def test_is_resize_required(self):
self.assertFalse(vhdutils.is_resize_required(
mock.sentinel.disk, 1024, 1024, self._instance))
self.assertTrue(vhdutils.is_resize_required(
mock.sentinel.disk, 1024, 2048, self._instance))
self.assertRaises(nova_exception.CannotResizeDisk,
vhdutils.is_resize_required,
mock.sentinel.disk, 2048, 1024, self._instance)
def test_is_resize_required(self):
self.assertFalse(
vhdutils.is_resize_required(mock.sentinel.disk, 1024, 1024,
self._instance))
self.assertTrue(
vhdutils.is_resize_required(mock.sentinel.disk, 1024, 2048,
self._instance))
self.assertRaises(nova_exception.CannotResizeDisk,
vhdutils.is_resize_required, mock.sentinel.disk,
2048, 1024, self._instance)
def _resize_disk(self, instance, new_size, disk_file):
if not new_size:
return
disk_info = vhdutils.disk_info(disk_file)
current_size = disk_info[constants.VHD_CAPACITY] / units.Mi
if vhdutils.is_resize_required(disk_file, current_size,
new_size, instance):
self._vbox_manage.modify_hd(
disk_file, constants.FIELD_HD_RESIZE_MB, new_size)
def _resize_disk(self, instance, new_size, disk_file):
if not new_size:
return
disk_info = vhdutils.disk_info(disk_file)
current_size = disk_info[constants.VHD_CAPACITY] / units.Mi
if vhdutils.is_resize_required(disk_file, current_size, new_size,
instance):
self._vbox_manage.modify_hd(disk_file,
constants.FIELD_HD_RESIZE_MB, new_size)
def create_root_disk(self, context, instance):
base_vhd_path = imagecache.get_cached_image(context, instance)
base_info = vhdutils.disk_info(base_vhd_path)
root_vhd_path = pathutils.root_disk_path(
instance, disk_format=base_info[constants.VHD_IMAGE_TYPE])
if CONF.use_cow_images:
LOG.debug(
"Creating differencing VHD. Parent: %(parent)s, "
"Target: %(target)s", {
'parent': base_vhd_path,
'target': root_vhd_path
},
instance=instance)
self._vbox_manage.create_hd(
filename=root_vhd_path,
# disk_format=base_info[constants.VHD_IMAGE_TYPE],
variant=constants.VARIANT_STANDARD,
parent=base_vhd_path)
else:
LOG.debug(
"Cloning VHD image %(base)s to target: %(target)s", {
'base': base_vhd_path,
'target': root_vhd_path
},
instance=instance)
self._vbox_manage.clone_hd(
vhd_path=base_vhd_path,
new_vdh_path=root_vhd_path,
disk_format=base_info[constants.VHD_IMAGE_TYPE],
variant=constants.VARIANT_STANDARD)
# Resize image if is necesary
disk_format = vhdutils.get_image_type(root_vhd_path)
if instance.root_gb and disk_format in (constants.DISK_FORMAT_VDI,
constants.DISK_FORMAT_VHD):
base_vhd_size = base_info[constants.VHD_CAPACITY] / units.Mi
root_vhd_size = instance.root_gb * units.Ki
if vhdutils.is_resize_required(
disk_path=root_vhd_path,
old_size=base_vhd_size,
new_size=root_vhd_size,
instance=instance):
self._vbox_manage.modify_hd(
root_vhd_path, constants.FIELD_HD_RESIZE_MB, root_vhd_size)
return root_vhd_path
def create_root_disk(self, context, instance):
base_vhd_path = imagecache.get_cached_image(context, instance)
base_info = vhdutils.disk_info(base_vhd_path)
root_vhd_path = pathutils.root_disk_path(
instance, disk_format=base_info[constants.VHD_IMAGE_TYPE])
if CONF.use_cow_images:
LOG.debug(
"Creating differencing VHD. Parent: %(parent)s, "
"Target: %(target)s", {
'parent': base_vhd_path,
'target': root_vhd_path
},
instance=instance)
self._vbox_manage.create_hd(
filename=root_vhd_path,
# disk_format=base_info[constants.VHD_IMAGE_TYPE],
variant=constants.VARIANT_STANDARD,
parent=base_vhd_path)
else:
LOG.debug("Cloning VHD image %(base)s to target: %(target)s", {
'base': base_vhd_path,
'target': root_vhd_path
},
instance=instance)
self._vbox_manage.clone_hd(
vhd_path=base_vhd_path,
new_vdh_path=root_vhd_path,
disk_format=base_info[constants.VHD_IMAGE_TYPE],
variant=constants.VARIANT_STANDARD)
# Resize image if is necesary
disk_format = vhdutils.get_image_type(root_vhd_path)
if instance.root_gb and disk_format in (constants.DISK_FORMAT_VDI,
constants.DISK_FORMAT_VHD):
base_vhd_size = base_info[constants.VHD_CAPACITY] / units.Mi
root_vhd_size = instance.root_gb * units.Ki
if vhdutils.is_resize_required(disk_path=root_vhd_path,
old_size=base_vhd_size,
new_size=root_vhd_size,
instance=instance):
self._vbox_manage.modify_hd(root_vhd_path,
constants.FIELD_HD_RESIZE_MB,
root_vhd_size)
return root_vhd_path
