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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 mox3 import mox
from os_xenapi.client import host_management
from os_xenapi.client import session as xenapi_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 import importutils
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 import db
from nova import exception
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.tests import uuidsentinel as uuids
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_session.XenAPISession('test_url', '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(firewall_driver='nova.virt.xenapi.firewall.'
'Dom0IptablesFirewallDriver')
self.flags(connection_url='test_url',
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, 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,
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.useFixture(test.SampleNetworks())
self.network = importutils.import_object(CONF.network_manager)
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',
firewall_driver='nova.virt.xenapi.firewall.'
'Dom0IptablesFirewallDriver')
self.flags(connection_url='test_url',
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, stubs.FakeSessionForVMTests)
stubs.stubout_get_this_vm_uuid(self.stubs)
stubs.stub_out_vm_methods(self.stubs)
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()
stubs.stubout_image_service_download(self.stubs)
stubs.stubout_stream_disk(self.stubs)
def fake_inject_instance_metadata(self, instance, vm):
pass
self.stubs.Set(vmops.VMOps, '_inject_instance_metadata',
fake_inject_instance_metadata)
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.stubs.Set(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.stubs.Set(vmops.VMOps, '_unpause_and_wait',
fake_unpause_and_wait)
def tearDown(self):
fake_image.FakeImageService_reset()
super(XenAPIVMTestCase, self).tearDown()
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(vm_utils, 'lookup', return_value=True)
def test_instance_exists(self, mock_lookup):
self.stubs.Set(objects.Instance, 'name', 'foo')
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(vm_utils, 'lookup', return_value=None)
def test_instance_not_exists(self, mock_lookup):
self.stubs.Set(objects.Instance, 'name', 'bar')
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',
}
def test_get_diagnostics(self):
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())
self.stubs.Set(vm_utils, '_get_rrd', 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)
def test_instance_snapshot_fails_with_no_primary_vdi(self):
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
self.stubs.Set(vm_utils, 'create_vbd', create_bad_vbd)
stubs.stubout_instance_snapshot(self.stubs)
# Stubbing out firewall driver as previous stub sets alters
# xml rpc result parsing
stubs.stubout_firewall_driver(self.stubs, self.conn)
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)
def test_instance_snapshot(self):
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"
stubs.stubout_instance_snapshot(self.stubs)
stubs.stubout_is_snapshot(self.stubs)
# Stubbing out firewall driver as previous stub sets alters
# xml rpc result parsing
stubs.stubout_firewall_driver(self.stubs, self.conn)
instance = self._create_instance()
self.fake_upload_called = False
def fake_image_upload(_self, 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)
self.stubs.Set(glance.GlanceStore, 'upload_image',
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_info.max_mem_kb, mem_kib)
self.assertEqual(self.vm_info.mem_kb, mem_kib)
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'},
{'enabled': '1',
'ip': '192.168.1.101',
'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)
def _test_spawn(self, image_ref, kernel_id, ramdisk_id,
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 = []
# Fake out inject_instance_metadata
def fake_inject_instance_metadata(self, instance, vm):
pass
self.stubs.Set(vmops.VMOps, '_inject_instance_metadata',
fake_inject_instance_metadata)
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)
def test_spawn_ipxe_iso_success(self):
self.mox.StubOutWithMock(vm_utils, 'get_sr_path')
vm_utils.get_sr_path(mox.IgnoreArg()).AndReturn('/sr/path')
self.flags(ipxe_network_name='test1',
ipxe_boot_menu_url='http://boot.example.com',
ipxe_mkisofs_cmd='/root/mkisofs',
group='xenserver')
self.mox.StubOutWithMock(self.conn._session, 'call_plugin_serialized')
self.conn._session.call_plugin_serialized(
'ipxe.py', 'inject', '/sr/path', mox.IgnoreArg(),
'http://boot.example.com', '192.168.1.100', '255.255.255.0',
'192.168.1.1', '192.168.1.3', '/root/mkisofs')
self.conn._session.call_plugin_serialized('partition_utils.py',
'make_partition',
'fakedev', '2048', '-')
self.mox.ReplayAll()
self._test_spawn(IMAGE_IPXE_ISO, None, None)
def test_spawn_ipxe_iso_no_network_name(self):
self.flags(ipxe_network_name=None,
ipxe_boot_menu_url='http://boot.example.com',
group='xenserver')
# ipxe inject shouldn't be called
self.mox.StubOutWithMock(self.conn._session, 'call_plugin_serialized')
self.conn._session.call_plugin_serialized('partition_utils.py',
'make_partition',
'fakedev', '2048', '-')
self.mox.ReplayAll()
self._test_spawn(IMAGE_IPXE_ISO, None, None)
def test_spawn_ipxe_iso_no_boot_menu_url(self):
self.flags(ipxe_network_name='test1',
ipxe_boot_menu_url=None,
group='xenserver')
# ipxe inject shouldn't be called
self.mox.StubOutWithMock(self.conn._session, 'call_plugin_serialized')
self.conn._session.call_plugin_serialized('partition_utils.py',
'make_partition',
'fakedev', '2048', '-')
self.mox.ReplayAll()
self._test_spawn(IMAGE_IPXE_ISO, None, None)
def test_spawn_ipxe_iso_unknown_network_name(self):
self.flags(ipxe_network_name='test2',
ipxe_boot_menu_url='http://boot.example.com',
group='xenserver')
# ipxe inject shouldn't be called
self.mox.StubOutWithMock(self.conn._session, 'call_plugin_serialized')
self.conn._session.call_plugin_serialized('partition_utils.py',
'make_partition',
'fakedev', '2048', '-')
self.mox.ReplayAll()
self._test_spawn(IMAGE_IPXE_ISO, None, None)
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, "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()
stubs.stubout_fetch_disk_image(self.stubs, 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()
stubs.stubout_create_vm(self.stubs)
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.
"""
stubs.stubout_attach_disks(self.stubs)
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()
def test_spawn_vhd_glance_windows(self):
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()
def test_spawn_glance(self):
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)}
self.stubs.Set(vm_utils, '_fetch_disk_image',
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.dac_admin, 'readlink')
@mock.patch.object(nova.privsep.dac_admin, 'writefile')
@mock.patch.object(nova.privsep.dac_admin, 'makedirs')
@mock.patch.object(nova.privsep.dac_admin, 'chown')
@mock.patch.object(nova.privsep.dac_admin, 'chmod')
def test_spawn_netinject_file(self, 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)
def test_spawn_injects_auto_disk_config_to_xenstore(self):
instance = self._create_instance(spawn=False, obj=True)
self.mox.StubOutWithMock(self.conn._vmops, '_inject_auto_disk_config')
self.conn._vmops._inject_auto_disk_config(instance, mox.IgnoreArg())
self.mox.ReplayAll()
image_meta = objects.ImageMeta.from_dict(
IMAGE_FIXTURES[IMAGE_MACHINE]["image_meta"])
self.conn.spawn(self.context, instance, image_meta, [], 'herp', '')
def test_spawn_vlanmanager(self):
self.flags(network_manager='nova.network.manager.VlanManager',
vlan_interface='fake0')
def dummy(*args, **kwargs):
pass
self.stubs.Set(vmops.VMOps, '_create_vifs', dummy)
# Reset network table
xenapi_fake.reset_table('network')
# Instance 2 will use vlan network (see db/fakes.py)
ctxt = self.context.elevated()
inst2 = self._create_instance(False, obj=True)
networks = self.network.db.network_get_all(ctxt)
with mock.patch('nova.objects.network.Network._from_db_object'):
for network in networks:
self.network.set_network_host(ctxt, network)
self.network.allocate_for_instance(ctxt,
instance_id=inst2.id,
instance_uuid=inst2.uuid,
host=CONF.host,
vpn=None,
rxtx_factor=3,
project_id=self.project_id,
macs=None)
self._test_spawn(IMAGE_MACHINE,
IMAGE_KERNEL,
IMAGE_RAMDISK,
instance_id=inst2.id,
create_record=False)
# TODO(salvatore-orlando): a complete test here would require
# a check for making sure the bridge for the VM's VIF is
# consistent with bridge specified in nova db
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'], 'ratelimit')
self.assertEqual(vif_rec['qos_algorithm_params']['kbps'],
str(3 * 10 * 1024))
def test_spawn_ssh_key_injection(self):
# 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(self, 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'})
self.stubs.Set(stubs.FakeSessionForVMTests,
'_plugin_agent_inject_file', fake_inject_file)
def fake_encrypt_text(sshkey, new_pass):
self.assertEqual("ssh-rsa fake_keydata", sshkey)
return "fake"
self.stubs.Set(crypto, 'ssh_encrypt_text', 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)
def test_spawn_ssh_key_injection_non_rsa(self):
# 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(self, 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'})
self.stubs.Set(stubs.FakeSessionForVMTests,
'_plugin_agent_inject_file', fake_inject_file)
def fake_encrypt_text(sshkey, new_pass):
raise NotImplementedError("Should not be called")
self.stubs.Set(crypto, 'ssh_encrypt_text', fake_encrypt_text)
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)
def test_spawn_injected_files(self):
# Test spawning with injected_files.
self.flags(use_agent_default=True,
group='xenserver')
actual_injected_files = []
def fake_inject_file(self, 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'})
self.stubs.Set(stubs.FakeSessionForVMTests,
'_plugin_agent_inject_file', 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.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.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")
def test_spawn_with_resetnetwork_alternative_returncode(self):
self.flags(use_agent_default=True,
group='xenserver')
def fake_resetnetwork(self, method, args):
fake_resetnetwork.called = True
# NOTE(johngarbutt): as returned by FreeBSD and Gentoo
return jsonutils.dumps({'returncode': '500',
'message': 'success'})
self.stubs.Set(stubs.FakeSessionForVMTests,
'_plugin_agent_resetnetwork', fake_resetnetwork)
fake_resetnetwork.called = False
self._test_spawn(IMAGE_VHD, None, None,
os_type="linux", architecture="x86-64")
self.assertTrue(fake_resetnetwork.called)
def _test_spawn_fails_silently_with(self, expected_exception_cls,
method="_plugin_agent_version",
failure=None, value=None):
self.flags(use_agent_default=True,
agent_version_timeout=0,
group='xenserver')
def fake_agent_call(self, method, args):
if failure:
raise XenAPI.Failure([failure])
else:
return value
self.stubs.Set(stubs.FakeSessionForVMTests,
method, fake_agent_call)
called = {}
def fake_add_instance_fault(*args, **kwargs):
called["fake_add_instance_fault"] = args[2]
self.stubs.Set(compute_utils, 'add_instance_fault_from_exc',
fake_add_instance_fault)
self._test_spawn(IMAGE_VHD, None, None,
os_type="linux", architecture="x86-64")
actual_exception = called["fake_add_instance_fault"]
self.assertIsInstance(actual_exception, expected_exception_cls)
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, '')
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:
def fake_start(*args, **kwargs):
raise test.TestingException('Start Error')
self.stubs.Set(self.conn._vmops, '_start', fake_start)
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)
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")
def test_poll_rebooting_instances(self):
self.mox.StubOutWithMock(compute_api.API, 'reboot')
compute_api.API.reboot(mox.IgnoreArg(), mox.IgnoreArg(),
mox.IgnoreArg())
self.mox.ReplayAll()
instance = self._create_instance()
instances = [instance]
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
conn.poll_rebooting_instances(60, instances)
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"
self.stubs.Set(self.conn._vmops, 'get_console_output',
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(method, *args):
api_calls[method] = args
if method == 'host.get_all':
return ['foo', 'bar', 'baz']
return real_call_xenapi(method, *args)
self.stubs.Set(self.conn._session, '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.db.aggregate_get_by_host',
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.stubs.Set(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)
def test_uuid_find(self):
self.mox.StubOutWithMock(db, 'instance_get_all_by_host')
fake_inst = fake_instance.fake_db_instance(id=123)
fake_inst2 = fake_instance.fake_db_instance(id=456)
db.instance_get_all_by_host(self.context, fake_inst['host'],
columns_to_join=None
).AndReturn([fake_inst, fake_inst2])
self.mox.ReplayAll()
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'])
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)
def test_destroy_clean_up_kernel_and_ramdisk(self):
def fake_lookup_kernel_ramdisk(session, vm_ref):
return "kernel", "ramdisk"
self.stubs.Set(vm_utils, "lookup_kernel_ramdisk",
fake_lookup_kernel_ramdisk)
def fake_destroy_kernel_ramdisk(session, instance, kernel, ramdisk):
fake_destroy_kernel_ramdisk.called = True
self.assertEqual("kernel", kernel)
self.assertEqual("ramdisk", ramdisk)
fake_destroy_kernel_ramdisk.called = False
self.stubs.Set(vm_utils, "destroy_kernel_ramdisk",
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(fake_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='test_url',
connection_password='test_pass',
group='xenserver')
self.flags(firewall_driver='nova.virt.xenapi.firewall.'
'Dom0IptablesFirewallDriver')
stubs.stubout_session(self.stubs, 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)
stubs.stub_out_migration_methods(self.stubs)
stubs.stubout_get_this_vm_uuid(self.stubs)
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 _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, 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,
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.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, 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,
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)
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)
@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='test_url',
connection_password='test_pass',
group='xenserver')
stubs.stubout_session(self.stubs, 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
def fake_safe_find_sr(session):
raise exception.StorageRepositoryNotFound('not there')
self.stubs.Set(vm_utils, 'safe_find_sr', fake_safe_find_sr)
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)
def test_supported_instances_is_calculated_by_to_supported_instances(self):
def to_supported_instances(somedata):
return "SOMERETURNVALUE"
self.stubs.Set(host, 'to_supported_instances', to_supported_instances)
stats = self.conn.host_state.get_host_stats(False)
self.assertEqual("SOMERETURNVALUE", stats['supported_instances'])
@mock.patch.object(host.HostState, 'get_disk_used')
@mock.patch.object(host.HostState, '_get_passthrough_devices')
@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_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)
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.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='test_url',
connection_password='test_pass',
group='xenserver')
self.flags(firewall_driver='nova.virt.xenapi.firewall.'
'Dom0IptablesFirewallDriver')
stubs.stubout_session(self.stubs, 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)
def fake_create_vbd(session, vm_ref, vdi_ref, userdevice,
vbd_type='disk', read_only=False, bootable=True,
osvol=False):
pass
self.stubs.Set(vm_utils, 'create_vbd', fake_create_vbd)
def assertIsPartitionCalled(self, called):
marker = {"partition_called": False}
def fake_resize_part_and_fs(dev, start, old_sectors, new_sectors,
flags):
marker["partition_called"] = True
self.stubs.Set(vm_utils, "_resize_part_and_fs",
fake_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.mox.ReplayAll()
self.conn._vmops._attach_disks(self.context, instance, image_meta,
vm_ref, instance['name'], vdis, disk_image_type,
"fake_nw_inf")
self.assertEqual(marker["partition_called"], 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
def test_instance_auto_disk_config_fails_safe_two_partitions(self):
# Should not partition unless fail safes pass.
self.instance_values['auto_disk_config'] = True
def fake_get_partitions(dev):
return [(1, 0, 100, 'ext4', "", ""), (2, 100, 200, 'ext4' "", "")]
self.stubs.Set(vm_utils, "_get_partitions",
fake_get_partitions)
self.assertIsPartitionCalled(False)
@stub_vm_utils_with_vdi_attached
def test_instance_auto_disk_config_fails_safe_badly_numbered(self):
# Should not partition unless fail safes pass.
self.instance_values['auto_disk_config'] = True
def fake_get_partitions(dev):
return [(2, 100, 200, 'ext4', "", "")]
self.stubs.Set(vm_utils, "_get_partitions",
fake_get_partitions)
self.assertIsPartitionCalled(False)
@stub_vm_utils_with_vdi_attached
def test_instance_auto_disk_config_fails_safe_bad_fstype(self):
# Should not partition unless fail safes pass.
self.instance_values['auto_disk_config'] = True
def fake_get_partitions(dev):
return [(1, 100, 200, 'asdf', "", "")]
self.stubs.Set(vm_utils, "_get_partitions",
fake_get_partitions)
self.assertIsPartitionCalled(False)
@stub_vm_utils_with_vdi_attached
def test_instance_auto_disk_config_passes_fail_safes(self):
"""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
def fake_get_partitions(dev):
return [(1, 0, 100, 'ext4', "", "boot")]
self.stubs.Set(vm_utils, "_get_partitions",
fake_get_partitions)
self.assertIsPartitionCalled(True)
# 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='test_url',
connection_password='test_pass',
group='xenserver')
self.flags(firewall_driver='nova.virt.xenapi.firewall.'
'Dom0IptablesFirewallDriver')
stubs.stubout_session(self.stubs, 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.stubs.Set(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}}
self.called = False
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")
self.assertTrue(self.called)
def test_generate_swap(self):
# Test swap disk generation.
instance_values = dict(self.instance_values, instance_type_id=5)
instance = create_instance_with_system_metadata(self.context,
instance_values)
def fake_generate_swap(*args, **kwargs):
self.called = True
self.stubs.Set(vm_utils, 'generate_swap', fake_generate_swap)
self.assertCalled(instance)
def test_generate_ephemeral(self):
# Test ephemeral disk generation.
instance_values = dict(self.instance_values, instance_type_id=4)
instance = create_instance_with_system_metadata(self.context,
instance_values)
def fake_generate_ephemeral(*args):
self.called = True
self.stubs.Set(vm_utils, 'generate_ephemeral', fake_generate_ephemeral)
self.assertCalled(instance)
def test_generate_iso_blank_root_disk(self):
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)
def fake_generate_ephemeral(*args):
pass
self.stubs.Set(vm_utils, 'generate_ephemeral', fake_generate_ephemeral)
def fake_generate_iso(*args):
self.called = True
self.stubs.Set(vm_utils, 'generate_iso_blank_root_disk',
fake_generate_iso)
self.assertCalled(instance, vm_utils.ImageType.DISK_ISO)
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.stubs.Set(vm_utils, 'list_vms',
XenAPIBWCountersTestCase._fake_list_vms)
self.flags(connection_url='test_url',
connection_password='test_pass',
group='xenserver')
self.flags(firewall_driver='nova.virt.xenapi.firewall.'
'Dom0IptablesFirewallDriver')
stubs.stubout_session(self.stubs, stubs.FakeSessionForVMTests)
self.conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
def _fake_get_vif_device_map(vm_rec):
return vm_rec['_vifmap']
self.stubs.Set(self.conn._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 {}
@staticmethod
def _fake_fetch_bandwidth(session):
return {'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):
instances = [dict(name='test1', uuid='1-2-3'),
dict(name='test2', uuid='4-5-6')]
self.stubs.Set(vm_utils, 'fetch_bandwidth',
self._fake_fetch_bandwidth)
result = self.conn.get_all_bw_counters(instances)
self.assertEqual(len(result), 4)
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)
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')]
self.stubs.Set(vm_utils, 'fetch_bandwidth',
self._fake_fetch_bandwidth_mt)
result = self.conn.get_all_bw_counters(instances)
self.assertEqual(result, [])
# TODO(salvatore-orlando): this class and
# nova.tests.unit.virt.test_libvirt.IPTablesFirewallDriverTestCase
# share a lot of code. Consider abstracting common code in a base
# class for firewall driver testing.
#
# FIXME(sirp): convert this to use XenAPITestBaseNoDB
class XenAPIDom0IptablesFirewallTestCase(stubs.XenAPITestBase):
REQUIRES_LOCKING = True
_in_rules = [
'# Generated by iptables-save v1.4.10 on Sat Feb 19 00:03:19 2011',
'*nat',
':PREROUTING ACCEPT [1170:189210]',
':INPUT ACCEPT [844:71028]',
':OUTPUT ACCEPT [5149:405186]',
':POSTROUTING ACCEPT [5063:386098]',
'# Completed on Mon Dec 6 11:54:13 2010',
'# Generated by iptables-save v1.4.4 on Mon Dec 6 11:54:13 2010',
'*mangle',
':INPUT ACCEPT [969615:281627771]',
':FORWARD ACCEPT [0:0]',
':OUTPUT ACCEPT [915599:63811649]',
':nova-block-ipv4 - [0:0]',
'[0:0] -A INPUT -i virbr0 -p tcp -m tcp --dport 67 -j ACCEPT ',
'[0:0] -A FORWARD -d 192.168.122.0/24 -o virbr0 -m state --state RELATED'
',ESTABLISHED -j ACCEPT ',
'[0:0] -A FORWARD -s 192.168.122.0/24 -i virbr0 -j ACCEPT ',
'[0:0] -A FORWARD -i virbr0 -o virbr0 -j ACCEPT ',
'[0:0] -A FORWARD -o virbr0 -j REJECT '
'--reject-with icmp-port-unreachable ',
'[0:0] -A FORWARD -i virbr0 -j REJECT '
'--reject-with icmp-port-unreachable ',
'COMMIT',
'# Completed on Mon Dec 6 11:54:13 2010',
'# Generated by iptables-save v1.4.4 on Mon Dec 6 11:54:13 2010',
'*filter',
':INPUT ACCEPT [969615:281627771]',
':FORWARD ACCEPT [0:0]',
':OUTPUT ACCEPT [915599:63811649]',
':nova-block-ipv4 - [0:0]',
'[0:0] -A INPUT -i virbr0 -p tcp -m tcp --dport 67 -j ACCEPT ',
'[0:0] -A FORWARD -d 192.168.122.0/24 -o virbr0 -m state --state RELATED'
',ESTABLISHED -j ACCEPT ',
'[0:0] -A FORWARD -s 192.168.122.0/24 -i virbr0 -j ACCEPT ',
'[0:0] -A FORWARD -i virbr0 -o virbr0 -j ACCEPT ',
'[0:0] -A FORWARD -o virbr0 -j REJECT '
'--reject-with icmp-port-unreachable ',
'[0:0] -A FORWARD -i virbr0 -j REJECT '
'--reject-with icmp-port-unreachable ',
'COMMIT',
'# Completed on Mon Dec 6 11:54:13 2010',
]
_in6_filter_rules = [
'# Generated by ip6tables-save v1.4.4 on Tue Jan 18 23:47:56 2011',
'*filter',
':INPUT ACCEPT [349155:75810423]',
':FORWARD ACCEPT [0:0]',
':OUTPUT ACCEPT [349256:75777230]',
'COMMIT',
'# Completed on Tue Jan 18 23:47:56 2011',
]
def setUp(self):
super(XenAPIDom0IptablesFirewallTestCase, self).setUp()
self.flags(connection_url='test_url',
connection_password='test_pass',
group='xenserver')
self.flags(instance_name_template='%d',
firewall_driver='nova.virt.xenapi.firewall.'
'Dom0IptablesFirewallDriver')
self.user_id = 'mappin'
self.project_id = 'fake'
stubs.stubout_session(self.stubs, stubs.FakeSessionForFirewallTests,
test_case=self)
self.context = context.RequestContext(self.user_id, self.project_id)
self.network = importutils.import_object(CONF.network_manager)
self.conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
self.fw = self.conn._vmops.firewall_driver
def _create_instance_ref(self):
return db.instance_create(self.context,
{'user_id': self.user_id,
'project_id': self.project_id,
'instance_type_id': 1})
def _create_test_security_group(self):
admin_ctxt = context.get_admin_context()
secgroup = db.security_group_create(admin_ctxt,
{'user_id': self.user_id,
'project_id': self.project_id,
'name': 'testgroup',
'description': 'test group'})
db.security_group_rule_create(admin_ctxt,
{'parent_group_id': secgroup['id'],
'protocol': 'icmp',
'from_port': -1,
'to_port': -1,
'cidr': '192.168.11.0/24'})
db.security_group_rule_create(admin_ctxt,
{'parent_group_id': secgroup['id'],
'protocol': 'icmp',
'from_port': 8,
'to_port': -1,
'cidr': '192.168.11.0/24'})
db.security_group_rule_create(admin_ctxt,
{'parent_group_id': secgroup['id'],
'protocol': 'tcp',
'from_port': 80,
'to_port': 81,
'cidr': '192.168.10.0/24'})
return secgroup
def _validate_security_group(self):
in_rules = [l for l in self._in_rules if not l.startswith('#')]
for rule in in_rules:
if 'nova' not in rule:
self.assertIn(rule, self._out_rules,
'Rule went missing: %s' % rule)
instance_chain = None
for rule in self._out_rules:
# This is pretty crude, but it'll do for now
# last two octets change
if re.search('-d 192.168.[0-9]{1,3}.[0-9]{1,3} -j', rule):
instance_chain = rule.split(' ')[-1]
break
self.assertTrue(instance_chain, "The instance chain wasn't added")
security_group_chain = None
for rule in self._out_rules:
# This is pretty crude, but it'll do for now
if '-A %s -j' % instance_chain in rule:
security_group_chain = rule.split(' ')[-1]
break
self.assertTrue(security_group_chain,
"The security group chain wasn't added")
regex = re.compile('\[0\:0\] -A .* -j ACCEPT -p icmp'
' -s 192.168.11.0/24')
match_rules = [rule for rule in self._out_rules if regex.match(rule)]
self.assertGreater(len(match_rules), 0,
"ICMP acceptance rule wasn't added")
regex = re.compile('\[0\:0\] -A .* -j ACCEPT -p icmp -m icmp'
' --icmp-type 8 -s 192.168.11.0/24')
match_rules = [rule for rule in self._out_rules if regex.match(rule)]
self.assertGreater(len(match_rules), 0,
"ICMP Echo Request acceptance rule wasn't added")
regex = re.compile('\[0\:0\] -A .* -j ACCEPT -p tcp --dport 80:81'
' -s 192.168.10.0/24')
match_rules = [rule for rule in self._out_rules if regex.match(rule)]
self.assertGreater(len(match_rules), 0,
"TCP port 80/81 acceptance rule wasn't added")
def test_static_filters(self):
instance_ref = self._create_instance_ref()
src_instance_ref = self._create_instance_ref()
admin_ctxt = context.get_admin_context()
secgroup = self._create_test_security_group()
src_secgroup = db.security_group_create(admin_ctxt,
{'user_id': self.user_id,
'project_id': self.project_id,
'name': 'testsourcegroup',
'description': 'src group'})
db.security_group_rule_create(admin_ctxt,
{'parent_group_id': secgroup['id'],
'protocol': 'tcp',
'from_port': 80,
'to_port': 81,
'group_id': src_secgroup['id']})
db.instance_add_security_group(admin_ctxt, instance_ref['uuid'],
secgroup['id'])
db.instance_add_security_group(admin_ctxt, src_instance_ref['uuid'],
src_secgroup['id'])
instance_ref = db.instance_get(admin_ctxt, instance_ref['id'])
src_instance_ref = db.instance_get(admin_ctxt, src_instance_ref['id'])
network_model = fake_network.fake_get_instance_nw_info(self, 1)
self.stubs.Set(objects.Instance, 'get_network_info',
lambda instance: network_model)
self.fw.prepare_instance_filter(instance_ref, network_model)
self.fw.apply_instance_filter(instance_ref, network_model)
self._validate_security_group()
# Extra test for TCP acceptance rules
for ip in network_model.fixed_ips():
if ip['version'] != 4:
continue
regex = re.compile('\[0\:0\] -A .* -j ACCEPT -p tcp'
' --dport 80:81 -s %s' % ip['address'])
match_rules = [rule for rule in self._out_rules
if regex.match(rule)]
self.assertGreater(len(match_rules), 0,
"TCP port 80/81 acceptance rule wasn't added")
db.instance_destroy(admin_ctxt, instance_ref['uuid'])
def test_filters_for_instance_with_ip_v6(self):
self.flags(use_ipv6=True)
network_info = fake_network.fake_get_instance_nw_info(self, 1)
rulesv4, rulesv6 = self.fw._filters_for_instance("fake", network_info)
self.assertEqual(len(rulesv4), 2)
self.assertEqual(len(rulesv6), 1)
def test_filters_for_instance_without_ip_v6(self):
self.flags(use_ipv6=False)
network_info = fake_network.fake_get_instance_nw_info(self, 1)
rulesv4, rulesv6 = self.fw._filters_for_instance("fake", network_info)
self.assertEqual(len(rulesv4), 2)
self.assertEqual(len(rulesv6), 0)
def test_multinic_iptables(self):
ipv4_rules_per_addr = 1
ipv4_addr_per_network = 2
ipv6_rules_per_addr = 1
ipv6_addr_per_network = 1
networks_count = 5
instance_ref = self._create_instance_ref()
_get_instance_nw_info = fake_network.fake_get_instance_nw_info
network_info = _get_instance_nw_info(self,
networks_count,
ipv4_addr_per_network)
network_info[0]['network']['subnets'][0]['meta']['dhcp_server'] = \
'1.1.1.1'
ipv4_len = len(self.fw.iptables.ipv4['filter'].rules)
ipv6_len = len(self.fw.iptables.ipv6['filter'].rules)
inst_ipv4, inst_ipv6 = self.fw.instance_rules(instance_ref,
network_info)
self.fw.prepare_instance_filter(instance_ref, network_info)
ipv4 = self.fw.iptables.ipv4['filter'].rules
ipv6 = self.fw.iptables.ipv6['filter'].rules
ipv4_network_rules = len(ipv4) - len(inst_ipv4) - ipv4_len
ipv6_network_rules = len(ipv6) - len(inst_ipv6) - ipv6_len
# Extra rules are for the DHCP request
rules = (ipv4_rules_per_addr * ipv4_addr_per_network *
networks_count) + 2
self.assertEqual(ipv4_network_rules, rules)
self.assertEqual(ipv6_network_rules,
ipv6_rules_per_addr * ipv6_addr_per_network * networks_count)
def test_do_refresh_security_group_rules(self):
admin_ctxt = context.get_admin_context()
instance_ref = self._create_instance_ref()
network_info = fake_network.fake_get_instance_nw_info(self, 1, 1)
secgroup = self._create_test_security_group()
db.instance_add_security_group(admin_ctxt, instance_ref['uuid'],
secgroup['id'])
self.fw.prepare_instance_filter(instance_ref, network_info)
self.fw.instance_info[instance_ref['id']] = (instance_ref,
network_info)
self._validate_security_group()
# add a rule to the security group
db.security_group_rule_create(admin_ctxt,
{'parent_group_id': secgroup['id'],
'protocol': 'udp',
'from_port': 200,
'to_port': 299,
'cidr': '192.168.99.0/24'})
# validate the extra rule
self.fw.refresh_security_group_rules(secgroup)
regex = re.compile('\[0\:0\] -A .* -j ACCEPT -p udp --dport 200:299'
' -s 192.168.99.0/24')
match_rules = [rule for rule in self._out_rules if regex.match(rule)]
self.assertGreater(len(match_rules), 0,
"Rules were not updated properly. "
"The rule for UDP acceptance is missing")
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, 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, 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, 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, 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:
db.service_create(context,
{'host': service_host,
'binary': 'nova-compute',
'topic': 'compute',
'report_count': 0})
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://test_url',
connection_username='test_user',
connection_password='test_pass',
group='xenserver')
self.flags(instance_name_template='%d',
firewall_driver='nova.virt.xenapi.firewall.'
'Dom0IptablesFirewallDriver',
host='host',
compute_driver='xenapi.XenAPIDriver',
default_availability_zone='avail_zone1')
host_ref = xenapi_fake.get_all('host')[0]
stubs.stubout_session(self.stubs, 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())
def test_pool_add_to_aggregate_called_by_driver(self):
calls = []
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)
calls.append(pool_add_to_aggregate)
self.stubs.Set(self.conn._pool,
"add_to_aggregate",
pool_add_to_aggregate)
self.conn.add_to_aggregate("CONTEXT", "AGGREGATE", "HOST",
slave_info="SLAVEINFO")
self.assertIn(pool_add_to_aggregate, calls)
def test_pool_remove_from_aggregate_called_by_driver(self):
calls = []
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)
calls.append(pool_remove_from_aggregate)
self.stubs.Set(self.conn._pool,
"remove_from_aggregate",
pool_remove_from_aggregate)
self.conn.remove_from_aggregate("CONTEXT", "AGGREGATE", "HOST",
slave_info="SLAVEINFO")
self.assertIn(pool_remove_from_aggregate, calls)
def test_add_to_aggregate_for_first_host_sets_metadata(self):
def fake_init_pool(id, name):
fake_init_pool.called = True
self.stubs.Set(self.conn._pool, "_init_pool", fake_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(fake_init_pool.called)
self.assertThat(self.fake_metadata,
matchers.DictMatches(result.metadata))
def test_join_slave(self):
# Ensure join_slave gets called when the request gets to master.
def fake_join_slave(id, compute_uuid, host, url, user, password):
fake_join_slave.called = True
self.stubs.Set(self.conn._pool, "_join_slave", fake_join_slave)
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(fake_join_slave.called)
def test_add_to_aggregate_first_host(self):
def fake_pool_set_name_label(self, session, pool_ref, name):
fake_pool_set_name_label.called = True
self.stubs.Set(xenapi_fake.SessionBase, "pool_set_name_label",
fake_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(fake_pool_set_name_label.called)
def test_remove_from_aggregate_called(self):
def fake_remove_from_aggregate(context, aggregate, host):
fake_remove_from_aggregate.called = True
self.stubs.Set(self.conn._pool,
"remove_from_aggregate",
fake_remove_from_aggregate)
self.conn.remove_from_aggregate(None, None, None)
self.assertTrue(fake_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")
def test_remove_slave(self):
# Ensure eject slave gets called.
def fake_eject_slave(id, compute_uuid, host_uuid):
fake_eject_slave.called = True
self.stubs.Set(self.conn._pool, "_eject_slave", fake_eject_slave)
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(fake_eject_slave.called)
def test_remove_master_solo(self):
# Ensure metadata are cleared after removal.
def fake_clear_pool(id):
fake_clear_pool.called = True
self.stubs.Set(self.conn._pool, "_clear_pool", fake_clear_pool)
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(fake_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))
def test_remove_host_from_aggregate_error(self):
# 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]:
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')
def test_add_aggregate_host_raise_err(self):
# Ensure the undo operation works correctly on add.
def fake_driver_add_to_aggregate(context, aggregate, host, **_ignore):
raise exception.AggregateError(
aggregate_id='', action='', reason='')
self.stubs.Set(self.compute.driver, "add_to_aggregate",
fake_driver_add_to_aggregate)
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='test_url',
connection_password='test_pass',
group='xenserver')
self.flags(firewall_driver='nova.virt.xenapi.firewall.'
'Dom0IptablesFirewallDriver',
host='host')
db_fakes.stub_out_db_instance_api(self)
self.context = context.get_admin_context()
def test_live_migration_calls_vmops(self):
stubs.stubout_session(self.stubs, stubs.FakeSessionForVMTests)
self.conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
def fake_live_migrate(context, instance_ref, dest, post_method,
recover_method, block_migration, migrate_data):
fake_live_migrate.called = True
self.stubs.Set(self.conn._vmops, "live_migrate", fake_live_migrate)
self.conn.live_migration(None, None, None, None, None)
self.assertTrue(fake_live_migrate.called)
def test_pre_live_migration(self):
stubs.stubout_session(self.stubs, 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(vmops.VMOps, '_post_start_actions')
def test_post_live_migration_at_destination(self, mock_post_action):
# ensure method is present
stubs.stubout_session(self.stubs, stubs.FakeSessionForVMTests)
self.conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
fake_instance = {"name": "name"}
fake_network_info = "network_info"
def fake_fw(instance, network_info):
self.assertEqual(instance, fake_instance)
self.assertEqual(network_info, fake_network_info)
fake_fw.call_count += 1
def fake_create_kernel_and_ramdisk(context, session, instance,
name_label):
return "fake-kernel-file", "fake-ramdisk-file"
fake_fw.call_count = 0
_vmops = self.conn._vmops
self.stubs.Set(_vmops.firewall_driver,
'setup_basic_filtering', fake_fw)
self.stubs.Set(_vmops.firewall_driver,
'prepare_instance_filter', fake_fw)
self.stubs.Set(_vmops.firewall_driver,
'apply_instance_filter', fake_fw)
self.stubs.Set(vm_utils, "create_kernel_and_ramdisk",
fake_create_kernel_and_ramdisk)
def fake_get_vm_opaque_ref(instance):
fake_get_vm_opaque_ref.called = True
self.stubs.Set(_vmops, "_get_vm_opaque_ref", fake_get_vm_opaque_ref)
fake_get_vm_opaque_ref.called = False
def fake_strip_base_mirror_from_vdis(session, vm_ref):
fake_strip_base_mirror_from_vdis.called = True
self.stubs.Set(vm_utils, "strip_base_mirror_from_vdis",
fake_strip_base_mirror_from_vdis)
fake_strip_base_mirror_from_vdis.called = False
self.conn.post_live_migration_at_destination(None, fake_instance,
fake_network_info, None)
self.assertEqual(fake_fw.call_count, 3)
self.assertTrue(fake_get_vm_opaque_ref.called)
self.assertTrue(fake_strip_base_mirror_from_vdis.called)
mock_post_action.assert_called_once_with(fake_instance)
def test_check_can_live_migrate_destination_with_block_migration(self):
stubs.stubout_session(self.stubs, stubs.FakeSessionForVMTests)
self.conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
self.stubs.Set(vm_utils, "safe_find_sr", lambda _x: "asdf")
expected = {'block_migration': True,
'is_volume_backed': False,
'migrate_data': {
'migrate_send_data': {'value': 'fake_migrate_data'},
'destination_sr_ref': 'asdf'
}
}
result = self.conn.check_can_live_migrate_destination(self.context,
{'host': 'host'},
{}, {},
True, False)
result.is_volume_backed = False
self.assertEqual(expected, result.to_legacy_dict())
def test_check_live_migrate_destination_verifies_ip(self):
stubs.stubout_session(self.stubs, stubs.FakeSessionForVMTests)
self.conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
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.stubs.Set(vm_utils, "safe_find_sr", lambda _x: "asdf")
self.assertRaises(exception.MigrationError,
self.conn.check_can_live_migrate_destination,
self.context, {'host': 'host'},
{}, {},
True, False)
def test_check_can_live_migrate_destination_block_migration_fails(self):
stubs.stubout_session(self.stubs,
stubs.FakeSessionForFailedMigrateTests)
self.conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
self.assertRaises(exception.MigrationError,
self.conn.check_can_live_migrate_destination,
self.context, {'host': 'host'},
{}, {},
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, 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, stubs.FakeSessionForVMTests)
self.conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
self._add_default_live_migrate_stubs(self.conn)
def fake_get_iscsi_srs(destination_sr_ref, _vm_ref):
return ['sr_ref']
self.stubs.Set(self.conn._vmops, "_get_iscsi_srs",
fake_get_iscsi_srs)
def fake_is_xsm_sr_check_relaxed():
return True
self.stubs.Set(self.conn._vmops._session,
'is_xsm_sr_check_relaxed',
fake_is_xsm_sr_check_relaxed)
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.to_legacy_dict(),
result.to_legacy_dict())
def test_check_can_live_migrate_source_with_block_iscsi_fails(self):
stubs.stubout_session(self.stubs, stubs.FakeSessionForVMTests)
self.conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
self._add_default_live_migrate_stubs(self.conn)
def fake_get_iscsi_srs(destination_sr_ref, _vm_ref):
return ['sr_ref']
self.stubs.Set(self.conn._vmops, "_get_iscsi_srs",
fake_get_iscsi_srs)
def fake_is_xsm_sr_check_relaxed():
return False
self.stubs.Set(self.conn._vmops._session,
'is_xsm_sr_check_relaxed',
fake_is_xsm_sr_check_relaxed)
self.assertRaises(exception.MigrationError,
self.conn.check_can_live_migrate_source,
self.context, {'host': 'host'},
{})
def test_check_can_live_migrate_source_with_block_migrate_fails(self):
stubs.stubout_session(self.stubs,
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(objects.AggregateList, 'get_by_host')
def test_check_can_live_migrate_works(self, mock_get_by_host):
stubs.stubout_session(self.stubs, stubs.FakeSessionForVMTests)
self.conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
metadata = {'host': 'test_host_uuid'}
aggregate = objects.Aggregate(metadata=metadata)
aggregate_list = objects.AggregateList(objects=[aggregate])
mock_get_by_host.return_value = aggregate_list
instance = objects.Instance(host='host')
self.conn.check_can_live_migrate_destination(
self.context, instance, None, None)
mock_get_by_host.assert_called_once_with(
self.context, CONF.host, key='hypervisor_pool')
@mock.patch.object(objects.AggregateList, 'get_by_host')
def test_check_can_live_migrate_fails(self, mock_get_by_host):
stubs.stubout_session(self.stubs, stubs.FakeSessionForVMTests)
self.conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
metadata = {'dest_other': 'test_host_uuid'}
aggregate = objects.Aggregate(metadata=metadata)
aggregate_list = objects.AggregateList(objects=[aggregate])
mock_get_by_host.return_value = aggregate_list
instance = objects.Instance(host='host')
self.assertRaises(exception.MigrationError,
self.conn.check_can_live_migrate_destination,
self.context, instance, None, None)
mock_get_by_host.assert_called_once_with(
self.context, CONF.host, key='hypervisor_pool')
def test_live_migration(self):
stubs.stubout_session(self.stubs, stubs.FakeSessionForVMTests)
self.conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
def fake_lookup_kernel_ramdisk(session, vm_ref):
return "kernel", "ramdisk"
self.stubs.Set(vm_utils, "lookup_kernel_ramdisk",
fake_lookup_kernel_ramdisk)
def fake_get_vm_opaque_ref(instance):
return "fake_vm"
self.stubs.Set(self.conn._vmops, "_get_vm_opaque_ref",
fake_get_vm_opaque_ref)
def fake_get_host_opaque_ref(context, destination_hostname):
return "fake_host"
self.stubs.Set(self.conn._vmops, "_get_host_opaque_ref",
fake_get_host_opaque_ref)
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)
self.conn.live_migration(self.conn, None, None, post_method, None,
None, migrate_data)
self.assertTrue(post_method.called, "post_method.called")
def test_live_migration_on_failure(self):
stubs.stubout_session(self.stubs, stubs.FakeSessionForVMTests)
self.conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
def fake_get_vm_opaque_ref(instance):
return "fake_vm"
self.stubs.Set(self.conn._vmops, "_get_vm_opaque_ref",
fake_get_vm_opaque_ref)
def fake_get_host_opaque_ref(context, destination_hostname):
return "fake_host"
self.stubs.Set(self.conn._vmops, "_get_host_opaque_ref",
fake_get_host_opaque_ref)
def fake_call_xenapi(*args):
raise NotImplementedError()
self.stubs.Set(self.conn._vmops._session, "call_xenapi",
fake_call_xenapi)
def recover_method(context, instance, destination_hostname):
recover_method.called = True
migrate_data = objects.XenapiLiveMigrateData(
destination_sr_ref="foo",
migrate_send_data={"bar": "baz"},
block_migration=False)
self.assertRaises(NotImplementedError, self.conn.live_migration,
self.conn, None, None, None, recover_method,
None, migrate_data)
self.assertTrue(recover_method.called, "recover_method.called")
def test_live_migration_calls_post_migration(self):
stubs.stubout_session(self.stubs, 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")
def test_live_migration_block_cleans_srs(self):
stubs.stubout_session(self.stubs, stubs.FakeSessionForVMTests)
self.conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
self._add_default_live_migrate_stubs(self.conn)
def fake_get_iscsi_srs(context, instance):
return ['sr_ref']
self.stubs.Set(self.conn._vmops, "_get_iscsi_srs",
fake_get_iscsi_srs)
def fake_forget_sr(context, instance):
fake_forget_sr.called = True
self.stubs.Set(volume_utils, "forget_sr",
fake_forget_sr)
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)
self.conn.live_migration(self.conn, None, None, post_method, None,
True, migrate_data)
self.assertTrue(post_method.called, "post_method.called")
self.assertTrue(fake_forget_sr.called, "forget_sr.called")
def test_live_migration_with_block_migration_fails_migrate_send(self):
stubs.stubout_session(self.stubs,
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):
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.stubs, Session)
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
self._add_default_live_migrate_stubs(conn)
def fake_generate_vdi_map(destination_sr_ref, _vm_ref):
return fake_vdi_map
self.stubs.Set(conn._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)
def test_live_migrate_pool_migration_xapi_call_parameters(self):
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.stubs, Session)
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
self._add_default_live_migrate_stubs(conn)
def fake_get_host_opaque_ref(context, destination):
return "fake_ref"
self.stubs.Set(conn._vmops, "_get_host_opaque_ref",
fake_get_host_opaque_ref)
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=None,
post_method=dummy_callback, recover_method=dummy_callback,
block_migration=False, migrate_data=migrate_data)
def test_generate_vdi_map(self):
stubs.stubout_session(self.stubs, xenapi_fake.SessionBase)
conn = xenapi_conn.XenAPIDriver(fake.FakeVirtAPI(), False)
vm_ref = "fake_vm_ref"
def fake_find_sr(_session):
self.assertEqual(conn._session, _session)
return "source_sr_ref"
self.stubs.Set(vm_utils, "safe_find_sr", fake_find_sr)
def fake_get_instance_vdis_for_sr(_session, _vm_ref, _sr_ref):
self.assertEqual(conn._session, _session)
self.assertEqual(vm_ref, _vm_ref)
self.assertEqual("source_sr_ref", _sr_ref)
return ["vdi0", "vdi1"]
self.stubs.Set(vm_utils, "get_instance_vdis_for_sr",
fake_get_instance_vdis_for_sr)
result = conn._vmops._generate_vdi_map("dest_sr_ref", vm_ref)
self.assertEqual({"vdi0": "dest_sr_ref",
"vdi1": "dest_sr_ref"}, result)
@mock.patch.object(vmops.VMOps, "_delete_networks_and_bridges")
def test_rollback_live_migration_at_destination(self, mock_delete_network):
stubs.stubout_session(self.stubs, 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='test_url',
connection_password='test_pass',
group='xenserver')
self.flags(firewall_driver='nova.virt.xenapi.firewall.'
'Dom0IptablesFirewallDriver')
stubs.stubout_session(self.stubs, 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.stubs.Set(vmops.VMOps, '_get_vm_opaque_ref',
fake_get_vm_opaque_ref)
self.stubs.Set(vmops.VMOps, '_add_to_param_xenstore',
fake_add_to_param_xenstore)
self.stubs.Set(vmops.VMOps, '_remove_from_param_xenstore',
fake_remove_from_param_xenstore)
self.stubs.Set(vmops.VMOps, '_write_to_xenstore',
fake_write_to_xenstore)
self.stubs.Set(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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