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Learn Helm

You're reading from Learn Helm

Product type Book

Published in Jun 2020

Publisher Packt

ISBN-13 9781839214295

Pages 344 pages

Edition 1st Edition

Languages

Concepts

Containerization

Authors (2):

Andrew Block

Austin Dewey

View More author details

Table of Contents (15) Chapters

Preface

1. Section 1: Introduction and Setup

2. Chapter 1: Understanding Kubernetes and Helm

3. Chapter 2: Preparing a Kubernetes and Helm Environment

4. Chapter 3: Installing your First Helm Chart

5. Section 2: Helm Chart Development

6. Chapter 4: Understanding Helm Charts

7. Chapter 5: Building Your First Helm Chart

8. Chapter 6: Testing Helm Charts

9. Section 3: Adanced Deployment Patterns

10. Chapter 7: Automating Helm Processes Using CI/CD and GitOps

11. Chapter 8: Using Helm with the Operator Framework

12. Chapter 9: Helm Security Considerations

13. ASSESSMENTS

14. Other Books You May Enjoy

Summary

A Helm chart is a set of files, written primarily in the YAML format, that follows a certain file structure. The Chart.yaml file is used to set chart metadata and declare dependencies. The templates/ directory is used to contain Kubernetes YAML resources that are Go-templated, allowing them to be dynamically generated. Kubernetes resources defined under the templates/ directory can also contain certain hooks to configure stages in an application's life cycle. To provide documentation to users, charts can contain the README.md and templates/NOTES.txt files and can also contain the LICENSE file to declare chart usage and distribution rights. Finally, charts can contain a .helmignore file, which is used to omit declared files from the final packaged product.

In this chapter, you learned about the structure of a Helm chart and how to configure key chart components. With the knowledge from this chapter under your belt, you now have an understanding of the basic concepts...

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Authors (2)

Andrew Block

Andrew Block is a core maintainer on the Helm project and a Distinguished Architect at Red Hat. He specializes in the use of continuous integration and continuous delivery methodologies to streamline the delivery process and incorporate security at each stage. He works with organizations to adopt and implement these technologies and concepts within their organization. As an open source enthusiast, Andrew not only has authored several publications, but he is also a contributor to several open source communities and a lead within the sigstore project, which aims at simplifying how software is signed and verified.

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See other products by Andrew Block

Austin Dewey

Austin Dewey is a DevOps engineer focused on delivering a streamlined developer experience on cloud and container technologies. Austin started his career with Red Hat's consulting organization, where he helped drive success at Fortune 500 companies by automating deployments on Red Hat's Kubernetes-based PaaS, OpenShift Container Platform. Currently, Austin works at fintech start-up Prime Trust, where he builds automation to scale financial infrastructure and supports developers on Kubernetes and AWS.

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