Generate a aws-auth iam for the mapUsers section

aws-auth-map-users.tf

# https://github.com/kubernetes-sigs/aws-iam-authenticator/issues/176

data "aws_caller_identity" "current" {}

data "aws_iam_group" "ops" {
  group_name = "Ops"
}

provider "aws" {
  profile = var.aws_profile
  region  = var.aws_region
}

output "users" {
  value = [
    for user in data.aws_iam_group.ops.users :
    {
      user_arn = join("", ["arn:aws:iam::${data.aws_caller_identity.current.account_id}:user/", user.user_name])
      username = user.user_name
      group    = "system:masters"
    }
  ]
}