0

Explore Products

Best Sellers

New Releases

Books

Videos

Audiobooks

Free Learning

The Kubernetes Book

You're reading from The Kubernetes Book The fastest way to get your head around Kubernetes

Product type Hardcover

Published in Jul 2024

Publisher

ISBN-13 9781835880302

Length 330 pages

Edition 1st Edition

Tools

Docker

Concepts

Containerization

Authors (2):

Nigel Poulton

Pushkar Joglekar

View More author details

Table of Contents (21) Chapters

1. 0: Preface FREE CHAPTER

2. 1: Kubernetes primer

3. 2: Kubernetes principles of operation

4. 3: Getting Kubernetes

5. 4: Working with Pods

6. 5: Virtual clusters with Namespaces

7. 6: Kubernetes Deployments

8. 7: Kubernetes Services

9. 8: Ingress

10. 9: WebAssembly on Kubernetes

11. 10: Service discovery deep dive

12. 11: Kubernetes storage

13. 12: ConfigMaps and Secrets

14. 13: StatefulSets

15. 14: API security and RBAC

16. 15: The Kubernetes API

17. 16: Threat modeling Kubernetes

18. 17: Real-world Kubernetes security

19. Terminology

20. Outro

21. More from the author

Perform a rollback

As previously mentioned, Kubernetes keeps old ReplicaSets as a documented revision history and an easy way to roll back. The following command shows the history of the Deployment with two revisions.

$ kubectl rollout history deployment hello-deploy
deployment.apps/hello-deploy
REVISION  CHANGE-CAUSE
1         <none>
2         <none>

Revision 1 was the initial release based on the 1.0 image. Revision 2 is the rollout that just updated the Pods to run version 2.0 of the image.

The following command shows the two ReplicaSets associated with each of the revisions.

$ kubectl get rs
NAME                      DESIRED   CURRENT   READY   AGE
hello-deploy-5f84c5b7b7   10        10        10      27m
hello-deploy-54f5d46964   0         0         0       93m

The next kubectl describe command runs against the old ReplicaSet and proves its configuration still references the old image version. The output is trimmed to fit the book, and your ReplicaSets...

The rest of the chapter is locked

Visually different images

CONTINUE READING

83

Tech Concepts

36

Programming languages

73

Tech Tools

Unlimited access to the largest independent learning library in tech of over 8,000 expert-authored tech books and videos.

Innovative learning tools, including AI book assistants, code context explainers, and text-to-speech.

50+ new titles added per month and exclusive early access to books as they are being written.

The Kubernetes Book

Register for a free Packt account to unlock a world of extra content!

A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.

Unlock this book and the full library FREE for 7 days

Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of

Start free trial

Renews at €18.99/month. Cancel anytime

Authors (2)

Nigel Poulton

Nigel Poulton

Nigel Poulton is a cloud-native subject matter expert who spends his life creating books and training videos on the latest cloud technologies. He is the author of best-selling books on Docker and Kubernetes and the most popular online training videos on the same topic. He is a Docker Captain. Prior to this, Nigel has held various infrastructure roles for large enterprises. When he is not playing with technology, he is dreaming about it. When he is not dreaming about it, he is reading and watching sci-fi. He wishes he lived in the future so he could explore spacetime, the universe, and tons of other mind-blowing stuff. He likes cars, football (soccer), and food. He has a fabulous wife and three children.

See other products by Nigel Poulton

Pushkar Joglekar

Pushkar Joglekar

Pushkar Joglekar is currently working as a defensive security engineer at the cross-roads of containers, applied machine learning, and distributed systems. In the last few years, he has built multiple secure by design production container deployments for a Fortune 100 company. When not securing containers, he spends his time exploring neighborhood bike trails and capturing beautiful sunsets with his camera while sipping home-made masala ginger chai. He lives with his wonderful wife, who happens to be the real engineer among them.

See other products by Pushkar Joglekar

Personalised recommendations for you

Based on your interests and search pattern

Mastering PowerShell Scripting

Mastering PowerShell Scripting

PowerShell scripts provides a convenient method for automating tasks, using them proficiently can be challenging. This all-inclusive guide begins at the basics and covers advanced concepts, equipping you with tips to become an expert in PowerShell Core 7.3 scripting.

May 2024 27h 32m

Network Automation with Nautobot

Network Automation with Nautobot

This book will help you understand why a network source of truth is needed for long-term network automation success, which will in turn save you hundreds of hours in deploying and integrating Nautobot into network automation.

May 2024 27h 12m

NGINX HTTP Server

NGINX HTTP Server

Explore the power of NGINX with this guide covering an array of essential practical topics, including securing your infrastructure with automatic TLS certificates, placing NGINX in front of your existing applications, and much more.

May 2024 8h 44m

Mastering Azure Virtual Desktop

Mastering Azure Virtual Desktop

This updated edition will help you plan an Azure Virtual Desktop Architecture, implement its infrastructure, and manage its access and security. With content aligned with the exam objectives, it'll help you ace the Microsoft AZ-140 exam.

Jul 2024 23h 56m

Learn Ansible will teach you how to write Ansible Playbooks for deploying simple apps. This updated edition covers the latest Ansible features, helping you confidently implement Ansible in your daily workflows.

May 2024 13h 48m

HashiCorp Terraform Associate (003) Exam Guide

HashiCorp Terraform Associate (003) Exam Guide

This book will help you explore HashiCorp Terraform and prepare for Associate (003) certification, from understanding core concepts to advanced modules. You'll gain hands-on expertise, troubleshoot with confidence, and more.

May 2024 11h 28m

Kubernetes – An Enterprise Guide

Kubernetes – An Enterprise Guide

Navigate the complexities of Kubernetes and fully leverage its capabilities for enterprise applications. This edition dives into advanced deployments, groundbreaking techniques, and insights that will elevate your skills and redefine your expertise.

Aug 2024 22h 44m

Atlassian DevOps Toolchain Cookbook

Atlassian DevOps Toolchain Cookbook

Master setting up a DevOps toolchain using Atlassian tools and Open DevOps as a framework with this recipe-driven guide to automated testing, integration, deployment, observability, and incident management for streamlining development processes.

Jul 2024 16h 48m

AWS Certified Developer Associate Certification and Beyond

AWS Certified Developer Associate Certification and Beyond

This is your guide to passing the challenging AWS Certified Developer – Associate certification exam and setting yourself up for a rewarding career. Through a sample project, it explains how to design, architect, and implement applications on AWS.

Jul 2024 23h 40m

Implementing GitOps with Kubernetes

Implementing GitOps with Kubernetes

This book provides step-by-step tutorials and hands-on examples for effectively implementing GitOps practices in your Kubernetes deployments. You'll learn how to automate, monitor, and secure your infrastructure for efficient application delivery.

Aug 2024 14h 48m