Terraform reusable resource modules.
Please take a look at the official Terraform Module Registry first.
If the registered module is too complicated for Gengo's use, isn't verified or doesn't really suited for us, make a pull request.
Recommended reading: Terraform best practices
Use //module-dir to source a specific module.
module "kms" {
source = "[email protected]:gengo/terrablocks.git//aws-kms-key?ref=1.0.0"
...
# required variables
}