020

Publisher Packt

ISBN-13 9781839213403

Length 526 pages

Edition 1st Edition

Tools

Docker

Concepts

Cloud Computing

Authors (2):

Marc Boorshtein

Scott Surovich

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Table of Contents (20) Chapters

Preface

1. Section 1: Docker and Container Fundamentals

2. Chapter 1: Docker and Container Essentials FREE CHAPTER

3. Chapter 2: Working with Docker Data

4. Chapter 3: Understanding Docker Networking

5. Section 2: Creating Kubernetes Development Clusters, Understanding objects, and Exposing Services

6. Chapter 4: Deploying Kubernetes Using KinD

7. Chapter 5: Kubernetes Bootcamp

8. Chapter 6: Services, Load Balancing, and External DNS

9. Section 3: Running Kubernetes in the Enterprise

10. Chapter 7: Integrating Authentication into Your Cluster

11. Chapter 8: RBAC Policies and Auditing

12. Chapter 9: Deploying a Secured Kubernetes Dashboard

13. Chapter 10: Creating PodSecurityPolicies

14. Chapter 11: Extending Security Using Open Policy Agent

15. Chapter 12: Auditing using Falco and EFK

16. Chapter 13: Backing Up Workloads

17. Chapter 14: Provisioning a Platform

18. Assessments

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Exploring the control plane

As its name suggests, the control plane controls every aspect of a cluster. If your control plane goes down, you can probably imagine that your cluster will encounter issues. Without a control plane, a cluster will not have any scheduling abilities, which means that workloads that are running will remain running unless they are stopped and restarted. Since the control plane is extremely important, it is always suggested that you have at least three master nodes. Many production installations run more than three master nodes, but the number of installed nodes should always be an odd number. Let's look at why the control plane and its components are so vital to a running cluster by examining each one.

The Kubernetes API server

The first component to understand in a cluster is the kube-apiserver component. Since Kubernetes is application programming interface (API)-driven, every request that comes into a cluster goes through the API server. Let&apos...