如何将 Object 属性从我的父母传递给 Terraform 中的孩子？

Question

I want to pass for example the ID of a VPC, which lives in the parent, to a Module in Terraform. I already figured out that I can do so by using the Outputs.tf , initialize a variable in the variables.tf in the children and value it in the "module" in the parents main.tf . If you would do the same the other way, you'd just have to say for example

module "example"{
vpc_id = module.network.vpc.id
}

But as I need it the other way around, I can't say module.network. How would I have to do this, when I#m referring to an Object of the Parent?

Answer 1

Let's say your VPC is named "main" like in the official examples .

To reference the ID anywhere in the parent Terraform template, you would use aws_vpc.main.id .

So to pass that to a module, it would look like this;

module "example"{
   vpc_id = aws_vpc.main.id
}