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nova/nova/tests/unit/virt/xenapi/test_xenapi.py

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# Copyright (c) 2010 Citrix Systems, Inc.
#
# 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.
"""Test suite for XenAPI."""
import ast
import base64
import contextlib
import copy
import functools
import os
import re
import mock
from os_xenapi.client import host_management
from os_xenapi.client import session
from os_xenapi.client import XenAPI
from oslo_concurrency import lockutils
from oslo_config import fixture as config_fixture
from oslo_log import log as logging
from oslo_serialization import jsonutils
from oslo_utils.fixture import uuidsentinel as uuids
from oslo_utils import uuidutils
import testtools
from nova.compute import api as compute_api
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_states
import nova.conf
from nova import context
from nova import crypto
from nova.db import api as db
from nova import exception
from nova.network import model as network_model
from nova import objects
from nova.objects import base
from nova.objects import fields as obj_fields
from nova import test
from nova.tests import fixtures
from nova.tests.unit.api.openstack import fakes
from nova.tests.unit.db import fakes as db_fakes
from nova.tests.unit import fake_diagnostics
from nova.tests.unit import fake_flavor
from nova.tests.unit import fake_instance
from nova.tests.unit import fake_network
from nova.tests.unit import fake_processutils
import nova.tests.unit.image.fake as fake_image
from nova.tests.unit import matchers
from nova.tests.unit.objects import test_aggregate
from nova.tests.unit.objects import test_diagnostics
from nova.tests.unit import utils as test_utils
from nova.tests.unit.virt.xenapi import stubs
from nova.virt import fake
from nova.virt.xenapi import agent
from nova.virt.xenapi import driver as xenapi_conn
from nova.virt.xenapi import fake as xenapi_fake
from nova.virt.xenapi import host
from nova.virt.xenapi.image import glance
from nova.virt.xenapi import pool
from nova.virt.xenapi import pool_states
from nova.virt.xenapi import vm_utils
from nova.virt.xenapi import vmops
from nova.virt.xenapi import volume_utils
LOG = logging.getLogger(__name__)
CONF = nova.conf.CONF
IMAGE_MACHINE = uuids.image_ref
IMAGE_KERNEL = uuids.image_kernel_id
IMAGE_RAMDISK = uuids.image_ramdisk_id
IMAGE_RAW = uuids.image_raw
IMAGE_VHD = uuids.image_vhd
IMAGE_ISO = uuids.image_iso
IMAGE_IPXE_ISO = uuids.image_ipxe_iso
IMAGE_FROM_VOLUME = uuids.image_from_volume
IMAGE_FIXTURES = {
IMAGE_MACHINE: {
'image_meta': {'name': 'fakemachine', 'size': 0,
'disk_format': 'ami',
'container_format': 'ami',
'id': 'fake-image'},
},
IMAGE_KERNEL: {
'image_meta': {'name': 'fakekernel', 'size': 0,
'disk_format': 'aki',
'container_format': 'aki',
'id': 'fake-kernel'},
},
IMAGE_RAMDISK: {
'image_meta': {'name': 'fakeramdisk', 'size': 0,
'disk_format': 'ari',
'container_format': 'ari',
'id': 'fake-ramdisk'},
},
IMAGE_RAW: {
'image_meta': {'name': 'fakeraw', 'size': 0,
'disk_format': 'raw',
'container_format': 'bare',
'id': 'fake-image-raw'},
},
IMAGE_VHD: {
'image_meta': {'name': 'fakevhd', 'size': 0,
'disk_format': 'vhd',
'container_format': 'ovf',
'id': 'fake-image-vhd'},
},
IMAGE_ISO: {
'image_meta': {'name': 'fakeiso', 'size': 0,
'disk_format': 'iso',
'container_format': 'bare',
'id': 'fake-image-iso'},
},
IMAGE_IPXE_ISO: {
'image_meta': {'name': 'fake_ipxe_iso', 'size': 0,
'disk_format': 'iso',
'container_format': 'bare',
'id': 'fake-image-pxe',
'properties': {'ipxe_boot': 'true'}},
},
IMAGE_FROM_VOLUME: {
'image_meta': {'name': 'fake_ipxe_iso',
'id': 'fake-image-volume',
'properties': {'foo': 'bar'}},
},
}
def get_session():
return xenapi_fake.SessionBase('http://localhost', 'root', 'test_pass')
def set_image_fixtures():
image_service = fake_image.FakeImageService()
image_service.images.clear()
for image_id, image_meta in IMAGE_FIXTURES.items():
image_meta = image_meta['image_meta']
image_meta['id'] = image_id
image_service.create(None, image_meta)
def get_fake_device_info():
# FIXME: 'sr_uuid', 'introduce_sr_keys', sr_type and vdi_uuid
# can be removed from the dict when LP bug #1087308 is fixed
fake_vdi_ref = xenapi_fake.create_vdi('fake-vdi', None)
fake_vdi_uuid = xenapi_fake.get_record('VDI', fake_vdi_ref)['uuid']
fake = {'block_device_mapping':
[{'connection_info': {'driver_volume_type': 'iscsi',
'data': {'sr_uuid': 'falseSR',
'introduce_sr_keys': ['sr_type'],
'sr_type': 'iscsi',
'vdi_uuid': fake_vdi_uuid,
'target_discovered': False,
'target_iqn': 'foo_iqn:foo_volid',
'target_portal': 'localhost:3260',
'volume_id': 'foo_volid',
'target_lun': 1,
'auth_password': 'my-p@55w0rd',
'auth_username': 'johndoe',
'auth_method': u'CHAP'}, },
'mount_device': 'vda',
'delete_on_termination': False}, ],
'root_device_name': '/dev/sda',
'ephemerals': [],
'swap': None, }
return fake
def stub_vm_utils_with_vdi_attached(function):
"""vm_utils.with_vdi_attached needs to be stubbed out because it
calls down to the filesystem to attach a vdi. This provides a
decorator to handle that.
"""
@functools.wraps(function)
def decorated_function(self, *args, **kwargs):
@contextlib.contextmanager
def fake_vdi_attached(*args, **kwargs):
fake_dev = 'fakedev'
yield fake_dev
def fake_image_download(*args, **kwargs):
pass
orig_vdi_attached = vm_utils.vdi_attached
orig_image_download = fake_image._FakeImageService.download
try:
vm_utils.vdi_attached = fake_vdi_attached
fake_image._FakeImageService.download = fake_image_download
return function(self, *args, **kwargs)
finally:
fake_image._FakeImageService.download = orig_image_download
vm_utils.vdi_attached = orig_vdi_attached
return decorated_function
def create_instance_with_system_metadata(context, instance_values):
inst = objects.Instance(context=context,
system_metadata={})
for k, v in instance_values.items():
setattr(inst, k, v)
inst.flavor = objects.Flavor.get_by_id(context,
instance_values['instance_type_id'])
inst.old_flavor = None
inst.new_flavor = None
inst.create()
inst.pci_devices = objects.PciDeviceList(objects=[])
return inst
class XenAPIVolumeTestCase(stubs.XenAPITestBaseNoDB):
"""Unit tests for Volume operations."""
def setUp(self):
super(XenAPIVolumeTestCase, self).setUp()
self.fixture = self.useFixture(config_fixture.Config(lockutils.CONF))
self.fixture.config(disable_process_locking=True,
group='oslo_concurrency')
self.flags(connection_url='http://localhost',
connection_password='test_pass',
group='xenserver')
self.instance = fake_instance.fake_db_instance(name='foo')
@classmethod
def _make_connection_info(cls):
target_iqn = 'iqn.2010-10.org.openstack:volume-00000001'
return {'driver_volume_type': 'iscsi',
'data': {'volume_id': 1,
'target_iqn': target_iqn,
'target_portal': '127.0.0.1:3260,fake',
'target_lun': None,
'auth_method': 'CHAP',
'auth_username': 'username',
'auth_password': 'password'}}
def test_attach_volume(self):
# This shows how to test Ops classes' methods.
stubs.stubout_session(self, stubs.FakeSessionForVolumeTests)
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
vm = xenapi_fake.create_vm(self.instance['name'], 'Running')
conn_info = self._make_connection_info()
self.assertIsNone(
conn.attach_volume(None, conn_info, self.instance, '/dev/sdc'))
# check that the VM has a VBD attached to it
# Get XenAPI record for VBD
vbds = xenapi_fake.get_all('VBD')
vbd = xenapi_fake.get_record('VBD', vbds[0])
vm_ref = vbd['VM']
self.assertEqual(vm_ref, vm)
def test_attach_volume_raise_exception(self):
# This shows how to test when exceptions are raised.
stubs.stubout_session(self, stubs.FakeSessionForVolumeFailedTests)
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
xenapi_fake.create_vm(self.instance['name'], 'Running')
self.assertRaises(exception.VolumeDriverNotFound,
conn.attach_volume,
None, {'driver_volume_type': 'nonexist'},
self.instance, '/dev/sdc')
# FIXME(sirp): convert this to use XenAPITestBaseNoDB
class XenAPIVMTestCase(stubs.XenAPITestBase,
test_diagnostics.DiagnosticsComparisonMixin):
"""Unit tests for VM operations."""
def setUp(self):
super(XenAPIVMTestCase, self).setUp()
self.fixture = self.useFixture(config_fixture.Config(lockutils.CONF))
self.fixture.config(disable_process_locking=True,
group='oslo_concurrency')
self.flags(instance_name_template='%d')
self.flags(connection_url='http://localhost',
connection_password='test_pass',
group='xenserver')
db_fakes.stub_out_db_instance_api(self)
xenapi_fake.create_network('fake', 'fake_br1')
stubs.stubout_session(self, stubs.FakeSessionForVMTests)
self.stubout_get_this_vm_uuid()
self.stub_out_vm_methods()
fake_processutils.stub_out_processutils_execute(self)
self.user_id = 'fake'
self.project_id = fakes.FAKE_PROJECT_ID
self.context = context.RequestContext(self.user_id, self.project_id)
self.conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
self.conn._session.is_local_connection = False
fake_image.stub_out_image_service(self)
set_image_fixtures()
self.stubout_image_service_download()
self.stubout_stream_disk()
self.stub_out('nova.virt.xenapi.vmops.VMOps._inject_instance_metadata',
lambda self, instance, vm: None)
def fake_safe_copy_vdi(session, sr_ref, instance, vdi_to_copy_ref):
name_label = "fakenamelabel"
disk_type = "fakedisktype"
virtual_size = 777
return vm_utils.create_vdi(
session, sr_ref, instance, name_label, disk_type,
virtual_size)
self.stub_out('nova.virt.xenapi.vm_utils._safe_copy_vdi',
fake_safe_copy_vdi)
def fake_unpause_and_wait(self, vm_ref, instance, power_on):
self._update_last_dom_id(vm_ref)
self.stub_out('nova.virt.xenapi.vmops.VMOps._unpause_and_wait',
fake_unpause_and_wait)
def tearDown(self):
fake_image.FakeImageService_reset()
super(XenAPIVMTestCase, self).tearDown()
def stubout_instance_snapshot(self):
self.stub_out('nova.virt.xenapi.vm_utils._fetch_image',
lambda context, session, instance, name_label,
image, type, image_handler: {
'root': dict(uuid=stubs._make_fake_vdi(),
file=None),
'kernel': dict(uuid=stubs._make_fake_vdi(),
file=None),
'ramdisk': dict(uuid=stubs._make_fake_vdi(),
file=None)})
self.stub_out('nova.virt.xenapi.vm_utils._wait_for_vhd_coalesce',
lambda *args: ("fakeparent", "fakebase"))
def stubout_image_service_download(self):
self.stub_out('nova.tests.unit.image.fake._FakeImageService.download',
lambda *args, **kwargs: None)
def stubout_stream_disk(self):
self.stub_out('nova.virt.xenapi.vm_utils._stream_disk',
lambda *args, **kwargs: None)
def stubout_is_snapshot(self):
"""Always returns true
xenapi fake driver does not create vmrefs for snapshots.
"""
self.stub_out('nova.virt.xenapi.vm_utils.is_snapshot',
lambda *args: True)
def stubout_fetch_disk_image(self, raise_failure=False):
"""Simulates a failure in fetch image_glance_disk."""
def _fake_fetch_disk_image(context, session, instance, name_label,
image, image_type):
if raise_failure:
raise XenAPI.Failure("Test Exception raised by "
"fake fetch_image_glance_disk")
elif image_type == vm_utils.ImageType.KERNEL:
filename = "kernel"
elif image_type == vm_utils.ImageType.RAMDISK:
filename = "ramdisk"
else:
filename = "unknown"
vdi_type = vm_utils.ImageType.to_string(image_type)
return {vdi_type: dict(uuid=None, file=filename)}
self.stub_out('nova.virt.xenapi.vm_utils._fetch_disk_image',
_fake_fetch_disk_image)
def stubout_create_vm(self):
"""Simulates a failure in create_vm."""
def f(*args):
raise XenAPI.Failure("Test Exception raised by fake create_vm")
self.stub_out('nova.virt.xenapi.vm_utils.create_vm', f)
def stubout_attach_disks(self):
"""Simulates a failure in _attach_disks."""
def f(*args):
raise XenAPI.Failure("Test Exception raised by fake _attach_disks")
self.stub_out('nova.virt.xenapi.vmops.VMOps._attach_disks', f)
def stub_out_vm_methods(self):
self.stub_out('nova.virt.xenapi.vmops.VMOps._acquire_bootlock',
lambda self, vm: None)
self.stub_out('nova.virt.xenapi.vmops.VMOps._release_bootlock',
lambda self, vm: None)
self.stub_out('nova.virt.xenapi.vm_utils.generate_ephemeral',
lambda *args: None)
self.stub_out('nova.virt.xenapi.vm_utils._wait_for_device',
lambda session, dev, dom0, max_seconds: None)
def test_init_host(self):
session = get_session()
vm = vm_utils._get_this_vm_ref(session)
# Local root disk
vdi0 = xenapi_fake.create_vdi('compute', None)
vbd0 = xenapi_fake.create_vbd(vm, vdi0)
# Instance VDI
vdi1 = xenapi_fake.create_vdi('instance-aaaa', None,
other_config={'nova_instance_uuid': 'aaaa'})
xenapi_fake.create_vbd(vm, vdi1)
# Only looks like instance VDI
vdi2 = xenapi_fake.create_vdi('instance-bbbb', None)
vbd2 = xenapi_fake.create_vbd(vm, vdi2)
self.conn.init_host(None)
self.assertEqual(set(xenapi_fake.get_all('VBD')), set([vbd0, vbd2]))
@mock.patch.object(objects.Instance, 'name',
new=mock.PropertyMock(return_value='foo'))
@mock.patch.object(vm_utils, 'lookup', return_value=True)
def test_instance_exists(self, mock_lookup):
instance = objects.Instance(uuid=uuids.instance)
self.assertTrue(self.conn.instance_exists(instance))
mock_lookup.assert_called_once_with(mock.ANY, 'foo')
@mock.patch.object(objects.Instance, 'name',
new=mock.PropertyMock(return_value='bar'))
@mock.patch.object(vm_utils, 'lookup', return_value=None)
def test_instance_not_exists(self, mock_lookup):
instance = objects.Instance(uuid=uuids.instance)
self.assertFalse(self.conn.instance_exists(instance))
mock_lookup.assert_called_once_with(mock.ANY, 'bar')
def test_list_instances_0(self):
instances = self.conn.list_instances()
self.assertEqual(instances, [])
def test_list_instance_uuids_0(self):
instance_uuids = self.conn.list_instance_uuids()
self.assertEqual(instance_uuids, [])
def test_list_instance_uuids(self):
uuids = []
for x in range(1, 4):
instance = self._create_instance()
uuids.append(instance['uuid'])
instance_uuids = self.conn.list_instance_uuids()
self.assertEqual(len(uuids), len(instance_uuids))
self.assertEqual(set(uuids), set(instance_uuids))
def test_get_rrd_server(self):
self.flags(connection_url='myscheme://myaddress/',
group='xenserver')
server_info = vm_utils._get_rrd_server()
self.assertEqual(server_info[0], 'myscheme')
self.assertEqual(server_info[1], 'myaddress')
expected_raw_diagnostics = {
'vbd_xvdb_write': '0.0',
'memory_target': '4294967296.0000',
'memory_internal_free': '1415564.0000',
'memory': '4294967296.0000',
'vbd_xvda_write': '0.0',
'cpu0': '0.0042',
'vif_0_tx': '287.4134',
'vbd_xvda_read': '0.0',
'vif_0_rx': '1816.0144',
'vif_2_rx': '0.0',
'vif_2_tx': '0.0',
'vbd_xvdb_read': '0.0',
'last_update': '1328795567',
}
@mock.patch.object(vm_utils, '_get_rrd')
def test_get_diagnostics(self, mock_get_rrd):
def fake_get_rrd(host, vm_uuid):
path = os.path.dirname(os.path.realpath(__file__))
with open(os.path.join(path, 'vm_rrd.xml')) as f:
return re.sub(r'\s', '', f.read())
mock_get_rrd.side_effect = fake_get_rrd
expected = self.expected_raw_diagnostics
instance = self._create_instance()
actual = self.conn.get_diagnostics(instance)
self.assertThat(actual, matchers.DictMatches(expected))
def test_get_instance_diagnostics(self):
expected = fake_diagnostics.fake_diagnostics_obj(
config_drive=False,
state='running',
driver='xenapi',
cpu_details=[{'id': 0, 'utilisation': 11},
{'id': 1, 'utilisation': 22},
{'id': 2, 'utilisation': 33},
{'id': 3, 'utilisation': 44}],
nic_details=[{'mac_address': 'DE:AD:BE:EF:00:01',
'rx_rate': 50,
'tx_rate': 100}],
disk_details=[{'read_bytes': 50, 'write_bytes': 100}],
memory_details={'maximum': 8192, 'used': 3072})
instance = self._create_instance(obj=True)
actual = self.conn.get_instance_diagnostics(instance)
self.assertDiagnosticsEqual(expected, actual)
def _test_get_instance_diagnostics_failure(self, **kwargs):
instance = self._create_instance(obj=True)
with mock.patch.object(xenapi_fake.SessionBase, 'VM_query_data_source',
**kwargs):
actual = self.conn.get_instance_diagnostics(instance)
expected = fake_diagnostics.fake_diagnostics_obj(
config_drive=False,
state='running',
driver='xenapi',
cpu_details=[{'id': 0}, {'id': 1}, {'id': 2}, {'id': 3}],
nic_details=[{'mac_address': 'DE:AD:BE:EF:00:01'}],
disk_details=[{}],
memory_details={'maximum': None, 'used': None})
self.assertDiagnosticsEqual(expected, actual)
def test_get_instance_diagnostics_xenapi_exception(self):
self._test_get_instance_diagnostics_failure(
side_effect=XenAPI.Failure(''))
def test_get_instance_diagnostics_nan_value(self):
self._test_get_instance_diagnostics_failure(
return_value=float('NaN'))
def test_get_vnc_console(self):
instance = self._create_instance(obj=True)
session = get_session()
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
vm_ref = vm_utils.lookup(session, instance['name'])
console = conn.get_vnc_console(self.context, instance)
# Note(sulo): We don't care about session id in test
# they will always differ so strip that out
actual_path = console.internal_access_path.split('&')[0]
expected_path = "/console?ref=%s" % str(vm_ref)
self.assertEqual(expected_path, actual_path)
def test_get_vnc_console_for_rescue(self):
instance = self._create_instance(obj=True)
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
rescue_vm = xenapi_fake.create_vm(instance['name'] + '-rescue',
'Running')
# Set instance state to rescued
instance['vm_state'] = 'rescued'
console = conn.get_vnc_console(self.context, instance)
# Note(sulo): We don't care about session id in test
# they will always differ so strip that out
actual_path = console.internal_access_path.split('&')[0]
expected_path = "/console?ref=%s" % str(rescue_vm)
self.assertEqual(expected_path, actual_path)
def test_get_vnc_console_instance_not_ready(self):
instance = self._create_instance(obj=True, spawn=False)
instance.vm_state = 'building'
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
self.assertRaises(exception.InstanceNotFound,
conn.get_vnc_console, self.context, instance)
def test_get_vnc_console_rescue_not_ready(self):
instance = self._create_instance(obj=True, spawn=False)
instance.vm_state = 'rescued'
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
self.assertRaises(exception.InstanceNotReady,
conn.get_vnc_console, self.context, instance)
@mock.patch.object(vm_utils, 'create_vbd')
def test_instance_snapshot_fails_with_no_primary_vdi(
self, mock_create_vbd):
def create_bad_vbd(session, vm_ref, vdi_ref, userdevice,
vbd_type='disk', read_only=False, bootable=False,
osvol=False):
vbd_rec = {'VM': vm_ref,
'VDI': vdi_ref,
'userdevice': 'fake',
'currently_attached': False}
vbd_ref = xenapi_fake._create_object('VBD', vbd_rec)
xenapi_fake.after_VBD_create(vbd_ref, vbd_rec)
return vbd_ref
mock_create_vbd.side_effect = create_bad_vbd
self.stubout_instance_snapshot()
instance = self._create_instance()
image_id = "my_snapshot_id"
self.assertRaises(exception.NovaException, self.conn.snapshot,
self.context, instance, image_id,
lambda *args, **kwargs: None)
@mock.patch.object(glance.GlanceStore, 'upload_image')
def test_instance_snapshot(self, mock_upload_image):
expected_calls = [
{'args': (),
'kwargs':
{'task_state': task_states.IMAGE_PENDING_UPLOAD}},
{'args': (),
'kwargs':
{'task_state': task_states.IMAGE_UPLOADING,
'expected_state': task_states.IMAGE_PENDING_UPLOAD}}]
func_call_matcher = matchers.FunctionCallMatcher(expected_calls)
image_id = "my_snapshot_id"
self.stubout_instance_snapshot()
self.stubout_is_snapshot()
instance = self._create_instance()
self.fake_upload_called = False
def fake_image_upload(ctx, session, inst, img_id, vdi_uuids):
self.fake_upload_called = True
self.assertEqual(ctx, self.context)
self.assertEqual(inst, instance)
self.assertIsInstance(vdi_uuids, list)
self.assertEqual(img_id, image_id)
mock_upload_image.side_effect = fake_image_upload
self.conn.snapshot(self.context, instance, image_id,
func_call_matcher.call)
# Ensure VM was torn down
vm_labels = []
for vm_ref in xenapi_fake.get_all('VM'):
vm_rec = xenapi_fake.get_record('VM', vm_ref)
if not vm_rec["is_control_domain"]:
vm_labels.append(vm_rec["name_label"])
self.assertEqual(vm_labels, [instance['name']])
# Ensure VBDs were torn down
vbd_labels = []
for vbd_ref in xenapi_fake.get_all('VBD'):
vbd_rec = xenapi_fake.get_record('VBD', vbd_ref)
vbd_labels.append(vbd_rec["vm_name_label"])
self.assertEqual(vbd_labels, [instance['name']])
# Ensure task states changed in correct order
self.assertIsNone(func_call_matcher.match())
# Ensure VDIs were torn down
for vdi_ref in xenapi_fake.get_all('VDI'):
vdi_rec = xenapi_fake.get_record('VDI', vdi_ref)
name_label = vdi_rec["name_label"]
self.assertFalse(name_label.endswith('snapshot'))
self.assertTrue(self.fake_upload_called)
def create_vm_record(self, conn, os_type, name):
instances = conn.list_instances()
self.assertEqual(instances, [name])
# Get Nova record for VM
vm_info = conn.get_info({'name': name})
# Get XenAPI record for VM
vms = [rec for rec
in xenapi_fake.get_all_records('VM').values()
if not rec['is_control_domain']]
vm = vms[0]
self.vm_info = vm_info
self.vm = vm
def check_vm_record(self, conn, instance_type_id, check_injection):
flavor = objects.Flavor.get_by_id(self.context, instance_type_id)
mem_kib = int(flavor['memory_mb']) << 10
mem_bytes = str(mem_kib << 10)
vcpus = flavor['vcpus']
vcpu_weight = flavor['vcpu_weight']
self.assertEqual(self.vm['memory_static_max'], mem_bytes)
self.assertEqual(self.vm['memory_dynamic_max'], mem_bytes)
self.assertEqual(self.vm['memory_dynamic_min'], mem_bytes)
self.assertEqual(self.vm['VCPUs_max'], str(vcpus))
self.assertEqual(self.vm['VCPUs_at_startup'], str(vcpus))
if vcpu_weight is None:
self.assertEqual(self.vm['VCPUs_params'], {})
else:
self.assertEqual(self.vm['VCPUs_params'],
{'weight': str(vcpu_weight), 'cap': '0'})
# Check that the VM is running according to Nova
self.assertEqual(self.vm_info.state, power_state.RUNNING)
# Check that the VM is running according to XenAPI.
self.assertEqual(self.vm['power_state'], 'Running')
if check_injection:
xenstore_data = self.vm['xenstore_data']
self.assertNotIn('vm-data/hostname', xenstore_data)
key = 'vm-data/networking/DEADBEEF0001'
xenstore_value = xenstore_data[key]
tcpip_data = ast.literal_eval(xenstore_value)
self.assertJsonEqual({'broadcast': '192.168.1.255',
'dns': ['192.168.1.4', '192.168.1.3'],
'gateway': '192.168.1.1',
'gateway_v6': '2001:db8:0:1::1',
'ip6s': [{'enabled': '1',
'ip': '2001:db8:0:1:dcad:beff:feef:1',
'netmask': 64,
'gateway': '2001:db8:0:1::1'}],
'ips': [{'enabled': '1',
'ip': '192.168.1.100',
'netmask': '255.255.255.0',
'gateway': '192.168.1.1'}],
'label': 'test1',
'mac': 'DE:AD:BE:EF:00:01'}, tcpip_data)
def check_vm_params_for_windows(self):
self.assertEqual(self.vm['platform']['nx'], 'true')
self.assertEqual(self.vm['HVM_boot_params'], {'order': 'dc'})
self.assertEqual(self.vm['HVM_boot_policy'], 'BIOS order')
# check that these are not set
self.assertEqual(self.vm['PV_args'], '')
self.assertEqual(self.vm['PV_bootloader'], '')
self.assertEqual(self.vm['PV_kernel'], '')
self.assertEqual(self.vm['PV_ramdisk'], '')
def check_vm_params_for_linux(self):
self.assertEqual(self.vm['platform']['nx'], 'false')
self.assertEqual(self.vm['PV_args'], '')
self.assertEqual(self.vm['PV_bootloader'], 'pygrub')
# check that these are not set
self.assertEqual(self.vm['PV_kernel'], '')
self.assertEqual(self.vm['PV_ramdisk'], '')
self.assertEqual(self.vm['HVM_boot_params'], {})
self.assertEqual(self.vm['HVM_boot_policy'], '')
def check_vm_params_for_linux_with_external_kernel(self):
self.assertEqual(self.vm['platform']['nx'], 'false')
self.assertEqual(self.vm['PV_args'], 'root=/dev/xvda1')
self.assertNotEqual(self.vm['PV_kernel'], '')
self.assertNotEqual(self.vm['PV_ramdisk'], '')
# check that these are not set
self.assertEqual(self.vm['HVM_boot_params'], {})
self.assertEqual(self.vm['HVM_boot_policy'], '')
def _list_vdis(self):
session = get_session()
return session.call_xenapi('VDI.get_all')
def _list_vms(self):
session = get_session()
return session.call_xenapi('VM.get_all')
def _check_vdis(self, start_list, end_list):
for vdi_ref in end_list:
if vdi_ref not in start_list:
vdi_rec = xenapi_fake.get_record('VDI', vdi_ref)
# If the cache is turned on then the base disk will be
# there even after the cleanup
if 'other_config' in vdi_rec:
if 'image-id' not in vdi_rec['other_config']:
self.fail('Found unexpected VDI:%s' % vdi_ref)
else:
self.fail('Found unexpected VDI:%s' % vdi_ref)
@mock.patch.object(vmops.VMOps, '_inject_instance_metadata')
def _test_spawn(self, image_ref, kernel_id, ramdisk_id,
mock_inject_instance_metadata,
instance_type_id="3", os_type="linux",
hostname="test", architecture="x86-64", instance_id=1,
injected_files=None, check_injection=False,
create_record=True, empty_dns=False,
block_device_info=None,
key_data=None):
if injected_files is None:
injected_files = []
if create_record:
flavor = objects.Flavor.get_by_id(self.context,
instance_type_id)
instance = objects.Instance(context=self.context)
instance.project_id = self.project_id
instance.user_id = self.user_id
instance.image_ref = image_ref
instance.kernel_id = kernel_id
instance.ramdisk_id = ramdisk_id
instance.root_gb = flavor.root_gb
instance.ephemeral_gb = flavor.ephemeral_gb
instance.instance_type_id = instance_type_id
instance.os_type = os_type
instance.hostname = hostname
instance.key_data = key_data
instance.architecture = architecture
instance.system_metadata = {}
instance.flavor = flavor
instance.create()
else:
instance = objects.Instance.get_by_id(self.context, instance_id,
expected_attrs=['flavor'])
network_info = fake_network.fake_get_instance_nw_info(self)
if empty_dns:
# NOTE(tr3buchet): this is a terrible way to do this...
network_info[0]['network']['subnets'][0]['dns'] = []
image_meta = objects.ImageMeta.from_dict(
IMAGE_FIXTURES[image_ref]["image_meta"])
self.conn.spawn(self.context, instance, image_meta, injected_files,
'herp', {}, network_info, block_device_info)
self.create_vm_record(self.conn, os_type, instance['name'])
self.check_vm_record(self.conn, instance_type_id, check_injection)
self.assertEqual(instance['os_type'], os_type)
self.assertEqual(instance['architecture'], architecture)
@mock.patch.object(session.XenAPISession, 'call_plugin_serialized')
@mock.patch.object(vm_utils, 'get_sr_path', return_value='/sr/path')
def test_spawn_ipxe_iso_success(self, mock_get_sr_path,
mock_call_plugin_serialized):
self.flags(ipxe_network_name='test1',
ipxe_boot_menu_url='http://boot.example.com',
ipxe_mkisofs_cmd='/root/mkisofs',
group='xenserver')
self._test_spawn(IMAGE_IPXE_ISO, None, None)
mock_get_sr_path.assert_called_once_with(mock.ANY)
mock_call_plugin_serialized.assert_has_calls([
mock.call('ipxe.py', 'inject', '/sr/path', mock.ANY,
'http://boot.example.com', '192.168.1.100',
'255.255.255.0', '192.168.1.1', '192.168.1.3',
'/root/mkisofs'),
mock.call('partition_utils.py', 'make_partition',
'fakedev', '2048', '-')])
@mock.patch.object(session.XenAPISession, 'call_plugin_serialized')
def test_spawn_ipxe_iso_no_network_name(self, mock_call_plugin_serialized):
self.flags(ipxe_network_name=None,
ipxe_boot_menu_url='http://boot.example.com',
group='xenserver')
self._test_spawn(IMAGE_IPXE_ISO, None, None)
self._check_call_plugin_serialized(mock_call_plugin_serialized)
@mock.patch.object(session.XenAPISession, 'call_plugin_serialized')
def test_spawn_ipxe_iso_no_boot_menu_url(
self, mock_call_plugin_serialized):
self.flags(ipxe_network_name='test1',
ipxe_boot_menu_url=None,
group='xenserver')
self._test_spawn(IMAGE_IPXE_ISO, None, None)
self._check_call_plugin_serialized(mock_call_plugin_serialized)
def _check_call_plugin_serialized(self, mock_call_plugin_serialized):
vifs = xenapi_fake.get_all_records('VIF')
iface_id = vifs[list(vifs)[0]]['other_config']['neutron-port-id']
def _get_qbr_name(iface_id):
return ("qbr" + iface_id)[:network_model.NIC_NAME_LEN]
def _get_veth_pair_names(iface_id):
return (("qvb%s" % iface_id)[:network_model.NIC_NAME_LEN],
("qvo%s" % iface_id)[:network_model.NIC_NAME_LEN])
def _get_patch_port_pair_names(iface_id):
return (("vif%s" % iface_id)[:network_model.NIC_NAME_LEN],
("tap%s" % iface_id)[:network_model.NIC_NAME_LEN])
# ipxe inject shouldn't be called
call1 = mock.call('partition_utils.py', 'make_partition', 'fakedev',
'2048', '-')
linux_br_name = _get_qbr_name(iface_id)
qvb_name, qvo_name = _get_veth_pair_names(iface_id)
patch_port1, tap_name = _get_patch_port_pair_names(iface_id)
args = {'cmd': 'ip_link_get_dev',
'args': {'device_name': linux_br_name}
}
call2 = mock.call('xenhost.py', 'network_config', args)
args = {'cmd': 'ip_link_get_dev',
'args': {'device_name': qvo_name}
}
call3 = mock.call('xenhost.py', 'network_config', args)
args = {'cmd': 'ip_link_get_dev',
'args': {'device_name': tap_name}
}
call4 = mock.call('xenhost.py', 'network_config', args)
mock_call_plugin_serialized.assert_has_calls([call1,
call2,
call3,
call4])
@mock.patch.object(session.XenAPISession, 'call_plugin_serialized')
def test_spawn_ipxe_iso_unknown_network_name(
self, mock_call_plugin_serialized):
self.flags(ipxe_network_name='test2',
ipxe_boot_menu_url='http://boot.example.com',
group='xenserver')
self._test_spawn(IMAGE_IPXE_ISO, None, None)
self._check_call_plugin_serialized(mock_call_plugin_serialized)
def test_spawn_empty_dns(self):
# Test spawning with an empty dns list.
self._test_spawn(IMAGE_VHD, None, None,
os_type="linux", architecture="x86-64",
empty_dns=True)
self.check_vm_params_for_linux()
def test_spawn_not_enough_memory(self):
self.assertRaises(exception.InsufficientFreeMemory, self._test_spawn,
IMAGE_MACHINE, IMAGE_KERNEL,
IMAGE_RAMDISK, instance_type_id="4") # m1.xlarge
def test_spawn_fail_cleanup_1(self):
"""Simulates an error while downloading an image.
Verifies that the VM and VDIs created are properly cleaned up.
"""
vdi_recs_start = self._list_vdis()
start_vms = self._list_vms()
self.stubout_fetch_disk_image(raise_failure=True)
self.assertRaises(XenAPI.Failure, self._test_spawn,
IMAGE_MACHINE, IMAGE_KERNEL, IMAGE_RAMDISK)
# No additional VDI should be found.
vdi_recs_end = self._list_vdis()
end_vms = self._list_vms()
self._check_vdis(vdi_recs_start, vdi_recs_end)
# No additional VMs should be found.
self.assertEqual(start_vms, end_vms)
def test_spawn_fail_cleanup_2(self):
"""Simulates an error while creating VM record.
Verifies that the VM and VDIs created are properly cleaned up.
"""
vdi_recs_start = self._list_vdis()
start_vms = self._list_vms()
self.stubout_create_vm()
self.assertRaises(XenAPI.Failure, self._test_spawn,
IMAGE_MACHINE, IMAGE_KERNEL, IMAGE_RAMDISK)
# No additional VDI should be found.
vdi_recs_end = self._list_vdis()
end_vms = self._list_vms()
self._check_vdis(vdi_recs_start, vdi_recs_end)
# No additional VMs should be found.
self.assertEqual(start_vms, end_vms)
def test_spawn_fail_cleanup_3(self):
"""Simulates an error while attaching disks.
Verifies that the VM and VDIs created are properly cleaned up.
"""
self.stubout_attach_disks()
vdi_recs_start = self._list_vdis()
start_vms = self._list_vms()
self.assertRaises(XenAPI.Failure, self._test_spawn,
IMAGE_MACHINE, IMAGE_KERNEL, IMAGE_RAMDISK)
# No additional VDI should be found.
vdi_recs_end = self._list_vdis()
end_vms = self._list_vms()
self._check_vdis(vdi_recs_start, vdi_recs_end)
# No additional VMs should be found.
self.assertEqual(start_vms, end_vms)
def test_spawn_raw_glance(self):
self._test_spawn(IMAGE_RAW, None, None, os_type=None)
self.check_vm_params_for_windows()
def test_spawn_vhd_glance_linux(self):
self._test_spawn(IMAGE_VHD, None, None,
os_type="linux", architecture="x86-64")
self.check_vm_params_for_linux()
@mock.patch('nova.privsep.fs.mkfs')
def test_spawn_vhd_glance_windows(self, fake_mkfs):
self._test_spawn(IMAGE_VHD, None, None,
os_type="windows", architecture="i386",
instance_type_id=5)
self.check_vm_params_for_windows()
def test_spawn_iso_glance(self):
self._test_spawn(IMAGE_ISO, None, None,
os_type="windows", architecture="i386")
self.check_vm_params_for_windows()
@mock.patch.object(vm_utils, '_fetch_disk_image')
def test_spawn_glance(self, mock_fetch_disk_image):
def fake_fetch_disk_image(context, session, instance, name_label,
image_id, image_type):
sr_ref = vm_utils.safe_find_sr(session)
image_type_str = vm_utils.ImageType.to_string(image_type)
vdi_ref = vm_utils.create_vdi(session, sr_ref, instance,
name_label, image_type_str, "20")
vdi_role = vm_utils.ImageType.get_role(image_type)
vdi_uuid = session.call_xenapi("VDI.get_uuid", vdi_ref)
return {vdi_role: dict(uuid=vdi_uuid, file=None)}
mock_fetch_disk_image.side_effect = fake_fetch_disk_image
self._test_spawn(IMAGE_MACHINE,
IMAGE_KERNEL,
IMAGE_RAMDISK)
self.check_vm_params_for_linux_with_external_kernel()
def test_spawn_boot_from_volume_no_glance_image_meta(self):
dev_info = get_fake_device_info()
self._test_spawn(IMAGE_FROM_VOLUME, None, None,
block_device_info=dev_info)
def test_spawn_boot_from_volume_with_image_meta(self):
dev_info = get_fake_device_info()
self._test_spawn(IMAGE_VHD, None, None,
block_device_info=dev_info)
@testtools.skipIf(test_utils.is_osx(),
'IPv6 pretty-printing broken on OSX, see bug 1409135')
@mock.patch.object(nova.privsep.path, 'readlink')
@mock.patch.object(nova.privsep.path, 'writefile')
@mock.patch.object(nova.privsep.path, 'makedirs')
@mock.patch.object(nova.privsep.path, 'chown')
@mock.patch.object(nova.privsep.path, 'chmod')
@mock.patch.object(nova.privsep.fs, 'mount', return_value=(None, None))
@mock.patch.object(nova.privsep.fs, 'umount')
def test_spawn_netinject_file(self, umount, mount, chmod, chown, mkdir,
write_file, read_link):
self.flags(flat_injected=True)
db_fakes.stub_out_db_instance_api(self, injected=True)
self._test_spawn(IMAGE_MACHINE,
IMAGE_KERNEL,
IMAGE_RAMDISK,
check_injection=True)
read_link.assert_called()
mkdir.assert_called()
chown.assert_called()
chmod.assert_called()
write_file.assert_called()
@testtools.skipIf(test_utils.is_osx(),
'IPv6 pretty-printing broken on OSX, see bug 1409135')
def test_spawn_netinject_xenstore(self):
db_fakes.stub_out_db_instance_api(self, injected=True)
self._tee_executed = False
def _mount_handler(cmd, *ignore_args, **ignore_kwargs):
# When mounting, create real files under the mountpoint to simulate
# files in the mounted filesystem
# mount point will be the last item of the command list
self._tmpdir = cmd[len(cmd) - 1]
LOG.debug('Creating files in %s to simulate guest agent',
self._tmpdir)
os.makedirs(os.path.join(self._tmpdir, 'usr', 'sbin'))
# Touch the file using open
open(os.path.join(self._tmpdir, 'usr', 'sbin',
'xe-update-networking'), 'w').close()
return '', ''
def _umount_handler(cmd, *ignore_args, **ignore_kwargs):
# Umount would normally make files in the mounted filesystem
# disappear, so do that here
LOG.debug('Removing simulated guest agent files in %s',
self._tmpdir)
os.remove(os.path.join(self._tmpdir, 'usr', 'sbin',
'xe-update-networking'))
os.rmdir(os.path.join(self._tmpdir, 'usr', 'sbin'))
os.rmdir(os.path.join(self._tmpdir, 'usr'))
return '', ''
def _tee_handler(cmd, *ignore_args, **ignore_kwargs):
self._tee_executed = True
return '', ''
fake_processutils.fake_execute_set_repliers([
(r'mount', _mount_handler),
(r'umount', _umount_handler),
(r'tee.*interfaces', _tee_handler)])
self._test_spawn(IMAGE_MACHINE, IMAGE_KERNEL,
IMAGE_RAMDISK, check_injection=True)
# tee must not run in this case, where an injection-capable
# guest agent is detected
self.assertFalse(self._tee_executed)
@mock.patch.object(vmops.VMOps, '_inject_auto_disk_config')
def test_spawn_injects_auto_disk_config_to_xenstore(
self, mock_inject_auto_disk_config):
instance = self._create_instance(spawn=False, obj=True)
image_meta = objects.ImageMeta.from_dict(
IMAGE_FIXTURES[IMAGE_MACHINE]["image_meta"])
self.conn.spawn(self.context, instance, image_meta, [], 'herp', {}, '')
mock_inject_auto_disk_config.assert_called_once_with(instance,
mock.ANY)
def test_spawn_with_network_qos(self):
self._create_instance()
for vif_ref in xenapi_fake.get_all('VIF'):
vif_rec = xenapi_fake.get_record('VIF', vif_ref)
self.assertEqual(vif_rec['qos_algorithm_type'], '')
self.assertEqual(vif_rec['qos_algorithm_params'], {})
@mock.patch.object(crypto, 'ssh_encrypt_text')
@mock.patch.object(stubs.FakeSessionForVMTests,
'_plugin_agent_inject_file')
def test_spawn_ssh_key_injection(self, mock_plugin_agent_inject_file,
mock_ssh_encrypt_text):
# Test spawning with key_data on an instance. Should use
# agent file injection.
self.flags(use_agent_default=True,
group='xenserver')
actual_injected_files = []
def fake_inject_file(method, args):
path = base64.b64decode(args['b64_path'])
contents = base64.b64decode(args['b64_contents'])
actual_injected_files.append((path, contents))
return jsonutils.dumps({'returncode': '0', 'message': 'success'})
mock_plugin_agent_inject_file.side_effect = fake_inject_file
def fake_encrypt_text(sshkey, new_pass):
self.assertEqual("ssh-rsa fake_keydata", sshkey)
return "fake"
mock_ssh_encrypt_text.side_effect = fake_encrypt_text
expected_data = (b'\n# The following ssh key was injected by '
b'Nova\nssh-rsa fake_keydata\n')
injected_files = [(b'/root/.ssh/authorized_keys', expected_data)]
self._test_spawn(IMAGE_VHD, None, None,
os_type="linux", architecture="x86-64",
key_data='ssh-rsa fake_keydata')
self.assertEqual(actual_injected_files, injected_files)
@mock.patch.object(crypto, 'ssh_encrypt_text',
side_effect=NotImplementedError("Should not be called"))
@mock.patch.object(stubs.FakeSessionForVMTests,
'_plugin_agent_inject_file')
def test_spawn_ssh_key_injection_non_rsa(
self, mock_plugin_agent_inject_file, mock_ssh_encrypt_text):
# Test spawning with key_data on an instance. Should use
# agent file injection.
self.flags(use_agent_default=True,
group='xenserver')
actual_injected_files = []
def fake_inject_file(method, args):
path = base64.b64decode(args['b64_path'])
contents = base64.b64decode(args['b64_contents'])
actual_injected_files.append((path, contents))
return jsonutils.dumps({'returncode': '0', 'message': 'success'})
mock_plugin_agent_inject_file.side_effect = fake_inject_file
expected_data = (b'\n# The following ssh key was injected by '
b'Nova\nssh-dsa fake_keydata\n')
injected_files = [(b'/root/.ssh/authorized_keys', expected_data)]
self._test_spawn(IMAGE_VHD, None, None,
os_type="linux", architecture="x86-64",
key_data='ssh-dsa fake_keydata')
self.assertEqual(actual_injected_files, injected_files)
@mock.patch.object(stubs.FakeSessionForVMTests,
'_plugin_agent_inject_file')
def test_spawn_injected_files(self, mock_plugin_agent_inject_file):
# Test spawning with injected_files.
self.flags(use_agent_default=True,
group='xenserver')
actual_injected_files = []
def fake_inject_file(method, args):
path = base64.b64decode(args['b64_path'])
contents = base64.b64decode(args['b64_contents'])
actual_injected_files.append((path, contents))
return jsonutils.dumps({'returncode': '0', 'message': 'success'})
mock_plugin_agent_inject_file.side_effect = fake_inject_file
injected_files = [(b'/tmp/foo', b'foobar')]
self._test_spawn(IMAGE_VHD, None, None,
os_type="linux", architecture="x86-64",
injected_files=injected_files)
self.check_vm_params_for_linux()
self.assertEqual(actual_injected_files, injected_files)
@mock.patch('nova.db.api.agent_build_get_by_triple')
def test_spawn_agent_upgrade(self, mock_get):
self.flags(use_agent_default=True,
group='xenserver')
mock_get.return_value = {"version": "1.1.0", "architecture": "x86-64",
"hypervisor": "xen", "os": "windows",
"url": "url", "md5hash": "asdf",
'created_at': None, 'updated_at': None,
'deleted_at': None, 'deleted': False,
'id': 1}
self._test_spawn(IMAGE_VHD, None, None,
os_type="linux", architecture="x86-64")
@mock.patch('nova.db.api.agent_build_get_by_triple')
def test_spawn_agent_upgrade_fails_silently(self, mock_get):
mock_get.return_value = {"version": "1.1.0", "architecture": "x86-64",
"hypervisor": "xen", "os": "windows",
"url": "url", "md5hash": "asdf",
'created_at': None, 'updated_at': None,
'deleted_at': None, 'deleted': False,
'id': 1}
self._test_spawn_fails_silently_with(exception.AgentError,
method="_plugin_agent_agentupdate", failure="fake_error")
@mock.patch.object(stubs.FakeSessionForVMTests,
'_plugin_agent_resetnetwork')
def test_spawn_with_resetnetwork_alternative_returncode(
self, mock_plugin_agent_resetnetwork):
self.flags(use_agent_default=True,
group='xenserver')
def fake_resetnetwork(method, args):
# NOTE(johngarbutt): as returned by FreeBSD and Gentoo
return jsonutils.dumps({'returncode': '500',
'message': 'success'})
mock_plugin_agent_resetnetwork.side_effect = fake_resetnetwork
self._test_spawn(IMAGE_VHD, None, None,
os_type="linux", architecture="x86-64")
self.assertTrue(mock_plugin_agent_resetnetwork.called)
@mock.patch.object(compute_utils, 'add_instance_fault_from_exc')
def _test_spawn_fails_silently_with(self, expected_exception_cls,
mock_add_instance_fault_from_exc,
method="_plugin_agent_version",
failure=None, value=None):
self.flags(use_agent_default=True,
agent_version_timeout=0,
group='xenserver')
def fake_agent_call(method, args):
if failure:
raise XenAPI.Failure([failure])
else:
return value
with mock.patch.object(stubs.FakeSessionForVMTests, method,
side_effect=fake_agent_call):
self._test_spawn(IMAGE_VHD, None, None,
os_type="linux", architecture="x86-64")
mock_add_instance_fault_from_exc.assert_called_once_with(
mock.ANY, mock.ANY, test.MatchType(expected_exception_cls),
exc_info=mock.ANY)
def test_spawn_fails_silently_with_agent_timeout(self):
self._test_spawn_fails_silently_with(exception.AgentTimeout,
failure="TIMEOUT:fake")
def test_spawn_fails_silently_with_agent_not_implemented(self):
self._test_spawn_fails_silently_with(exception.AgentNotImplemented,
failure="NOT IMPLEMENTED:fake")
def test_spawn_fails_silently_with_agent_error(self):
self._test_spawn_fails_silently_with(exception.AgentError,
failure="fake_error")
def test_spawn_fails_silently_with_agent_bad_return(self):
error = jsonutils.dumps({'returncode': -1, 'message': 'fake'})
self._test_spawn_fails_silently_with(exception.AgentError,
value=error)
def test_spawn_sets_last_dom_id(self):
self._test_spawn(IMAGE_VHD, None, None,
os_type="linux", architecture="x86-64")
self.assertEqual(self.vm['domid'],
self.vm['other_config']['last_dom_id'])
def test_rescue(self):
instance = self._create_instance(spawn=False, obj=True)
xenapi_fake.create_vm(instance['name'], 'Running')
session = get_session()
vm_ref = vm_utils.lookup(session, instance['name'])
swap_vdi_ref = xenapi_fake.create_vdi('swap', None)
root_vdi_ref = xenapi_fake.create_vdi('root', None)
eph1_vdi_ref = xenapi_fake.create_vdi('eph', None)
eph2_vdi_ref = xenapi_fake.create_vdi('eph', None)
vol_vdi_ref = xenapi_fake.create_vdi('volume', None)
xenapi_fake.create_vbd(vm_ref, swap_vdi_ref, userdevice=2)
xenapi_fake.create_vbd(vm_ref, root_vdi_ref, userdevice=0)
xenapi_fake.create_vbd(vm_ref, eph1_vdi_ref, userdevice=4)
xenapi_fake.create_vbd(vm_ref, eph2_vdi_ref, userdevice=5)
xenapi_fake.create_vbd(vm_ref, vol_vdi_ref, userdevice=6,
other_config={'osvol': True})
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
image_meta = objects.ImageMeta.from_dict(
{'id': IMAGE_VHD,
'disk_format': 'vhd',
'properties': {'vm_mode': 'xen'}})
conn.rescue(self.context, instance, [], image_meta, '', None)
vm = xenapi_fake.get_record('VM', vm_ref)
rescue_name = "%s-rescue" % vm["name_label"]
rescue_ref = vm_utils.lookup(session, rescue_name)
rescue_vm = xenapi_fake.get_record('VM', rescue_ref)
vdi_refs = {}
for vbd_ref in rescue_vm['VBDs']:
vbd = xenapi_fake.get_record('VBD', vbd_ref)
vdi_refs[vbd['VDI']] = vbd['userdevice']
self.assertEqual('1', vdi_refs[root_vdi_ref])
self.assertEqual('2', vdi_refs[swap_vdi_ref])
self.assertEqual('4', vdi_refs[eph1_vdi_ref])
self.assertEqual('5', vdi_refs[eph2_vdi_ref])
self.assertNotIn(vol_vdi_ref, vdi_refs)
def test_rescue_preserve_disk_on_failure(self):
# test that the original disk is preserved if rescue setup fails
# bug #1227898
instance = self._create_instance(obj=True)
session = get_session()
image_meta = objects.ImageMeta.from_dict(
{'id': IMAGE_VHD,
'disk_format': 'vhd',
'properties': {'vm_mode': 'xen'}})
vm_ref = vm_utils.lookup(session, instance['name'])
vdi_ref, vdi_rec = vm_utils.get_vdi_for_vm_safely(session, vm_ref)
# raise an error in the spawn setup process and trigger the
# undo manager logic:
with mock.patch.object(
self.conn._vmops, '_start',
side_effect=test.TestingException('Start Error')):
self.assertRaises(test.TestingException, self.conn.rescue,
self.context, instance, [], image_meta, '', [])
# confirm original disk still exists:
vdi_ref2, vdi_rec2 = vm_utils.get_vdi_for_vm_safely(session,
vm_ref)
self.assertEqual(vdi_ref, vdi_ref2)
self.assertEqual(vdi_rec['uuid'], vdi_rec2['uuid'])
def test_unrescue(self):
instance = self._create_instance(obj=True)
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
# Unrescue expects the original instance to be powered off
conn.power_off(instance)
xenapi_fake.create_vm(instance['name'] + '-rescue', 'Running')
conn.unrescue(instance, None)
def test_unrescue_not_in_rescue(self):
instance = self._create_instance(obj=True)
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
# Ensure that it will not unrescue a non-rescued instance.
self.assertRaises(exception.InstanceNotInRescueMode, conn.unrescue,
instance, None)
def test_finish_revert_migration(self):
instance = self._create_instance()
class VMOpsMock(object):
def __init__(self):
self.finish_revert_migration_called = False
def finish_revert_migration(self, context, instance, block_info,
power_on):
self.finish_revert_migration_called = True
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
conn._vmops = VMOpsMock()
conn.finish_revert_migration(self.context, instance, None, None)
self.assertTrue(conn._vmops.finish_revert_migration_called)
def test_reboot_hard(self):
instance = self._create_instance()
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
conn.reboot(self.context, instance, None, "HARD")
@mock.patch.object(compute_api.API, 'reboot')
def test_poll_rebooting_instances(self, mock_reboot):
instance = self._create_instance()
instances = [instance]
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
conn.poll_rebooting_instances(60, instances)
mock_reboot.assert_called_once_with(mock.ANY, mock.ANY, mock.ANY)
def test_reboot_soft(self):
instance = self._create_instance()
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
conn.reboot(self.context, instance, None, "SOFT")
def test_reboot_halted(self):
session = get_session()
instance = self._create_instance(spawn=False)
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
xenapi_fake.create_vm(instance['name'], 'Halted')
conn.reboot(self.context, instance, None, "SOFT")
vm_ref = vm_utils.lookup(session, instance['name'])
vm = xenapi_fake.get_record('VM', vm_ref)
self.assertEqual(vm['power_state'], 'Running')
def test_reboot_unknown_state(self):
instance = self._create_instance(spawn=False)
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
xenapi_fake.create_vm(instance['name'], 'Unknown')
self.assertRaises(XenAPI.Failure, conn.reboot, self.context,
instance, None, "SOFT")
def test_reboot_rescued(self):
instance = self._create_instance()
instance['vm_state'] = vm_states.RESCUED
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
real_result = vm_utils.lookup(conn._session, instance['name'])
with mock.patch.object(vm_utils, 'lookup',
return_value=real_result) as mock_lookup:
conn.reboot(self.context, instance, None, "SOFT")
mock_lookup.assert_called_once_with(conn._session,
instance['name'], True)
def test_get_console_output_succeeds(self):
def fake_get_console_output(instance):
self.assertEqual("instance", instance)
return "console_log"
with mock.patch.object(self.conn._vmops, 'get_console_output',
side_effect=fake_get_console_output):
self.assertEqual(
self.conn.get_console_output('context', "instance"),
"console_log")
def _test_maintenance_mode(self, find_host, find_aggregate):
real_call_xenapi = self.conn._session.call_xenapi
instance = self._create_instance(spawn=True)
api_calls = {}
# Record all the xenapi calls, and return a fake list of hosts
# for the host.get_all call
def fake_call_xenapi(self, method, *args):
api_calls[method] = args
if method == 'host.get_all':
return ['foo', 'bar', 'baz']
return real_call_xenapi(method, *args)
self.stub_out('os_xenapi.client.session.XenAPISession.call_xenapi',
fake_call_xenapi)
def fake_aggregate_get(context, host, key):
if find_aggregate:
return [test_aggregate.fake_aggregate]
else:
return []
self.stub_out('nova.objects.aggregate._get_by_host_from_db',
fake_aggregate_get)
def fake_host_find(context, session, src, dst):
if find_host:
return 'bar'
else:
raise exception.NoValidHost("I saw this one coming...")
self.stub_out('nova.virt.xenapi.host._host_find', fake_host_find)
result = self.conn.host_maintenance_mode('bar', 'on_maintenance')
self.assertEqual(result, 'on_maintenance')
# We expect the VM.pool_migrate call to have been called to
# migrate our instance to the 'bar' host
vm_ref = vm_utils.lookup(self.conn._session, instance['name'])
host_ref = "foo"
expected = (vm_ref, host_ref, {"live": "true"})
self.assertEqual(api_calls.get('VM.pool_migrate'), expected)
instance = db.instance_get_by_uuid(self.context, instance['uuid'])
self.assertEqual(instance['vm_state'], vm_states.ACTIVE)
self.assertEqual(instance['task_state'], task_states.MIGRATING)
def test_maintenance_mode(self):
self._test_maintenance_mode(True, True)
def test_maintenance_mode_no_host(self):
self.assertRaises(exception.NoValidHost,
self._test_maintenance_mode, False, True)
def test_maintenance_mode_no_aggregate(self):
self.assertRaises(exception.NotFound,
self._test_maintenance_mode, True, False)
@mock.patch.object(db, 'instance_get_all_by_host')
def test_uuid_find(self, mock_instance_get_all_by_host):
fake_inst = fake_instance.fake_db_instance(id=123)
fake_inst2 = fake_instance.fake_db_instance(id=456)
mock_instance_get_all_by_host.return_value = [fake_inst, fake_inst2]
expected_name = CONF.instance_name_template % fake_inst['id']
inst_uuid = host._uuid_find(self.context, fake_inst['host'],
expected_name)
self.assertEqual(inst_uuid, fake_inst['uuid'])
mock_instance_get_all_by_host.assert_called_once_with(
self.context, fake_inst['host'], columns_to_join=None)
def test_per_instance_usage_running(self):
instance = self._create_instance(spawn=True)
flavor = objects.Flavor.get_by_id(self.context, 3)
expected = {instance['uuid']: {'memory_mb': flavor['memory_mb'],
'uuid': instance['uuid']}}
actual = self.conn.get_per_instance_usage()
self.assertEqual(expected, actual)
# Paused instances still consume resources:
self.conn.pause(instance)
actual = self.conn.get_per_instance_usage()
self.assertEqual(expected, actual)
def test_per_instance_usage_suspended(self):
# Suspended instances do not consume memory:
instance = self._create_instance(spawn=True)
self.conn.suspend(self.context, instance)
actual = self.conn.get_per_instance_usage()
self.assertEqual({}, actual)
def test_per_instance_usage_halted(self):
instance = self._create_instance(spawn=True, obj=True)
self.conn.power_off(instance)
actual = self.conn.get_per_instance_usage()
self.assertEqual({}, actual)
def _create_instance(self, spawn=True, obj=False, **attrs):
"""Creates and spawns a test instance."""
instance_values = {
'uuid': uuidutils.generate_uuid(),
'display_name': 'host-',
'project_id': self.project_id,
'user_id': self.user_id,
'image_ref': IMAGE_MACHINE,
'kernel_id': IMAGE_KERNEL,
'ramdisk_id': IMAGE_RAMDISK,
'root_gb': 80,
'ephemeral_gb': 0,
'instance_type_id': '3', # m1.large
'os_type': 'linux',
'vm_mode': 'hvm',
'architecture': 'x86-64'}
instance_values.update(attrs)
instance = create_instance_with_system_metadata(self.context,
instance_values)
network_info = fake_network.fake_get_instance_nw_info(self)
image_meta = objects.ImageMeta.from_dict(
{'id': uuids.image_id,
'disk_format': 'vhd'})
if spawn:
self.conn.spawn(self.context, instance, image_meta, [], 'herp',
{}, network_info)
if obj:
return instance
return base.obj_to_primitive(instance)
@mock.patch.object(vm_utils, 'destroy_kernel_ramdisk')
@mock.patch.object(vm_utils, 'lookup_kernel_ramdisk',
return_value=('kernel', 'ramdisk'))
def test_destroy_clean_up_kernel_and_ramdisk(
self, mock_lookup_kernel_ramdisk, mock_destroy_kernel_ramdisk):
def fake_destroy_kernel_ramdisk(session, instance, kernel, ramdisk):
self.assertEqual("kernel", kernel)
self.assertEqual("ramdisk", ramdisk)
mock_destroy_kernel_ramdisk.side_effect = fake_destroy_kernel_ramdisk
instance = self._create_instance(spawn=True, obj=True)
network_info = fake_network.fake_get_instance_nw_info(self)
self.conn.destroy(self.context, instance, network_info)
vm_ref = vm_utils.lookup(self.conn._session, instance['name'])
self.assertIsNone(vm_ref)
self.assertTrue(mock_destroy_kernel_ramdisk.called)
class XenAPIDiffieHellmanTestCase(test.NoDBTestCase):
"""Unit tests for Diffie-Hellman code."""
def setUp(self):
super(XenAPIDiffieHellmanTestCase, self).setUp()
self.alice = agent.SimpleDH()
self.bob = agent.SimpleDH()
def test_shared(self):
alice_pub = self.alice.get_public()
bob_pub = self.bob.get_public()
alice_shared = self.alice.compute_shared(bob_pub)
bob_shared = self.bob.compute_shared(alice_pub)
self.assertEqual(alice_shared, bob_shared)
def _test_encryption(self, message):
enc = self.alice.encrypt(message)
self.assertFalse(enc.endswith('\n'))
dec = self.bob.decrypt(enc)
self.assertEqual(dec, message)
def test_encrypt_simple_message(self):
self._test_encryption('This is a simple message.')
def test_encrypt_message_with_newlines_at_end(self):
self._test_encryption('This message has a newline at the end.\n')
def test_encrypt_many_newlines_at_end(self):
self._test_encryption('Message with lotsa newlines.\n\n\n')
def test_encrypt_newlines_inside_message(self):
self._test_encryption('Message\nwith\ninterior\nnewlines.')
def test_encrypt_with_leading_newlines(self):
self._test_encryption('\n\nMessage with leading newlines.')
def test_encrypt_really_long_message(self):
self._test_encryption(''.join(['abcd' for i in range(1024)]))
# FIXME(sirp): convert this to use XenAPITestBaseNoDB
class XenAPIMigrateInstance(stubs.XenAPITestBase):
"""Unit test for verifying migration-related actions."""
REQUIRES_LOCKING = True
def setUp(self):
super(XenAPIMigrateInstance, self).setUp()
self.flags(connection_url='http://localhost',
connection_password='test_pass',
group='xenserver')
stubs.stubout_session(self, stubs.FakeSessionForVMTests)
db_fakes.stub_out_db_instance_api(self)
xenapi_fake.create_network('fake', 'fake_br1')
self.user_id = 'fake'
self.project_id = 'fake'
self.context = context.RequestContext(self.user_id, self.project_id)
self.instance_values = {
'project_id': self.project_id,
'user_id': self.user_id,
'image_ref': IMAGE_MACHINE,
'kernel_id': None,
'ramdisk_id': None,
'root_gb': 80,
'ephemeral_gb': 0,
'instance_type_id': '3', # m1.large
'os_type': 'linux',
'architecture': 'x86-64'}
migration_values = {
'source_compute': 'nova-compute',
'dest_compute': 'nova-compute',
'dest_host': '10.127.5.114',
'status': 'post-migrating',
'instance_uuid': '15f23e6a-cc6e-4d22-b651-d9bdaac316f7',
'old_instance_type_id': 5,
'new_instance_type_id': 1
}
self.migration = db.migration_create(
context.get_admin_context(), migration_values)
fake_processutils.stub_out_processutils_execute(self)
self.stub_out_migration_methods()
self.stubout_get_this_vm_uuid()
def fake_inject_instance_metadata(self, instance, vm):
pass
self.stub_out('nova.virt.xenapi.vmops.VMOps._inject_instance_metadata',
fake_inject_instance_metadata)
def fake_unpause_and_wait(self, vm_ref, instance, power_on):
pass
self.stub_out('nova.virt.xenapi.vmops.VMOps._unpause_and_wait',
fake_unpause_and_wait)
def stub_out_migration_methods(self):
fakesr = xenapi_fake.create_sr()
def fake_import_all_migrated_disks(session, instance,
import_root=True):
vdi_ref = xenapi_fake.create_vdi(instance['name'], fakesr)
vdi_rec = xenapi_fake.get_record('VDI', vdi_ref)
vdi_rec['other_config']['nova_disk_type'] = 'root'
return {"root": {'uuid': vdi_rec['uuid'], 'ref': vdi_ref},
"ephemerals": {}}
def fake_get_vdi(session, vm_ref, userdevice='0'):
vdi_ref_parent = xenapi_fake.create_vdi('derp-parent', fakesr)
vdi_rec_parent = xenapi_fake.get_record('VDI', vdi_ref_parent)
vdi_ref = fake.create_vdi('derp', fakesr,
sm_config={'vhd-parent': vdi_rec_parent['uuid']})
vdi_rec = session.call_xenapi("VDI.get_record", vdi_ref)
return vdi_ref, vdi_rec
self.stub_out('nova.virt.xenapi.vmops.VMOps._destroy',
lambda *args, **kwargs: None)
self.stub_out('nova.virt.xenapi.vmops.VMOps.'
'_wait_for_instance_to_start',
lambda self, *args: None)
self.stub_out('nova.virt.xenapi.vm_utils.import_all_migrated_disks',
fake_import_all_migrated_disks)
self.stub_out('nova.virt.xenapi.vm_utils.scan_default_sr',
lambda session, *args: fakesr)
self.stub_out('nova.virt.xenapi.vm_utils.get_vdi_for_vm_safely',
fake_get_vdi)
self.stub_out('nova.virt.xenapi.vm_utils.get_sr_path',
lambda *args: 'fake')
self.stub_out('nova.virt.xenapi.vm_utils.generate_ephemeral',
lambda *args: None)
def _create_instance(self, **kw):
values = self.instance_values.copy()
values.update(kw)
instance = objects.Instance(context=self.context, **values)
instance.flavor = objects.Flavor(root_gb=80,
ephemeral_gb=0)
instance.create()
return instance
@mock.patch.object(vmops.VMOps, '_migrate_disk_resizing_up')
@mock.patch.object(vm_utils, 'get_sr_path')
@mock.patch.object(vm_utils, 'lookup')
@mock.patch.object(volume_utils, 'is_booted_from_volume')
def test_migrate_disk_and_power_off(self, mock_boot_from_volume,
mock_lookup, mock_sr_path,
mock_migrate):
instance = self._create_instance()
xenapi_fake.create_vm(instance['name'], 'Running')
flavor = fake_flavor.fake_flavor_obj(self.context, root_gb=80,
ephemeral_gb=0)
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
mock_boot_from_volume.return_value = True
mock_lookup.return_value = 'fake_vm_ref'
mock_sr_path.return_value = 'fake_sr_path'
conn.migrate_disk_and_power_off(self.context, instance,
'127.0.0.1', flavor, None)
mock_lookup.assert_called_once_with(conn._session, instance['name'],
False)
mock_sr_path.assert_called_once_with(conn._session)
mock_migrate.assert_called_once_with(self.context, instance,
'127.0.0.1', 'fake_vm_ref',
'fake_sr_path')
def test_migrate_disk_and_power_off_passes_exceptions(self):
instance = self._create_instance()
xenapi_fake.create_vm(instance['name'], 'Running')
flavor = fake_flavor.fake_flavor_obj(self.context, root_gb=80,
ephemeral_gb=0)
def fake_raise(*args, **kwargs):
raise exception.MigrationError(reason='test failure')
self.stub_out(
'nova.virt.xenapi.vmops.VMOps._migrate_disk_resizing_up',
fake_raise)
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
self.assertRaises(exception.MigrationError,
conn.migrate_disk_and_power_off,
self.context, instance,
'127.0.0.1', flavor, None)
def test_migrate_disk_and_power_off_throws_on_zero_gb_resize_down(self):
instance = self._create_instance()
flavor = fake_flavor.fake_flavor_obj(self.context, root_gb=0,
ephemeral_gb=0)
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
self.assertRaises(exception.ResizeError,
conn.migrate_disk_and_power_off,
self.context, instance,
'fake_dest', flavor, None)
@mock.patch.object(vmops.VMOps, '_migrate_disk_resizing_up')
@mock.patch.object(vm_utils, 'get_sr_path')
@mock.patch.object(vm_utils, 'lookup')
@mock.patch.object(volume_utils, 'is_booted_from_volume')
def test_migrate_disk_and_power_off_with_zero_gb_old_and_new_works(
self, mock_boot_from_volume, mock_lookup, mock_sr_path,
mock_migrate):
flavor = fake_flavor.fake_flavor_obj(self.context, root_gb=0,
ephemeral_gb=0)
instance = self._create_instance(root_gb=0, ephemeral_gb=0)
instance.flavor.root_gb = 0
instance.flavor.ephemeral_gb = 0
xenapi_fake.create_vm(instance['name'], 'Running')
mock_boot_from_volume.return_value = True
mock_lookup.return_value = 'fake_vm_ref'
mock_sr_path.return_value = 'fake_sr_path'
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
conn.migrate_disk_and_power_off(self.context, instance,
'127.0.0.1', flavor, None)
mock_lookup.assert_called_once_with(conn._session, instance['name'],
False)
mock_sr_path.assert_called_once_with(conn._session)
mock_migrate.assert_called_once_with(self.context, instance,
'127.0.0.1', 'fake_vm_ref',
'fake_sr_path')
def _test_revert_migrate(self, power_on):
instance = create_instance_with_system_metadata(self.context,
self.instance_values)
self.called = False
self.fake_vm_start_called = False
self.fake_finish_revert_migration_called = False
context = 'fake_context'
def fake_vm_start(*args, **kwargs):
self.fake_vm_start_called = True
def fake_vdi_resize(*args, **kwargs):
self.called = True
def fake_finish_revert_migration(*args, **kwargs):
self.fake_finish_revert_migration_called = True
self.stub_out(
'nova.tests.unit.virt.xenapi.stubs.FakeSessionForVMTests'
'.VDI_resize_online', fake_vdi_resize)
self.stub_out('nova.virt.xenapi.vmops.VMOps._start', fake_vm_start)
self.stub_out('nova.virt.xenapi.vmops.VMOps.finish_revert_migration',
fake_finish_revert_migration)
stubs.stubout_session(self, stubs.FakeSessionForVMTests,
product_version=(4, 0, 0),
product_brand='XenServer')
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
network_info = fake_network.fake_get_instance_nw_info(self)
image_meta = objects.ImageMeta.from_dict(
{'id': instance['image_ref'], 'disk_format': 'vhd'})
base = xenapi_fake.create_vdi('hurr', 'fake')
base_uuid = xenapi_fake.get_record('VDI', base)['uuid']
cow = xenapi_fake.create_vdi('durr', 'fake')
cow_uuid = xenapi_fake.get_record('VDI', cow)['uuid']
conn.finish_migration(self.context, self.migration, instance,
dict(base_copy=base_uuid, cow=cow_uuid),
network_info, image_meta, resize_instance=True,
allocations={}, block_device_info=None,
power_on=power_on)
self.assertTrue(self.called)
self.assertEqual(self.fake_vm_start_called, power_on)
conn.finish_revert_migration(context, instance, network_info,
self.migration)
self.assertTrue(self.fake_finish_revert_migration_called)
def test_revert_migrate_power_on(self):
self._test_revert_migrate(True)
def test_revert_migrate_power_off(self):
self._test_revert_migrate(False)
def _test_finish_migrate(self, power_on):
instance = create_instance_with_system_metadata(self.context,
self.instance_values)
self.called = False
self.fake_vm_start_called = False
def fake_vm_start(*args, **kwargs):
self.fake_vm_start_called = True
def fake_vdi_resize(*args, **kwargs):
self.called = True
self.stub_out('nova.virt.xenapi.vmops.VMOps._start', fake_vm_start)
self.stub_out('nova.tests.unit.virt.xenapi.stubs'
'.FakeSessionForVMTests.VDI_resize_online',
fake_vdi_resize)
stubs.stubout_session(self, stubs.FakeSessionForVMTests,
product_version=(4, 0, 0),
product_brand='XenServer')
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
network_info = fake_network.fake_get_instance_nw_info(self)
image_meta = objects.ImageMeta.from_dict(
{'id': instance['image_ref'], 'disk_format': 'vhd'})
conn.finish_migration(self.context, self.migration, instance,
dict(base_copy='hurr', cow='durr'),
network_info, image_meta, resize_instance=True,
allocations={}, block_device_info=None,
power_on=power_on)
self.assertTrue(self.called)
self.assertEqual(self.fake_vm_start_called, power_on)
def test_finish_migrate_power_on(self):
self._test_finish_migrate(True)
def test_finish_migrate_power_off(self):
self._test_finish_migrate(False)
def test_finish_migrate_no_local_storage(self):
values = copy.copy(self.instance_values)
values["root_gb"] = 0
values["ephemeral_gb"] = 0
instance = create_instance_with_system_metadata(self.context, values)
instance.flavor.root_gb = 0
instance.flavor.ephemeral_gb = 0
def fake_vdi_resize(*args, **kwargs):
raise Exception("This shouldn't be called")
self.stub_out('nova.tests.unit.virt.xenapi.stubs'
'.FakeSessionForVMTests.VDI_resize_online',
fake_vdi_resize)
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
network_info = fake_network.fake_get_instance_nw_info(self)
image_meta = objects.ImageMeta.from_dict(
{'id': instance['image_ref'], 'disk_format': 'vhd'})
conn.finish_migration(self.context, self.migration, instance,
dict(base_copy='hurr', cow='durr'),
network_info, image_meta, resize_instance=True,
allocations={})
def test_finish_migrate_no_resize_vdi(self):
instance = create_instance_with_system_metadata(self.context,
self.instance_values)
def fake_vdi_resize(*args, **kwargs):
raise Exception("This shouldn't be called")
self.stub_out('nova.tests.unit.virt.xenapi.stubs'
'.FakeSessionForVMTests.VDI_resize_online',
fake_vdi_resize)
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
network_info = fake_network.fake_get_instance_nw_info(self)
# Resize instance would be determined by the compute call
image_meta = objects.ImageMeta.from_dict(
{'id': instance['image_ref'], 'disk_format': 'vhd'})
conn.finish_migration(self.context, self.migration, instance,
dict(base_copy='hurr', cow='durr'),
network_info, image_meta, resize_instance=False,
allocations={})
@stub_vm_utils_with_vdi_attached
def test_migrate_too_many_partitions_no_resize_down(self):
instance = self._create_instance()
xenapi_fake.create_vm(instance['name'], 'Running')
flavor = objects.Flavor.get_by_name(self.context, 'm1.small')
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
def fake_get_partitions(partition):
return [(1, 2, 3, 4, "", ""), (1, 2, 3, 4, "", "")]
self.stub_out('nova.virt.xenapi.vm_utils._get_partitions',
fake_get_partitions)
self.assertRaises(exception.InstanceFaultRollback,
conn.migrate_disk_and_power_off,
self.context, instance,
'127.0.0.1', flavor, None)
@stub_vm_utils_with_vdi_attached
def test_migrate_bad_fs_type_no_resize_down(self):
instance = self._create_instance()
xenapi_fake.create_vm(instance['name'], 'Running')
flavor = objects.Flavor.get_by_name(self.context, 'm1.small')
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
def fake_get_partitions(partition):
return [(1, 2, 3, "ext2", "", "boot")]
self.stub_out('nova.virt.xenapi.vm_utils._get_partitions',
fake_get_partitions)
self.assertRaises(exception.InstanceFaultRollback,
conn.migrate_disk_and_power_off,
self.context, instance,
'127.0.0.1', flavor, None)
@mock.patch.object(vmops.VMOps, '_resize_ensure_vm_is_shutdown')
@mock.patch.object(vmops.VMOps, '_apply_orig_vm_name_label')
@mock.patch.object(vm_utils, 'resize_disk')
@mock.patch.object(vm_utils, 'migrate_vhd')
@mock.patch.object(vm_utils, 'destroy_vdi')
@mock.patch.object(vm_utils, 'get_vdi_for_vm_safely')
@mock.patch.object(vmops.VMOps, '_restore_orig_vm_and_cleanup_orphan')
def test_migrate_rollback_when_resize_down_fs_fails(self, mock_restore,
mock_get_vdi,
mock_destroy,
mock_migrate,
mock_disk,
mock_label,
mock_resize):
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
vmops = conn._vmops
instance = objects.Instance(context=self.context,
auto_disk_config=True,
uuid=uuids.instance)
instance.obj_reset_changes()
vm_ref = "vm_ref"
dest = "dest"
flavor = "type"
sr_path = "sr_path"
vmops._resize_ensure_vm_is_shutdown(instance, vm_ref)
vmops._apply_orig_vm_name_label(instance, vm_ref)
old_vdi_ref = "old_ref"
mock_get_vdi.return_value = (old_vdi_ref, None)
new_vdi_ref = "new_ref"
new_vdi_uuid = "new_uuid"
mock_disk.return_value = (new_vdi_ref, new_vdi_uuid)
mock_migrate.side_effect = exception.ResizeError(reason="asdf")
vm_utils.destroy_vdi(vmops._session, new_vdi_ref)
vmops._restore_orig_vm_and_cleanup_orphan(instance)
with mock.patch.object(instance, 'save') as mock_save:
self.assertRaises(exception.InstanceFaultRollback,
vmops._migrate_disk_resizing_down, self.context,
instance, dest, flavor, vm_ref, sr_path)
self.assertEqual(3, mock_save.call_count)
self.assertEqual(60.0, instance.progress)
mock_resize.assert_any_call(instance, vm_ref)
mock_label.assert_any_call(instance, vm_ref)
mock_get_vdi.assert_called_once_with(vmops._session, vm_ref)
mock_disk.assert_called_once_with(vmops._session, instance,
old_vdi_ref, flavor)
mock_migrate.assert_called_once_with(vmops._session, instance,
new_vdi_uuid, dest, sr_path, 0)
mock_destroy.assert_any_call(vmops._session, new_vdi_ref)
mock_restore.assert_any_call(instance)
@mock.patch.object(vm_utils, 'is_vm_shutdown')
@mock.patch.object(vm_utils, 'clean_shutdown_vm')
@mock.patch.object(vm_utils, 'hard_shutdown_vm')
def test_resize_ensure_vm_is_shutdown_cleanly(self, mock_hard, mock_clean,
mock_shutdown):
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
vmops = conn._vmops
fake_instance = {'uuid': 'uuid'}
mock_shutdown.return_value = False
mock_clean.return_value = False
vmops._resize_ensure_vm_is_shutdown(fake_instance, "ref")
mock_shutdown.assert_called_once_with(vmops._session, "ref")
mock_clean.assert_called_once_with(vmops._session, fake_instance,
"ref")
@mock.patch.object(vm_utils, 'is_vm_shutdown')
@mock.patch.object(vm_utils, 'clean_shutdown_vm')
@mock.patch.object(vm_utils, 'hard_shutdown_vm')
def test_resize_ensure_vm_is_shutdown_forced(self, mock_hard, mock_clean,
mock_shutdown):
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
vmops = conn._vmops
fake_instance = {'uuid': 'uuid'}
mock_shutdown.return_value = False
mock_clean.return_value = False
mock_hard.return_value = True
vmops._resize_ensure_vm_is_shutdown(fake_instance, "ref")
mock_shutdown.assert_called_once_with(vmops._session, "ref")
mock_clean.assert_called_once_with(vmops._session, fake_instance,
"ref")
mock_hard.assert_called_once_with(vmops._session, fake_instance,
"ref")
@mock.patch.object(vm_utils, 'is_vm_shutdown')
@mock.patch.object(vm_utils, 'clean_shutdown_vm')
@mock.patch.object(vm_utils, 'hard_shutdown_vm')
def test_resize_ensure_vm_is_shutdown_fails(self, mock_hard, mock_clean,
mock_shutdown):
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
vmops = conn._vmops
fake_instance = {'uuid': 'uuid'}
mock_shutdown.return_value = False
mock_clean.return_value = False
mock_hard.return_value = False
self.assertRaises(exception.ResizeError,
vmops._resize_ensure_vm_is_shutdown, fake_instance, "ref")
mock_shutdown.assert_called_once_with(vmops._session, "ref")
mock_clean.assert_called_once_with(vmops._session, fake_instance,
"ref")
mock_hard.assert_called_once_with(vmops._session, fake_instance,
"ref")
@mock.patch.object(vm_utils, 'is_vm_shutdown')
@mock.patch.object(vm_utils, 'clean_shutdown_vm')
@mock.patch.object(vm_utils, 'hard_shutdown_vm')
def test_resize_ensure_vm_is_shutdown_already_shutdown(self, mock_hard,
mock_clean,
mock_shutdown):
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
vmops = conn._vmops
fake_instance = {'uuid': 'uuid'}
mock_shutdown.return_value = True
vmops._resize_ensure_vm_is_shutdown(fake_instance, "ref")
mock_shutdown.assert_called_once_with(vmops._session, "ref")
class XenAPIImageTypeTestCase(test.NoDBTestCase):
"""Test ImageType class."""
def test_to_string(self):
# Can convert from type id to type string.
self.assertEqual(
vm_utils.ImageType.to_string(vm_utils.ImageType.KERNEL),
vm_utils.ImageType.KERNEL_STR)
def _assert_role(self, expected_role, image_type_id):
self.assertEqual(
expected_role,
vm_utils.ImageType.get_role(image_type_id))
def test_get_image_role_kernel(self):
self._assert_role('kernel', vm_utils.ImageType.KERNEL)
def test_get_image_role_ramdisk(self):
self._assert_role('ramdisk', vm_utils.ImageType.RAMDISK)
def test_get_image_role_disk(self):
self._assert_role('root', vm_utils.ImageType.DISK)
def test_get_image_role_disk_raw(self):
self._assert_role('root', vm_utils.ImageType.DISK_RAW)
def test_get_image_role_disk_vhd(self):
self._assert_role('root', vm_utils.ImageType.DISK_VHD)
class XenAPIDetermineDiskImageTestCase(test.NoDBTestCase):
"""Unit tests for code that detects the ImageType."""
def assert_disk_type(self, image_meta, expected_disk_type):
actual = vm_utils.determine_disk_image_type(image_meta)
self.assertEqual(expected_disk_type, actual)
def test_machine(self):
image_meta = objects.ImageMeta.from_dict(
{'disk_format': 'ami'})
self.assert_disk_type(image_meta, vm_utils.ImageType.DISK)
def test_raw(self):
image_meta = objects.ImageMeta.from_dict(
{'disk_format': 'raw'})
self.assert_disk_type(image_meta, vm_utils.ImageType.DISK_RAW)
def test_vhd(self):
image_meta = objects.ImageMeta.from_dict(
{'disk_format': 'vhd'})
self.assert_disk_type(image_meta, vm_utils.ImageType.DISK_VHD)
# FIXME(sirp): convert this to use XenAPITestBaseNoDB
class XenAPIHostTestCase(stubs.XenAPITestBase):
"""Tests HostState, which holds metrics from XenServer that get
reported back to the Schedulers.
"""
def setUp(self):
super(XenAPIHostTestCase, self).setUp()
self.flags(connection_url='http://localhost',
connection_password='test_pass',
group='xenserver')
stubs.stubout_session(self, stubs.FakeSessionForVMTests)
self.context = context.get_admin_context()
self.conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
self.instance = fake_instance.fake_db_instance(name='foo')
self.useFixture(fixtures.SingleCellSimple())
def test_host_state(self):
stats = self.conn.host_state.get_host_stats(False)
# Values from fake.create_local_srs (ext SR)
self.assertEqual(stats['disk_total'], 40000)
self.assertEqual(stats['disk_used'], 0)
# Values from fake._plugin_xenhost_host_data
self.assertEqual(stats['host_memory_total'], 10)
self.assertEqual(stats['host_memory_overhead'], 20)
self.assertEqual(stats['host_memory_free'], 30)
self.assertEqual(stats['host_memory_free_computed'], 40)
self.assertEqual(stats['hypervisor_hostname'], 'fake-xenhost')
self.assertEqual(stats['host_cpu_info']['cpu_count'], 4)
self.assertThat({
'vendor': 'GenuineIntel',
'model': 'Intel(R) Xeon(R) CPU X3430 @ 2.40GHz',
'topology': {
'sockets': 1,
'cores': 4,
'threads': 1,
},
'features': [
'fpu', 'de', 'tsc', 'msr', 'pae', 'mce',
'cx8', 'apic', 'sep', 'mtrr', 'mca',
'cmov', 'pat', 'clflush', 'acpi', 'mmx',
'fxsr', 'sse', 'sse2', 'ss', 'ht',
'nx', 'constant_tsc', 'nonstop_tsc',
'aperfmperf', 'pni', 'vmx', 'est', 'ssse3',
'sse4_1', 'sse4_2', 'popcnt', 'hypervisor',
'ida', 'tpr_shadow', 'vnmi', 'flexpriority',
'ept', 'vpid',
]},
matchers.DictMatches(stats['cpu_model']))
# No VMs running
self.assertEqual(stats['vcpus_used'], 0)
def test_host_state_vcpus_used(self):
stats = self.conn.host_state.get_host_stats(True)
self.assertEqual(stats['vcpus_used'], 0)
xenapi_fake.create_vm(self.instance['name'], 'Running')
stats = self.conn.host_state.get_host_stats(True)
self.assertEqual(stats['vcpus_used'], 4)
def test_pci_passthrough_devices(self):
stats = self.conn.host_state.get_host_stats(False)
self.assertEqual(len(stats['pci_passthrough_devices']), 2)
def test_host_state_missing_sr(self):
# Must trigger construction of 'host_state' property
# before introducing the stub which raises the error
hs = self.conn.host_state
with mock.patch.object(
vm_utils, 'safe_find_sr',
side_effect=exception.StorageRepositoryNotFound('not there')):
self.assertRaises(exception.StorageRepositoryNotFound,
hs.get_host_stats,
refresh=True)
def _test_host_action(self, method, action, expected=None):
result = method('host', action)
if not expected:
expected = action
self.assertEqual(result, expected)
def _test_host_action_no_param(self, method, action, expected=None):
result = method(action)
if not expected:
expected = action
self.assertEqual(result, expected)
def test_host_reboot(self):
self._test_host_action_no_param(self.conn.host_power_action, 'reboot')
def test_host_shutdown(self):
self._test_host_action_no_param(self.conn.host_power_action,
'shutdown')
def test_host_startup(self):
self.assertRaises(NotImplementedError,
self.conn.host_power_action, 'startup')
def test_host_maintenance_on(self):
self._test_host_action(self.conn.host_maintenance_mode,
True, 'on_maintenance')
def test_host_maintenance_off(self):
self._test_host_action(self.conn.host_maintenance_mode,
False, 'off_maintenance')
def test_set_enable_host_enable(self):
_create_service_entries(self.context, values={'nova': ['fake-mini']})
self._test_host_action_no_param(self.conn.set_host_enabled,
True, 'enabled')
service = db.service_get_by_host_and_binary(self.context, 'fake-mini',
'nova-compute')
self.assertFalse(service.disabled)
def test_set_enable_host_disable(self):
_create_service_entries(self.context, values={'nova': ['fake-mini']})
self._test_host_action_no_param(self.conn.set_host_enabled,
False, 'disabled')
service = db.service_get_by_host_and_binary(self.context, 'fake-mini',
'nova-compute')
self.assertTrue(service.disabled)
def test_get_host_uptime(self):
result = self.conn.get_host_uptime()
self.assertEqual(result, 'fake uptime')
def test_supported_instances_is_included_in_host_state(self):
stats = self.conn.host_state.get_host_stats(False)
self.assertIn('supported_instances', stats)
@mock.patch.object(host, 'to_supported_instances',
return_value='SOMERETURNVALUE')
def test_supported_instances_is_calculated_by_to_supported_instances(
self, mock_to_supported_instances):
stats = self.conn.host_state.get_host_stats(False)
self.assertEqual("SOMERETURNVALUE", stats['supported_instances'])
mock_to_supported_instances.assert_called_once_with(
['xen-3.0-x86_64', 'xen-3.0-x86_32p', 'hvm-3.0-x86_32',
'hvm-3.0-x86_32p', 'hvm-3.0-x86_64'])
@mock.patch.object(host.HostState, 'get_disk_used')
@mock.patch.object(host.HostState, '_get_passthrough_devices')
@mock.patch.object(host.HostState, '_get_vgpu_stats')
@mock.patch.object(jsonutils, 'loads')
@mock.patch.object(vm_utils, 'list_vms')
@mock.patch.object(vm_utils, 'scan_default_sr')
@mock.patch.object(host_management, 'get_host_data')
def test_update_stats_caches_hostname(self, mock_host_data, mock_scan_sr,
mock_list_vms, mock_loads,
mock_vgpus_stats,
mock_devices, mock_dis_used):
data = {'disk_total': 0,
'disk_used': 0,
'disk_available': 0,
'supported_instances': 0,
'host_capabilities': [],
'host_hostname': 'foo',
'vcpus_used': 0,
}
sr_rec = {
'physical_size': 0,
'physical_utilisation': 0,
'virtual_allocation': 0,
}
mock_loads.return_value = data
mock_host_data.return_value = data
mock_scan_sr.return_value = 'ref'
mock_list_vms.return_value = []
mock_devices.return_value = "dev1"
mock_dis_used.return_value = (0, 0)
self.conn._session = mock.Mock()
with mock.patch.object(self.conn._session.SR, 'get_record') \
as mock_record:
mock_record.return_value = sr_rec
stats = self.conn.host_state.get_host_stats(refresh=True)
self.assertEqual('foo', stats['hypervisor_hostname'])
self.assertEqual(2, mock_loads.call_count)
self.assertEqual(2, mock_host_data.call_count)
self.assertEqual(2, mock_scan_sr.call_count)
self.assertEqual(2, mock_devices.call_count)
self.assertEqual(2, mock_vgpus_stats.call_count)
mock_loads.assert_called_with(data)
mock_host_data.assert_called_with(self.conn._session)
mock_scan_sr.assert_called_with(self.conn._session)
mock_devices.assert_called_with()
mock_vgpus_stats.assert_called_with()
@mock.patch.object(host.HostState, 'update_status')
class XenAPIHostStateTestCase(stubs.XenAPITestBaseNoDB):
def _test_get_disk_used(self, vdis, attached_vbds):
session = mock.MagicMock()
host_state = host.HostState(session)
sr_ref = 'sr_ref'
session.SR.get_VDIs.return_value = vdis.keys()
session.VDI.get_virtual_size.side_effect = \
lambda vdi_ref: vdis[vdi_ref]['virtual_size']
session.VDI.get_physical_utilisation.side_effect = \
lambda vdi_ref: vdis[vdi_ref]['physical_utilisation']
session.VDI.get_VBDs.side_effect = \
lambda vdi_ref: vdis[vdi_ref]['VBDs']
session.VBD.get_currently_attached.side_effect = \
lambda vbd_ref: vbd_ref in attached_vbds
disk_used = host_state.get_disk_used(sr_ref)
session.SR.get_VDIs.assert_called_once_with(sr_ref)
return disk_used
def test_get_disk_used_virtual(self, mock_update_status):
# Both VDIs are attached
attached_vbds = ['vbd_1', 'vbd_2']
vdis = {
'vdi_1': {'physical_utilisation': 1,
'virtual_size': 100,
'VBDs': ['vbd_1']},
'vdi_2': {'physical_utilisation': 1,
'virtual_size': 100,
'VBDs': ['vbd_2']}
}
disk_used = self._test_get_disk_used(vdis, attached_vbds)
self.assertEqual((200, 2), disk_used)
def test_get_disk_used_physical(self, mock_update_status):
# Neither VDIs are attached
attached_vbds = []
vdis = {
'vdi_1': {'physical_utilisation': 1,
'virtual_size': 100,
'VBDs': ['vbd_1']},
'vdi_2': {'physical_utilisation': 1,
'virtual_size': 100,
'VBDs': ['vbd_2']}
}
disk_used = self._test_get_disk_used(vdis, attached_vbds)
self.assertEqual((2, 2), disk_used)
def test_get_disk_used_both(self, mock_update_status):
# One VDI is attached
attached_vbds = ['vbd_1']
vdis = {
'vdi_1': {'physical_utilisation': 1,
'virtual_size': 100,
'VBDs': ['vbd_1']},
'vdi_2': {'physical_utilisation': 1,
'virtual_size': 100,
'VBDs': ['vbd_2']}
}
disk_used = self._test_get_disk_used(vdis, attached_vbds)
self.assertEqual((101, 2), disk_used)
class ToSupportedInstancesTestCase(test.NoDBTestCase):
def test_default_return_value(self):
self.assertEqual([],
host.to_supported_instances(None))
def test_return_value(self):
self.assertEqual(
[(obj_fields.Architecture.X86_64, obj_fields.HVType.XEN, 'xen')],
host.to_supported_instances([u'xen-3.0-x86_64']))
def test_invalid_values_do_not_break(self):
self.assertEqual(
[(obj_fields.Architecture.X86_64, obj_fields.HVType.XEN, 'xen')],
host.to_supported_instances([u'xen-3.0-x86_64', 'spam']))
def test_multiple_values(self):
self.assertEqual(
[
(obj_fields.Architecture.X86_64, obj_fields.HVType.XEN, 'xen'),
(obj_fields.Architecture.I686, obj_fields.HVType.XEN, 'hvm')
],
host.to_supported_instances([u'xen-3.0-x86_64', 'hvm-3.0-x86_32'])
)
# FIXME(sirp): convert this to use XenAPITestBaseNoDB
class XenAPIAutoDiskConfigTestCase(stubs.XenAPITestBase):
def setUp(self):
super(XenAPIAutoDiskConfigTestCase, self).setUp()
self.flags(connection_url='http://localhost',
connection_password='test_pass',
group='xenserver')
stubs.stubout_session(self, stubs.FakeSessionForVMTests)
self.conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
self.user_id = 'fake'
self.project_id = 'fake'
self.instance_values = {
'project_id': self.project_id,
'user_id': self.user_id,
'image_ref': IMAGE_MACHINE,
'kernel_id': IMAGE_KERNEL,
'ramdisk_id': IMAGE_RAMDISK,
'root_gb': 80,
'ephemeral_gb': 0,
'instance_type_id': '3', # m1.large
'os_type': 'linux',
'architecture': 'x86-64'}
self.context = context.RequestContext(self.user_id, self.project_id)
self.stub_out('nova.virt.xenapi.vm_utils.create_vbd',
lambda session, vm_ref, vdi_ref, userdevice,
bootable, osvol: None)
@mock.patch.object(vm_utils, '_resize_part_and_fs')
def assertIsPartitionCalled(self, called, mock_resize_part_and_fs):
context.RequestContext(self.user_id, self.project_id)
session = get_session()
disk_image_type = vm_utils.ImageType.DISK_VHD
instance = create_instance_with_system_metadata(self.context,
self.instance_values)
vm_ref = xenapi_fake.create_vm(instance['name'], 'Halted')
vdi_ref = xenapi_fake.create_vdi(instance['name'], 'fake')
vdi_uuid = session.call_xenapi('VDI.get_record', vdi_ref)['uuid']
vdis = {'root': {'uuid': vdi_uuid, 'ref': vdi_ref}}
image_meta = objects.ImageMeta.from_dict(
{'id': uuids.image_id,
'disk_format': 'vhd',
'properties': {'vm_mode': 'xen'}})
self.conn._vmops._attach_disks(self.context, instance, image_meta,
vm_ref, instance['name'], vdis, disk_image_type,
"fake_nw_inf")
if called:
mock_resize_part_and_fs.assert_called()
else:
mock_resize_part_and_fs.assert_not_called()
def test_instance_not_auto_disk_config(self):
"""Should not partition unless instance is marked as
auto_disk_config.
"""
self.instance_values['auto_disk_config'] = False
self.assertIsPartitionCalled(False)
@stub_vm_utils_with_vdi_attached
@mock.patch.object(vm_utils, '_get_partitions',
return_value=[(1, 0, 100, 'ext4', "", ""),
(2, 100, 200, 'ext4' "", "")])
def test_instance_auto_disk_config_fails_safe_two_partitions(
self, mock_get_partitions):
# Should not partition unless fail safes pass.
self.instance_values['auto_disk_config'] = True
self.assertIsPartitionCalled(False)
mock_get_partitions.assert_called_once_with('fakedev')
@stub_vm_utils_with_vdi_attached
@mock.patch.object(vm_utils, '_get_partitions',
return_value=[(2, 100, 200, 'ext4', "", "")])
def test_instance_auto_disk_config_fails_safe_badly_numbered(
self, mock_get_partitions):
# Should not partition unless fail safes pass.
self.instance_values['auto_disk_config'] = True
self.assertIsPartitionCalled(False)
mock_get_partitions.assert_called_once_with('fakedev')
@stub_vm_utils_with_vdi_attached
@mock.patch.object(vm_utils, '_get_partitions',
return_value=[(1, 100, 200, 'asdf', "", "")])
def test_instance_auto_disk_config_fails_safe_bad_fstype(
self, mock_get_partitions):
# Should not partition unless fail safes pass.
self.instance_values['auto_disk_config'] = True
self.assertIsPartitionCalled(False)
mock_get_partitions.assert_called_once_with('fakedev')
@stub_vm_utils_with_vdi_attached
@mock.patch.object(vm_utils, '_get_partitions',
return_value=[(1, 0, 100, 'ext4', "", "boot")])
def test_instance_auto_disk_config_passes_fail_safes(
self, mock_get_partitions):
"""Should partition if instance is marked as auto_disk_config=True and
virt-layer specific fail-safe checks pass.
"""
self.instance_values['auto_disk_config'] = True
self.assertIsPartitionCalled(True)
mock_get_partitions.assert_called_once_with('fakedev')
# FIXME(sirp): convert this to use XenAPITestBaseNoDB
class XenAPIGenerateLocal(stubs.XenAPITestBase):
"""Test generating of local disks, like swap and ephemeral."""
def setUp(self):
super(XenAPIGenerateLocal, self).setUp()
self.flags(connection_url='http://localhost',
connection_password='test_pass',
group='xenserver')
stubs.stubout_session(self, stubs.FakeSessionForVMTests)
db_fakes.stub_out_db_instance_api(self)
self.conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
self.user_id = 'fake'
self.project_id = 'fake'
self.instance_values = {
'project_id': self.project_id,
'user_id': self.user_id,
'image_ref': IMAGE_MACHINE,
'kernel_id': IMAGE_KERNEL,
'ramdisk_id': IMAGE_RAMDISK,
'root_gb': 80,
'ephemeral_gb': 0,
'instance_type_id': '3', # m1.large
'os_type': 'linux',
'architecture': 'x86-64'}
self.context = context.RequestContext(self.user_id, self.project_id)
def fake_create_vbd(session, vm_ref, vdi_ref, userdevice,
vbd_type='disk', read_only=False, bootable=True,
osvol=False, empty=False, unpluggable=True):
return session.call_xenapi('VBD.create', {'VM': vm_ref,
'VDI': vdi_ref})
self.stub_out('nova.virt.xenapi.vm_utils.create_vbd', fake_create_vbd)
def assertCalled(self, instance,
disk_image_type=vm_utils.ImageType.DISK_VHD):
context.RequestContext(self.user_id, self.project_id)
session = get_session()
vm_ref = xenapi_fake.create_vm(instance['name'], 'Halted')
vdi_ref = xenapi_fake.create_vdi(instance['name'], 'fake')
vdi_uuid = session.call_xenapi('VDI.get_record', vdi_ref)['uuid']
vdi_key = 'root'
if disk_image_type == vm_utils.ImageType.DISK_ISO:
vdi_key = 'iso'
vdis = {vdi_key: {'uuid': vdi_uuid, 'ref': vdi_ref}}
image_meta = objects.ImageMeta.from_dict(
{'id': uuids.image_id,
'disk_format': 'vhd',
'properties': {'vm_mode': 'xen'}})
self.conn._vmops._attach_disks(self.context, instance, image_meta,
vm_ref, instance['name'], vdis, disk_image_type,
"fake_nw_inf")
@mock.patch.object(vm_utils, 'generate_swap')
def test_generate_swap(self, mock_generate_swap):
# Test swap disk generation.
instance_values = dict(self.instance_values, instance_type_id=5)
instance = create_instance_with_system_metadata(self.context,
instance_values)
self.assertCalled(instance)
self.assertTrue(mock_generate_swap.called)
@mock.patch.object(vm_utils, 'generate_ephemeral')
def test_generate_ephemeral(self, mock_generate_ephemeral):
# Test ephemeral disk generation.
instance_values = dict(self.instance_values, instance_type_id=4)
instance = create_instance_with_system_metadata(self.context,
instance_values)
self.assertCalled(instance)
self.assertTrue(mock_generate_ephemeral.called)
@mock.patch.object(
uuidutils, 'generate_uuid',
new=mock.Mock(return_value='98e2a239-5a96-4a72-840f-2c3836482461'))
@mock.patch.object(vm_utils, 'generate_iso_blank_root_disk')
@mock.patch.object(vm_utils, 'generate_ephemeral')
def test_generate_iso_blank_root_disk(
self, mock_generate_ephemeral, mock_generate_iso_blank_root_disk):
instance_values = dict(self.instance_values, instance_type_id=4)
instance_values.pop('kernel_id')
instance_values.pop('ramdisk_id')
instance = create_instance_with_system_metadata(self.context,
instance_values)
self.assertCalled(instance, vm_utils.ImageType.DISK_ISO)
mock_generate_ephemeral.assert_called_once_with(
test.MatchType(session.XenAPISession),
instance, '98e2a239-5a96-4a72-840f-2c3836482461', '4',
'instance-00000001', 160)
self.assertTrue(mock_generate_iso_blank_root_disk.called)
class XenAPIBWCountersTestCase(stubs.XenAPITestBaseNoDB):
FAKE_VMS = {'test1:ref': dict(name_label='test1',
other_config=dict(nova_uuid='hash'),
domid='12',
_vifmap={'0': "a:b:c:d...",
'1': "e:f:12:q..."}),
'test2:ref': dict(name_label='test2',
other_config=dict(nova_uuid='hash'),
domid='42',
_vifmap={'0': "a:3:c:d...",
'1': "e:f:42:q..."}),
}
def setUp(self):
super(XenAPIBWCountersTestCase, self).setUp()
self.stub_out('nova.virt.xenapi.vm_utils.list_vms',
XenAPIBWCountersTestCase._fake_list_vms)
self.flags(connection_url='http://localhost',
connection_password='test_pass',
group='xenserver')
stubs.stubout_session(self, stubs.FakeSessionForVMTests)
self.conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
def _fake_get_vif_device_map(self, vm_rec):
return vm_rec['_vifmap']
self.stub_out('nova.virt.xenapi.vmops.VMOps._get_vif_device_map',
_fake_get_vif_device_map)
@classmethod
def _fake_list_vms(cls, session):
return cls.FAKE_VMS.items()
@staticmethod
def _fake_fetch_bandwidth_mt(session):
return {}
@mock.patch.object(vm_utils, 'fetch_bandwidth',
return_value={
'42': {'0': {'bw_in': 21024, 'bw_out': 22048},
'1': {'bw_in': 231337, 'bw_out': 221212121}},
'12':
{'0': {'bw_in': 1024, 'bw_out': 2048},
'1': {'bw_in': 31337, 'bw_out': 21212121}}})
def test_get_all_bw_counters(self, mock_fetch_bandwidth):
instances = [dict(name='test1', uuid='1-2-3'),
dict(name='test2', uuid='4-5-6')]
result = self.conn.get_all_bw_counters(instances)
self.assertEqual(4, len(result))
self.assertIn(dict(uuid='1-2-3',
mac_address="a:b:c:d...",
bw_in=1024,
bw_out=2048), result)
self.assertIn(dict(uuid='1-2-3',
mac_address="e:f:12:q...",
bw_in=31337,
bw_out=21212121), result)
self.assertIn(dict(uuid='4-5-6',
mac_address="a:3:c:d...",
bw_in=21024,
bw_out=22048), result)
self.assertIn(dict(uuid='4-5-6',
mac_address="e:f:42:q...",
bw_in=231337,
bw_out=221212121), result)
mock_fetch_bandwidth.assert_called_once_with(
test.MatchType(session.XenAPISession))
@mock.patch.object(vm_utils, 'fetch_bandwidth',
new=mock.Mock(return_value={}))
def test_get_all_bw_counters_in_failure_case(self):
"""Test that get_all_bw_conters returns an empty list when
no data returned from Xenserver. c.f. bug #910045.
"""
instances = [dict(name='instance-0001', uuid='1-2-3-4-5')]
result = self.conn.get_all_bw_counters(instances)
self.assertEqual(result, [])
class XenAPISRSelectionTestCase(stubs.XenAPITestBaseNoDB):
"""Unit tests for testing we find the right SR."""
def test_safe_find_sr_raise_exception(self):
# Ensure StorageRepositoryNotFound is raise when wrong filter.
self.flags(sr_matching_filter='yadayadayada', group='xenserver')
stubs.stubout_session(self, stubs.FakeSessionForVMTests)
session = get_session()
self.assertRaises(exception.StorageRepositoryNotFound,
vm_utils.safe_find_sr, session)
def test_safe_find_sr_local_storage(self):
# Ensure the default local-storage is found.
self.flags(sr_matching_filter='other-config:i18n-key=local-storage',
group='xenserver')
stubs.stubout_session(self, stubs.FakeSessionForVMTests)
session = get_session()
# This test is only guaranteed if there is one host in the pool
self.assertEqual(len(xenapi_fake.get_all('host')), 1)
host_ref = xenapi_fake.get_all('host')[0]
pbd_refs = xenapi_fake.get_all('PBD')
for pbd_ref in pbd_refs:
pbd_rec = xenapi_fake.get_record('PBD', pbd_ref)
if pbd_rec['host'] != host_ref:
continue
sr_rec = xenapi_fake.get_record('SR', pbd_rec['SR'])
if sr_rec['other_config']['i18n-key'] == 'local-storage':
local_sr = pbd_rec['SR']
expected = vm_utils.safe_find_sr(session)
self.assertEqual(local_sr, expected)
def test_safe_find_sr_by_other_criteria(self):
# Ensure the SR is found when using a different filter.
self.flags(sr_matching_filter='other-config:my_fake_sr=true',
group='xenserver')
stubs.stubout_session(self, stubs.FakeSessionForVMTests)
session = get_session()
host_ref = xenapi_fake.get_all('host')[0]
local_sr = xenapi_fake.create_sr(name_label='Fake Storage',
type='lvm',
other_config={'my_fake_sr': 'true'},
host_ref=host_ref)
expected = vm_utils.safe_find_sr(session)
self.assertEqual(local_sr, expected)
def test_safe_find_sr_default(self):
# Ensure the default SR is found regardless of other-config.
self.flags(sr_matching_filter='default-sr:true',
group='xenserver')
stubs.stubout_session(self, stubs.FakeSessionForVMTests)
session = get_session()
pool_ref = session.call_xenapi('pool.get_all')[0]
expected = vm_utils.safe_find_sr(session)
self.assertEqual(session.call_xenapi('pool.get_default_SR', pool_ref),
expected)
def _create_service_entries(context, values={'avail_zone1': ['fake_host1',
'fake_host2'],
'avail_zone2': ['fake_host3'], }):
for hosts in values.values():
for service_host in hosts:
objects.Service(context,
**{'host': service_host,
'binary': 'nova-compute',
'topic': 'compute',
'report_count': 0}).create()
return values
# FIXME(sirp): convert this to use XenAPITestBaseNoDB
class XenAPIAggregateTestCase(stubs.XenAPITestBase):
"""Unit tests for aggregate operations."""
def setUp(self):
super(XenAPIAggregateTestCase, self).setUp()
self.flags(connection_url='http://localhost',
connection_username='test_user',
connection_password='test_pass',
group='xenserver')
self.flags(instance_name_template='%d',
host='host',
compute_driver='xenapi.XenAPIDriver',
default_availability_zone='avail_zone1')
host_ref = xenapi_fake.get_all('host')[0]
stubs.stubout_session(self, stubs.FakeSessionForVMTests)
self.context = context.get_admin_context()
self.conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
self.compute = manager.ComputeManager()
self.api = compute_api.AggregateAPI()
values = {'name': 'test_aggr',
'metadata': {'availability_zone': 'test_zone',
pool_states.POOL_FLAG: 'XenAPI'}}
self.aggr = objects.Aggregate(context=self.context, id=1,
**values)
self.fake_metadata = {pool_states.POOL_FLAG: 'XenAPI',
'master_compute': 'host',
'availability_zone': 'fake_zone',
pool_states.KEY: pool_states.ACTIVE,
'host': xenapi_fake.get_record('host',
host_ref)['uuid']}
self.useFixture(fixtures.SingleCellSimple())
@mock.patch('nova.virt.xenapi.pool.ResourcePool.add_to_aggregate')
def test_pool_add_to_aggregate_called_by_driver(
self, mock_add_to_aggregate):
def pool_add_to_aggregate(context, aggregate, host, slave_info=None):
self.assertEqual("CONTEXT", context)
self.assertEqual("AGGREGATE", aggregate)
self.assertEqual("HOST", host)
self.assertEqual("SLAVEINFO", slave_info)
mock_add_to_aggregate.side_effect = pool_add_to_aggregate
self.conn.add_to_aggregate("CONTEXT", "AGGREGATE", "HOST",
slave_info="SLAVEINFO")
self.assertTrue(mock_add_to_aggregate.called)
@mock.patch('nova.virt.xenapi.pool.ResourcePool.remove_from_aggregate')
def test_pool_remove_from_aggregate_called_by_driver(
self, mock_remove_from_aggregate):
def pool_remove_from_aggregate(context, aggregate, host,
slave_info=None):
self.assertEqual("CONTEXT", context)
self.assertEqual("AGGREGATE", aggregate)
self.assertEqual("HOST", host)
self.assertEqual("SLAVEINFO", slave_info)
mock_remove_from_aggregate.side_effect = pool_remove_from_aggregate
self.conn.remove_from_aggregate("CONTEXT", "AGGREGATE", "HOST",
slave_info="SLAVEINFO")
self.assertTrue(mock_remove_from_aggregate.called)
@mock.patch('nova.virt.xenapi.pool.ResourcePool._init_pool')
def test_add_to_aggregate_for_first_host_sets_metadata(
self, mock_init_pool):
aggregate = self._aggregate_setup()
self.conn._pool.add_to_aggregate(self.context, aggregate, "host")
result = objects.Aggregate.get_by_id(self.context, aggregate.id)
self.assertTrue(mock_init_pool.called)
self.assertThat(self.fake_metadata,
matchers.DictMatches(result.metadata))
@mock.patch('nova.virt.xenapi.pool.ResourcePool._join_slave')
def test_join_slave(self, mock_join_slave):
# Ensure join_slave gets called when the request gets to master.
aggregate = self._aggregate_setup(hosts=['host', 'host2'],
metadata=self.fake_metadata)
self.conn._pool.add_to_aggregate(self.context, aggregate, "host2",
dict(compute_uuid='fake_uuid',
url='fake_url',
user='fake_user',
passwd='fake_pass',
xenhost_uuid='fake_uuid'))
self.assertTrue(mock_join_slave.called)
@mock.patch.object(xenapi_fake.SessionBase, 'pool_set_name_label')
def test_add_to_aggregate_first_host(self, mock_pool_set_name_label):
self.conn._session.call_xenapi("pool.create", {"name": "asdf"})
metadata = {'availability_zone': 'fake_zone',
pool_states.POOL_FLAG: "XenAPI",
pool_states.KEY: pool_states.CREATED}
aggregate = objects.Aggregate(context=self.context)
aggregate.name = 'fake_aggregate'
aggregate.metadata = dict(metadata)
aggregate.create()
aggregate.add_host('host')
self.assertEqual(["host"], aggregate.hosts)
self.assertEqual(metadata, aggregate.metadata)
self.conn._pool.add_to_aggregate(self.context, aggregate, "host")
self.assertTrue(mock_pool_set_name_label.called)
@mock.patch('nova.virt.xenapi.pool.ResourcePool.remove_from_aggregate')
def test_remove_from_aggregate_called(self, mock_remove_from_aggregate):
self.conn.remove_from_aggregate(None, None, None)
self.assertTrue(mock_remove_from_aggregate.called)
def test_remove_from_empty_aggregate(self):
result = self._aggregate_setup()
self.assertRaises(exception.InvalidAggregateActionDelete,
self.conn._pool.remove_from_aggregate,
self.context, result, "test_host")
@mock.patch('nova.virt.xenapi.pool.ResourcePool._eject_slave')
def test_remove_slave(self, mock_eject_slave):
# Ensure eject slave gets called.
self.fake_metadata['host2'] = 'fake_host2_uuid'
aggregate = self._aggregate_setup(hosts=['host', 'host2'],
metadata=self.fake_metadata, aggr_state=pool_states.ACTIVE)
self.conn._pool.remove_from_aggregate(self.context, aggregate, "host2")
self.assertTrue(mock_eject_slave.called)
@mock.patch('nova.virt.xenapi.pool.ResourcePool._clear_pool')
def test_remove_master_solo(self, mock_clear_pool):
# Ensure metadata are cleared after removal.
aggregate = self._aggregate_setup(metadata=self.fake_metadata)
self.conn._pool.remove_from_aggregate(self.context, aggregate, "host")
result = objects.Aggregate.get_by_id(self.context, aggregate.id)
self.assertTrue(mock_clear_pool.called)
self.assertThat({'availability_zone': 'fake_zone',
pool_states.POOL_FLAG: 'XenAPI',
pool_states.KEY: pool_states.ACTIVE},
matchers.DictMatches(result.metadata))
def test_remote_master_non_empty_pool(self):
# Ensure AggregateError is raised if removing the master.
aggregate = self._aggregate_setup(hosts=['host', 'host2'],
metadata=self.fake_metadata)
self.assertRaises(exception.InvalidAggregateActionDelete,
self.conn._pool.remove_from_aggregate,
self.context, aggregate, "host")
def _aggregate_setup(self, aggr_name='fake_aggregate',
aggr_zone='fake_zone',
aggr_state=pool_states.CREATED,
hosts=['host'], metadata=None):
aggregate = objects.Aggregate(context=self.context)
aggregate.name = aggr_name
aggregate.metadata = {'availability_zone': aggr_zone,
pool_states.POOL_FLAG: 'XenAPI',
pool_states.KEY: aggr_state,
}
if metadata:
aggregate.metadata.update(metadata)
aggregate.create()
for aggregate_host in hosts:
aggregate.add_host(aggregate_host)
return aggregate
def test_add_host_to_aggregate_invalid_changing_status(self):
"""Ensure InvalidAggregateActionAdd is raised when adding host while
aggregate is not ready.
"""
aggregate = self._aggregate_setup(aggr_state=pool_states.CHANGING)
ex = self.assertRaises(exception.InvalidAggregateActionAdd,
self.conn.add_to_aggregate, self.context,
aggregate, 'host')
self.assertIn('setup in progress', str(ex))
def test_add_host_to_aggregate_invalid_dismissed_status(self):
"""Ensure InvalidAggregateActionAdd is raised when aggregate is
deleted.
"""
aggregate = self._aggregate_setup(aggr_state=pool_states.DISMISSED)
ex = self.assertRaises(exception.InvalidAggregateActionAdd,
self.conn.add_to_aggregate, self.context,
aggregate, 'fake_host')
self.assertIn('aggregate deleted', str(ex))
def test_add_host_to_aggregate_invalid_error_status(self):
"""Ensure InvalidAggregateActionAdd is raised when aggregate is
in error.
"""
aggregate = self._aggregate_setup(aggr_state=pool_states.ERROR)
ex = self.assertRaises(exception.InvalidAggregateActionAdd,
self.conn.add_to_aggregate, self.context,
aggregate, 'fake_host')
self.assertIn('aggregate in error', str(ex))
@mock.patch.object(objects.ComputeNodeList, 'get_all_by_host')
@mock.patch('nova.scheduler.client.report.SchedulerReportClient.'
'aggregate_remove_host')
@mock.patch('nova.scheduler.client.report.SchedulerReportClient.'
'aggregate_add_host')
def test_remove_host_from_aggregate_error(
self, mock_add_host, mock_remove_host, mock_get_all_by_host):
# Ensure we can remove a host from an aggregate even if in error.
values = _create_service_entries(self.context)
fake_zone = list(values.keys())[0]
aggr = self.api.create_aggregate(self.context,
'fake_aggregate', fake_zone)
# let's mock the fact that the aggregate is ready!
metadata = {pool_states.POOL_FLAG: "XenAPI",
pool_states.KEY: pool_states.ACTIVE}
self.api.update_aggregate_metadata(self.context,
aggr.id,
metadata)
for aggregate_host in values[fake_zone]:
mock_get_all_by_host.return_value = objects.ComputeNodeList(
objects=[objects.ComputeNode(
host=aggregate_host,
hypervisor_hostname=aggregate_host)])
aggr = self.api.add_host_to_aggregate(self.context,
aggr.id, aggregate_host)
# let's mock the fact that the aggregate is in error!
expected = self.api.remove_host_from_aggregate(self.context,
aggr.id,
values[fake_zone][0])
self.assertEqual(len(aggr.hosts) - 1, len(expected.hosts))
self.assertEqual(expected.metadata[pool_states.KEY],
pool_states.ACTIVE)
def test_remove_host_from_aggregate_invalid_dismissed_status(self):
"""Ensure InvalidAggregateActionDelete is raised when aggregate is
deleted.
"""
aggregate = self._aggregate_setup(aggr_state=pool_states.DISMISSED)
self.assertRaises(exception.InvalidAggregateActionDelete,
self.conn.remove_from_aggregate, self.context,
aggregate, 'fake_host')
def test_remove_host_from_aggregate_invalid_changing_status(self):
"""Ensure InvalidAggregateActionDelete is raised when aggregate is
changing.
"""
aggregate = self._aggregate_setup(aggr_state=pool_states.CHANGING)
self.assertRaises(exception.InvalidAggregateActionDelete,
self.conn.remove_from_aggregate, self.context,
aggregate, 'fake_host')
@mock.patch('nova.virt.xenapi.driver.XenAPIDriver.add_to_aggregate',
new=mock.Mock(
side_effect=exception.AggregateError(
aggregate_id='', action='', reason='')))
@mock.patch('nova.compute.utils.notify_about_aggregate_action',
new=mock.Mock())
def test_add_aggregate_host_raise_err(self):
# Ensure the undo operation works correctly on add.
metadata = {pool_states.POOL_FLAG: "XenAPI",
pool_states.KEY: pool_states.ACTIVE}
self.aggr.metadata = metadata
self.aggr.hosts = ['fake_host']
self.assertRaises(exception.AggregateError,
self.compute.add_aggregate_host,
self.context, host="fake_host",
aggregate=self.aggr,
slave_info=None)
self.assertEqual(self.aggr.metadata[pool_states.KEY],
pool_states.ERROR)
self.assertEqual(self.aggr.hosts, ['fake_host'])
class MockComputeAPI(object):
def __init__(self):
self._mock_calls = []
def add_aggregate_host(self, ctxt, aggregate,
host_param, host, slave_info):
self._mock_calls.append((
self.add_aggregate_host, ctxt, aggregate,
host_param, host, slave_info))
def remove_aggregate_host(self, ctxt, host, aggregate_id, host_param,
slave_info):
self._mock_calls.append((
self.remove_aggregate_host, ctxt, host, aggregate_id,
host_param, slave_info))
class StubDependencies(object):
"""Stub dependencies for ResourcePool."""
def __init__(self):
self.compute_rpcapi = MockComputeAPI()
def _is_hv_pool(self, *_ignore):
return True
def _get_metadata(self, *_ignore):
return {
pool_states.KEY: {},
'master_compute': 'master'
}
def _create_slave_info(self, *ignore):
return "SLAVE_INFO"
class ResourcePoolWithStubs(StubDependencies, pool.ResourcePool):
"""A ResourcePool, use stub dependencies."""
class HypervisorPoolTestCase(test.NoDBTestCase):
fake_aggregate = {
'id': 98,
'hosts': [],
'metadata': {
'master_compute': 'master',
pool_states.POOL_FLAG: '',
pool_states.KEY: ''
}
}
fake_aggregate = objects.Aggregate(**fake_aggregate)
def test_slave_asks_master_to_add_slave_to_pool(self):
slave = ResourcePoolWithStubs()
slave.add_to_aggregate("CONTEXT", self.fake_aggregate, "slave")
self.assertIn(
(slave.compute_rpcapi.add_aggregate_host,
"CONTEXT", "slave", self.fake_aggregate,
"master", "SLAVE_INFO"),
slave.compute_rpcapi._mock_calls)
def test_slave_asks_master_to_remove_slave_from_pool(self):
slave = ResourcePoolWithStubs()
slave.remove_from_aggregate("CONTEXT", self.fake_aggregate, "slave")
self.assertIn(
(slave.compute_rpcapi.remove_aggregate_host,
"CONTEXT", "slave", 98, "master", "SLAVE_INFO"),
slave.compute_rpcapi._mock_calls)
class SwapXapiHostTestCase(test.NoDBTestCase):
def test_swapping(self):
self.assertEqual(
"http://otherserver:8765/somepath",
pool.swap_xapi_host(
"http://someserver:8765/somepath", 'otherserver'))
def test_no_port(self):
self.assertEqual(
"http://otherserver/somepath",
pool.swap_xapi_host(
"http://someserver/somepath", 'otherserver'))
def test_no_path(self):
self.assertEqual(
"http://otherserver",
pool.swap_xapi_host(
"http://someserver", 'otherserver'))
class XenAPILiveMigrateTestCase(stubs.XenAPITestBaseNoDB):
"""Unit tests for live_migration."""
def setUp(self):
super(XenAPILiveMigrateTestCase, self).setUp()
self.flags(connection_url='http://localhost',
connection_password='test_pass',
group='xenserver')
self.flags(host='host')
db_fakes.stub_out_db_instance_api(self)
self.context = context.get_admin_context()
@mock.patch.object(vmops.VMOps, 'live_migrate')
def test_live_migration_calls_vmops(self, mock_live_migrate):
stubs.stubout_session(self, stubs.FakeSessionForVMTests)
self.conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
self.conn.live_migration(None, None, None, None, None)
self.assertTrue(mock_live_migrate.called)
def test_pre_live_migration(self):
stubs.stubout_session(self, stubs.FakeSessionForVMTests)
self.conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
with mock.patch.object(self.conn._vmops, "pre_live_migration") as pre:
pre.return_value = True
result = self.conn.pre_live_migration(
"ctx", "inst", "bdi", "nw", "di", "data")
self.assertTrue(result)
pre.assert_called_with("ctx", "inst", "bdi", "nw", "di", "data")
@mock.patch.object(vm_utils, 'create_kernel_and_ramdisk',
return_value=('fake-kernel-file', 'fake-ramdisk-file'))
@mock.patch.object(vm_utils, 'strip_base_mirror_from_vdis')
@mock.patch.object(vmops.VMOps, '_get_vm_opaque_ref')
@mock.patch.object(vmops.VMOps, '_post_start_actions')
def test_post_live_migration_at_destination(
self, mock_post_action, mock_get_vm_opaque_ref,
mock_strip_base_mirror_from_vdis, mock_create_kernel_and_ramdisk):
# ensure method is present
stubs.stubout_session(self, stubs.FakeSessionForVMTests)
self.conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
fake_instance = {"name": "fake-name"}
fake_network_info = "network_info"
self.conn.post_live_migration_at_destination(
self.context, fake_instance, fake_network_info, None)
self.assertTrue(mock_get_vm_opaque_ref.called)
self.assertTrue(mock_strip_base_mirror_from_vdis.called)
mock_post_action.assert_called_once_with(fake_instance)
mock_create_kernel_and_ramdisk.assert_called_once_with(
self.context, self.conn._session, fake_instance,
fake_instance['name'])
@mock.patch.object(vm_utils, 'host_in_this_pool')
def test_check_can_live_migrate_destination_with_block_migration(
self,
mock_same_pool):
stubs.stubout_session(self, stubs.FakeSessionForVMTests)
self.conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
fake_instance = objects.Instance(host="fake_host")
self.stub_out('nova.virt.xenapi.vm_utils.safe_find_sr',
lambda _x: 'asdf')
with mock.patch.object(self.conn._vmops._session, "host_ref") as \
fake_host_ref, mock.patch.object(
self.conn._vmops, '_get_network_ref') as \
fake_get_network_ref, mock.patch.object(
self.conn._vmops, '_get_host_opaque_ref'):
fake_host_ref.return_value = 'fake_host_ref'
fake_get_network_ref.return_value = 'fake_network_ref'
expected = {'block_migration': True,
'is_volume_backed': False,
'migrate_send_data': {'value': 'fake_migrate_data'},
'destination_sr_ref': 'asdf',
'vif_uuid_map': {'': 'fake_network_ref'}}
result = self.conn.check_can_live_migrate_destination(
self.context,
fake_instance,
{}, {},
True, False)
result.is_volume_backed = False
self.assertEqual(expected,
result.obj_to_primitive()['nova_object.data'])
def test_check_live_migrate_destination_verifies_ip(self):
stubs.stubout_session(self, stubs.FakeSessionForVMTests)
self.conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
fake_instance = objects.Instance(host="fake_host")
for pif_ref in xenapi_fake.get_all('PIF'):
pif_rec = xenapi_fake.get_record('PIF', pif_ref)
pif_rec['IP'] = ''
pif_rec['IPv6'] = ''
self.stub_out('nova.virt.xenapi.vm_utils.safe_find_sr',
lambda _x: 'asdf')
self.assertRaises(exception.MigrationError,
self.conn.check_can_live_migrate_destination,
self.context, fake_instance,
{}, {},
True, False)
def test_check_can_live_migrate_destination_block_migration_fails(self):
fake_instance = objects.Instance(host="fake_host")
stubs.stubout_session(self, stubs.FakeSessionForFailedMigrateTests)
self.conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
self.assertRaises(exception.MigrationError,
self.conn.check_can_live_migrate_destination,
self.context, fake_instance,
{}, {},
True, False)
def _add_default_live_migrate_stubs(self, conn):
@classmethod
def fake_generate_vdi_map(cls, destination_sr_ref, _vm_ref):
pass
@classmethod
def fake_get_iscsi_srs(cls, destination_sr_ref, _vm_ref):
return []
@classmethod
def fake_get_vm_opaque_ref(cls, instance):
return "fake_vm"
def fake_lookup_kernel_ramdisk(session, vm):
return ("fake_PV_kernel", "fake_PV_ramdisk")
@classmethod
def fake_generate_vif_map(cls, vif_uuid_map):
return {'vif_ref1': 'dest_net_ref'}
self.stub_out('nova.virt.xenapi.vmops.VMOps._generate_vdi_map',
fake_generate_vdi_map)
self.stub_out('nova.virt.xenapi.vmops.VMOps._get_iscsi_srs',
fake_get_iscsi_srs)
self.stub_out('nova.virt.xenapi.vmops.VMOps._get_vm_opaque_ref',
fake_get_vm_opaque_ref)
self.stub_out('nova.virt.xenapi.vm_utils.lookup_kernel_ramdisk',
fake_lookup_kernel_ramdisk)
self.stub_out('nova.virt.xenapi.vmops.VMOps._generate_vif_network_map',
fake_generate_vif_map)
def test_check_can_live_migrate_source_with_block_migrate(self):
stubs.stubout_session(self, stubs.FakeSessionForVMTests)
self.conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
self._add_default_live_migrate_stubs(self.conn)
dest_check_data = objects.XenapiLiveMigrateData(
block_migration=True, is_volume_backed=False,
destination_sr_ref=None, migrate_send_data={'key': 'value'})
result = self.conn.check_can_live_migrate_source(self.context,
{'host': 'host'},
dest_check_data)
self.assertEqual(dest_check_data, result)
def test_check_can_live_migrate_source_with_block_migrate_iscsi(self):
stubs.stubout_session(self, stubs.FakeSessionForVMTests)
self.conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
self._add_default_live_migrate_stubs(self.conn)
dest_check_data = objects.XenapiLiveMigrateData(
block_migration=True,
is_volume_backed=True,
destination_sr_ref=None,
migrate_send_data={'key': 'value'})
result = self.conn.check_can_live_migrate_source(self.context,
{'host': 'host'},
dest_check_data)
self.assertEqual(dest_check_data, result)
@mock.patch.object(session.XenAPISession, 'is_xsm_sr_check_relaxed',
return_value=False)
def test_check_can_live_migrate_source_with_block_iscsi_fails(
self, mock_is_xsm_sr_check_relaxed):
stubs.stubout_session(self, stubs.FakeSessionForVMTests)
self.conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
self._add_default_live_migrate_stubs(self.conn)
with mock.patch.object(vmops.VMOps, '_get_iscsi_srs',
return_value=['sr_ref']):
self.assertRaises(exception.MigrationError,
self.conn.check_can_live_migrate_source,
self.context, {'host': 'host'},
{})
mock_is_xsm_sr_check_relaxed.assert_called_once_with()
def test_check_can_live_migrate_source_with_block_migrate_fails(self):
stubs.stubout_session(self, stubs.FakeSessionForFailedMigrateTests)
self.conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
self._add_default_live_migrate_stubs(self.conn)
dest_check_data = objects.XenapiLiveMigrateData(
block_migration=True, is_volume_backed=True,
migrate_send_data={'key': 'value'}, destination_sr_ref=None)
self.assertRaises(exception.MigrationError,
self.conn.check_can_live_migrate_source,
self.context,
{'host': 'host'},
dest_check_data)
@mock.patch.object(vm_utils, 'host_in_this_pool')
def test_check_can_live_migrate_works(self,
mock_host_in_this_pool):
# The dest host is in the same pool with the src host, do no block
# live migrate
stubs.stubout_session(self, stubs.FakeSessionForVMTests)
self.conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
mock_host_in_this_pool.side_effect = [True, True]
with mock.patch.object(self.conn._vmops, "_get_host_opaque_ref") as \
fake_get_host_opaque_ref, \
mock.patch.object(self.conn._vmops, '_get_network_ref') as \
fake_get_network_ref, \
mock.patch.object(self.conn._vmops._session, 'get_rec') as \
fake_get_rec:
fake_host_ref = 'fake_host_ref'
fake_get_host_opaque_ref.return_value = fake_host_ref
fake_network_ref = 'fake_network_ref'
fake_get_network_ref.return_value = fake_network_ref
fake_get_rec.return_value = {'shared': True}
fake_host_name = 'fake_host'
instance = objects.Instance(host=fake_host_name)
# Set block_migration to None to enable pool check, then do pooled
# live migrate
dest_check_data = self.conn.check_can_live_migrate_destination(
self.context, instance, 'fake_src_compute_info',
'fake_dst_compute_info', None, None)
self.assertFalse(dest_check_data.block_migration)
self.assertEqual(dest_check_data.vif_uuid_map,
{'': fake_network_ref})
fake_get_host_opaque_ref.assert_called_once_with(fake_host_name)
mock_host_in_this_pool.assert_called_once_with(
self.conn._vmops._session, fake_host_ref)
fake_get_network_ref.assert_called_once()
@mock.patch.object(vm_utils, 'host_in_this_pool')
def test_check_can_live_migrate_fails(self, mock_host_in_this_pool):
# Caller asks for no block live migrate while the dest host is not in
# the same pool with the src host, raise exception
stubs.stubout_session(self, stubs.FakeSessionForVMTests)
self.conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
mock_host_in_this_pool.return_value = False
with mock.patch.object(self.conn._vmops, "_get_host_opaque_ref") as \
fake_get_host_opaque_ref, \
mock.patch.object(self.conn._vmops, '_get_network_ref') as \
fake_get_network_ref:
fake_host_ref = 'fake_host_ref'
fake_get_host_opaque_ref.return_value = fake_host_ref
fake_network_ref = 'fake_network_ref'
fake_get_network_ref.return_value = fake_network_ref
fake_host_name = 'fake_host'
instance = objects.Instance(host=fake_host_name)
# Set block_migration to False to do pooled live migrate
self.assertRaises(exception.MigrationPreCheckError,
self.conn.check_can_live_migrate_destination,
self.context, instance, 'fake_src_compute_info',
'fake_dst_compute_info', False, None)
fake_get_host_opaque_ref.assert_called_once_with(fake_host_name)
mock_host_in_this_pool.assert_called_once_with(
self.conn._vmops._session, fake_host_ref)
fake_get_network_ref.assert_not_called()
@mock.patch.object(vmops.VMOps, '_get_host_opaque_ref',
return_value='fake_host')
@mock.patch.object(vmops.VMOps, '_get_vm_opaque_ref',
return_value='fake_vm')
@mock.patch.object(vm_utils, 'lookup_kernel_ramdisk',
return_value=('kernel', 'ramdisk'))
def test_live_migration(self, mock_lookup_kernel_ramdisk,
mock_get_vm_opaque_ref, mock_get_host_opaque_ref):
stubs.stubout_session(self, stubs.FakeSessionForVMTests)
self.conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
def post_method(context, instance, destination_hostname,
block_migration, migrate_data):
post_method.called = True
migrate_data = objects.XenapiLiveMigrateData(
destination_sr_ref="foo",
migrate_send_data={"bar": "baz"},
block_migration=False)
fake_instance = mock.Mock()
self.conn.live_migration(self.context, fake_instance, 'fake-dest',
post_method, None, None, migrate_data)
self.assertTrue(post_method.called, "post_method was not called")
mock_lookup_kernel_ramdisk.assert_called_once_with(
self.conn._session, 'fake_vm')
mock_get_vm_opaque_ref.assert_called_once_with(fake_instance)
mock_get_host_opaque_ref.assert_called_once_with('fake-dest')
@mock.patch.object(vmops.VMOps, '_get_vm_opaque_ref',
return_value='fake_vm')
def test_live_migration_on_failure(self, mock_get_vm_opaque_ref):
stubs.stubout_session(self, stubs.FakeSessionForVMTests)
self.conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
def recover_method(context, instance, destination_hostname,
migrate_data=None):
self.assertIsNotNone(migrate_data, 'migrate_data should be passed')
recover_method.called = True
migrate_data = objects.XenapiLiveMigrateData(
destination_sr_ref="foo",
migrate_send_data={"bar": "baz"},
block_migration=False)
fake_instance = mock.Mock()
with mock.patch.object(session.XenAPISession, 'call_xenapi',
side_effect=NotImplementedError()):
self.assertRaises(NotImplementedError, self.conn.live_migration,
self.context, fake_instance, 'fake-dest', None,
recover_method, None, migrate_data)
self.assertTrue(recover_method.called,
"recover_method was not called")
mock_get_vm_opaque_ref.assert_called_once_with(fake_instance)
def test_live_migration_calls_post_migration(self):
stubs.stubout_session(self, stubs.FakeSessionForVMTests)
self.conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
self._add_default_live_migrate_stubs(self.conn)
def post_method(context, instance, destination_hostname,
block_migration, migrate_data):
post_method.called = True
# pass block_migration = True and migrate data
migrate_data = objects.XenapiLiveMigrateData(
destination_sr_ref="foo",
migrate_send_data={"bar": "baz"},
block_migration=True)
self.conn.live_migration(self.conn, None, None, post_method, None,
True, migrate_data)
self.assertTrue(post_method.called, "post_method.called")
@mock.patch.object(volume_utils, 'forget_sr')
def test_live_migration_block_cleans_srs(self, mock_forget_sr):
stubs.stubout_session(self, stubs.FakeSessionForVMTests)
self.conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
self._add_default_live_migrate_stubs(self.conn)
def post_method(context, instance, destination_hostname,
block_migration, migrate_data):
post_method.called = True
migrate_data = objects.XenapiLiveMigrateData(
destination_sr_ref="foo",
migrate_send_data={"bar": "baz"},
block_migration=True)
with mock.patch.object(vmops.VMOps, '_get_iscsi_srs',
return_value=['sr_ref']):
self.conn.live_migration(self.conn, None, None, post_method, None,
True, migrate_data)
self.assertTrue(post_method.called, "post_method was not called")
self.assertTrue(mock_forget_sr.called, "forget_sr was not called")
def test_live_migration_with_block_migration_fails_migrate_send(self):
stubs.stubout_session(self, stubs.FakeSessionForFailedMigrateTests)
self.conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
self._add_default_live_migrate_stubs(self.conn)
def recover_method(context, instance, destination_hostname,
migrate_data=None):
self.assertIsNotNone(migrate_data, 'migrate_data should be passed')
recover_method.called = True
# pass block_migration = True and migrate data
migrate_data = objects.XenapiLiveMigrateData(
destination_sr_ref='foo',
migrate_send_data={'bar': 'baz'},
block_migration=True)
self.assertRaises(exception.MigrationError,
self.conn.live_migration, self.conn,
None, None, None, recover_method, True, migrate_data)
self.assertTrue(recover_method.called, "recover_method.called")
def test_live_migrate_block_migration_xapi_call_parameters(self):
fake_vdi_map = object()
class Session(xenapi_fake.SessionBase):
def VM_migrate_send(self_, session, vmref, migrate_data, islive,
vdi_map, vif_map, options):
self.assertEqual({'SOMEDATA': 'SOMEVAL'}, migrate_data)
self.assertEqual(fake_vdi_map, vdi_map)
stubs.stubout_session(self, Session)
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
self._add_default_live_migrate_stubs(conn)
def fake_generate_vdi_map(self, destination_sr_ref, _vm_ref):
return fake_vdi_map
self.stub_out('nova.virt.xenapi.vmops.VMOps._generate_vdi_map',
fake_generate_vdi_map)
def dummy_callback(*args, **kwargs):
pass
migrate_data = objects.XenapiLiveMigrateData(
migrate_send_data={'SOMEDATA': 'SOMEVAL'},
destination_sr_ref='TARGET_SR_OPAQUE_REF',
block_migration=True)
conn.live_migration(
self.context, instance=dict(name='ignore'), dest=None,
post_method=dummy_callback, recover_method=dummy_callback,
block_migration="SOMEDATA",
migrate_data=migrate_data)
@mock.patch.object(vmops.VMOps, '_get_host_opaque_ref',
return_value='fake_ref')
def test_live_migrate_pool_migration_xapi_call_parameters(
self, mock_get_host_opaque_ref):
class Session(xenapi_fake.SessionBase):
def VM_pool_migrate(self_, session, vm_ref, host_ref, options):
self.assertEqual("fake_ref", host_ref)
self.assertEqual({"live": "true"}, options)
raise IOError()
stubs.stubout_session(self, Session)
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
self._add_default_live_migrate_stubs(conn)
def dummy_callback(*args, **kwargs):
pass
migrate_data = objects.XenapiLiveMigrateData(
migrate_send_data={'foo': 'bar'},
destination_sr_ref='foo',
block_migration=False)
self.assertRaises(IOError, conn.live_migration,
self.context, instance=dict(name='ignore'), dest='fake-dest',
post_method=dummy_callback, recover_method=dummy_callback,
block_migration=False, migrate_data=migrate_data)
mock_get_host_opaque_ref.assert_called_once_with('fake-dest')
@mock.patch.object(vm_utils, 'get_instance_vdis_for_sr')
@mock.patch.object(vm_utils, 'safe_find_sr')
def test_generate_vdi_map(self, mock_safe_find_sr,
mock_get_instance_vdis_for_sr):
stubs.stubout_session(self, xenapi_fake.SessionBase)
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
vm_ref = "fake_vm_ref"
mock_safe_find_sr.return_value = 'source_sr_ref'
mock_get_instance_vdis_for_sr.return_value = ['vdi0', 'vdi1']
result = conn._vmops._generate_vdi_map("dest_sr_ref", vm_ref)
self.assertEqual({"vdi0": "dest_sr_ref",
"vdi1": "dest_sr_ref"}, result)
mock_safe_find_sr.assert_called_once_with(conn._session)
mock_get_instance_vdis_for_sr.assert_called_once_with(
conn._session, vm_ref, 'source_sr_ref')
@mock.patch.object(vmops.VMOps, "_delete_networks_and_bridges")
def test_rollback_live_migration_at_destination(self, mock_delete_network):
stubs.stubout_session(self, xenapi_fake.SessionBase)
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
network_info = ["fake_vif1"]
with mock.patch.object(conn, "destroy") as mock_destroy:
conn.rollback_live_migration_at_destination("context",
"instance", network_info, {'block_device_mapping': []})
self.assertFalse(mock_destroy.called)
self.assertTrue(mock_delete_network.called)
class XenAPIInjectMetadataTestCase(stubs.XenAPITestBaseNoDB):
def setUp(self):
super(XenAPIInjectMetadataTestCase, self).setUp()
self.flags(connection_url='http://localhost',
connection_password='test_pass',
group='xenserver')
stubs.stubout_session(self, stubs.FakeSessionForVMTests)
self.conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
self.xenstore = dict(persist={}, ephem={})
self.called_fake_get_vm_opaque_ref = False
def fake_get_vm_opaque_ref(inst, instance):
self.called_fake_get_vm_opaque_ref = True
if instance["uuid"] == "not_found":
raise exception.NotFound
self.assertEqual(instance, {'uuid': 'fake'})
return 'vm_ref'
def fake_add_to_param_xenstore(inst, vm_ref, key, val):
self.assertEqual(vm_ref, 'vm_ref')
self.xenstore['persist'][key] = val
def fake_remove_from_param_xenstore(inst, vm_ref, key):
self.assertEqual(vm_ref, 'vm_ref')
if key in self.xenstore['persist']:
del self.xenstore['persist'][key]
def fake_write_to_xenstore(inst, instance, path, value, vm_ref=None):
self.assertEqual(instance, {'uuid': 'fake'})
self.assertEqual(vm_ref, 'vm_ref')
self.xenstore['ephem'][path] = jsonutils.dumps(value)
def fake_delete_from_xenstore(inst, instance, path, vm_ref=None):
self.assertEqual(instance, {'uuid': 'fake'})
self.assertEqual(vm_ref, 'vm_ref')
if path in self.xenstore['ephem']:
del self.xenstore['ephem'][path]
self.stub_out('nova.virt.xenapi.vmops.VMOps._get_vm_opaque_ref',
fake_get_vm_opaque_ref)
self.stub_out('nova.virt.xenapi.vmops.VMOps._add_to_param_xenstore',
fake_add_to_param_xenstore)
self.stub_out('nova.virt.xenapi.vmops.VMOps.'
'_remove_from_param_xenstore',
fake_remove_from_param_xenstore)
self.stub_out('nova.virt.xenapi.vmops.VMOps._write_to_xenstore',
fake_write_to_xenstore)
self.stub_out('nova.virt.xenapi.vmops.VMOps._delete_from_xenstore',
fake_delete_from_xenstore)
def test_inject_instance_metadata(self):
# Add some system_metadata to ensure it doesn't get added
# to xenstore
instance = dict(metadata=[{'key': 'a', 'value': 1},
{'key': 'b', 'value': 2},
{'key': 'c', 'value': 3},
# Check xenstore key sanitizing
{'key': 'hi.there', 'value': 4},
{'key': 'hi!t.e/e', 'value': 5}],
# Check xenstore key sanitizing
system_metadata=[{'key': 'sys_a', 'value': 1},
{'key': 'sys_b', 'value': 2},
{'key': 'sys_c', 'value': 3}],
uuid='fake')
self.conn._vmops._inject_instance_metadata(instance, 'vm_ref')
self.assertEqual(self.xenstore, {
'persist': {
'vm-data/user-metadata/a': '1',
'vm-data/user-metadata/b': '2',
'vm-data/user-metadata/c': '3',
'vm-data/user-metadata/hi_there': '4',
'vm-data/user-metadata/hi_t_e_e': '5',
},
'ephem': {},
})
def test_change_instance_metadata_add(self):
# Test XenStore key sanitizing here, too.
diff = {'test.key': ['+', 4]}
instance = {'uuid': 'fake'}
self.xenstore = {
'persist': {
'vm-data/user-metadata/a': '1',
'vm-data/user-metadata/b': '2',
'vm-data/user-metadata/c': '3',
},
'ephem': {
'vm-data/user-metadata/a': '1',
'vm-data/user-metadata/b': '2',
'vm-data/user-metadata/c': '3',
},
}
self.conn._vmops.change_instance_metadata(instance, diff)
self.assertEqual(self.xenstore, {
'persist': {
'vm-data/user-metadata/a': '1',
'vm-data/user-metadata/b': '2',
'vm-data/user-metadata/c': '3',
'vm-data/user-metadata/test_key': '4',
},
'ephem': {
'vm-data/user-metadata/a': '1',
'vm-data/user-metadata/b': '2',
'vm-data/user-metadata/c': '3',
'vm-data/user-metadata/test_key': '4',
},
})
def test_change_instance_metadata_update(self):
diff = dict(b=['+', 4])
instance = {'uuid': 'fake'}
self.xenstore = {
'persist': {
'vm-data/user-metadata/a': '1',
'vm-data/user-metadata/b': '2',
'vm-data/user-metadata/c': '3',
},
'ephem': {
'vm-data/user-metadata/a': '1',
'vm-data/user-metadata/b': '2',
'vm-data/user-metadata/c': '3',
},
}
self.conn._vmops.change_instance_metadata(instance, diff)
self.assertEqual(self.xenstore, {
'persist': {
'vm-data/user-metadata/a': '1',
'vm-data/user-metadata/b': '4',
'vm-data/user-metadata/c': '3',
},
'ephem': {
'vm-data/user-metadata/a': '1',
'vm-data/user-metadata/b': '4',
'vm-data/user-metadata/c': '3',
},
})
def test_change_instance_metadata_delete(self):
diff = dict(b=['-'])
instance = {'uuid': 'fake'}
self.xenstore = {
'persist': {
'vm-data/user-metadata/a': '1',
'vm-data/user-metadata/b': '2',
'vm-data/user-metadata/c': '3',
},
'ephem': {
'vm-data/user-metadata/a': '1',
'vm-data/user-metadata/b': '2',
'vm-data/user-metadata/c': '3',
},
}
self.conn._vmops.change_instance_metadata(instance, diff)
self.assertEqual(self.xenstore, {
'persist': {
'vm-data/user-metadata/a': '1',
'vm-data/user-metadata/c': '3',
},
'ephem': {
'vm-data/user-metadata/a': '1',
'vm-data/user-metadata/c': '3',
},
})
def test_change_instance_metadata_not_found(self):
instance = {'uuid': 'not_found'}
self.conn._vmops.change_instance_metadata(instance, "fake_diff")
self.assertTrue(self.called_fake_get_vm_opaque_ref)
class XenAPIFakeTestCase(test.NoDBTestCase):
def test_query_matches(self):
record = {'a': '1', 'b': '2', 'c_d': '3'}
tests = {'field "a"="1"': True,
'field "b"="2"': True,
'field "b"="4"': False,
'not field "b"="4"': True,
'field "a"="1" and field "b"="4"': False,
'field "a"="1" or field "b"="4"': True,
'field "c__d"="3"': True,
'field \'b\'=\'2\'': True,
}
for query in tests.keys():
expected = tests[query]
fail_msg = "for test '%s'" % query
self.assertEqual(xenapi_fake._query_matches(record, query),
expected, fail_msg)
def test_query_bad_format(self):
record = {'a': '1', 'b': '2', 'c': '3'}
tests = ['"a"="1" or "b"="4"',
'a=1',
]
for query in tests:
fail_msg = "for test '%s'" % query
self.assertFalse(xenapi_fake._query_matches(record, query),
fail_msg)
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