Terraform: how to to Reference Output Variables in Nested Module for Azure Resources
I'm sure I'm missing something obvious here, but I've searched everywhere and can't find a clear answer. I'm working with an scenario when trying to reference output variables from a nested module in my Terraform configuration. I'm using Terraform v1.4.1 and have structured my modules as follows: I have a parent module where I declare a nested module for creating an Azure Resource Group and another one for deploying Azure Virtual Machines. The output of the resource group module should be passed to the VM module as an input. However, I'm working with a situation where the output from the first module does not seem to be recognized in the second module, resulting in the following behavior: ``` behavior: Invalid function argument on modules/vm/main.tf line 5, in resource "azurerm_virtual_machine" "example": 5: resource_group_name = module.resource_group.name The argument "resource_group_name" is set to invalid value. ``` Here’s how my Terraform code is structured: In the parent module, I call the resource group module: ```hcl module "resource_group" { source = "./modules/resource_group" name = "my-resource-group" } ``` In the resource group module, I define the output: ```hcl output "name" { value = azurerm_resource_group.example.name } ``` Then, in the VM module, I attempt to reference this output like this: ```hcl module "vm" { source = "./modules/vm" resource_group_name = module.resource_group.name } ``` I've verified that the `azurerm_resource_group` resource is being created correctly, and I can see the output when I run `terraform output`. However, when I apply the entire configuration, it throws the aforementioned behavior. I've tried re-running `terraform init` and `terraform plan`, and even updated the module paths in case that was causing an scenario. I also checked for typos in the output and input variable names, but everything seems to be correct. Has anyone experienced a similar scenario or have any suggestions on how to resolve this? I'm on Windows 11 using the latest version of Hcl. I'd be grateful for any help. This is for a web app running on Windows 10. Is there a better approach? I'm developing on Windows 10 with Hcl. Cheers for any assistance!