You're reading from Modern DevOps Practices Implement, secure, and manage applications on the public cloud by leveraging cutting-edge tools

Product type Paperback

Published in Jan 2024

Publisher Packt

ISBN-13 9781805121824

Length 568 pages

Edition 2nd Edition

Languages

Python

Tools

Ansible

Concepts

DevOps

Author (1):

Gaurav Agarwal

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Table of Contents (24) Chapters

Preface

1. Part 1:Modern DevOps Fundamentals

2. Chapter 1: The Modern Way of DevOps FREE CHAPTER

3. Chapter 2: Source Code Management with Git and GitOps

4. Chapter 3: Containerization with Docker

5. Chapter 4: Creating and Managing Container Images

6. Part 2:Container Orchestration and Serverless

7. Chapter 5: Container Orchestration with Kubernetes

8. Chapter 6: Managing Advanced Kubernetes Resources

9. Chapter 7: Containers as a Service (CaaS) and Serverless Computing for Containers

10. Part 3:Managing Config and Infrastructure

11. Chapter 8: Infrastructure as Code (IaC) with Terraform

12. Chapter 9: Configuration Management with Ansible

13. Chapter 10: Immutable Infrastructure with Packer

14. Part 4:Delivering Applications with GitOps

15. Chapter 11: Continuous Integration with GitHub Actions and Jenkins

16. Chapter 12: Continuous Deployment/Delivery with Argo CD

17. Chapter 13: Securing and Testing Your CI/CD Pipeline

18. Part 5:Operating Applications in Production

19. Chapter 14: Understanding Key Performance Indicators (KPIs) for Your Production Service

20. Chapter 15: Implementing Traffic Management, Security, and Observability with Istio

21. Index

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22. Other Books You May Enjoy

Appendix: The Role of AI in DevOps

Revisiting the Blog App

Since we discussed the Blog App previously, let’s look at the services and their interactions again:

Figure 15.1 – The Blog App and its services and interactions

So far, we’ve created CI and CD pipelines for building, testing, and pushing our Blog App microservices containers using GitHub Actions, deploying them using Argo CD in a GKE cluster.

As you may recall, we created the following resources for the application to run seamlessly:

MongoDB: We deployed an auth-enabled MongoDB database with root credentials. The credentials were injected via environment variables sourced from a Kubernetes Secret resource. To persist our database data, we created a PersistentVolume mounted to the container, which we provisioned dynamically using a PersistentVolumeClaim. As the container is stateful, we used a StatefulSet to manage it and, therefore, a headless Service to expose the database.
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