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test_driver.py
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test_driver.py
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# Copyright 2010 OpenStack Foundation
# Copyright 2012 University Of Minho
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import __builtin__
import contextlib
import copy
import datetime
import errno
import glob
import os
import random
import re
import shutil
import threading
import time
import uuid
import eventlet
from eventlet import greenthread
import fixtures
from lxml import etree
import mock
from mox3 import mox
from oslo_concurrency import lockutils
from oslo_concurrency import processutils
from oslo_config import cfg
from oslo_serialization import jsonutils
from oslo_utils import encodeutils
from oslo_utils import importutils
from oslo_utils import timeutils
from oslo_utils import units
from oslo_utils import uuidutils
import six
from nova.api.metadata import base as instance_metadata
from nova.compute import arch
from nova.compute import cpumodel
from nova.compute import manager
from nova.compute import power_state
from nova.compute import task_states
from nova.compute import utils as compute_utils
from nova.compute import vm_mode
from nova.compute import vm_states
from nova import context
from nova import db
from nova import exception
from nova.network import model as network_model
from nova import objects
from nova.openstack.common import fileutils
from nova.openstack.common import loopingcall
from nova.pci import manager as pci_manager
from nova import test
from nova.tests.unit import fake_block_device
from nova.tests.unit import fake_instance
from nova.tests.unit import fake_network
import nova.tests.unit.image.fake
from nova.tests.unit import matchers
from nova.tests.unit.objects import test_pci_device
from nova.tests.unit.objects import test_vcpu_model
from nova.tests.unit.virt.libvirt import fake_imagebackend
from nova.tests.unit.virt.libvirt import fake_libvirt_utils
from nova.tests.unit.virt.libvirt import fakelibvirt
from nova import utils
from nova import version
from nova.virt import block_device as driver_block_device
from nova.virt import configdrive
from nova.virt.disk import api as disk
from nova.virt import driver
from nova.virt import fake
from nova.virt import firewall as base_firewall
from nova.virt import hardware
from nova.virt.libvirt import blockinfo
from nova.virt.libvirt import config as vconfig
from nova.virt.libvirt import driver as libvirt_driver
from nova.virt.libvirt import firewall
from nova.virt.libvirt import host
from nova.virt.libvirt import imagebackend
from nova.virt.libvirt import lvm
from nova.virt.libvirt import rbd_utils
from nova.virt.libvirt import utils as libvirt_utils
from nova.virt.libvirt import volume as volume_drivers
libvirt_driver.libvirt = fakelibvirt
host.libvirt = fakelibvirt
CONF = cfg.CONF
CONF.import_opt('compute_manager', 'nova.service')
CONF.import_opt('host', 'nova.netconf')
CONF.import_opt('my_ip', 'nova.netconf')
CONF.import_opt('image_cache_subdirectory_name', 'nova.virt.imagecache')
CONF.import_opt('instances_path', 'nova.compute.manager')
_fake_network_info = fake_network.fake_get_instance_nw_info
_fake_NodeDevXml = \
{"pci_0000_04_00_3": """
<device>
<name>pci_0000_04_00_3</name>
<parent>pci_0000_00_01_1</parent>
<driver>
<name>igb</name>
</driver>
<capability type='pci'>
<domain>0</domain>
<bus>4</bus>
<slot>0</slot>
<function>3</function>
<product id='0x1521'>I350 Gigabit Network Connection</product>
<vendor id='0x8086'>Intel Corporation</vendor>
<capability type='virt_functions'>
<address domain='0x0000' bus='0x04' slot='0x10' function='0x3'/>
<address domain='0x0000' bus='0x04' slot='0x10' function='0x7'/>
<address domain='0x0000' bus='0x04' slot='0x11' function='0x3'/>
<address domain='0x0000' bus='0x04' slot='0x11' function='0x7'/>
</capability>
</capability>
</device>""",
"pci_0000_04_10_7": """
<device>
<name>pci_0000_04_10_7</name>
<parent>pci_0000_00_01_1</parent>
<driver>
<name>igbvf</name>
</driver>
<capability type='pci'>
<domain>0</domain>
<bus>4</bus>
<slot>16</slot>
<function>7</function>
<product id='0x1520'>I350 Ethernet Controller Virtual Function
</product>
<vendor id='0x8086'>Intel Corporation</vendor>
<capability type='phys_function'>
<address domain='0x0000' bus='0x04' slot='0x00' function='0x3'/>
</capability>
<capability type='virt_functions'>
</capability>
</capability>
</device>""",
"pci_0000_04_11_7": """
<device>
<name>pci_0000_04_11_7</name>
<parent>pci_0000_00_01_1</parent>
<driver>
<name>igbvf</name>
</driver>
<capability type='pci'>
<domain>0</domain>
<bus>4</bus>
<slot>17</slot>
<function>7</function>
<product id='0x1520'>I350 Ethernet Controller Virtual Function
</product>
<vendor id='0x8086'>Intel Corporation</vendor>
<numa node='0'/>
<capability type='phys_function'>
<address domain='0x0000' bus='0x04' slot='0x00' function='0x3'/>
</capability>
<capability type='virt_functions'>
</capability>
</capability>
</device>"""}
_fake_cpu_info = {
"arch": "test_arch",
"model": "test_model",
"vendor": "test_vendor",
"topology": {
"sockets": 1,
"cores": 8,
"threads": 16
},
"features": ["feature1", "feature2"]
}
def _concurrency(signal, wait, done, target, is_block_dev=False):
signal.send()
wait.wait()
done.send()
class FakeVirDomainSnapshot(object):
def __init__(self, dom=None):
self.dom = dom
def delete(self, flags):
pass
class FakeVirtDomain(object):
def __init__(self, fake_xml=None, uuidstr=None, id=None, name=None):
if uuidstr is None:
uuidstr = str(uuid.uuid4())
self.uuidstr = uuidstr
self.id = id
self.domname = name
self._info = [power_state.RUNNING, 2048 * units.Mi, 1234 * units.Mi,
None, None]
if fake_xml:
self._fake_dom_xml = fake_xml
else:
self._fake_dom_xml = """
<domain type='kvm'>
<devices>
<disk type='file'>
<source file='filename'/>
</disk>
</devices>
</domain>
"""
def name(self):
if self.domname is None:
return "fake-domain %s" % self
else:
return self.domname
def ID(self):
return self.id
def info(self):
return self._info
def create(self):
pass
def managedSave(self, *args):
pass
def createWithFlags(self, launch_flags):
pass
def XMLDesc(self, *args):
return self._fake_dom_xml
def UUIDString(self):
return self.uuidstr
def attachDeviceFlags(self, xml, flags):
pass
def attachDevice(self, xml):
pass
def detachDeviceFlags(self, xml, flags):
pass
def snapshotCreateXML(self, xml, flags):
pass
def blockCommit(self, disk, base, top, bandwidth=0, flags=0):
pass
def blockRebase(self, disk, base, bandwidth=0, flags=0):
pass
def blockJobInfo(self, path, flags):
pass
def resume(self):
pass
def destroy(self):
pass
def fsFreeze(self, disks=None, flags=0):
pass
def fsThaw(self, disks=None, flags=0):
pass
class CacheConcurrencyTestCase(test.NoDBTestCase):
def setUp(self):
super(CacheConcurrencyTestCase, self).setUp()
self.flags(instances_path=self.useFixture(fixtures.TempDir()).path)
# utils.synchronized() will create the lock_path for us if it
# doesn't already exist. It will also delete it when it's done,
# which can cause race conditions with the multiple threads we
# use for tests. So, create the path here so utils.synchronized()
# won't delete it out from under one of the threads.
self.lock_path = os.path.join(CONF.instances_path, 'locks')
fileutils.ensure_tree(self.lock_path)
def fake_exists(fname):
basedir = os.path.join(CONF.instances_path,
CONF.image_cache_subdirectory_name)
if fname == basedir or fname == self.lock_path:
return True
return False
def fake_execute(*args, **kwargs):
pass
def fake_extend(image, size, use_cow=False):
pass
self.stubs.Set(os.path, 'exists', fake_exists)
self.stubs.Set(utils, 'execute', fake_execute)
self.stubs.Set(imagebackend.disk, 'extend', fake_extend)
self.useFixture(fixtures.MonkeyPatch(
'nova.virt.libvirt.imagebackend.libvirt_utils',
fake_libvirt_utils))
def _fake_instance(self, uuid):
return objects.Instance(id=1, uuid=uuid)
def test_same_fname_concurrency(self):
# Ensures that the same fname cache runs at a sequentially.
uuid = uuidutils.generate_uuid()
backend = imagebackend.Backend(False)
wait1 = eventlet.event.Event()
done1 = eventlet.event.Event()
sig1 = eventlet.event.Event()
thr1 = eventlet.spawn(backend.image(self._fake_instance(uuid),
'name').cache,
_concurrency, 'fname', None,
signal=sig1, wait=wait1, done=done1)
eventlet.sleep(0)
# Thread 1 should run before thread 2.
sig1.wait()
wait2 = eventlet.event.Event()
done2 = eventlet.event.Event()
sig2 = eventlet.event.Event()
thr2 = eventlet.spawn(backend.image(self._fake_instance(uuid),
'name').cache,
_concurrency, 'fname', None,
signal=sig2, wait=wait2, done=done2)
wait2.send()
eventlet.sleep(0)
try:
self.assertFalse(done2.ready())
finally:
wait1.send()
done1.wait()
eventlet.sleep(0)
self.assertTrue(done2.ready())
# Wait on greenthreads to assert they didn't raise exceptions
# during execution
thr1.wait()
thr2.wait()
def test_different_fname_concurrency(self):
# Ensures that two different fname caches are concurrent.
uuid = uuidutils.generate_uuid()
backend = imagebackend.Backend(False)
wait1 = eventlet.event.Event()
done1 = eventlet.event.Event()
sig1 = eventlet.event.Event()
thr1 = eventlet.spawn(backend.image(self._fake_instance(uuid),
'name').cache,
_concurrency, 'fname2', None,
signal=sig1, wait=wait1, done=done1)
eventlet.sleep(0)
# Thread 1 should run before thread 2.
sig1.wait()
wait2 = eventlet.event.Event()
done2 = eventlet.event.Event()
sig2 = eventlet.event.Event()
thr2 = eventlet.spawn(backend.image(self._fake_instance(uuid),
'name').cache,
_concurrency, 'fname1', None,
signal=sig2, wait=wait2, done=done2)
eventlet.sleep(0)
# Wait for thread 2 to start.
sig2.wait()
wait2.send()
tries = 0
while not done2.ready() and tries < 10:
eventlet.sleep(0)
tries += 1
try:
self.assertTrue(done2.ready())
finally:
wait1.send()
eventlet.sleep(0)
# Wait on greenthreads to assert they didn't raise exceptions
# during execution
thr1.wait()
thr2.wait()
class FakeVolumeDriver(object):
def __init__(self, *args, **kwargs):
pass
def attach_volume(self, *args):
pass
def detach_volume(self, *args):
pass
def get_xml(self, *args):
return ""
def get_config(self, *args):
"""Connect the volume to a fake device."""
conf = vconfig.LibvirtConfigGuestDisk()
conf.source_type = "network"
conf.source_protocol = "fake"
conf.source_name = "fake"
conf.target_dev = "fake"
conf.target_bus = "fake"
return conf
def connect_volume(self, *args):
"""Connect the volume to a fake device."""
return self.get_config()
class FakeConfigGuestDisk(object):
def __init__(self, *args, **kwargs):
self.source_type = None
self.driver_cache = None
class FakeConfigGuest(object):
def __init__(self, *args, **kwargs):
self.driver_cache = None
class FakeNodeDevice(object):
def __init__(self, fakexml):
self.xml = fakexml
def XMLDesc(self, *args):
return self.xml
def _create_test_instance():
flavor = objects.Flavor(memory_mb=2048,
swap=0,
vcpu_weight=None,
root_gb=1,
id=2,
name=u'm1.small',
ephemeral_gb=0,
rxtx_factor=1.0,
flavorid=u'1',
vcpus=1,
extra_specs={})
return {
'id': 1,
'uuid': '32dfcb37-5af1-552b-357c-be8c3aa38310',
'memory_kb': '1024000',
'basepath': '/some/path',
'bridge_name': 'br100',
'display_name': "Acme webserver",
'vcpus': 2,
'project_id': 'fake',
'bridge': 'br101',
'image_ref': '155d900f-4e14-4e4c-a73d-069cbf4541e6',
'root_gb': 10,
'ephemeral_gb': 20,
'instance_type_id': '5', # m1.small
'extra_specs': {},
'system_metadata': {},
'flavor': flavor,
'new_flavor': None,
'old_flavor': None,
'pci_devices': objects.PciDeviceList(),
'numa_topology': None,
'config_drive': None,
'vm_mode': None,
'kernel_id': None,
'ramdisk_id': None,
'os_type': 'linux',
'user_id': '838a72b0-0d54-4827-8fd6-fb1227633ceb',
'ephemeral_key_uuid': None,
'vcpu_model': None,
'host': 'fake-host',
}
class LibvirtConnTestCase(test.NoDBTestCase):
REQUIRES_LOCKING = True
_EPHEMERAL_20_DEFAULT = ('ephemeral_20_%s' %
utils.get_hash_str(disk._DEFAULT_FILE_SYSTEM)[:7])
def setUp(self):
super(LibvirtConnTestCase, self).setUp()
self.flags(fake_call=True)
self.user_id = 'fake'
self.project_id = 'fake'
self.context = context.get_admin_context()
temp_dir = self.useFixture(fixtures.TempDir()).path
self.flags(instances_path=temp_dir)
self.flags(snapshots_directory=temp_dir, group='libvirt')
self.useFixture(fixtures.MonkeyPatch(
'nova.virt.libvirt.driver.libvirt_utils',
fake_libvirt_utils))
self.flags(sysinfo_serial="hardware", group="libvirt")
self.useFixture(fixtures.MonkeyPatch(
'nova.virt.libvirt.imagebackend.libvirt_utils',
fake_libvirt_utils))
def fake_extend(image, size, use_cow=False):
pass
self.stubs.Set(libvirt_driver.disk, 'extend', fake_extend)
self.stubs.Set(imagebackend.Image, 'resolve_driver_format',
imagebackend.Image._get_driver_format)
self.useFixture(fakelibvirt.FakeLibvirtFixture())
self.test_instance = _create_test_instance()
self.image_service = nova.tests.unit.image.fake.stub_out_image_service(
self.stubs)
self.device_xml_tmpl = """
<domain type='kvm'>
<devices>
<disk type='block' device='disk'>
<driver name='qemu' type='raw' cache='none'/>
<source dev='{device_path}'/>
<target bus='virtio' dev='vdb'/>
<serial>58a84f6d-3f0c-4e19-a0af-eb657b790657</serial>
<address type='pci' domain='0x0' bus='0x0' slot='0x04' \
function='0x0'/>
</disk>
</devices>
</domain>
"""
def relpath(self, path):
return os.path.relpath(path, CONF.instances_path)
def tearDown(self):
nova.tests.unit.image.fake.FakeImageService_reset()
super(LibvirtConnTestCase, self).tearDown()
def test_driver_capabilities(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), False)
self.assertTrue(drvr.capabilities['has_imagecache'],
'Driver capabilities for \'has_imagecache\''
'is invalid')
self.assertTrue(drvr.capabilities['supports_recreate'],
'Driver capabilities for \'supports_recreate\''
'is invalid')
def create_fake_libvirt_mock(self, **kwargs):
"""Defining mocks for LibvirtDriver(libvirt is not used)."""
# A fake libvirt.virConnect
class FakeLibvirtDriver(object):
def defineXML(self, xml):
return FakeVirtDomain()
# Creating mocks
volume_driver = ['iscsi=nova.tests.unit.virt.libvirt.test_driver'
'.FakeVolumeDriver']
fake = FakeLibvirtDriver()
# Customizing above fake if necessary
for key, val in kwargs.items():
fake.__setattr__(key, val)
self.stubs.Set(libvirt_driver.LibvirtDriver, '_conn', fake)
self.stubs.Set(libvirt_driver.LibvirtDriver, '_get_volume_drivers',
lambda x: volume_driver)
self.stubs.Set(host.Host, 'get_connection', lambda x: fake)
def fake_lookup(self, instance_name):
return FakeVirtDomain()
def fake_execute(self, *args, **kwargs):
open(args[-1], "a").close()
def _create_service(self, **kwargs):
service_ref = {'host': kwargs.get('host', 'dummy'),
'disabled': kwargs.get('disabled', False),
'binary': 'nova-compute',
'topic': 'compute',
'report_count': 0}
return objects.Service(**service_ref)
def _get_launch_flags(self, drvr, network_info, power_on=True,
vifs_already_plugged=False):
timeout = CONF.vif_plugging_timeout
events = []
if (drvr._conn_supports_start_paused and
utils.is_neutron() and
not vifs_already_plugged and
power_on and timeout):
events = drvr._get_neutron_events(network_info)
launch_flags = events and fakelibvirt.VIR_DOMAIN_START_PAUSED or 0
return launch_flags
def test_public_api_signatures(self):
baseinst = driver.ComputeDriver(None)
inst = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
self.assertPublicAPISignatures(baseinst, inst)
def test_legacy_block_device_info(self):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
self.assertFalse(drvr.need_legacy_block_device_info)
@mock.patch.object(host.Host, "has_min_version")
def test_min_version_start_ok(self, mock_version):
mock_version.return_value = True
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
drvr.init_host("dummyhost")
@mock.patch.object(host.Host, "has_min_version")
def test_min_version_start_abort(self, mock_version):
mock_version.return_value = False
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
self.assertRaises(exception.NovaException,
drvr.init_host,
"dummyhost")
@mock.patch.object(objects.Service, 'get_by_compute_host')
def test_set_host_enabled_with_disable(self, mock_svc):
# Tests disabling an enabled host.
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
svc = self._create_service(host='fake-mini')
mock_svc.return_value = svc
drvr._set_host_enabled(False)
self.assertTrue(svc.disabled)
@mock.patch.object(objects.Service, 'get_by_compute_host')
def test_set_host_enabled_with_enable(self, mock_svc):
# Tests enabling a disabled host.
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
svc = self._create_service(disabled=True, host='fake-mini')
mock_svc.return_value = svc
drvr._set_host_enabled(True)
self.assertTrue(svc.disabled)
@mock.patch.object(objects.Service, 'get_by_compute_host')
def test_set_host_enabled_with_enable_state_enabled(self, mock_svc):
# Tests enabling an enabled host.
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
svc = self._create_service(disabled=False, host='fake-mini')
mock_svc.return_value = svc
drvr._set_host_enabled(True)
self.assertFalse(svc.disabled)
@mock.patch.object(objects.Service, 'get_by_compute_host')
def test_set_host_enabled_with_disable_state_disabled(self, mock_svc):
# Tests disabling a disabled host.
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
svc = self._create_service(disabled=True, host='fake-mini')
mock_svc.return_value = svc
drvr._set_host_enabled(False)
self.assertTrue(svc.disabled)
def test_set_host_enabled_swallows_exceptions(self):
# Tests that set_host_enabled will swallow exceptions coming from the
# db_api code so they don't break anything calling it, e.g. the
# _get_new_connection method.
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
with mock.patch.object(db, 'service_get_by_compute_host') as db_mock:
# Make db.service_get_by_compute_host raise NovaException; this
# is more robust than just raising ComputeHostNotFound.
db_mock.side_effect = exception.NovaException
drvr._set_host_enabled(False)
@mock.patch.object(fakelibvirt.virConnect, "nodeDeviceLookupByName")
def test_prepare_pci_device(self, mock_lookup):
pci_devices = [dict(hypervisor_name='xxx')]
self.flags(virt_type='xen', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
conn = drvr._host.get_connection()
mock_lookup.side_effect = lambda x: fakelibvirt.NodeDevice(conn)
drvr._prepare_pci_devices_for_use(pci_devices)
@mock.patch.object(fakelibvirt.virConnect, "nodeDeviceLookupByName")
@mock.patch.object(fakelibvirt.virNodeDevice, "dettach")
def test_prepare_pci_device_exception(self, mock_detach, mock_lookup):
pci_devices = [dict(hypervisor_name='xxx',
id='id1',
instance_uuid='uuid')]
self.flags(virt_type='xen', group='libvirt')
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
conn = drvr._host.get_connection()
mock_lookup.side_effect = lambda x: fakelibvirt.NodeDevice(conn)
mock_detach.side_effect = fakelibvirt.libvirtError("xxxx")
self.assertRaises(exception.PciDevicePrepareFailed,
drvr._prepare_pci_devices_for_use, pci_devices)
def test_detach_pci_devices_exception(self):
pci_devices = [dict(hypervisor_name='xxx',
id='id1',
instance_uuid='uuid')]
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
self.mox.StubOutWithMock(host.Host,
'has_min_version')
host.Host.has_min_version = lambda x, y: False
self.assertRaises(exception.PciDeviceDetachFailed,
drvr._detach_pci_devices, None, pci_devices)
def test_detach_pci_devices(self):
fake_domXML1 =\
"""<domain> <devices>
<disk type='file' device='disk'>
<driver name='qemu' type='qcow2' cache='none'/>
<source file='xxx'/>
<target dev='vda' bus='virtio'/>
<alias name='virtio-disk0'/>
<address type='pci' domain='0x0000' bus='0x00'
slot='0x04' function='0x0'/>
</disk>
<hostdev mode="subsystem" type="pci" managed="yes">
<source>
<address function="0x1" slot="0x10" domain="0x0000"
bus="0x04"/>
</source>
</hostdev></devices></domain>"""
pci_devices = [dict(hypervisor_name='xxx',
id='id1',
instance_uuid='uuid',
address="0001:04:10:1")]
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
self.mox.StubOutWithMock(host.Host,
'has_min_version')
host.Host.has_min_version = lambda x, y: True
self.mox.StubOutWithMock(libvirt_driver.LibvirtDriver,
'_get_guest_pci_device')
class FakeDev(object):
def to_xml(self):
pass
libvirt_driver.LibvirtDriver._get_guest_pci_device =\
lambda x, y: FakeDev()
class FakeDomain(object):
def detachDeviceFlags(self, xml, flag):
pci_devices[0]['hypervisor_name'] = 'marked'
pass
def XMLDesc(self, flag):
return fake_domXML1
drvr._detach_pci_devices(FakeDomain(), pci_devices)
self.assertEqual(pci_devices[0]['hypervisor_name'], 'marked')
def test_detach_pci_devices_timeout(self):
fake_domXML1 =\
"""<domain>
<devices>
<hostdev mode="subsystem" type="pci" managed="yes">
<source>
<address function="0x1" slot="0x10" domain="0x0000" bus="0x04"/>
</source>
</hostdev>
</devices>
</domain>"""
pci_devices = [dict(hypervisor_name='xxx',
id='id1',
instance_uuid='uuid',
address="0000:04:10:1")]
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
self.mox.StubOutWithMock(host.Host,
'has_min_version')
host.Host.has_min_version = lambda x, y: True
self.mox.StubOutWithMock(libvirt_driver.LibvirtDriver,
'_get_guest_pci_device')
class FakeDev(object):
def to_xml(self):
pass
libvirt_driver.LibvirtDriver._get_guest_pci_device =\
lambda x, y: FakeDev()
class FakeDomain(object):
def detachDeviceFlags(self, xml, flag):
pass
def XMLDesc(self, flag):
return fake_domXML1
self.assertRaises(exception.PciDeviceDetachFailed,
drvr._detach_pci_devices, FakeDomain(), pci_devices)
def test_get_connector(self):
initiator = 'fake.initiator.iqn'
ip = 'fakeip'
host = 'fakehost'
wwpns = ['100010604b019419']
wwnns = ['200010604b019419']
self.flags(my_ip=ip)
self.flags(host=host)
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
expected = {
'ip': ip,
'initiator': initiator,
'host': host,
'wwpns': wwpns,
'wwnns': wwnns
}
volume = {
'id': 'fake'
}
result = drvr.get_volume_connector(volume)
self.assertThat(expected, matchers.DictMatches(result))
def test_get_connector_storage_ip(self):
ip = '100.100.100.100'
storage_ip = '101.101.101.101'
self.flags(my_block_storage_ip=storage_ip, my_ip=ip)
volume = {
'id': 'fake'
}
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
result = drvr.get_volume_connector(volume)
self.assertEqual(storage_ip, result['ip'])
def test_lifecycle_event_registration(self):
calls = []
def fake_registerErrorHandler(*args, **kwargs):
calls.append('fake_registerErrorHandler')
def fake_get_host_capabilities(**args):
cpu = vconfig.LibvirtConfigGuestCPU()
cpu.arch = arch.ARMV7
caps = vconfig.LibvirtConfigCaps()
caps.host = vconfig.LibvirtConfigCapsHost()
caps.host.cpu = cpu
calls.append('fake_get_host_capabilities')
return caps
@mock.patch.object(fakelibvirt, 'registerErrorHandler',
side_effect=fake_registerErrorHandler)
@mock.patch.object(host.Host, "get_capabilities",
side_effect=fake_get_host_capabilities)
def test_init_host(get_host_capabilities, register_error_handler):
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
drvr.init_host("test_host")
test_init_host()
# NOTE(dkliban): Will fail if get_host_capabilities is called before
# registerErrorHandler
self.assertEqual(['fake_registerErrorHandler',
'fake_get_host_capabilities'], calls)
def test_sanitize_log_to_xml(self):
# setup fake data
data = {'auth_password': 'scrubme'}
bdm = [{'connection_info': {'data': data}}]
bdi = {'block_device_mapping': bdm}
# Tests that the parameters to the _get_guest_xml method
# are sanitized for passwords when logged.
def fake_debug(*args, **kwargs):
if 'auth_password' in args[0]:
self.assertNotIn('scrubme', args[0])
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
conf = mock.Mock()
with contextlib.nested(
mock.patch.object(libvirt_driver.LOG, 'debug',
side_effect=fake_debug),
mock.patch.object(drvr, '_get_guest_config', return_value=conf)
) as (
debug_mock, conf_mock
):
drvr._get_guest_xml(self.context, self.test_instance,
network_info={}, disk_info={},
image_meta={}, block_device_info=bdi)
# we don't care what the log message is, we just want to make sure
# our stub method is called which asserts the password is scrubbed
self.assertTrue(debug_mock.called)
@mock.patch.object(time, "time")
def test_get_guest_config(self, time_mock):
time_mock.return_value = 1234567.89
drvr = libvirt_driver.LibvirtDriver(fake.FakeVirtAPI(), True)
test_instance = copy.deepcopy(self.test_instance)
test_instance["display_name"] = "purple tomatoes"
ctxt = context.RequestContext(project_id=123,
project_name="aubergine",
user_id=456,
user_name="pie")
flavor = objects.Flavor(name='m1.small',
memory_mb=6,
vcpus=28,
root_gb=496,
ephemeral_gb=8128,
swap=33550336,
extra_specs={})
instance_ref = objects.Instance(**test_instance)
instance_ref.flavor = flavor
image_meta = {}
disk_info = blockinfo.get_disk_info(CONF.libvirt.virt_type,
instance_ref,
image_meta)
cfg = drvr._get_guest_config(instance_ref,
_fake_network_info(self.stubs, 1),
{}, disk_info,
context=ctxt)
self.assertEqual(cfg.uuid, instance_ref["uuid"])
self.assertEqual(2, len(cfg.features))
self.assertIsInstance(cfg.features[0],
vconfig.LibvirtConfigGuestFeatureACPI)
self.assertIsInstance(cfg.features[1],
vconfig.LibvirtConfigGuestFeatureAPIC)
self.assertEqual(cfg.memory, 6 * units.Ki)
self.assertEqual(cfg.vcpus, 28)
self.assertEqual(cfg.os_type, vm_mode.HVM)
self.assertEqual(cfg.os_boot_dev, ["hd"])
self.assertIsNone(cfg.os_root)
self.assertEqual(len(cfg.devices), 10)
self.assertIsInstance(cfg.devices[0],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[1],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[2],
vconfig.LibvirtConfigGuestDisk)
self.assertIsInstance(cfg.devices[3],
vconfig.LibvirtConfigGuestInterface)
self.assertIsInstance(cfg.devices[4],
vconfig.LibvirtConfigGuestSerial)
self.assertIsInstance(cfg.devices[5],
vconfig.LibvirtConfigGuestSerial)
self.assertIsInstance(cfg.devices[6],
vconfig.LibvirtConfigGuestInput)
self.assertIsInstance(cfg.devices[7],
vconfig.LibvirtConfigGuestGraphics)
self.assertIsInstance(cfg.devices[8],
vconfig.LibvirtConfigGuestVideo)
self.assertIsInstance(cfg.devices[9],
vconfig.LibvirtConfigMemoryBalloon)
self.assertEqual(len(cfg.metadata), 1)
self.assertIsInstance(cfg.metadata[0],
vconfig.LibvirtConfigGuestMetaNovaInstance)
self.assertEqual(version.version_string_with_package(),
cfg.metadata[0].package)
self.assertEqual("purple tomatoes",
cfg.metadata[0].name)
self.assertEqual(1234567.89,
cfg.metadata[0].creationTime)
self.assertEqual("image",
cfg.metadata[0].roottype)
self.assertEqual(str(instance_ref["image_ref"]),
cfg.metadata[0].rootid)
self.assertIsInstance(cfg.metadata[0].owner,
vconfig.LibvirtConfigGuestMetaNovaOwner)
self.assertEqual(456,