x/gantt
Code Issues Proposed changes

Xenapi: Don't resize down if not auto_disk_config

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It is not safe to resize down an instance if the filesystem has not been
resized first, but with auto_disk_config == False there's no guarantee
that it has happened.  And not resizing down the disk space with the
instance allows for users to have more space on their instance than the
type should allow.

Fixes bug 1081225

Change-Id: I980c0699dfc272155e274a96d6e08e131c1372d9
This commit is contained in:
Andrew Laski 2012-11-20 13:25:36 -05:00
parent d121d7573c
commit 12ed134f9e
2 changed files with 18 additions and 0 deletions
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4
nova/exception.py
View File

@ -865,6 +865,10 @@ class CannotResizeToSameFlavor(NovaException):
message = _("When resizing, instances must change flavor!")
class ResizeError(NovaException):
message = _("Resize error: %(reason)s")
class ImageTooLarge(NovaException):
message = _("Image is larger than instance type allows")

14
nova/tests/test_xenapi.py
View File

@ -1254,6 +1254,20 @@ class XenAPIMigrateInstance(stubs.XenAPITestBase):
dict(base_copy='hurr', cow='durr'),
network_info, image_meta, resize_instance=False)
def test_migrate_no_auto_disk_config_no_resize_down(self):
"""Resize down should fail when auto_disk_config not set"""
instance_values = self.instance_values
instance_values['root_gb'] = 40
instance_values['auto_disk_config'] = False
instance = db.instance_create(self.context, instance_values)
xenapi_fake.create_vm(instance.name, 'Running')
instance_type = db.instance_type_get_by_name(self.context, 'm1.small')
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
self.assertRaises(exception.ResizeError,
conn.migrate_disk_and_power_off,
self.context, instance,
'127.0.0.1', instance_type, None)
class XenAPIImageTypeTestCase(test.TestCase):
"""Test ImageType class."""