Question

Your team maintains a reusable networking module stored in a local directory at ../modules/vpc. You need to provision two separate VPCs (production and staging) in the same root configuration, each with different CIDR ranges passed as input variables. What is the correct approach?

Accepted Answer

Declare two separate module blocks that both reference source = "../modules/vpc", giving each a unique name and passing different input variable values.

Answer

Copy the module directory into two separate folders and reference each copy from its own module block, since a single module source can only be used once.

Answer

Use a single module block with source = "../modules/vpc" and pass a list of both CIDR values to a single input variable.

Answer

Add the depends_on meta-argument to a single module block so Terraform provisions both VPCs sequentially.