def test_pick_disk_driver_name_xen(self, mock_execute):
def side_effect(*args, **kwargs):
if args == ('tap-ctl', 'check'):
if mock_execute.blktap is True:
return ('ok\n', '')
elif mock_execute.blktap is False:
return ('some error\n', '')
else:
raise OSError(2, "No such file or directory")
elif args == ('xend', 'status'):
if mock_execute.xend is True:
return ('', '')
elif mock_execute.xend is False:
raise processutils.ProcessExecutionError("error")
else:
raise OSError(2, "No such file or directory")
raise Exception('Unexpected call')
mock_execute.side_effect = side_effect
self.flags(virt_type="xen", group='libvirt')
versions = [4000000, 4001000, 4002000, 4003000, 4005000]
for version in versions:
# block dev
result = libvirt_utils.pick_disk_driver_name(version, True)
self.assertEqual(result, "phy")
self.assertFalse(mock_execute.called)
mock_execute.reset_mock()
# file dev
for blktap in True, False, None:
mock_execute.blktap = blktap
for xend in True, False, None:
mock_execute.xend = xend
result = libvirt_utils.pick_disk_driver_name(
version, False)
# qemu backend supported only by libxl which is
# production since xen 4.2. libvirt use libxl if
# xend service not started.
if version >= 4002000 and xend is not True:
self.assertEqual(result, 'qemu')
elif blktap:
if version == 4000000:
self.assertEqual(result, 'tap')
else:
self.assertEqual(result, 'tap2')
else:
self.assertEqual(result, 'file')
# default is_block_dev False
self.assertEqual(
result, libvirt_utils.pick_disk_driver_name(version))
mock_execute.reset_mock()
def test_pick_disk_driver_name_xen(self, mock_execute):
def side_effect(*args, **kwargs):
if args == ('tap-ctl', 'check'):
if mock_execute.blktap is True:
return ('ok\n', '')
elif mock_execute.blktap is False:
return ('some error\n', '')
else:
raise OSError(2, "No such file or directory")
elif args == ('xend', 'status'):
if mock_execute.xend is True:
return ('', '')
elif mock_execute.xend is False:
raise processutils.ProcessExecutionError("error")
else:
raise OSError(2, "No such file or directory")
raise Exception('Unexpected call')
mock_execute.side_effect = side_effect
self.flags(virt_type="xen", group='libvirt')
versions = [4000000, 4001000, 4002000, 4003000, 4005000]
for version in versions:
# block dev
result = libvirt_utils.pick_disk_driver_name(version, True)
self.assertEqual(result, "phy")
self.assertFalse(mock_execute.called)
mock_execute.reset_mock()
# file dev
for blktap in True, False, None:
mock_execute.blktap = blktap
for xend in True, False, None:
mock_execute.xend = xend
result = libvirt_utils.pick_disk_driver_name(version,
False)
# qemu backend supported only by libxl which is
# production since xen 4.2. libvirt use libxl if
# xend service not started.
if version >= 4002000 and xend is not True:
self.assertEqual(result, 'qemu')
elif blktap:
if version == 4000000:
self.assertEqual(result, 'tap')
else:
self.assertEqual(result, 'tap2')
else:
self.assertEqual(result, 'file')
# default is_block_dev False
self.assertEqual(result,
libvirt_utils.pick_disk_driver_name(version))
mock_execute.reset_mock()
def libvirt_info(self, disk_bus, disk_dev, device_type, cache_mode,
extra_specs, hypervisor_version):
"""Get `LibvirtConfigGuestDisk` filled for this image.
:disk_dev: Disk bus device name
:disk_bus: Disk bus type
:device_type: Device type for this image.
:cache_mode: Caching mode for this image
:extra_specs: Instance type extra specs dict.
"""
info = vconfig.LibvirtConfigGuestDisk()
info.source_type = self.source_type
info.source_device = device_type
info.target_bus = disk_bus
info.target_dev = disk_dev
info.driver_cache = cache_mode
info.driver_discard = self.discard_mode
info.driver_format = self.driver_format
driver_name = libvirt_utils.pick_disk_driver_name(
hypervisor_version, self.is_block_dev)
info.driver_name = driver_name
info.source_path = self.path
tune_items = [
'disk_read_bytes_sec', 'disk_read_iops_sec',
'disk_write_bytes_sec', 'disk_write_iops_sec',
'disk_total_bytes_sec', 'disk_total_iops_sec'
]
for key, value in extra_specs.iteritems():
scope = key.split(':')
if len(scope) > 1 and scope[0] == 'quota':
if scope[1] in tune_items:
setattr(info, scope[1], value)
return info
def libvirt_info(self, disk_bus, disk_dev, device_type, cache_mode,
extra_specs, hypervisor_version):
"""Get `LibvirtConfigGuestDisk` filled for this image.
:disk_dev: Disk bus device name
:disk_bus: Disk bus type
:device_type: Device type for this image.
:cache_mode: Caching mode for this image
:extra_specs: Instance type extra specs dict.
"""
info = vconfig.LibvirtConfigGuestDisk()
info.source_type = self.source_type
info.source_device = device_type
info.target_bus = disk_bus
info.target_dev = disk_dev
info.driver_cache = cache_mode
info.driver_discard = self.discard_mode
info.driver_format = self.driver_format
driver_name = libvirt_utils.pick_disk_driver_name(hypervisor_version,
self.is_block_dev)
info.driver_name = driver_name
info.source_path = self.path
tune_items = ['disk_read_bytes_sec', 'disk_read_iops_sec',
'disk_write_bytes_sec', 'disk_write_iops_sec',
'disk_total_bytes_sec', 'disk_total_iops_sec']
for key, value in extra_specs.iteritems():
scope = key.split(':')
if len(scope) > 1 and scope[0] == 'quota':
if scope[1] in tune_items:
setattr(info, scope[1], value)
return info
def test_pick_disk_driver_name(self):
type_map = {'kvm': ([True, 'qemu'], [False, 'qemu'], [None, 'qemu']),
'qemu': ([True, 'qemu'], [False, 'qemu'], [None, 'qemu']),
'uml': ([True, None], [False, None], [None, None]),
'lxc': ([True, None], [False, None], [None, None])}
# NOTE(aloga): Xen is tested in test_pick_disk_driver_name_xen
version = 1005001
for (virt_type, checks) in type_map.iteritems():
self.flags(virt_type=virt_type, group='libvirt')
for (is_block_dev, expected_result) in checks:
result = libvirt_utils.pick_disk_driver_name(version,
is_block_dev)
self.assertEqual(result, expected_result)
def test_pick_disk_driver_name(self):
type_map = {
'kvm': ([True, 'qemu'], [False, 'qemu'], [None, 'qemu']),
'qemu': ([True, 'qemu'], [False, 'qemu'], [None, 'qemu']),
'uml': ([True, None], [False, None], [None, None]),
'lxc': ([True, None], [False, None], [None, None])
}
# NOTE(aloga): Xen is tested in test_pick_disk_driver_name_xen
version = 1005001
for (virt_type, checks) in type_map.iteritems():
self.flags(virt_type=virt_type, group='libvirt')
for (is_block_dev, expected_result) in checks:
result = libvirt_utils.pick_disk_driver_name(
version, is_block_dev)
self.assertEqual(result, expected_result)
