# iam/main.tf

# 1. Compte de service pour Terraform
resource "google_service_account" "terraform_sa" {
  account_id   = "terraform-sa"
  display_name = "Terraform Service Account"
  project      = var.project_id
}

# 2. Clé pour ce compte de service
resource "google_service_account_key" "terraform_sa_key" {
  service_account_id = google_service_account.terraform_sa.id
  public_key_type    = "TYPE_X509_PEM_FILE"
}

# 3. Rôles IAM nécessaires
resource "google_project_iam_member" "terraform_sa_roles" {
  for_each = toset([
    "roles/compute.admin",
    "roles/iam.serviceAccountUser",
    "roles/oslogin.admin",
    "roles/viewer"
  ])

  project = var.project_id
  role    = each.value
  member  = "serviceAccount:${google_service_account.terraform_sa.email}"
}

# 4. Configuration OS Login avec clé SSH
resource "google_os_login_ssh_public_key" "terraform_sa_ssh" {
  username   = "terraform"
  public_key = file("~/.ssh/id_rsa.pub")
  project    = var.project_id
}