Mastering GitLab 12

Utilizing the keypair module – modules/services/keypair/main.tf

This module is responsible for creating a public/private keypair that is used to connect to the instances with SSH. It was available in the previous chapters, but it was in the root module. Now, it is a standalone module that's called from the GitLab module with certain arguments:

provider "aws" {  region = "${var.region}"}resource "tls_private_key" "mykey"{    algorithm = "RSA"     rsa_bits = 4096}resource "aws_key_pair" "keypair"{    public_key = "${tls_private_key.mykey.public_key_openssh}"}

At the top of the preceding code, you can see the region that's been defined. This is an argument on the top level that's passed through to the child module.