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You're reading from Hands-On Docker for Microservices with Python Design, deploy, and operate a complex system with multiple microservices using Docker and Kubernetes

Product type Paperback

Published in Nov 2019

Publisher Packt

ISBN-13 9781838823818

Length 408 pages

Edition 1st Edition

Languages

Python

Tools

Docker

Concepts

Design

Author (1):

Jaime Buelta

View More author details

Table of Contents (19) Chapters

Preface

1. Section 1: Introduction to Microservices

2. Making the Move – Design, Plan, and Execute FREE CHAPTER

3. Section 2: Designing and Operating a Single Service – Creating a Docker Container

4. Creating a REST Service with Python

5. Build, Run, and Test Your Service Using Docker

6. Creating a Pipeline and Workflow

7. Section 3:Working with Multiple Services – Operating the System through Kubernetes

8. Using Kubernetes to Coordinate Microservices

9. Local Development with Kubernetes

10. Configuring and Securing the Production System

11. Using GitOps Principles

12. Managing Workflows

13. Section 4: Production-Ready System – Making It Work in Real-Life Environments

14. Monitoring Logs and Metrics

15. Handling Change, Dependencies, and Secrets in the System

16. Collaborating and Communicating across Teams

17. Assessments

18. Other Books You May Enjoy

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Using GitOps Principles

After seeing how to configure a Kubernetes cluster, we will learn how to do it using GitOps practices instead of applying manual commands and files. GitOps means managing the cluster configuration using a Git repo to store and track the YAML files that contain the configuration. We will see how to link a GitHub repo with a cluster, so that it gets updated regularly, using Flux.

This method allows us to store the configuration in a deterministic way, describing the changes to infrastructure in code. The changes can be reviewed and the cluster can be recovered from scratch or duplicated, as we will see in Chapter 9, Managing Workflows.

The following topics will be covered in this chapter:

Understanding the description of GitOps
Setting up Flux to control the Kubernetes cluster
Configuring GitHub
Making a Kubernetes cluster change through GitHub
Working in...

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Authors (1)

Jaime Buelta

Jaime Buelta is a Software Architect who has been a professional programmer since 2002 and a Python enthusiast since 2010. He has developed software for a variety of fields, focusing, in the last 10 years, on developing web services in Python in the gaming, finance and education industries. He is a strong proponent of automating everything to make computers do most of the heavy lifting, so humans can focus on the important stuff. He published his first book, "Python Automation Cookbook", in 2018 (recently with an extended second edition), followed a year later by "Hands-On Docker for Microservices with Python" describing how to migrate to a microservice architecture. He is currently living in Dublin, Ireland, and is a regular speaker at PyCon Ireland.

See other products by Jaime Buelta