You're reading from Cracking the Kubernetes Interview Discover expert tips and best practices to ace your Kubernetes technical interviews

Product type Paperback

Published in Oct 2025

Publisher Packt

ISBN-13 9781835460030

Length 560 pages

Edition 1st Edition

Tools

Kubernetes

Concepts

DevOps

Authors (2):

Viktor Vedmich

Alexander Dovnar

View More author details

Table of Contents (27) Chapters

Preface

1. Part 1: Introduction to Kubernetes

2. Understanding Kubernetes from Containers to Orchestration FREE CHAPTER

3. Kubernetes Key Components and Their Functions

4. Part 2: Schedulers, Workloads, and Scaling

5. Exploring Kubernetes Basics

6. Principles of Scaling: Horizontal vs Vertical

7. Autoscaling in Action

8. Part 3: Networking, Services, and Security

9. Essentials of Kubernetes Networking

10. Kubernetes Network Architecture: Services and Ingresses

11. Storage: Persistence and CSI Drivers

12. Security Best Practices in Kubernetes and RBAC

13. Part 4: Deployment, Application Management, and GitOps

14. Real-World Deployment Scenarios and Continuous Deployment

15. Understanding GitOps: Principles and Practices

16. Part 5: Reliability, Monitoring, and Maintenance

17. Custom Resource Definitions and Operators

18. Ensuring High Availability and Reliability

19. Monitoring Best Practices

20. Backup, Maintenance, and Disaster Recovery in Kubernetes

21. Part 6: Troubleshooting and Best Practices

22. Real-World Troubleshooting Scenarios

23. Common Mistakes and How to Avoid Them

24. Interview Stories from Authors

25. Other Books You May Enjoy

26. Index

Summary

In this chapter, we explored GitOps and its implementation using Argo CD. We started by understanding the core principles of GitOps, including declarative infrastructure, version control, automated deployments, and continuous reconciliation. These principles improve the predictability, security, and efficiency of managing Kubernetes environments.

Argo CD plays a crucial role in integrating GitOps practices with Kubernetes. We examined its architecture, focusing on the application controller, Repository Server, and API server, and how they work together to maintain the desired state of applications as defined in Git repositories.

Key concepts such as live state, target state, refresh, and sync processes were discussed, providing a foundation for effectively utilizing Argo CD. We also highlighted Argo CD’s features, including support for multiple configuration management tools, SSO integration, RBAC, and multi-cluster deployments.

Practical use cases demonstrated...