Merge "libvirt: Report the virtual size of RAW disks" into stable/queens

This commit is contained in:
Zuul 2018-05-15 20:36:00 +00:00 committed by Gerrit Code Review
commit 365a1d2a13
2 changed files with 32 additions and 39 deletions

View File

@ -4329,7 +4329,7 @@ class LibvirtConnTestCase(test.NoDBTestCase,
[mock.call(host='127.0.0.1', port=10000),
mock.call(host='127.0.0.1', port=10001)])
@mock.patch('os.path.getsize', return_value=0) # size doesn't matter
@mock.patch('nova.virt.disk.api.get_disk_size', return_value=0)
@mock.patch('nova.virt.libvirt.storage.lvm.get_volume_size',
return_value='fake-size')
def test_detach_encrypted_volumes(self, mock_get_volume_size,
@ -8785,8 +8785,10 @@ class LibvirtConnTestCase(test.NoDBTestCase,
mock_getsize = mock.Mock()
mock_getsize.return_value = "10737418240"
mock_get_virtual_size = mock.Mock()
mock_get_virtual_size.return_value = "10737418240"
return (mock_getsize, mock_lookup)
return (mock_getsize, mock_get_virtual_size, mock_lookup)
def test_is_shared_block_storage_rbd(self):
self.flags(images_type='rbd', group='libvirt')
@ -8879,7 +8881,7 @@ class LibvirtConnTestCase(test.NoDBTestCase,
{'connection_info': 'info', 'mount_device': '/dev/vda'}]}
instance = objects.Instance(**self.test_instance)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
(mock_getsize, mock_lookup) =\
(mock_getsize, mock_get_virtual_size, mock_lookup) =\
self._is_shared_block_storage_test_create_mocks(disks)
data = objects.LibvirtLiveMigrateData(is_volume_backed=True,
is_shared_instance_path=False)
@ -8903,18 +8905,21 @@ class LibvirtConnTestCase(test.NoDBTestCase,
{'connection_info': 'info', 'mount_device': '/dev/vda'}]}
instance = objects.Instance(**self.test_instance)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
(mock_getsize, mock_lookup) =\
(mock_getsize, mock_get_virtual_size, mock_lookup) =\
self._is_shared_block_storage_test_create_mocks(disks)
data = objects.LibvirtLiveMigrateData(is_volume_backed=True,
is_shared_instance_path=False)
with test.nested(
mock.patch.object(libvirt_driver.disk_api,
'get_allocated_disk_size', mock_getsize),
mock.patch.object(libvirt_driver.disk_api,
'get_disk_size', mock_get_virtual_size),
mock.patch.object(host.Host, '_get_domain', mock_lookup)):
self.assertFalse(drvr._is_shared_block_storage(
instance, data,
block_device_info = bdi))
mock_getsize.assert_called_once_with('/instance/disk.local')
mock_get_virtual_size.assert_called_once_with('/instance/disk.local')
mock_lookup.assert_called_once_with(instance)
def test_is_shared_block_storage_nfs(self):
@ -11609,27 +11614,17 @@ class LibvirtConnTestCase(test.NoDBTestCase,
self.mox.StubOutWithMock(libvirt_driver.disk_api,
'get_allocated_disk_size')
self.mox.StubOutWithMock(libvirt_driver.disk_api, 'get_disk_size')
path = '/test/disk'
size = 10737418240
libvirt_driver.disk_api.get_allocated_disk_size(path).AndReturn((size))
libvirt_driver.disk_api.get_disk_size(path).AndReturn((size))
path = '/test/disk.local'
size = 3328599655
vsize = 21474836480
libvirt_driver.disk_api.get_allocated_disk_size(path).AndReturn((size))
ret = ("image: /test/disk.local\n"
"file format: qcow2\n"
"virtual size: 20G (21474836480 bytes)\n"
"disk size: 3.1G\n"
"cluster_size: 2097152\n"
"backing file: /test/dummy (actual path: /backing/file)\n")
self.mox.StubOutWithMock(os.path, "exists")
os.path.exists('/test/disk.local').AndReturn(True)
self.mox.StubOutWithMock(utils, "execute")
utils.execute('env', 'LC_ALL=C', 'LANG=C', 'qemu-img', 'info',
'/test/disk.local', prlimit = images.QEMU_IMG_LIMITS,
).AndReturn((ret, ''))
libvirt_driver.disk_api.get_disk_size(path).AndReturn((vsize))
self.mox.ReplayAll()
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
@ -11766,27 +11761,17 @@ class LibvirtConnTestCase(test.NoDBTestCase,
self.mox.StubOutWithMock(libvirt_driver.disk_api,
'get_allocated_disk_size')
self.mox.StubOutWithMock(libvirt_driver.disk_api, 'get_disk_size')
path = '/test/disk'
size = 10737418240
libvirt_driver.disk_api.get_allocated_disk_size(path).AndReturn((size))
libvirt_driver.disk_api.get_disk_size(path).AndReturn((size))
path = '/test/disk.local'
size = 3328599655
vsize = 21474836480
libvirt_driver.disk_api.get_allocated_disk_size(path).AndReturn((size))
ret = ("image: /test/disk.local\n"
"file format: qcow2\n"
"virtual size: 20G (21474836480 bytes)\n"
"disk size: 3.1G\n"
"cluster_size: 2097152\n"
"backing file: /test/dummy (actual path: /backing/file)\n")
self.mox.StubOutWithMock(os.path, "exists")
os.path.exists('/test/disk.local').AndReturn(True)
self.mox.StubOutWithMock(utils, "execute")
utils.execute('env', 'LC_ALL=C', 'LANG=C', 'qemu-img', 'info',
'/test/disk.local', prlimit = images.QEMU_IMG_LIMITS,
).AndReturn((ret, ''))
libvirt_driver.disk_api.get_disk_size(path).AndReturn((vsize))
self.mox.ReplayAll()
conn_info = {'driver_volume_type': 'fake'}
@ -11837,9 +11822,13 @@ class LibvirtConnTestCase(test.NoDBTestCase,
self.mox.StubOutWithMock(libvirt_driver.disk_api,
"get_allocated_disk_size")
self.mox.StubOutWithMock(libvirt_driver.disk_api,
"get_disk_size")
path = '/test/disk'
size = 10737418240
libvirt_driver.disk_api.get_allocated_disk_size(path).AndReturn((size))
libvirt_driver.disk_api.get_disk_size(path).AndReturn((size))
self.mox.ReplayAll()
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
@ -19248,6 +19237,7 @@ class LibvirtDriverTestCase(test.NoDBTestCase):
self.assertEqual(fields.CPUMode.HOST_MODEL, vcpu_model.mode)
self.assertEqual(vcpu_model, vcpu_model_1)
@mock.patch('nova.virt.disk.api.get_disk_size', return_value=10)
@mock.patch.object(lvm, 'get_volume_size', return_value=10)
@mock.patch.object(host.Host, "get_guest")
@mock.patch.object(dmcrypt, 'delete_volume')
@ -19256,7 +19246,8 @@ class LibvirtDriverTestCase(test.NoDBTestCase):
@mock.patch.object(objects.Instance, 'save')
def test_cleanup_lvm_encrypted(self, mock_save, mock_undefine_domain,
mock_unfilter, mock_delete_volume,
mock_get_guest, mock_get_size):
mock_get_guest, mock_get_lvm_size,
mock_get_size):
drv = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance = objects.Instance(
uuid=uuids.instance, id=1,
@ -19286,11 +19277,12 @@ class LibvirtDriverTestCase(test.NoDBTestCase):
block_device_info=block_device_info)
mock_delete_volume.assert_called_once_with('/dev/mapper/fake-dmcrypt')
@mock.patch('nova.virt.disk.api.get_disk_size', return_value=10)
@mock.patch.object(lvm, 'get_volume_size', return_value=10)
@mock.patch.object(host.Host, "get_guest")
@mock.patch.object(dmcrypt, 'delete_volume')
def _test_cleanup_lvm(self, mock_delete_volume, mock_get_guest, mock_size,
encrypted=False):
def _test_cleanup_lvm(self, mock_delete_volume, mock_get_guest,
mock_lvm_size, mock_get_size, encrypted=False):
drv = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
instance = objects.Instance(

View File

@ -7923,13 +7923,14 @@ class LibvirtDriver(driver.ComputeDriver):
{'path': path, 'target': target})
continue
# NOTE(lyarwood): Always fetch the virtual size for all disk types.
virt_size = disk_api.get_disk_size(path)
if driver_type in ("qcow2", "ploop"):
backing_file = libvirt_utils.get_disk_backing_file(path)
virt_size = disk_api.get_disk_size(path)
over_commit_size = int(virt_size) - dk_size
else:
backing_file = ""
virt_size = dk_size
over_commit_size = 0
disk_info.append({'type': driver_type,