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Extending SaltStack

You're reading from   Extending SaltStack Build and write salt modules

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Product type Paperback
Published in Mar 2016
Publisher Packt
ISBN-13 9781785888618
Length 240 pages
Edition 1st Edition
Languages
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Author (1):
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Joseph Hall Joseph Hall
Author Profile Icon Joseph Hall
Joseph Hall
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Table of Contents (15) Chapters Close

Preface 1. Starting with the Basics FREE CHAPTER 2. Writing Execution Modules 3. Extending Salt Configuration 4. Wrapping States Around Execution Modules 5. Rendering Data 6. Handling Return Data 7. Scripting with Runners 8. Adding External File Servers 9. Connecting to the Cloud 10. Monitoring with Beacons 11. Extending the Master A. Connecting Different Modules B. Contributing Code Upstream Index

Troubleshooting state modules

Even though the code is more structured, it can be a little tricky to troubleshoot state modules. This is because you need to test all four types of return results:

  • True – The resource is already correctly configured
  • None – The resource is not correctly configured, and test mode is True
  • True with changes – The resource was not correctly configured, but now it is
  • False – The resource could not be correctly configured

What makes this even trickier is that in the course of troubleshooting, you are likely to change configuration to be correct, and then incorrect, and then back again several times before the code is right. I suggest breaking it up.

Step 1: test for truth

Your first step, after setting up your defaults, is to check whether the resource is correctly configured. This is likely to require you to manually toggle settings to make sure it is properly checking both desired and undesired configuration. Add two returns: one for True and...

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