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Argo CD in Practice

You're reading from Argo CD in Practice The GitOps way of managing cloud-native applications

Product type Paperback

Published in Nov 2022

Publisher Packt

ISBN-13 9781803233321

Length 236 pages

Edition 1st Edition

Tools

Argo CD

Concepts

Cloud Computing

Authors (2):

Costea

Spiros Economakis

View More author details

Table of Contents (15) Chapters

Preface

1. Part 1: The Fundamentals of GitOps and Argo CD

2. Chapter 1: GitOps and Kubernetes FREE CHAPTER

3. Chapter 2: Getting Started with Argo CD

4. Part 2: Argo CD as a Site Reliability Engineer

5. Chapter 3: Operating Argo CD

6. Chapter 4: Access Control

7. Part 3: Argo CD in Production

8. Chapter 5: Argo CD Bootstrap K8s Cluster

9. Chapter 6: Designing Argo CD Delivery Pipelines

10. Chapter 7: Troubleshooting Argo CD

11. Chapter 8: YAML and Kubernetes Manifests

12. Chapter 9: Future and Conclusion

13. Index

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14. Other Books You May Enjoy

Validating a Kubernetes schema

New Kubernetes versions can come with API version deprecations and removals. For example, in release 1.16 for CustomResourceDefinition, the apiextensions.k8s.io/v1 version was introduced, while in apiextensions.k8s.io/v1beta1 it was deprecated, and later, in version 1.22, it was completely removed. So, if you used apiextensions.k8s.io/v1beta1 for CustomResourceDefinitions starting with Kubernetes version 1.16, you would get a deprecation warning, while if you used it with version 1.22, you would get an error because the version doesn’t exist anymore.

Usually, the problem is not only about applying older and unsupported API versions to a Kubernetes cluster; instead, it may be more likely that you have a deprecated version already installed with some applications, after which you upgrade the cluster to a version where the API is completely removed. Normally, you should catch it while you upgrade the development or testing clusters, but there is...

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Authors (2)

Costea

Costea

Liviu Costea started as a developer in the early 2000 and his career path took him to different roles from Developer to Coding Architect and from Team Lead to CTO. In 2012 he transitioned to DevOps, when at a small company, someone had to start working on pipelines and automation because the traditional way wasn't scalable anymore. In 2018 he started with the Platform Team and then he was the Tech Lead in the Release Team at Mambu, where they designed most of the CI/CD pipelines, adopting GitOps practices. They have been live with Argo CD since 2019. More recently he joined Juni, a promising startup, where they are planning the GitOps adoption. For his contributions to OSS projects, including Argo CD, he was named CNCF Ambassador in August 2020.

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Spiros Economakis

Spiros Economakis

Spiros started as a Software Engineer in 2010 and went through a series of jobs and roles from Software Engineer, Software Architect to Head of Cloud. In 2013 founded its own startup and that was the first touch with DevOps culture and built with a small team a couple of CI/CD pipelines for a microservice architecture and mobile apps releases. After this in most of the companies involved to influence DevOps culture and automation. In 2019 started as an SRE in Lenses (acquired by Celonis) and soon influenced the organization with Kubernetes, GitOps, Cloud and transitioned to a position as Head of Cloud where he introduced GitOps across the whole company and used Argo CD for bootstrapping k8s clusters with utilities and continuous delivery applications. Now he works in an open-source company which is called Mattermost as a Senior Engineering Manager/SRE where he transformed the old GitOps approach (fluxcd) to GitOps v2.0 with Argo CD and built a scalable architecture for multi-tenancy

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