Terraform is currently tightly coupled with the Installer. We use internal API's that were never intended for public consumption. Terraform has removed this ability in later versions. The various Terraform providers also have become problematic because of Terraform vs Installer dependencies. It would be ideal to move Terraform and its dependencies out of the installer. We could possibly place them in the release image, a unique image of its own, or even part of the installer binary but split out. Let's explore options here.