docs: clarify when to use `for_each` and `count` meta-arguments

equinor / terraform-baseline

Best practices for creating reusable Terraform modules using the Azure provider

https://equinor.github.io/terraform-baseline/

MIT License

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Closed hknutsen closed 6 months ago

hknutsen commented 6 months ago

Add section that describes how to use the count meta-argument to conditionally create resources. We use this technique in both the Web App and VM modules.
Remove the point that describes how to use the count meta-argument to create repeatable unnamed resources. Using for_each is always the safer approach, as it depends on static keys rather than dynamic indexes.

Closes #147, closes #63.

hknutsen commented 6 months ago

@equinor/terraform-baseline-maintainers Created this PR after the discussions in today's meetup. Any comments, or do you agree? 🙂