Terraform Basics: Local Values

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One of the more underrated features of Terraform is local values. They are internal variables you can use throughout your configuration to help you practice DRY programming. Let's take a look at what local values are, how they are different from input variables, and when you would use them.

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Music by Evan Williams ©2020

Timestamps
0:00 Intro
1:34 What are local values?
4:14 Local value use cases
6:39 Local value syntax
8:54 Local value organization
10:45 Local value demonstration
16:30 Summary
17:11 Outro
  1. Ned in the Cloud
  2. Terraform Tutorial
  3. HashiCorp Terraform
  4. Terraform Basics
  5. Terraform Local Values
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Комментарии
Автор

Can you please tell which VSCode extension you use for Terraform and what's the configuration.

macdilen
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Can you please cover the topic of using Atlantis and Chekhov? It’s rarely covered on the internet 🙏🏼

Luther_Luffeigh
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Ty Ned! R u considering to start covering Bicep (since u've mentioned arm-templates var declaration similarity with TF) ? Would be great to attend Bicep Fri :)

mosksky
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hi Ned, could you please tell me the theme you are using in vscode?

Vaisakhreghu
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I like to hide the nasty logic in locals. For instance, the Azure modules provided by Microsoft are kind of nasty where you might build several Virtual Networks, you pass a list of names, then a list of address spaces... very poor practice.

Instead, I like defining map/object structure that is hierarchical. Well, that doesn't work well with a for_each. So, I will clean up the nice input format into a way that is flatter and more digestible with a for_each. Very handy in modules.

dusdnd