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)
示例#2
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    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)
示例#4
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 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)
示例#5
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    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
示例#6
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    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