Sep 10, 2021 · If you want to have TF load tfvars automatically, the file must be called terraform.tfvars, not variables.tfvars. There are other possibilities: Terraform also automatically loads a number of variable definitions files if they are present: Files named exactly terraform.tfvars or terraform.tfvars.json.

To load files from subdirectories, Terraform uses a module structure. It’s vital to keep in mind that .tfvars values only apply to variables in the root module. The root .tfvars files are essential and authoritative, while child .tfvars files have no effect.

Oct 10, 2017 · In this case, I will provide module variable values in env-dev/services/apollo/main.tf and remove terraform.tfvars and vars.tf. I will add output.tf for any desired values. For any sensitive values I will use a key vault.

Terraform tooling is built to understand the standard module structure and use that structure to generate documentation, index modules for the module registry, and more. The standard module structure expects the layout documented below.

Feb 3, 2021 · To NOT use workspaces, but rather a distinct directory-per-environment approach. To NOT use a terragrunt wrapper. This is my current structure, which does not utilize modules - only a root module: main.tf --------- Sets up AWS provider, backend, backend bucket, DynamoDB table . terraform.tfvars .

Jan 5, 2023 · The first way you can pass variables inside your child modules would be to define a variables.tf file on your main module and a terraform.tfvars. Then you should also define a variables.tf file inside each module and contain the definition of each module.

4 days ago · Organize module files logically: main.tf for core resources.; variables.tf for input variables.; outputs.tf for outputs.versions.tf for the minimal terraform version, and provider configurations (if required).; README.md for the repository's basic documentation of the module and all of its nested folders.; To improve readability, split logic into separate files.

May 5, 2023 · Tf vars are the input variables. Just reference your module in the resources. E.g. create an variable like vnet name, and pass resource.vnet.name there in module block. If your not using a module forget about the var file

This article explains how to pass variables to Terraform modules using five different methods: .tfvars files, command-line arguments, environment variables, defining variables within modules, and passing variables from parent to child modules. Each method is …

Input variables let you customize aspects of Terraform modules without altering the module's own source code. This functionality allows you to share modules across different Terraform configurations, making your module composable and reusable.