## Terraform Functions

- [`file`](https://www.terraform.io/docs/configuration/functions/file.html) reads the contents of a file at the given path and returns them as a string. This function can be used only with files that already exist on disk at the beginning of a Terraform run.
- [`templatefile`](https://www.terraform.io/docs/configuration/functions/templatefile.html) reads the file at the given path and renders its content as a template using a supplied set of template variables.