but3-iac/terraform/modules/iam/main.tf

resource "google_service_account" "terraform_sa" {
  account_id   = "terraform"
  project      = var.project_id
  display_name = "Terraform Service Account"
}


resource "google_service_account_key" "terraform_sa_key" {
  service_account_id = google_service_account.terraform_sa.name
  private_key_type   = "TYPE_GOOGLE_CREDENTIALS_FILE"  //TYPE_X509_PEM_FILE fonctionne pas
}


resource "google_project_iam_binding" "viewer_binding" {
  project = var.project_id
  role    = "roles/viewer"

  members = [
    "serviceAccount:${google_service_account.terraform_sa.email}"
  ]
}

data "google_client_openid_userinfo" "me" {}

resource "google_os_login_ssh_public_key" "ssh_key" {
  project = var.project_id
  user = data.google_client_openid_userinfo.me.email
  key  = file(pathexpand("~/.ssh/id_ed25519.pub"))
}

resource "google_project_iam_custom_role" "custom_viewer" {
  role_id     = "customBasicViewer"
  title       = "Custom Basic Viewer"
  project     = var.project_id
  description = "Role custom pour TP"

  permissions = [
    "compute.instances.get",
    "compute.instances.list",
  ]
}