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Managing Kubernetes Resources Using Helm

You're reading from   Managing Kubernetes Resources Using Helm Simplifying how to build, package, and distribute applications for Kubernetes

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Product type Paperback
Published in Sep 2022
Publisher Packt
ISBN-13 9781803242897
Length 310 pages
Edition 2nd Edition
Tools
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Authors (2):
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Andrew Block Andrew Block
Author Profile Icon Andrew Block
Andrew Block
Austin Dewey Austin Dewey
Author Profile Icon Austin Dewey
Austin Dewey
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Table of Contents (18) Chapters Close

Preface 1. Part 1: Introduction and Setup
2. Chapter 1: Understanding Kubernetes and Helm FREE CHAPTER 3. Chapter 2: Preparing a Kubernetes and Helm Environment 4. Chapter 3: Installing Your First App with Helm 5. Part 2: Helm Chart Development
6. Chapter 4: Scaffolding a New Helm Chart 7. Chapter 5: Helm Dependency Management 8. Chapter 6: Understanding Helm Templates 9. Chapter 7: Helm Lifecycle Hooks 10. Chapter 8: Publishing to a Helm Chart Repository 11. Chapter 9: Testing Helm Charts 12. Part 3: Advanced Deployment Patterns
13. Chapter 10: Automating Helm with CD and GitOps 14. Chapter 11: Using Helm with the Operator Framework 15. Chapter 12: Helm Security Considerations 16. Index 17. Other Books You May Enjoy

Improving chart tests with the Chart Testing tool

The testing methods described in the previous section are sufficient enough to determine whether a Helm chart can be successfully installed. However, some key limitations are inherent to the standard Helm testing process and need to be discussed.

The first limitation to consider is the difficulty of testing different permutations that can occur within a chart’s values. Because the helm test command does not provide the ability to modify a release’s values beyond those set at the time of an installation or upgrade, the following workflow must be followed when running helm test against different values:

  1. Install your chart with an initial set of values.
  2. Run helm test against your release.
  3. Delete your release.
  4. Install the chart with a different set of values.
  5. Repeat Step 2 through Step 4 until a significant amount of value possibilities have been tested.

Each of these manual steps poses the...

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