advanced-libvirt-terraform-examples/multiple/shared_modules/cloud-init.tf

resource "libvirt_cloudinit_disk" "commoninit" {
  name      = var.cloudinit_filename
  user_data = templatefile("${path.module}/cloud_init.yaml", {
    ssh_key = var.ssh_key
  })
  pool      =  "${var.vm_name}-pool"
  depends_on = [libvirt_pool.tf_tmp_storage]
}