Refering to resources from other layers

As terragrunt purpose is to have a better management of your layers dependencies, it includes some features simplifying remote state references.


Terragrunt includes dependency features to get remote layer informations.

Using dependency feature

In terragrunt, you can refer to another layer of your infrastructure using dependency feature. By using this feature:

Applying a layer using a dependency will enforce the parent layer apply if needed, and allow you to make sure your infrastructure has no drift.

If you want highly consistent outputs and layers dependencies, you may want to run terragrunt run-all at your project root.

To go further

Feel free to read the terragrunt documentation to investigate deeper configurations for dependencies. For exemple, You will be able to define mocked outputs and dependency skip in your code to simplify your development and deployment.