#volume.tf 
resource "libvirt_volume" "os_image" {
  name   = var.vm_config["os_image_name"]
  pool   = var.vm_config["storage_pool"]
  source = var.vm_config["os_image_url"]
  format = "qcow2"
}

resource "libvirt_volume" "disk_resized" {
  name           = "disk.qcow2"
  base_volume_id = libvirt_volume.os_image.id
  pool           = var.vm_config["storage_pool"]
  size           = var.vm_config["disksize"] * 1024 * 1024 * 1024
}