/
test_libvirt.py
4239 lines (3515 loc) · 171 KB
/
test_libvirt.py
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# vim: tabstop=4 shiftwidth=4 softtabstop=4
#
# Copyright 2010 OpenStack LLC
# 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 copy
import errno
import eventlet
import json
import mox
import os
import re
import shutil
import tempfile
from lxml import etree
from xml.dom import minidom
from nova.api.ec2 import cloud
from nova.compute import instance_types
from nova.compute import power_state
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 import flags
from nova.openstack.common import importutils
from nova.openstack.common import jsonutils
from nova.openstack.common import log as logging
from nova import test
from nova.tests import fake_libvirt_utils
from nova.tests import fake_network
import nova.tests.image.fake
from nova import utils
from nova.virt.disk import api as disk
from nova.virt import driver
from nova.virt import firewall as base_firewall
from nova.virt import images
from nova.virt.libvirt import config
from nova.virt.libvirt import driver as libvirt_driver
from nova.virt.libvirt import firewall
from nova.virt.libvirt import imagebackend
from nova.virt.libvirt import utils as libvirt_utils
from nova.virt.libvirt import volume
from nova.virt.libvirt import volume_nfs
from nova.volume import driver as volume_driver
try:
import libvirt
except ImportError:
import nova.tests.fakelibvirt as libvirt
libvirt_driver.libvirt = libvirt
FLAGS = flags.FLAGS
LOG = logging.getLogger(__name__)
_fake_network_info = fake_network.fake_get_instance_nw_info
_fake_stub_out_get_nw_info = fake_network.stub_out_nw_api_get_instance_nw_info
_ipv4_like = fake_network.ipv4_like
def _concurrency(wait, done, target):
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):
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):
return "fake-domain %s" % self
def info(self):
return [power_state.RUNNING, None, None, None, None]
def create(self):
pass
def managedSave(self, *args):
pass
def createWithFlags(self, launch_flags):
pass
def XMLDesc(self, *args):
return self._fake_dom_xml
class LibvirtVolumeTestCase(test.TestCase):
def setUp(self):
super(LibvirtVolumeTestCase, self).setUp()
self.executes = []
def fake_execute(*cmd, **kwargs):
self.executes.append(cmd)
return None, None
self.stubs.Set(utils, 'execute', fake_execute)
class FakeLibvirtDriver(object):
def __init__(self, hyperv="QEMU"):
self.hyperv = hyperv
def get_hypervisor_type(self):
return self.hyperv
def get_all_block_devices(self):
return []
self.fake_conn = FakeLibvirtDriver()
self.connr = {
'ip': '127.0.0.1',
'initiator': 'fake_initiator',
'host': 'fake_host'
}
def test_libvirt_volume_driver_serial(self):
vol_driver = volume_driver.VolumeDriver()
libvirt_driver = volume.LibvirtVolumeDriver(self.fake_conn)
name = 'volume-00000001'
vol = {'id': 1, 'name': name}
connection_info = {
'driver_volume_type': 'fake',
'data': {
'device_path': '/foo',
},
'serial': 'fake_serial',
}
mount_device = "vde"
conf = libvirt_driver.connect_volume(connection_info, mount_device)
tree = conf.format_dom()
self.assertEqual(tree.get('type'), 'block')
self.assertEqual(tree.find('./serial').text, 'fake_serial')
def test_libvirt_iscsi_driver(self):
# NOTE(vish) exists is to make driver assume connecting worked
self.stubs.Set(os.path, 'exists', lambda x: True)
vol_driver = volume_driver.ISCSIDriver()
libvirt_driver = volume.LibvirtISCSIVolumeDriver(self.fake_conn)
location = '10.0.2.15:3260'
name = 'volume-00000001'
iqn = 'iqn.2010-10.org.openstack:%s' % name
vol = {'id': 1,
'name': name,
'provider_auth': None,
'provider_location': '%s,fake %s' % (location, iqn)}
connection_info = vol_driver.initialize_connection(vol, self.connr)
mount_device = "vde"
conf = libvirt_driver.connect_volume(connection_info, mount_device)
tree = conf.format_dom()
dev_str = '/dev/disk/by-path/ip-%s-iscsi-%s-lun-1' % (location, iqn)
self.assertEqual(tree.get('type'), 'block')
self.assertEqual(tree.find('./source').get('dev'), dev_str)
libvirt_driver.disconnect_volume(connection_info, mount_device)
connection_info = vol_driver.terminate_connection(vol, self.connr)
expected_commands = [('iscsiadm', '-m', 'node', '-T', iqn,
'-p', location),
('iscsiadm', '-m', 'node', '-T', iqn,
'-p', location, '--login'),
('iscsiadm', '-m', 'node', '-T', iqn,
'-p', location, '--op', 'update',
'-n', 'node.startup', '-v', 'automatic'),
('iscsiadm', '-m', 'node', '-T', iqn,
'-p', location, '--op', 'update',
'-n', 'node.startup', '-v', 'manual'),
('iscsiadm', '-m', 'node', '-T', iqn,
'-p', location, '--logout'),
('iscsiadm', '-m', 'node', '-T', iqn,
'-p', location, '--op', 'delete')]
self.assertEqual(self.executes, expected_commands)
def test_libvirt_iscsi_driver_still_in_use(self):
# NOTE(vish) exists is to make driver assume connecting worked
self.stubs.Set(os.path, 'exists', lambda x: True)
vol_driver = volume_driver.ISCSIDriver()
libvirt_driver = volume.LibvirtISCSIVolumeDriver(self.fake_conn)
location = '10.0.2.15:3260'
name = 'volume-00000001'
iqn = 'iqn.2010-10.org.openstack:%s' % name
devs = ['/dev/disk/by-path/ip-%s-iscsi-%s-lun-1' % (location, iqn)]
self.stubs.Set(self.fake_conn, 'get_all_block_devices', lambda: devs)
vol = {'id': 1,
'name': name,
'provider_auth': None,
'provider_location': '%s,fake %s' % (location, iqn)}
connection_info = vol_driver.initialize_connection(vol, self.connr)
mount_device = "vde"
conf = libvirt_driver.connect_volume(connection_info, mount_device)
tree = conf.format_dom()
dev_str = '/dev/disk/by-path/ip-%s-iscsi-%s-lun-1' % (location, iqn)
self.assertEqual(tree.get('type'), 'block')
self.assertEqual(tree.find('./source').get('dev'), dev_str)
libvirt_driver.disconnect_volume(connection_info, mount_device)
connection_info = vol_driver.terminate_connection(vol, self.connr)
expected_commands = [('iscsiadm', '-m', 'node', '-T', iqn,
'-p', location),
('iscsiadm', '-m', 'node', '-T', iqn,
'-p', location, '--login'),
('iscsiadm', '-m', 'node', '-T', iqn,
'-p', location, '--op', 'update',
'-n', 'node.startup', '-v', 'automatic')]
self.assertEqual(self.executes, expected_commands)
def test_libvirt_sheepdog_driver(self):
vol_driver = volume_driver.SheepdogDriver()
libvirt_driver = volume.LibvirtNetVolumeDriver(self.fake_conn)
name = 'volume-00000001'
vol = {'id': 1, 'name': name}
connection_info = vol_driver.initialize_connection(vol, self.connr)
mount_device = "vde"
conf = libvirt_driver.connect_volume(connection_info, mount_device)
tree = conf.format_dom()
self.assertEqual(tree.get('type'), 'network')
self.assertEqual(tree.find('./source').get('protocol'), 'sheepdog')
self.assertEqual(tree.find('./source').get('name'), name)
libvirt_driver.disconnect_volume(connection_info, mount_device)
connection_info = vol_driver.terminate_connection(vol, self.connr)
def test_libvirt_rbd_driver(self):
vol_driver = volume_driver.RBDDriver()
libvirt_driver = volume.LibvirtNetVolumeDriver(self.fake_conn)
name = 'volume-00000001'
vol = {'id': 1, 'name': name}
connection_info = vol_driver.initialize_connection(vol, self.connr)
mount_device = "vde"
conf = libvirt_driver.connect_volume(connection_info, mount_device)
tree = conf.format_dom()
self.assertEqual(tree.get('type'), 'network')
self.assertEqual(tree.find('./source').get('protocol'), 'rbd')
rbd_name = '%s/%s' % (FLAGS.rbd_pool, name)
self.assertEqual(tree.find('./source').get('name'), rbd_name)
self.assertEqual(tree.find('./source/auth'), None)
libvirt_driver.disconnect_volume(connection_info, mount_device)
connection_info = vol_driver.terminate_connection(vol, self.connr)
def test_libvirt_rbd_driver_auth_enabled(self):
vol_driver = volume_driver.RBDDriver()
libvirt_driver = volume.LibvirtNetVolumeDriver(self.fake_conn)
name = 'volume-00000001'
vol = {'id': 1, 'name': name}
connection_info = vol_driver.initialize_connection(vol, self.connr)
uuid = '875a8070-d0b9-4949-8b31-104d125c9a64'
user = 'foo'
secret_type = 'ceph'
connection_info['data']['auth_enabled'] = True
connection_info['data']['auth_username'] = user
connection_info['data']['secret_type'] = secret_type
connection_info['data']['secret_uuid'] = uuid
mount_device = "vde"
conf = libvirt_driver.connect_volume(connection_info, mount_device)
tree = conf.format_dom()
self.assertEqual(tree.get('type'), 'network')
self.assertEqual(tree.find('./source').get('protocol'), 'rbd')
rbd_name = '%s/%s' % (FLAGS.rbd_pool, name)
self.assertEqual(tree.find('./source').get('name'), rbd_name)
self.assertEqual(tree.find('./auth').get('username'), user)
self.assertEqual(tree.find('./auth/secret').get('type'), secret_type)
self.assertEqual(tree.find('./auth/secret').get('uuid'), uuid)
libvirt_driver.disconnect_volume(connection_info, mount_device)
connection_info = vol_driver.terminate_connection(vol, self.connr)
def test_libvirt_rbd_driver_auth_disabled(self):
vol_driver = volume_driver.RBDDriver()
libvirt_driver = volume.LibvirtNetVolumeDriver(self.fake_conn)
name = 'volume-00000001'
vol = {'id': 1, 'name': name}
connection_info = vol_driver.initialize_connection(vol, self.connr)
uuid = '875a8070-d0b9-4949-8b31-104d125c9a64'
user = 'foo'
secret_type = 'ceph'
connection_info['data']['auth_enabled'] = False
connection_info['data']['auth_username'] = user
connection_info['data']['secret_type'] = secret_type
connection_info['data']['secret_uuid'] = uuid
mount_device = "vde"
conf = libvirt_driver.connect_volume(connection_info, mount_device)
tree = conf.format_dom()
self.assertEqual(tree.get('type'), 'network')
self.assertEqual(tree.find('./source').get('protocol'), 'rbd')
rbd_name = '%s/%s' % (FLAGS.rbd_pool, name)
self.assertEqual(tree.find('./source').get('name'), rbd_name)
self.assertEqual(tree.find('./auth'), None)
libvirt_driver.disconnect_volume(connection_info, mount_device)
connection_info = vol_driver.terminate_connection(vol, self.connr)
def test_libvirt_lxc_volume(self):
self.stubs.Set(os.path, 'exists', lambda x: True)
vol_driver = volume_driver.ISCSIDriver()
libvirt_driver = volume.LibvirtISCSIVolumeDriver(self.fake_conn)
location = '10.0.2.15:3260'
name = 'volume-00000001'
iqn = 'iqn.2010-10.org.openstack:%s' % name
vol = {'id': 1,
'name': name,
'provider_auth': None,
'provider_location': '%s,fake %s' % (location, iqn)}
connection_info = vol_driver.initialize_connection(vol, self.connr)
mount_device = "vde"
conf = libvirt_driver.connect_volume(connection_info, mount_device)
tree = conf.format_dom()
dev_str = '/dev/disk/by-path/ip-%s-iscsi-%s-lun-1' % (location, iqn)
self.assertEqual(tree.get('type'), 'block')
self.assertEqual(tree.find('./source').get('dev'), dev_str)
libvirt_driver.disconnect_volume(connection_info, mount_device)
connection_info = vol_driver.terminate_connection(vol, self.connr)
def test_libvirt_nfs_driver(self):
# NOTE(vish) exists is to make driver assume connecting worked
mnt_base = '/mnt'
self.flags(nfs_mount_point_base=mnt_base)
libvirt_driver = volume_nfs.NfsVolumeDriver(self.fake_conn)
export_string = '192.168.1.1:/nfs/share1'
name = 'volume-00001'
export_mnt_base = os.path.join(mnt_base,
libvirt_driver.get_hash_str(export_string))
file_path = os.path.join(export_mnt_base, name)
connection_info = {'data': {'export': export_string, 'name': name}}
mount_device = "vde"
conf = libvirt_driver.connect_volume(connection_info, mount_device)
tree = conf.format_dom()
self.assertEqual(tree.get('type'), 'file')
self.assertEqual(tree.find('./source').get('file'), file_path)
libvirt_driver.disconnect_volume(connection_info, mount_device)
expected_commands = [
('stat', export_mnt_base),
('mount', '-t', 'nfs', export_string, export_mnt_base)]
self.assertEqual(self.executes, expected_commands)
class CacheConcurrencyTestCase(test.TestCase):
def setUp(self):
super(CacheConcurrencyTestCase, self).setUp()
self.flags(instances_path='nova.compute.manager')
# 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(FLAGS.instances_path, 'locks')
utils.ensure_tree(self.lock_path)
def fake_exists(fname):
basedir = os.path.join(FLAGS.instances_path, FLAGS.base_dir_name)
if fname == basedir or fname == self.lock_path:
return True
return False
def fake_execute(*args, **kwargs):
pass
def fake_extend(image, size):
pass
self.stubs.Set(os.path, 'exists', fake_exists)
self.stubs.Set(utils, 'execute', fake_execute)
self.stubs.Set(imagebackend.disk, 'extend', fake_extend)
imagebackend.libvirt_utils = fake_libvirt_utils
def tearDown(self):
imagebackend.libvirt_utils = libvirt_utils
# Make sure the lock_path for this test is cleaned up
if os.path.exists(self.lock_path):
shutil.rmtree(self.lock_path)
super(CacheConcurrencyTestCase, self).tearDown()
def test_same_fname_concurrency(self):
"""Ensures that the same fname cache runs at a sequentially"""
backend = imagebackend.Backend(False)
wait1 = eventlet.event.Event()
done1 = eventlet.event.Event()
thr1 = eventlet.spawn(backend.image('instance', 'name').cache,
_concurrency, 'fname', None, wait=wait1, done=done1)
wait2 = eventlet.event.Event()
done2 = eventlet.event.Event()
thr2 = eventlet.spawn(backend.image('instance', 'name').cache,
_concurrency, 'fname', None, 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"""
backend = imagebackend.Backend(False)
wait1 = eventlet.event.Event()
done1 = eventlet.event.Event()
thr1 = eventlet.spawn(backend.image('instance', 'name').cache,
_concurrency, 'fname2', None, wait=wait1, done=done1)
wait2 = eventlet.event.Event()
done2 = eventlet.event.Event()
thr2 = eventlet.spawn(backend.image('instance', 'name').cache,
_concurrency, 'fname1', None, wait=wait2, done=done2)
wait2.send()
eventlet.sleep(0)
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 ""
class LibvirtConnTestCase(test.TestCase):
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()
self.flags(instances_path='')
self.flags(libvirt_snapshots_directory='')
self.call_libvirt_dependant_setup = False
libvirt_driver.libvirt_utils = fake_libvirt_utils
def fake_extend(image, size):
pass
self.stubs.Set(libvirt_driver.disk, 'extend', fake_extend)
nova.tests.image.fake.stub_out_image_service(self.stubs)
def tearDown(self):
libvirt_driver.libvirt_utils = libvirt_utils
nova.tests.image.fake.FakeImageService_reset()
super(LibvirtConnTestCase, self).tearDown()
test_instance = {'memory_kb': '1024000',
'basepath': '/some/path',
'bridge_name': 'br100',
'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
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.test_libvirt.FakeVolumeDriver'
self.flags(libvirt_volume_drivers=[volume_driver])
fake = FakeLibvirtDriver()
# Customizing above fake if necessary
for key, val in kwargs.items():
fake.__setattr__(key, val)
self.flags(libvirt_vif_driver="nova.tests.fake_network.FakeVIFDriver")
self.mox.StubOutWithMock(libvirt_driver.LibvirtDriver, '_conn')
libvirt_driver.LibvirtDriver._conn = fake
def fake_lookup(self, instance_name):
return FakeVirtDomain()
def fake_execute(self, *args):
open(args[-1], "a").close()
def create_service(self, **kwargs):
service_ref = {'host': kwargs.get('host', 'dummy'),
'binary': 'nova-compute',
'topic': 'compute',
'report_count': 0,
'availability_zone': 'zone'}
return db.service_create(context.get_admin_context(), service_ref)
def test_get_connector(self):
initiator = 'fake.initiator.iqn'
ip = 'fakeip'
host = 'fakehost'
self.flags(my_ip=ip)
self.flags(host=host)
conn = libvirt_driver.LibvirtDriver(True)
expected = {
'ip': ip,
'initiator': initiator,
'host': host
}
volume = {
'id': 'fake'
}
result = conn.get_volume_connector(volume)
self.assertDictMatch(expected, result)
def test_get_guest_config(self):
conn = libvirt_driver.LibvirtDriver(True)
instance_ref = db.instance_create(self.context, self.test_instance)
cfg = conn.get_guest_config(instance_ref,
_fake_network_info(self.stubs, 1),
None, None)
self.assertEquals(cfg.acpi, True)
self.assertEquals(cfg.apic, True)
self.assertEquals(cfg.memory, 1024 * 1024 * 2)
self.assertEquals(cfg.vcpus, 1)
self.assertEquals(cfg.os_type, vm_mode.HVM)
self.assertEquals(cfg.os_boot_dev, "hd")
self.assertEquals(cfg.os_root, None)
self.assertEquals(len(cfg.devices), 7)
self.assertEquals(type(cfg.devices[0]),
config.LibvirtConfigGuestDisk)
self.assertEquals(type(cfg.devices[1]),
config.LibvirtConfigGuestDisk)
self.assertEquals(type(cfg.devices[2]),
config.LibvirtConfigGuestInterface)
self.assertEquals(type(cfg.devices[3]),
config.LibvirtConfigGuestSerial)
self.assertEquals(type(cfg.devices[4]),
config.LibvirtConfigGuestSerial)
self.assertEquals(type(cfg.devices[5]),
config.LibvirtConfigGuestInput)
self.assertEquals(type(cfg.devices[6]),
config.LibvirtConfigGuestGraphics)
self.assertEquals(type(cfg.clock),
config.LibvirtConfigGuestClock)
self.assertEquals(cfg.clock.offset, "utc")
self.assertEquals(len(cfg.clock.timers), 2)
self.assertEquals(type(cfg.clock.timers[0]),
config.LibvirtConfigGuestTimer)
self.assertEquals(type(cfg.clock.timers[1]),
config.LibvirtConfigGuestTimer)
self.assertEquals(cfg.clock.timers[0].name, "pit")
self.assertEquals(cfg.clock.timers[0].tickpolicy,
"delay")
self.assertEquals(cfg.clock.timers[1].name, "rtc")
self.assertEquals(cfg.clock.timers[1].tickpolicy,
"catchup")
def test_get_guest_config_with_two_nics(self):
conn = libvirt_driver.LibvirtDriver(True)
instance_ref = db.instance_create(self.context, self.test_instance)
cfg = conn.get_guest_config(instance_ref,
_fake_network_info(self.stubs, 2),
None, None)
self.assertEquals(cfg.acpi, True)
self.assertEquals(cfg.memory, 1024 * 1024 * 2)
self.assertEquals(cfg.vcpus, 1)
self.assertEquals(cfg.os_type, vm_mode.HVM)
self.assertEquals(cfg.os_boot_dev, "hd")
self.assertEquals(cfg.os_root, None)
self.assertEquals(len(cfg.devices), 8)
self.assertEquals(type(cfg.devices[0]),
config.LibvirtConfigGuestDisk)
self.assertEquals(type(cfg.devices[1]),
config.LibvirtConfigGuestDisk)
self.assertEquals(type(cfg.devices[2]),
config.LibvirtConfigGuestInterface)
self.assertEquals(type(cfg.devices[3]),
config.LibvirtConfigGuestInterface)
self.assertEquals(type(cfg.devices[4]),
config.LibvirtConfigGuestSerial)
self.assertEquals(type(cfg.devices[5]),
config.LibvirtConfigGuestSerial)
self.assertEquals(type(cfg.devices[6]),
config.LibvirtConfigGuestInput)
self.assertEquals(type(cfg.devices[7]),
config.LibvirtConfigGuestGraphics)
def test_get_guest_config_with_root_device_name(self):
self.flags(libvirt_type='uml')
conn = libvirt_driver.LibvirtDriver(True)
instance_ref = db.instance_create(self.context, self.test_instance)
cfg = conn.get_guest_config(instance_ref, [], None, None,
{'root_device_name': 'dev/vdb'})
self.assertEquals(cfg.acpi, False)
self.assertEquals(cfg.memory, 1024 * 1024 * 2)
self.assertEquals(cfg.vcpus, 1)
self.assertEquals(cfg.os_type, "uml")
self.assertEquals(cfg.os_boot_dev, None)
self.assertEquals(cfg.os_root, 'dev/vdb')
self.assertEquals(len(cfg.devices), 3)
self.assertEquals(type(cfg.devices[0]),
config.LibvirtConfigGuestDisk)
self.assertEquals(type(cfg.devices[1]),
config.LibvirtConfigGuestDisk)
self.assertEquals(type(cfg.devices[2]),
config.LibvirtConfigGuestConsole)
def test_get_guest_config_with_block_device(self):
conn = libvirt_driver.LibvirtDriver(True)
instance_ref = db.instance_create(self.context, self.test_instance)
conn_info = {'driver_volume_type': 'fake'}
info = {'block_device_mapping': [
{'connection_info': conn_info, 'mount_device': '/dev/vdc'},
{'connection_info': conn_info, 'mount_device': '/dev/vdd'}]}
cfg = conn.get_guest_config(instance_ref, [], None, None, info)
self.assertEquals(type(cfg.devices[2]),
config.LibvirtConfigGuestDisk)
self.assertEquals(cfg.devices[2].target_dev, 'vdc')
self.assertEquals(type(cfg.devices[3]),
config.LibvirtConfigGuestDisk)
self.assertEquals(cfg.devices[3].target_dev, 'vdd')
def test_get_guest_cpu_config_none(self):
self.flags(libvirt_cpu_mode="none")
conn = libvirt_driver.LibvirtDriver(True)
instance_ref = db.instance_create(self.context, self.test_instance)
conf = conn.get_guest_config(instance_ref,
_fake_network_info(self.stubs, 1),
None, None)
self.assertEquals(conf.cpu, None)
def test_get_guest_cpu_config_default_kvm(self):
self.flags(libvirt_type="kvm",
libvirt_cpu_mode=None)
def get_lib_version_stub(self):
return (0 * 1000 * 1000) + (9 * 1000) + 11
self.stubs.Set(libvirt.virConnect,
"getLibVersion",
get_lib_version_stub)
conn = libvirt_driver.LibvirtDriver(True)
instance_ref = db.instance_create(self.context, self.test_instance)
conf = conn.get_guest_config(instance_ref,
_fake_network_info(self.stubs, 1),
None, None)
self.assertEquals(type(conf.cpu),
config.LibvirtConfigGuestCPU)
self.assertEquals(conf.cpu.mode, "host-model")
self.assertEquals(conf.cpu.model, None)
def test_get_guest_cpu_config_default_uml(self):
self.flags(libvirt_type="uml",
libvirt_cpu_mode=None)
conn = libvirt_driver.LibvirtDriver(True)
instance_ref = db.instance_create(self.context, self.test_instance)
conf = conn.get_guest_config(instance_ref,
_fake_network_info(self.stubs, 1),
None, None)
self.assertEquals(conf.cpu, None)
def test_get_guest_cpu_config_default_lxc(self):
self.flags(libvirt_type="lxc",
libvirt_cpu_mode=None)
conn = libvirt_driver.LibvirtDriver(True)
instance_ref = db.instance_create(self.context, self.test_instance)
conf = conn.get_guest_config(instance_ref,
_fake_network_info(self.stubs, 1),
None, None)
self.assertEquals(conf.cpu, None)
def test_get_guest_cpu_config_host_passthrough_new(self):
def get_lib_version_stub(self):
return (0 * 1000 * 1000) + (9 * 1000) + 11
self.stubs.Set(libvirt.virConnect,
"getLibVersion",
get_lib_version_stub)
conn = libvirt_driver.LibvirtDriver(True)
instance_ref = db.instance_create(self.context, self.test_instance)
self.flags(libvirt_cpu_mode="host-passthrough")
conf = conn.get_guest_config(instance_ref,
_fake_network_info(self.stubs, 1),
None, None)
self.assertEquals(type(conf.cpu),
config.LibvirtConfigGuestCPU)
self.assertEquals(conf.cpu.mode, "host-passthrough")
self.assertEquals(conf.cpu.model, None)
def test_get_guest_cpu_config_host_model_new(self):
def get_lib_version_stub(self):
return (0 * 1000 * 1000) + (9 * 1000) + 11
self.stubs.Set(libvirt.virConnect,
"getLibVersion",
get_lib_version_stub)
conn = libvirt_driver.LibvirtDriver(True)
instance_ref = db.instance_create(self.context, self.test_instance)
self.flags(libvirt_cpu_mode="host-model")
conf = conn.get_guest_config(instance_ref,
_fake_network_info(self.stubs, 1),
None, None)
self.assertEquals(type(conf.cpu),
config.LibvirtConfigGuestCPU)
self.assertEquals(conf.cpu.mode, "host-model")
self.assertEquals(conf.cpu.model, None)
def test_get_guest_cpu_config_custom_new(self):
def get_lib_version_stub(self):
return (0 * 1000 * 1000) + (9 * 1000) + 11
self.stubs.Set(libvirt.virConnect,
"getLibVersion",
get_lib_version_stub)
conn = libvirt_driver.LibvirtDriver(True)
instance_ref = db.instance_create(self.context, self.test_instance)
self.flags(libvirt_cpu_mode="custom")
self.flags(libvirt_cpu_model="Penryn")
conf = conn.get_guest_config(instance_ref,
_fake_network_info(self.stubs, 1),
None, None)
self.assertEquals(type(conf.cpu),
config.LibvirtConfigGuestCPU)
self.assertEquals(conf.cpu.mode, "custom")
self.assertEquals(conf.cpu.model, "Penryn")
def test_get_guest_cpu_config_host_passthrough_old(self):
def get_lib_version_stub(self):
return (0 * 1000 * 1000) + (9 * 1000) + 7
self.stubs.Set(libvirt.virConnect, "getLibVersion",
get_lib_version_stub)
conn = libvirt_driver.LibvirtDriver(True)
instance_ref = db.instance_create(self.context, self.test_instance)
self.flags(libvirt_cpu_mode="host-passthrough")
self.assertRaises(exception.NovaException,
conn.get_guest_config,
instance_ref,
_fake_network_info(self.stubs, 1),
None, None)
def test_get_guest_cpu_config_host_model_old(self):
def get_lib_version_stub(self):
return (0 * 1000 * 1000) + (9 * 1000) + 7
# Ensure we have a predictable host CPU
def get_host_capabilities_stub(self):
cpu = config.LibvirtConfigGuestCPU()
cpu.model = "Opteron_G4"
cpu.vendor = "AMD"
cpu.features.append(config.LibvirtConfigGuestCPUFeature("tm2"))
cpu.features.append(config.LibvirtConfigGuestCPUFeature("ht"))
caps = config.LibvirtConfigCaps()
caps.host = config.LibvirtConfigCapsHost()
caps.host.cpu = cpu
return caps
self.stubs.Set(libvirt.virConnect,
"getLibVersion",
get_lib_version_stub)
self.stubs.Set(libvirt_driver.LibvirtDriver,
"get_host_capabilities",
get_host_capabilities_stub)
conn = libvirt_driver.LibvirtDriver(True)
instance_ref = db.instance_create(self.context, self.test_instance)
self.flags(libvirt_cpu_mode="host-model")
conf = conn.get_guest_config(instance_ref,
_fake_network_info(self.stubs, 1),
None, None)
self.assertEquals(type(conf.cpu),
config.LibvirtConfigGuestCPU)
self.assertEquals(conf.cpu.mode, None)
self.assertEquals(conf.cpu.model, "Opteron_G4")
self.assertEquals(conf.cpu.vendor, "AMD")
self.assertEquals(len(conf.cpu.features), 2)
self.assertEquals(conf.cpu.features[0].name, "tm2")
self.assertEquals(conf.cpu.features[1].name, "ht")
def test_get_guest_cpu_config_custom_old(self):
def get_lib_version_stub(self):
return (0 * 1000 * 1000) + (9 * 1000) + 7
self.stubs.Set(libvirt.virConnect,
"getLibVersion",
get_lib_version_stub)
conn = libvirt_driver.LibvirtDriver(True)
instance_ref = db.instance_create(self.context, self.test_instance)
self.flags(libvirt_cpu_mode="custom")
self.flags(libvirt_cpu_model="Penryn")
conf = conn.get_guest_config(instance_ref,
_fake_network_info(self.stubs, 1),
None, None)
self.assertEquals(type(conf.cpu),
config.LibvirtConfigGuestCPU)
self.assertEquals(conf.cpu.mode, None)
self.assertEquals(conf.cpu.model, "Penryn")
def test_xml_and_uri_no_ramdisk_no_kernel(self):
instance_data = dict(self.test_instance)
self._check_xml_and_uri(instance_data,
expect_kernel=False, expect_ramdisk=False)
def test_xml_and_uri_no_ramdisk_no_kernel_xen_hvm(self):
instance_data = dict(self.test_instance)
instance_data.update({'vm_mode': vm_mode.HVM})
self._check_xml_and_uri(instance_data, expect_kernel=False,
expect_ramdisk=False, expect_xen_hvm=True)
def test_xml_and_uri_no_ramdisk_no_kernel_xen_pv(self):
instance_data = dict(self.test_instance)
instance_data.update({'vm_mode': vm_mode.XEN})
self._check_xml_and_uri(instance_data, expect_kernel=False,
expect_ramdisk=False, expect_xen_hvm=False,
xen_only=True)
def test_xml_and_uri_no_ramdisk(self):
instance_data = dict(self.test_instance)
instance_data['kernel_id'] = 'aki-deadbeef'
self._check_xml_and_uri(instance_data,
expect_kernel=True, expect_ramdisk=False)
def test_xml_and_uri_no_kernel(self):
instance_data = dict(self.test_instance)
instance_data['ramdisk_id'] = 'ari-deadbeef'
self._check_xml_and_uri(instance_data,
expect_kernel=False, expect_ramdisk=False)
def test_xml_and_uri(self):
instance_data = dict(self.test_instance)
instance_data['ramdisk_id'] = 'ari-deadbeef'
instance_data['kernel_id'] = 'aki-deadbeef'
self._check_xml_and_uri(instance_data,
expect_kernel=True, expect_ramdisk=True)
def test_xml_and_uri_rescue(self):
instance_data = dict(self.test_instance)
instance_data['ramdisk_id'] = 'ari-deadbeef'
instance_data['kernel_id'] = 'aki-deadbeef'
self._check_xml_and_uri(instance_data, expect_kernel=True,
expect_ramdisk=True, rescue=instance_data)
def test_xml_and_uri_rescue_no_kernel_no_ramdisk(self):
instance_data = dict(self.test_instance)
self._check_xml_and_uri(instance_data, expect_kernel=False,
expect_ramdisk=False, rescue=instance_data)
def test_xml_and_uri_rescue_no_kernel(self):
instance_data = dict(self.test_instance)
instance_data['ramdisk_id'] = 'aki-deadbeef'
self._check_xml_and_uri(instance_data, expect_kernel=False,
expect_ramdisk=True, rescue=instance_data)
def test_xml_and_uri_rescue_no_ramdisk(self):
instance_data = dict(self.test_instance)
instance_data['kernel_id'] = 'aki-deadbeef'
self._check_xml_and_uri(instance_data, expect_kernel=True,
expect_ramdisk=False, rescue=instance_data)
def test_xml_uuid(self):
instance_data = dict(self.test_instance)
self._check_xml_and_uuid(instance_data)
def test_lxc_container_and_uri(self):
instance_data = dict(self.test_instance)
self._check_xml_and_container(instance_data)
def test_xml_disk_prefix(self):
instance_data = dict(self.test_instance)
self._check_xml_and_disk_prefix(instance_data)
def test_xml_disk_driver(self):
instance_data = dict(self.test_instance)
self._check_xml_and_disk_driver(instance_data)
def test_xml_disk_bus_virtio(self):
self._check_xml_and_disk_bus({"disk_format": "raw"},
None,
(("disk", "virtio", "vda"),))
def test_xml_disk_bus_ide(self):
self._check_xml_and_disk_bus({"disk_format": "iso"},
None,
(("cdrom", "ide", "hda"),))
def test_xml_disk_bus_ide_and_virtio(self):
swap = {'device_name': '/dev/vdc',
'swap_size': 1}
ephemerals = [{'num': 0,
'virtual_name': 'ephemeral0',
'device_name': '/dev/vdb',
'size': 1}]
block_device_info = {
'swap': swap,
'ephemerals': ephemerals}
self._check_xml_and_disk_bus({"disk_format": "iso"},
block_device_info,
(("cdrom", "ide", "hda"),
("disk", "virtio", "vdb"),
("disk", "virtio", "vdc")))
def test_list_instances(self):
self.mox.StubOutWithMock(libvirt_driver.LibvirtDriver, '_conn')
libvirt_driver.LibvirtDriver._conn.lookupByID = self.fake_lookup
libvirt_driver.LibvirtDriver._conn.numOfDomains = lambda: 2
libvirt_driver.LibvirtDriver._conn.listDomainsID = lambda: [0, 1]
self.mox.ReplayAll()
conn = libvirt_driver.LibvirtDriver(False)
instances = conn.list_instances()
# Only one should be listed, since domain with ID 0 must be skiped
self.assertEquals(len(instances), 1)
def test_list_instances_when_instance_deleted(self):
def fake_lookup(instance_name):
raise libvirt.libvirtError("we deleted an instance!")
self.mox.StubOutWithMock(libvirt_driver.LibvirtDriver, '_conn')
libvirt_driver.LibvirtDriver._conn.lookupByID = fake_lookup
libvirt_driver.LibvirtDriver._conn.numOfDomains = lambda: 1
libvirt_driver.LibvirtDriver._conn.listDomainsID = lambda: [0, 1]
self.mox.ReplayAll()
conn = libvirt_driver.LibvirtDriver(False)
instances = conn.list_instances()
# None should be listed, since we fake deleted the last one
self.assertEquals(len(instances), 0)