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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

Understanding chart definitions

The Chart.yaml file, also known as the chart definition, is a resource that declares different metadata about a Helm chart. This file is required and if it is not included in a chart's file structure, you'll receive the following error:

Error: validation: chart.metadata is required

In Chapter 3, Installing Your First Helm Chart, we explored the chart definition of Bitnami's WordPress chart by running the helm show chart command. Recall this chart definition by running this command again. We will assume that the Bitnami chart repository has already been added since this task was performed in Chapter 3, Installing Your First Helm Chart:

$ helm show chart bitnami/wordpress --version 8.1.0

Below lists the chart definition of the wordpress chart.

Figure 4.1 – The chart definition of the wordpress chart.

The chart definition, or the Chart.yaml file, can contain many different fields. Some of the fields...

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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.

See other products by Austin Dewey

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