nova/nova/tests/compute/test_compute_mgr.py

1923 lines
90 KiB
Python

# 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.
"""Unit tests for ComputeManager()."""
import contextlib
import time
from eventlet import event as eventlet_event
import mock
import mox
from oslo.config import cfg
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
from nova.conductor import rpcapi as conductor_rpcapi
from nova import context
from nova import db
from nova import exception
from nova.network import model as network_model
from nova.objects import base as obj_base
from nova.objects import block_device as block_device_obj
from nova.objects import external_event as external_event_obj
from nova.objects import instance as instance_obj
from nova.objects import migration as migration_obj
from nova.openstack.common import importutils
from nova.openstack.common import uuidutils
from nova import test
from nova.tests.compute import fake_resource_tracker
from nova.tests import fake_block_device
from nova.tests import fake_instance
from nova.tests.objects import test_instance_info_cache
CONF = cfg.CONF
CONF.import_opt('compute_manager', 'nova.service')
class ComputeManagerUnitTestCase(test.NoDBTestCase):
def setUp(self):
super(ComputeManagerUnitTestCase, self).setUp()
self.compute = importutils.import_object(CONF.compute_manager)
self.context = context.RequestContext('fake', 'fake')
def test_allocate_network_succeeds_after_retries(self):
self.flags(network_allocate_retries=8)
nwapi = self.compute.network_api
self.mox.StubOutWithMock(nwapi, 'allocate_for_instance')
self.mox.StubOutWithMock(self.compute, '_instance_update')
self.mox.StubOutWithMock(time, 'sleep')
instance = fake_instance.fake_db_instance(system_metadata={})
is_vpn = 'fake-is-vpn'
req_networks = 'fake-req-networks'
macs = 'fake-macs'
sec_groups = 'fake-sec-groups'
final_result = 'meow'
dhcp_options = None
expected_sleep_times = [1, 2, 4, 8, 16, 30, 30, 30]
for sleep_time in expected_sleep_times:
nwapi.allocate_for_instance(
self.context, instance, vpn=is_vpn,
requested_networks=req_networks, macs=macs,
security_groups=sec_groups,
dhcp_options=dhcp_options).AndRaise(
test.TestingException())
time.sleep(sleep_time)
nwapi.allocate_for_instance(
self.context, instance, vpn=is_vpn,
requested_networks=req_networks, macs=macs,
security_groups=sec_groups,
dhcp_options=dhcp_options).AndReturn(final_result)
self.compute._instance_update(self.context, instance['uuid'],
system_metadata={'network_allocated': 'True'})
self.mox.ReplayAll()
res = self.compute._allocate_network_async(self.context, instance,
req_networks,
macs,
sec_groups,
is_vpn,
dhcp_options)
self.assertEqual(final_result, res)
def test_allocate_network_fails(self):
self.flags(network_allocate_retries=0)
nwapi = self.compute.network_api
self.mox.StubOutWithMock(nwapi, 'allocate_for_instance')
instance = {}
is_vpn = 'fake-is-vpn'
req_networks = 'fake-req-networks'
macs = 'fake-macs'
sec_groups = 'fake-sec-groups'
dhcp_options = None
nwapi.allocate_for_instance(
self.context, instance, vpn=is_vpn,
requested_networks=req_networks, macs=macs,
security_groups=sec_groups,
dhcp_options=dhcp_options).AndRaise(test.TestingException())
self.mox.ReplayAll()
self.assertRaises(test.TestingException,
self.compute._allocate_network_async,
self.context, instance, req_networks, macs,
sec_groups, is_vpn, dhcp_options)
def test_allocate_network_neg_conf_value_treated_as_zero(self):
self.flags(network_allocate_retries=-1)
nwapi = self.compute.network_api
self.mox.StubOutWithMock(nwapi, 'allocate_for_instance')
instance = {}
is_vpn = 'fake-is-vpn'
req_networks = 'fake-req-networks'
macs = 'fake-macs'
sec_groups = 'fake-sec-groups'
dhcp_options = None
# Only attempted once.
nwapi.allocate_for_instance(
self.context, instance, vpn=is_vpn,
requested_networks=req_networks, macs=macs,
security_groups=sec_groups,
dhcp_options=dhcp_options).AndRaise(test.TestingException())
self.mox.ReplayAll()
self.assertRaises(test.TestingException,
self.compute._allocate_network_async,
self.context, instance, req_networks, macs,
sec_groups, is_vpn, dhcp_options)
def test_init_host(self):
our_host = self.compute.host
fake_context = 'fake-context'
inst = fake_instance.fake_db_instance(
vm_state=vm_states.ACTIVE,
info_cache=dict(test_instance_info_cache.fake_info_cache,
network_info=None),
security_groups=None)
startup_instances = [inst, inst, inst]
def _do_mock_calls(defer_iptables_apply):
self.compute.driver.init_host(host=our_host)
context.get_admin_context().AndReturn(fake_context)
db.instance_get_all_by_host(
fake_context, our_host, columns_to_join=['info_cache'],
use_slave=False
).AndReturn(startup_instances)
if defer_iptables_apply:
self.compute.driver.filter_defer_apply_on()
self.compute._destroy_evacuated_instances(fake_context)
self.compute._init_instance(fake_context,
mox.IsA(instance_obj.Instance))
self.compute._init_instance(fake_context,
mox.IsA(instance_obj.Instance))
self.compute._init_instance(fake_context,
mox.IsA(instance_obj.Instance))
if defer_iptables_apply:
self.compute.driver.filter_defer_apply_off()
self.mox.StubOutWithMock(self.compute.driver, 'init_host')
self.mox.StubOutWithMock(self.compute.driver,
'filter_defer_apply_on')
self.mox.StubOutWithMock(self.compute.driver,
'filter_defer_apply_off')
self.mox.StubOutWithMock(db, 'instance_get_all_by_host')
self.mox.StubOutWithMock(context, 'get_admin_context')
self.mox.StubOutWithMock(self.compute,
'_destroy_evacuated_instances')
self.mox.StubOutWithMock(self.compute,
'_init_instance')
# Test with defer_iptables_apply
self.flags(defer_iptables_apply=True)
_do_mock_calls(True)
self.mox.ReplayAll()
self.compute.init_host()
self.mox.VerifyAll()
# Test without defer_iptables_apply
self.mox.ResetAll()
self.flags(defer_iptables_apply=False)
_do_mock_calls(False)
self.mox.ReplayAll()
self.compute.init_host()
# tearDown() uses context.get_admin_context(), so we have
# to do the verification here and unstub it.
self.mox.VerifyAll()
self.mox.UnsetStubs()
@mock.patch('nova.objects.instance.InstanceList')
def test_cleanup_host(self, mock_instance_list):
# just testing whether the cleanup_host method
# when fired will invoke the underlying driver's
# equivalent method.
mock_instance_list.get_by_host.return_value = []
with mock.patch.object(self.compute, 'driver') as mock_driver:
self.compute.init_host()
mock_driver.init_host.assert_called_once()
self.compute.cleanup_host()
mock_driver.cleanup_host.assert_called_once()
def test_init_host_with_deleted_migration(self):
our_host = self.compute.host
not_our_host = 'not-' + our_host
fake_context = 'fake-context'
deleted_instance = fake_instance.fake_instance_obj(
self.context, host=not_our_host, uuid='fake-uuid')
self.mox.StubOutWithMock(self.compute.driver, 'init_host')
self.mox.StubOutWithMock(self.compute.driver, 'destroy')
self.mox.StubOutWithMock(db, 'instance_get_all_by_host')
self.mox.StubOutWithMock(context, 'get_admin_context')
self.mox.StubOutWithMock(self.compute, 'init_virt_events')
self.mox.StubOutWithMock(self.compute, '_get_instances_on_driver')
self.mox.StubOutWithMock(self.compute, '_init_instance')
self.mox.StubOutWithMock(self.compute, '_get_instance_nw_info')
self.compute.driver.init_host(host=our_host)
context.get_admin_context().AndReturn(fake_context)
db.instance_get_all_by_host(fake_context, our_host,
columns_to_join=['info_cache'],
use_slave=False
).AndReturn([])
self.compute.init_virt_events()
# simulate failed instance
self.compute._get_instances_on_driver(
fake_context, {'deleted': False}).AndReturn([deleted_instance])
self.compute._get_instance_nw_info(fake_context, deleted_instance
).AndRaise(exception.InstanceNotFound(
instance_id=deleted_instance['uuid']))
# ensure driver.destroy is called so that driver may
# clean up any dangling files
self.compute.driver.destroy(fake_context, deleted_instance,
mox.IgnoreArg(), mox.IgnoreArg(), mox.IgnoreArg())
self.mox.ReplayAll()
self.compute.init_host()
# tearDown() uses context.get_admin_context(), so we have
# to do the verification here and unstub it.
self.mox.VerifyAll()
self.mox.UnsetStubs()
def test_init_instance_failed_resume_sets_error(self):
instance = fake_instance.fake_instance_obj(
self.context,
uuid='fake-uuid',
info_cache=None,
power_state=power_state.RUNNING,
vm_state=vm_states.ACTIVE,
task_state=None,
expected_attrs=['info_cache'])
self.flags(resume_guests_state_on_host_boot=True)
self.mox.StubOutWithMock(self.compute, '_get_power_state')
self.mox.StubOutWithMock(self.compute.driver, 'plug_vifs')
self.mox.StubOutWithMock(self.compute.driver,
'resume_state_on_host_boot')
self.mox.StubOutWithMock(self.compute,
'_get_instance_volume_block_device_info')
self.mox.StubOutWithMock(self.compute,
'_set_instance_error_state')
self.compute._get_power_state(mox.IgnoreArg(),
instance).AndReturn(power_state.SHUTDOWN)
self.compute._get_power_state(mox.IgnoreArg(),
instance).AndReturn(power_state.SHUTDOWN)
self.compute._get_power_state(mox.IgnoreArg(),
instance).AndReturn(power_state.SHUTDOWN)
self.compute.driver.plug_vifs(instance, mox.IgnoreArg())
self.compute._get_instance_volume_block_device_info(mox.IgnoreArg(),
instance).AndReturn('fake-bdm')
self.compute.driver.resume_state_on_host_boot(mox.IgnoreArg(),
instance, mox.IgnoreArg(),
'fake-bdm').AndRaise(test.TestingException)
self.compute._set_instance_error_state(mox.IgnoreArg(),
instance['uuid'])
self.mox.ReplayAll()
self.compute._init_instance('fake-context', instance)
def test_init_instance_stuck_in_deleting(self):
instance = fake_instance.fake_instance_obj(
self.context,
uuid='fake-uuid',
power_state=power_state.RUNNING,
vm_state=vm_states.ACTIVE,
task_state=task_states.DELETING)
self.mox.StubOutWithMock(block_device_obj.BlockDeviceMappingList,
'get_by_instance_uuid')
self.mox.StubOutWithMock(self.compute, '_delete_instance')
self.mox.StubOutWithMock(instance, 'obj_load_attr')
bdms = []
instance.obj_load_attr('metadata')
instance.obj_load_attr('system_metadata')
block_device_obj.BlockDeviceMappingList.get_by_instance_uuid(
self.context, instance.uuid).AndReturn(bdms)
self.compute._delete_instance(self.context, instance, bdms)
self.mox.ReplayAll()
self.compute._init_instance(self.context, instance)
def _test_init_instance_reverts_crashed_migrations(self,
old_vm_state=None):
power_on = True if (not old_vm_state or
old_vm_state == vm_states.ACTIVE) else False
sys_meta = {
'old_vm_state': old_vm_state
}
instance = fake_instance.fake_instance_obj(
self.context,
uuid='foo',
vm_state=vm_states.ERROR,
task_state=task_states.RESIZE_MIGRATING,
power_state=power_state.SHUTDOWN,
system_metadata=sys_meta,
expected_attrs=['system_metadata'])
self.mox.StubOutWithMock(compute_utils, 'get_nw_info_for_instance')
self.mox.StubOutWithMock(self.compute.driver, 'plug_vifs')
self.mox.StubOutWithMock(self.compute.driver,
'finish_revert_migration')
self.mox.StubOutWithMock(self.compute,
'_get_instance_volume_block_device_info')
self.mox.StubOutWithMock(self.compute.driver, 'get_info')
self.mox.StubOutWithMock(instance, 'save')
self.mox.StubOutWithMock(self.compute, '_retry_reboot')
self.compute._retry_reboot(self.context, instance).AndReturn(
(False, None))
compute_utils.get_nw_info_for_instance(instance).AndReturn(
network_model.NetworkInfo())
self.compute.driver.plug_vifs(instance, [])
self.compute._get_instance_volume_block_device_info(
self.context, instance).AndReturn([])
self.compute.driver.finish_revert_migration(self.context, instance,
[], [], power_on)
instance.save()
self.compute.driver.get_info(instance).AndReturn(
{'state': power_state.SHUTDOWN})
self.compute.driver.get_info(instance).AndReturn(
{'state': power_state.SHUTDOWN})
self.mox.ReplayAll()
self.compute._init_instance(self.context, instance)
self.assertIsNone(instance.task_state)
def test_init_instance_reverts_crashed_migration_from_active(self):
self._test_init_instance_reverts_crashed_migrations(
old_vm_state=vm_states.ACTIVE)
def test_init_instance_reverts_crashed_migration_from_stopped(self):
self._test_init_instance_reverts_crashed_migrations(
old_vm_state=vm_states.STOPPED)
def test_init_instance_reverts_crashed_migration_no_old_state(self):
self._test_init_instance_reverts_crashed_migrations(old_vm_state=None)
def test_init_instance_sets_building_error(self):
instance = fake_instance.fake_instance_obj(
self.context,
uuid='foo',
vm_state=vm_states.BUILDING,
task_state=None)
with mock.patch.object(instance, 'save') as save:
self.compute._init_instance(self.context, instance)
save.assert_called_once_with()
self.assertIsNone(instance.task_state)
self.assertEqual(vm_states.ERROR, instance.vm_state)
def _test_init_instance_sets_building_tasks_error(self, instance):
with mock.patch.object(instance, 'save') as save:
self.compute._init_instance(self.context, instance)
save.assert_called_once_with()
self.assertIsNone(instance.task_state)
self.assertEqual(vm_states.ERROR, instance.vm_state)
def test_init_instance_sets_building_tasks_error_scheduling(self):
instance = fake_instance.fake_instance_obj(
self.context,
uuid='foo',
vm_state=None,
task_state=task_states.SCHEDULING)
self._test_init_instance_sets_building_tasks_error(instance)
def test_init_instance_sets_building_tasks_error_block_device(self):
instance = instance_obj.Instance(self.context)
instance.uuid = 'foo'
instance.vm_state = None
instance.task_state = task_states.BLOCK_DEVICE_MAPPING
self._test_init_instance_sets_building_tasks_error(instance)
def test_init_instance_sets_building_tasks_error_networking(self):
instance = instance_obj.Instance(self.context)
instance.uuid = 'foo'
instance.vm_state = None
instance.task_state = task_states.NETWORKING
self._test_init_instance_sets_building_tasks_error(instance)
def test_init_instance_sets_building_tasks_error_spawning(self):
instance = instance_obj.Instance(self.context)
instance.uuid = 'foo'
instance.vm_state = None
instance.task_state = task_states.SPAWNING
self._test_init_instance_sets_building_tasks_error(instance)
def _test_init_instance_cleans_image_states(self, instance):
with mock.patch.object(instance, 'save') as save:
self.compute._get_power_state = mock.Mock()
instance.info_cache = None
instance.power_state = power_state.RUNNING
self.compute._init_instance(self.context, instance)
save.assert_called_once_with()
self.assertIsNone(instance.task_state)
def test_init_instance_cleans_image_state_pending_upload(self):
instance = instance_obj.Instance(self.context)
instance.uuid = 'foo'
instance.vm_state = vm_states.ACTIVE
instance.task_state = task_states.IMAGE_PENDING_UPLOAD
self._test_init_instance_cleans_image_states(instance)
def test_init_instance_cleans_image_state_uploading(self):
instance = instance_obj.Instance(self.context)
instance.uuid = 'foo'
instance.vm_state = vm_states.ACTIVE
instance.task_state = task_states.IMAGE_UPLOADING
self._test_init_instance_cleans_image_states(instance)
def test_init_instance_cleans_image_state_snapshot(self):
instance = instance_obj.Instance(self.context)
instance.uuid = 'foo'
instance.vm_state = vm_states.ACTIVE
instance.task_state = task_states.IMAGE_SNAPSHOT
self._test_init_instance_cleans_image_states(instance)
def test_init_instance_cleans_image_state_snapshot_pending(self):
instance = instance_obj.Instance(self.context)
instance.uuid = 'foo'
instance.vm_state = vm_states.ACTIVE
instance.task_state = task_states.IMAGE_SNAPSHOT_PENDING
self._test_init_instance_cleans_image_states(instance)
def test_init_instance_errors_when_not_migrating(self):
instance = instance_obj.Instance(self.context)
instance.uuid = 'foo'
instance.vm_state = vm_states.ERROR
instance.task_state = task_states.IMAGE_UPLOADING
self.mox.StubOutWithMock(compute_utils, 'get_nw_info_for_instance')
self.mox.ReplayAll()
self.compute._init_instance(self.context, instance)
self.mox.VerifyAll()
def test_init_instance_deletes_error_deleting_instance(self):
instance = fake_instance.fake_instance_obj(
self.context,
uuid='fake',
vm_state=vm_states.ERROR,
task_state=task_states.DELETING)
self.mox.StubOutWithMock(block_device_obj.BlockDeviceMappingList,
'get_by_instance_uuid')
self.mox.StubOutWithMock(self.compute, '_delete_instance')
self.mox.StubOutWithMock(instance, 'obj_load_attr')
bdms = []
instance.obj_load_attr('metadata')
instance.obj_load_attr('system_metadata')
block_device_obj.BlockDeviceMappingList.get_by_instance_uuid(
self.context, instance.uuid).AndReturn(bdms)
self.compute._delete_instance(self.context, instance, bdms)
self.mox.ReplayAll()
self.compute._init_instance(self.context, instance)
self.mox.VerifyAll()
def _test_init_instance_retries_reboot(self, instance, reboot_type,
return_power_state):
with contextlib.nested(
mock.patch.object(self.compute, '_get_power_state',
return_value=return_power_state),
mock.patch.object(self.compute.compute_rpcapi, 'reboot_instance'),
mock.patch.object(compute_utils, 'get_nw_info_for_instance')
) as (
_get_power_state,
reboot_instance,
get_nw_info_for_instance
):
self.compute._init_instance(self.context, instance)
call = mock.call(self.context, instance, block_device_info=None,
reboot_type=reboot_type)
reboot_instance.assert_has_calls([call])
def test_init_instance_retries_reboot_pending(self):
instance = instance_obj.Instance(self.context)
instance.uuid = 'foo'
instance.task_state = task_states.REBOOT_PENDING
for state in vm_states.ALLOW_SOFT_REBOOT:
instance.vm_state = state
self._test_init_instance_retries_reboot(instance, 'SOFT',
power_state.RUNNING)
def test_init_instance_retries_reboot_pending_hard(self):
instance = instance_obj.Instance(self.context)
instance.uuid = 'foo'
instance.task_state = task_states.REBOOT_PENDING_HARD
for state in vm_states.ALLOW_HARD_REBOOT:
# NOTE(dave-mcnally) while a reboot of a vm in error state is
# possible we don't attempt to recover an error during init
if state == vm_states.ERROR:
continue
instance.vm_state = state
self._test_init_instance_retries_reboot(instance, 'HARD',
power_state.RUNNING)
def test_init_instance_retries_reboot_started(self):
instance = instance_obj.Instance(self.context)
instance.uuid = 'foo'
instance.vm_state = vm_states.ACTIVE
instance.task_state = task_states.REBOOT_STARTED
self._test_init_instance_retries_reboot(instance, 'HARD',
power_state.NOSTATE)
def test_init_instance_retries_reboot_started_hard(self):
instance = instance_obj.Instance(self.context)
instance.uuid = 'foo'
instance.vm_state = vm_states.ACTIVE
instance.task_state = task_states.REBOOT_STARTED_HARD
self._test_init_instance_retries_reboot(instance, 'HARD',
power_state.NOSTATE)
def _test_init_instance_cleans_reboot_state(self, instance):
with contextlib.nested(
mock.patch.object(self.compute, '_get_power_state',
return_value=power_state.RUNNING),
mock.patch.object(instance, 'save', autospec=True),
mock.patch.object(compute_utils, 'get_nw_info_for_instance')
) as (
_get_power_state,
instance_save,
get_nw_info_for_instance
):
self.compute._init_instance(self.context, instance)
instance_save.assert_called_once_with()
self.assertIsNone(instance.task_state)
self.assertEqual(vm_states.ACTIVE, instance.vm_state)
def test_init_instance_cleans_image_state_reboot_started(self):
instance = instance_obj.Instance(self.context)
instance.uuid = 'foo'
instance.vm_state = vm_states.ACTIVE
instance.task_state = task_states.REBOOT_STARTED
instance.power_state = power_state.RUNNING
self._test_init_instance_cleans_reboot_state(instance)
def test_init_instance_cleans_image_state_reboot_started_hard(self):
instance = instance_obj.Instance(self.context)
instance.uuid = 'foo'
instance.vm_state = vm_states.ACTIVE
instance.task_state = task_states.REBOOT_STARTED_HARD
instance.power_state = power_state.RUNNING
self._test_init_instance_cleans_reboot_state(instance)
def test_init_instance_retries_power_off(self):
instance = instance_obj.Instance(self.context)
instance.uuid = 'foo'
instance.id = 1
instance.vm_state = vm_states.ACTIVE
instance.task_state = task_states.POWERING_OFF
with mock.patch.object(self.compute, 'stop_instance'):
self.compute._init_instance(self.context, instance)
call = mock.call(self.context, instance)
self.compute.stop_instance.assert_has_calls([call])
def test_init_instance_retries_power_on(self):
instance = instance_obj.Instance(self.context)
instance.uuid = 'foo'
instance.id = 1
instance.vm_state = vm_states.ACTIVE
instance.task_state = task_states.POWERING_ON
with mock.patch.object(self.compute, 'start_instance'):
self.compute._init_instance(self.context, instance)
call = mock.call(self.context, instance)
self.compute.start_instance.assert_has_calls([call])
def test_init_instance_retries_power_on_silent_exception(self):
instance = instance_obj.Instance(self.context)
instance.uuid = 'foo'
instance.id = 1
instance.vm_state = vm_states.ACTIVE
instance.task_state = task_states.POWERING_ON
with mock.patch.object(self.compute, 'start_instance',
return_value=Exception):
init_return = self.compute._init_instance(self.context, instance)
call = mock.call(self.context, instance)
self.compute.start_instance.assert_has_calls([call])
self.assertIsNone(init_return)
def test_init_instance_retries_power_off_silent_exception(self):
instance = instance_obj.Instance(self.context)
instance.uuid = 'foo'
instance.id = 1
instance.vm_state = vm_states.ACTIVE
instance.task_state = task_states.POWERING_OFF
with mock.patch.object(self.compute, 'stop_instance',
return_value=Exception):
init_return = self.compute._init_instance(self.context, instance)
call = mock.call(self.context, instance)
self.compute.stop_instance.assert_has_calls([call])
self.assertIsNone(init_return)
def test_get_instances_on_driver(self):
fake_context = context.get_admin_context()
driver_instances = []
for x in xrange(10):
driver_instances.append(fake_instance.fake_db_instance())
self.mox.StubOutWithMock(self.compute.driver,
'list_instance_uuids')
self.mox.StubOutWithMock(db, 'instance_get_all_by_filters')
self.compute.driver.list_instance_uuids().AndReturn(
[inst['uuid'] for inst in driver_instances])
db.instance_get_all_by_filters(
fake_context,
{'uuid': [inst['uuid'] for
inst in driver_instances]},
'created_at', 'desc', columns_to_join=None,
limit=None, marker=None,
use_slave=True).AndReturn(
driver_instances)
self.mox.ReplayAll()
result = self.compute._get_instances_on_driver(fake_context)
self.assertEqual([x['uuid'] for x in driver_instances],
[x['uuid'] for x in result])
def test_get_instances_on_driver_fallback(self):
# Test getting instances when driver doesn't support
# 'list_instance_uuids'
self.compute.host = 'host'
filters = {'host': self.compute.host}
fake_context = context.get_admin_context()
self.flags(instance_name_template='inst-%i')
all_instances = []
driver_instances = []
for x in xrange(10):
instance = fake_instance.fake_db_instance(name='inst-%i' % x,
id=x)
if x % 2:
driver_instances.append(instance)
all_instances.append(instance)
self.mox.StubOutWithMock(self.compute.driver,
'list_instance_uuids')
self.mox.StubOutWithMock(self.compute.driver,
'list_instances')
self.mox.StubOutWithMock(db, 'instance_get_all_by_filters')
self.compute.driver.list_instance_uuids().AndRaise(
NotImplementedError())
self.compute.driver.list_instances().AndReturn(
[inst['name'] for inst in driver_instances])
db.instance_get_all_by_filters(
fake_context, filters,
'created_at', 'desc', columns_to_join=None,
limit=None, marker=None,
use_slave=True).AndReturn(all_instances)
self.mox.ReplayAll()
result = self.compute._get_instances_on_driver(fake_context, filters)
self.assertEqual([x['uuid'] for x in driver_instances],
[x['uuid'] for x in result])
def test_instance_usage_audit(self):
instances = [instance_obj.Instance(uuid='foo')]
@classmethod
def fake_get(*a, **k):
return instances
self.flags(instance_usage_audit=True)
self.stubs.Set(compute_utils, 'has_audit_been_run',
lambda *a, **k: False)
self.stubs.Set(instance_obj.InstanceList,
'get_active_by_window_joined', fake_get)
self.stubs.Set(compute_utils, 'start_instance_usage_audit',
lambda *a, **k: None)
self.stubs.Set(compute_utils, 'finish_instance_usage_audit',
lambda *a, **k: None)
self.mox.StubOutWithMock(self.compute.conductor_api,
'notify_usage_exists')
self.compute.conductor_api.notify_usage_exists(
self.context, instances[0], ignore_missing_network_data=False)
self.mox.ReplayAll()
self.compute._instance_usage_audit(self.context)
def _get_sync_instance(self, power_state, vm_state, task_state=None):
instance = instance_obj.Instance()
instance.uuid = 'fake-uuid'
instance.power_state = power_state
instance.vm_state = vm_state
instance.host = self.compute.host
instance.task_state = task_state
self.mox.StubOutWithMock(instance, 'refresh')
self.mox.StubOutWithMock(instance, 'save')
return instance
def test_sync_instance_power_state_match(self):
instance = self._get_sync_instance(power_state.RUNNING,
vm_states.ACTIVE)
instance.refresh(use_slave=False)
self.mox.ReplayAll()
self.compute._sync_instance_power_state(self.context, instance,
power_state.RUNNING)
def test_sync_instance_power_state_running_stopped(self):
instance = self._get_sync_instance(power_state.RUNNING,
vm_states.ACTIVE)
instance.refresh(use_slave=False)
instance.save()
self.mox.ReplayAll()
self.compute._sync_instance_power_state(self.context, instance,
power_state.SHUTDOWN)
self.assertEqual(instance.power_state, power_state.SHUTDOWN)
def _test_sync_to_stop(self, power_state, vm_state, driver_power_state,
stop=True, force=False):
instance = self._get_sync_instance(power_state, vm_state)
instance.refresh(use_slave=False)
instance.save()
self.mox.StubOutWithMock(self.compute.compute_api, 'stop')
self.mox.StubOutWithMock(self.compute.compute_api, 'force_stop')
if stop:
if force:
self.compute.compute_api.force_stop(self.context, instance)
else:
self.compute.compute_api.stop(self.context, instance)
self.mox.ReplayAll()
self.compute._sync_instance_power_state(self.context, instance,
driver_power_state)
self.mox.VerifyAll()
self.mox.UnsetStubs()
def test_sync_instance_power_state_to_stop(self):
for ps in (power_state.SHUTDOWN, power_state.CRASHED,
power_state.SUSPENDED):
self._test_sync_to_stop(power_state.RUNNING, vm_states.ACTIVE, ps)
for ps in (power_state.SHUTDOWN, power_state.CRASHED):
self._test_sync_to_stop(power_state.PAUSED, vm_states.PAUSED, ps,
force=True)
self._test_sync_to_stop(power_state.SHUTDOWN, vm_states.STOPPED,
power_state.RUNNING, force=True)
def test_sync_instance_power_state_to_no_stop(self):
for ps in (power_state.PAUSED, power_state.NOSTATE):
self._test_sync_to_stop(power_state.RUNNING, vm_states.ACTIVE, ps,
stop=False)
for vs in (vm_states.SOFT_DELETED, vm_states.DELETED):
for ps in (power_state.NOSTATE, power_state.SHUTDOWN):
self._test_sync_to_stop(power_state.RUNNING, vs, ps,
stop=False)
def test_run_pending_deletes(self):
self.flags(instance_delete_interval=10)
class FakeInstance(object):
def __init__(self, uuid, name, smd):
self.uuid = uuid
self.name = name
self.system_metadata = smd
self.cleaned = False
def __getitem__(self, name):
return getattr(self, name)
def save(self, context):
pass
class FakeInstanceList(object):
def get_by_filters(self, *args, **kwargs):
return []
a = FakeInstance('123', 'apple', {'clean_attempts': '100'})
b = FakeInstance('456', 'orange', {'clean_attempts': '3'})
c = FakeInstance('789', 'banana', {})
self.mox.StubOutWithMock(instance_obj.InstanceList,
'get_by_filters')
instance_obj.InstanceList.get_by_filters(
{'read_deleted': 'yes'},
{'deleted': True, 'soft_deleted': False, 'host': 'fake-mini',
'cleaned': False},
expected_attrs=['info_cache', 'security_groups',
'system_metadata']).AndReturn([a, b, c])
self.mox.StubOutWithMock(self.compute.driver, 'delete_instance_files')
self.compute.driver.delete_instance_files(
mox.IgnoreArg()).AndReturn(True)
self.compute.driver.delete_instance_files(
mox.IgnoreArg()).AndReturn(False)
self.mox.ReplayAll()
self.compute._run_pending_deletes({})
self.assertFalse(a.cleaned)
self.assertEqual('100', a.system_metadata['clean_attempts'])
self.assertTrue(b.cleaned)
self.assertEqual('4', b.system_metadata['clean_attempts'])
self.assertFalse(c.cleaned)
self.assertEqual('1', c.system_metadata['clean_attempts'])
def test_swap_volume_volume_api_usage(self):
# This test ensures that volume_id arguments are passed to volume_api
# and that volume states are OK
volumes = {}
old_volume_id = uuidutils.generate_uuid()
volumes[old_volume_id] = {'id': old_volume_id,
'display_name': 'old_volume',
'status': 'detaching'}
new_volume_id = uuidutils.generate_uuid()
volumes[new_volume_id] = {'id': new_volume_id,
'display_name': 'new_volume',
'status': 'available'}
def fake_vol_api_begin_detaching(context, volume_id):
self.assertTrue(uuidutils.is_uuid_like(volume_id))
volumes[volume_id]['status'] = 'detaching'
def fake_vol_api_roll_detaching(context, volume_id):
self.assertTrue(uuidutils.is_uuid_like(volume_id))
if volumes[volume_id]['status'] == 'detaching':
volumes[volume_id]['status'] = 'in-use'
fake_bdm = fake_block_device.FakeDbBlockDeviceDict(
{'device_name': '/dev/vdb', 'source_type': 'volume',
'destination_type': 'volume', 'instance_uuid': 'fake',
'connection_info': '{"foo": "bar"}'})
def fake_vol_api_func(context, volume, *args):
self.assertTrue(uuidutils.is_uuid_like(volume))
return {}
def fake_vol_get(context, volume_id):
self.assertTrue(uuidutils.is_uuid_like(volume_id))
return volumes[volume_id]
def fake_vol_attach(context, volume_id, instance_uuid, connector):
self.assertTrue(uuidutils.is_uuid_like(volume_id))
self.assertIn(volumes[volume_id]['status'],
['available', 'attaching'])
volumes[volume_id]['status'] = 'in-use'
def fake_vol_api_reserve(context, volume_id):
self.assertTrue(uuidutils.is_uuid_like(volume_id))
self.assertEqual(volumes[volume_id]['status'], 'available')
volumes[volume_id]['status'] = 'attaching'
def fake_vol_unreserve(context, volume_id):
self.assertTrue(uuidutils.is_uuid_like(volume_id))
if volumes[volume_id]['status'] == 'attaching':
volumes[volume_id]['status'] = 'available'
def fake_vol_detach(context, volume_id):
self.assertTrue(uuidutils.is_uuid_like(volume_id))
volumes[volume_id]['status'] = 'available'
def fake_vol_migrate_volume_completion(context, old_volume_id,
new_volume_id, error=False):
self.assertTrue(uuidutils.is_uuid_like(old_volume_id))
self.assertTrue(uuidutils.is_uuid_like(old_volume_id))
return {'save_volume_id': new_volume_id}
def fake_func_exc(*args, **kwargs):
raise AttributeError # Random exception
self.stubs.Set(self.compute.volume_api, 'begin_detaching',
fake_vol_api_begin_detaching)
self.stubs.Set(self.compute.volume_api, 'roll_detaching',
fake_vol_api_roll_detaching)
self.stubs.Set(self.compute.volume_api, 'get', fake_vol_get)
self.stubs.Set(self.compute.volume_api, 'initialize_connection',
fake_vol_api_func)
self.stubs.Set(self.compute.volume_api, 'attach', fake_vol_attach)
self.stubs.Set(self.compute.volume_api, 'reserve_volume',
fake_vol_api_reserve)
self.stubs.Set(self.compute.volume_api, 'unreserve_volume',
fake_vol_unreserve)
self.stubs.Set(self.compute.volume_api, 'terminate_connection',
fake_vol_api_func)
self.stubs.Set(self.compute.volume_api, 'detach', fake_vol_detach)
self.stubs.Set(db, 'block_device_mapping_get_by_volume_id',
lambda x, y, z: fake_bdm)
self.stubs.Set(self.compute.driver, 'get_volume_connector',
lambda x: {})
self.stubs.Set(self.compute.driver, 'swap_volume',
lambda w, x, y, z: None)
self.stubs.Set(self.compute.volume_api, 'migrate_volume_completion',
fake_vol_migrate_volume_completion)
self.stubs.Set(db, 'block_device_mapping_update',
lambda *a, **k: fake_bdm)
self.stubs.Set(self.compute.conductor_api,
'instance_fault_create',
lambda x, y: None)
# Good path
self.compute.swap_volume(self.context, old_volume_id, new_volume_id,
fake_instance.fake_instance_obj(
self.context, **{'uuid': 'fake'}))
self.assertEqual(volumes[old_volume_id]['status'], 'available')
self.assertEqual(volumes[new_volume_id]['status'], 'in-use')
# Error paths
volumes[old_volume_id]['status'] = 'detaching'
volumes[new_volume_id]['status'] = 'attaching'
self.stubs.Set(self.compute.driver, 'swap_volume', fake_func_exc)
self.assertRaises(AttributeError, self.compute.swap_volume,
self.context, old_volume_id, new_volume_id,
fake_instance.fake_instance_obj(
self.context, **{'uuid': 'fake'}))
self.assertEqual(volumes[old_volume_id]['status'], 'in-use')
self.assertEqual(volumes[new_volume_id]['status'], 'available')
volumes[old_volume_id]['status'] = 'detaching'
volumes[new_volume_id]['status'] = 'attaching'
self.stubs.Set(self.compute.volume_api, 'initialize_connection',
fake_func_exc)
self.assertRaises(AttributeError, self.compute.swap_volume,
self.context, old_volume_id, new_volume_id,
fake_instance.fake_instance_obj(
self.context, **{'uuid': 'fake'}))
self.assertEqual(volumes[old_volume_id]['status'], 'in-use')
self.assertEqual(volumes[new_volume_id]['status'], 'available')
def test_check_can_live_migrate_source(self):
is_volume_backed = 'volume_backed'
bdms = 'bdms'
dest_check_data = dict(foo='bar')
db_instance = fake_instance.fake_db_instance()
instance = instance_obj.Instance._from_db_object(
self.context, instance_obj.Instance(), db_instance)
expected_dest_check_data = dict(dest_check_data,
is_volume_backed=is_volume_backed)
self.mox.StubOutWithMock(self.compute.compute_api,
'is_volume_backed_instance')
self.mox.StubOutWithMock(self.compute.driver,
'check_can_live_migrate_source')
instance_p = obj_base.obj_to_primitive(instance)
self.compute.compute_api.is_volume_backed_instance(
self.context, instance).AndReturn(is_volume_backed)
self.compute.driver.check_can_live_migrate_source(
self.context, instance, expected_dest_check_data)
self.mox.ReplayAll()
self.compute.check_can_live_migrate_source(
self.context, instance=instance,
dest_check_data=dest_check_data)
def _test_check_can_live_migrate_destination(self, do_raise=False,
has_mig_data=False):
db_instance = fake_instance.fake_db_instance(host='fake-host')
instance = instance_obj.Instance._from_db_object(
self.context, instance_obj.Instance(), db_instance)
instance.host = 'fake-host'
block_migration = 'block_migration'
disk_over_commit = 'disk_over_commit'
src_info = 'src_info'
dest_info = 'dest_info'
dest_check_data = dict(foo='bar')
mig_data = dict(cow='moo')
expected_result = dict(mig_data)
if has_mig_data:
dest_check_data['migrate_data'] = dict(cat='meow')
expected_result.update(cat='meow')
self.mox.StubOutWithMock(self.compute, '_get_compute_info')
self.mox.StubOutWithMock(self.compute.driver,
'check_can_live_migrate_destination')
self.mox.StubOutWithMock(self.compute.compute_rpcapi,
'check_can_live_migrate_source')
self.mox.StubOutWithMock(self.compute.driver,
'check_can_live_migrate_destination_cleanup')
self.compute._get_compute_info(self.context,
'fake-host').AndReturn(src_info)
self.compute._get_compute_info(self.context,
CONF.host).AndReturn(dest_info)
self.compute.driver.check_can_live_migrate_destination(
self.context, instance, src_info, dest_info,
block_migration, disk_over_commit).AndReturn(dest_check_data)
mock_meth = self.compute.compute_rpcapi.check_can_live_migrate_source(
self.context, instance, dest_check_data)
if do_raise:
mock_meth.AndRaise(test.TestingException())
self.mox.StubOutWithMock(self.compute.conductor_api,
'instance_fault_create')
self.compute.conductor_api.instance_fault_create(self.context,
mox.IgnoreArg())
else:
mock_meth.AndReturn(mig_data)
self.compute.driver.check_can_live_migrate_destination_cleanup(
self.context, dest_check_data)
self.mox.ReplayAll()
result = self.compute.check_can_live_migrate_destination(
self.context, instance=instance,
block_migration=block_migration,
disk_over_commit=disk_over_commit)
self.assertEqual(expected_result, result)
def test_check_can_live_migrate_destination_success(self):
self._test_check_can_live_migrate_destination()
def test_check_can_live_migrate_destination_success_w_mig_data(self):
self._test_check_can_live_migrate_destination(has_mig_data=True)
def test_check_can_live_migrate_destination_fail(self):
self.assertRaises(
test.TestingException,
self._test_check_can_live_migrate_destination,
do_raise=True)
def test_prepare_for_instance_event(self):
inst_obj = instance_obj.Instance(uuid='foo')
result = self.compute.instance_events.prepare_for_instance_event(
inst_obj, 'test-event')
self.assertIn('foo', self.compute.instance_events._events)
self.assertIn('test-event',
self.compute.instance_events._events['foo'])
self.assertEqual(
result,
self.compute.instance_events._events['foo']['test-event'])
self.assertTrue(hasattr(result, 'send'))
def test_prepare_for_instance_event_again(self):
inst_obj = instance_obj.Instance(uuid='foo')
self.compute.instance_events.prepare_for_instance_event(
inst_obj, 'test-event')
# A second attempt will avoid creating a new list; make sure we
# get the current list
result = self.compute.instance_events.prepare_for_instance_event(
inst_obj, 'test-event')
self.assertIn('foo', self.compute.instance_events._events)
self.assertIn('test-event',
self.compute.instance_events._events['foo'])
self.assertEqual(
result,
self.compute.instance_events._events['foo']['test-event'])
self.assertTrue(hasattr(result, 'send'))
def test_process_instance_event(self):
event = eventlet_event.Event()
self.compute.instance_events._events = {
'foo': {
'test-event': event,
}
}
inst_obj = instance_obj.Instance(uuid='foo')
event_obj = external_event_obj.InstanceExternalEvent(name='test-event',
tag=None)
self.compute._process_instance_event(inst_obj, event_obj)
self.assertTrue(event.ready())
self.assertEqual(event_obj, event.wait())
self.assertEqual({}, self.compute.instance_events._events)
def test_external_instance_event(self):
instances = [
instance_obj.Instance(uuid='uuid1'),
instance_obj.Instance(uuid='uuid2')]
events = [
external_event_obj.InstanceExternalEvent(name='network-changed',
instance_uuid='uuid1'),
external_event_obj.InstanceExternalEvent(name='foo',
instance_uuid='uuid2')]
@mock.patch.object(self.compute.network_api, 'get_instance_nw_info')
@mock.patch.object(self.compute, '_process_instance_event')
def do_test(_process_instance_event, get_instance_nw_info):
self.compute.external_instance_event(self.context,
instances, events)
get_instance_nw_info.assert_called_once_with(self.context,
instances[0])
_process_instance_event.assert_called_once_with(instances[1],
events[1])
do_test()
def test_retry_reboot_pending_soft(self):
instance = instance_obj.Instance(self.context)
instance.uuid = 'foo'
instance.task_state = task_states.REBOOT_PENDING
instance.vm_state = vm_states.ACTIVE
with mock.patch.object(self.compute, '_get_power_state',
return_value=power_state.RUNNING):
allow_reboot, reboot_type = self.compute._retry_reboot(
context, instance)
self.assertTrue(allow_reboot)
self.assertEqual(reboot_type, 'SOFT')
def test_retry_reboot_pending_hard(self):
instance = instance_obj.Instance(self.context)
instance.uuid = 'foo'
instance.task_state = task_states.REBOOT_PENDING_HARD
instance.vm_state = vm_states.ACTIVE
with mock.patch.object(self.compute, '_get_power_state',
return_value=power_state.RUNNING):
allow_reboot, reboot_type = self.compute._retry_reboot(
context, instance)
self.assertTrue(allow_reboot)
self.assertEqual(reboot_type, 'HARD')
def test_retry_reboot_starting_soft_off(self):
instance = instance_obj.Instance(self.context)
instance.uuid = 'foo'
instance.task_state = task_states.REBOOT_STARTED
with mock.patch.object(self.compute, '_get_power_state',
return_value=power_state.NOSTATE):
allow_reboot, reboot_type = self.compute._retry_reboot(
context, instance)
self.assertTrue(allow_reboot)
self.assertEqual(reboot_type, 'HARD')
def test_retry_reboot_starting_hard_off(self):
instance = instance_obj.Instance(self.context)
instance.uuid = 'foo'
instance.task_state = task_states.REBOOT_STARTED_HARD
with mock.patch.object(self.compute, '_get_power_state',
return_value=power_state.NOSTATE):
allow_reboot, reboot_type = self.compute._retry_reboot(
context, instance)
self.assertTrue(allow_reboot)
self.assertEqual(reboot_type, 'HARD')
def test_retry_reboot_starting_hard_on(self):
instance = instance_obj.Instance(self.context)
instance.uuid = 'foo'
instance.task_state = task_states.REBOOT_STARTED_HARD
with mock.patch.object(self.compute, '_get_power_state',
return_value=power_state.RUNNING):
allow_reboot, reboot_type = self.compute._retry_reboot(
context, instance)
self.assertFalse(allow_reboot)
self.assertEqual(reboot_type, 'HARD')
def test_retry_reboot_no_reboot(self):
instance = instance_obj.Instance(self.context)
instance.uuid = 'foo'
instance.task_state = 'bar'
with mock.patch.object(self.compute, '_get_power_state',
return_value=power_state.RUNNING):
allow_reboot, reboot_type = self.compute._retry_reboot(
context, instance)
self.assertFalse(allow_reboot)
self.assertEqual(reboot_type, 'HARD')
@mock.patch('nova.objects.block_device.BlockDeviceMapping.'
'get_by_volume_id')
@mock.patch('nova.compute.manager.ComputeManager._detach_volume')
@mock.patch('nova.objects.instance.Instance._from_db_object')
def test_remove_volume_connection(self, inst_from_db, detach, bdm_get):
bdm = mock.sentinel.bdm
inst_obj = mock.sentinel.inst_obj
bdm_get.return_value = bdm
inst_from_db.return_value = inst_obj
with mock.patch.object(self.compute, 'volume_api'):
self.compute.remove_volume_connection(self.context, 'vol',
{'uuid': 'fake-inst'})
detach.assert_called_once_with(self.context, inst_obj, bdm)
class ComputeManagerBuildInstanceTestCase(test.NoDBTestCase):
def setUp(self):
super(ComputeManagerBuildInstanceTestCase, self).setUp()
self.compute = importutils.import_object(CONF.compute_manager)
self.context = context.RequestContext('fake', 'fake')
self.instance = fake_instance.fake_instance_obj(self.context,
vm_state=vm_states.ACTIVE,
expected_attrs=['metadata', 'system_metadata', 'info_cache'])
self.admin_pass = 'pass'
self.injected_files = []
self.image = {}
self.node = 'fake-node'
self.limits = {}
self.requested_networks = []
self.security_groups = []
self.block_device_mapping = []
def fake_network_info():
return network_model.NetworkInfo()
self.network_info = network_model.NetworkInfoAsyncWrapper(
fake_network_info)
self.block_device_info = self.compute._prep_block_device(context,
self.instance, self.block_device_mapping)
# override tracker with a version that doesn't need the database:
fake_rt = fake_resource_tracker.FakeResourceTracker(self.compute.host,
self.compute.driver, self.node)
self.compute._resource_tracker_dict[self.node] = fake_rt
def _do_build_instance_update(self, reschedule_update=False):
self.mox.StubOutWithMock(self.instance, 'save')
self.instance.save(
expected_task_state=(task_states.SCHEDULING, None)).AndReturn(
self.instance)
if reschedule_update:
self.instance.save().AndReturn(self.instance)
def _build_and_run_instance_update(self):
self.mox.StubOutWithMock(self.instance, 'save')
self._build_resources_instance_update(stub=False)
self.instance.save(expected_task_state=
task_states.BLOCK_DEVICE_MAPPING).AndReturn(self.instance)
def _build_resources_instance_update(self, stub=True):
if stub:
self.mox.StubOutWithMock(self.instance, 'save')
self.instance.save().AndReturn(self.instance)
def _notify_about_instance_usage(self, event, stub=True, **kwargs):
if stub:
self.mox.StubOutWithMock(self.compute,
'_notify_about_instance_usage')
self.compute._notify_about_instance_usage(self.context, self.instance,
event, **kwargs)
def test_build_and_run_instance_called_with_proper_args(self):
self.mox.StubOutWithMock(self.compute, '_build_and_run_instance')
self.mox.StubOutWithMock(self.compute.conductor_api,
'action_event_start')
self.mox.StubOutWithMock(self.compute.conductor_api,
'action_event_finish')
self._do_build_instance_update()
self.compute._build_and_run_instance(self.context, self.instance,
self.image, self.injected_files, self.admin_pass,
self.requested_networks, self.security_groups,
self.block_device_mapping, self.node, self.limits)
self.compute.conductor_api.action_event_start(self.context,
mox.IgnoreArg())
self.compute.conductor_api.action_event_finish(self.context,
mox.IgnoreArg())
self.mox.ReplayAll()
self.compute.build_and_run_instance(self.context, self.instance,
self.image, request_spec={}, filter_properties=[],
injected_files=self.injected_files,
admin_password=self.admin_pass,
requested_networks=self.requested_networks,
security_groups=self.security_groups,
block_device_mapping=self.block_device_mapping, node=self.node,
limits=self.limits)
def test_build_abort_exception(self):
self.mox.StubOutWithMock(self.compute, '_build_and_run_instance')
self.mox.StubOutWithMock(self.compute, '_cleanup_allocated_networks')
self.mox.StubOutWithMock(self.compute, '_set_instance_error_state')
self.mox.StubOutWithMock(self.compute.compute_task_api,
'build_instances')
self.mox.StubOutWithMock(self.compute.conductor_api,
'action_event_start')
self.mox.StubOutWithMock(self.compute.conductor_api,
'action_event_finish')
self._do_build_instance_update()
self.compute._build_and_run_instance(self.context, self.instance,
self.image, self.injected_files, self.admin_pass,
self.requested_networks, self.security_groups,
self.block_device_mapping, self.node, self.limits).AndRaise(
exception.BuildAbortException(reason='',
instance_uuid=self.instance['uuid']))
self.compute._cleanup_allocated_networks(self.context, self.instance,
self.requested_networks)
self.compute._set_instance_error_state(self.context,
self.instance['uuid'])
self.compute.conductor_api.action_event_start(self.context,
mox.IgnoreArg())
self.compute.conductor_api.action_event_finish(self.context,
mox.IgnoreArg())
self.mox.ReplayAll()
self.compute.build_and_run_instance(self.context, self.instance,
self.image, request_spec={}, filter_properties=[],
injected_files=self.injected_files,
admin_password=self.admin_pass,
requested_networks=self.requested_networks,
security_groups=self.security_groups,
block_device_mapping=self.block_device_mapping, node=self.node,
limits=self.limits)
def test_rescheduled_exception(self):
self.mox.StubOutWithMock(self.compute, '_build_and_run_instance')
self.mox.StubOutWithMock(self.compute, '_set_instance_error_state')
self.mox.StubOutWithMock(self.compute.compute_task_api,
'build_instances')
self.mox.StubOutWithMock(self.compute.conductor_api,
'action_event_start')
self.mox.StubOutWithMock(self.compute.conductor_api,
'action_event_finish')
self._do_build_instance_update(reschedule_update=True)
self.compute._build_and_run_instance(self.context, self.instance,
self.image, self.injected_files, self.admin_pass,
self.requested_networks, self.security_groups,
self.block_device_mapping, self.node, self.limits).AndRaise(
exception.RescheduledException(reason='',
instance_uuid=self.instance['uuid']))
self.compute.compute_task_api.build_instances(self.context,
[self.instance], self.image, [], self.admin_pass,
self.injected_files, self.requested_networks,
self.security_groups, self.block_device_mapping)
self.compute.conductor_api.action_event_start(self.context,
mox.IgnoreArg())
self.compute.conductor_api.action_event_finish(self.context,
mox.IgnoreArg())
self.mox.ReplayAll()
self.compute.build_and_run_instance(self.context, self.instance,
self.image, request_spec={}, filter_properties=[],
injected_files=self.injected_files,
admin_password=self.admin_pass,
requested_networks=self.requested_networks,
security_groups=self.security_groups,
block_device_mapping=self.block_device_mapping, node=self.node,
limits=self.limits)
def test_rescheduled_exception_do_not_deallocate_network(self):
self.mox.StubOutWithMock(self.compute, '_build_and_run_instance')
self.mox.StubOutWithMock(self.compute, '_cleanup_allocated_networks')
self.mox.StubOutWithMock(self.compute.compute_task_api,
'build_instances')
self.mox.StubOutWithMock(self.compute.conductor_api,
'action_event_start')
self.mox.StubOutWithMock(self.compute.conductor_api,
'action_event_finish')
self._do_build_instance_update(reschedule_update=True)
self.compute._build_and_run_instance(self.context, self.instance,
self.image, self.injected_files, self.admin_pass,
self.requested_networks, self.security_groups,
self.block_device_mapping, self.node, self.limits).AndRaise(
exception.RescheduledException(reason='',
instance_uuid=self.instance['uuid']))
self.compute.compute_task_api.build_instances(self.context,
[self.instance], self.image, [], self.admin_pass,
self.injected_files, self.requested_networks,
self.security_groups, self.block_device_mapping)
self.compute.conductor_api.action_event_start(self.context,
mox.IgnoreArg())
self.compute.conductor_api.action_event_finish(self.context,
mox.IgnoreArg())
self.mox.ReplayAll()
self.compute.build_and_run_instance(self.context, self.instance,
self.image, request_spec={}, filter_properties=[],
injected_files=self.injected_files,
admin_password=self.admin_pass,
requested_networks=self.requested_networks,
security_groups=self.security_groups,
block_device_mapping=self.block_device_mapping, node=self.node,
limits=self.limits)
def test_rescheduled_exception_deallocate_network_if_dhcp(self):
self.mox.StubOutWithMock(self.compute, '_build_and_run_instance')
self.mox.StubOutWithMock(self.compute.driver,
'dhcp_options_for_instance')
self.mox.StubOutWithMock(self.compute, '_cleanup_allocated_networks')
self.mox.StubOutWithMock(self.compute.compute_task_api,
'build_instances')
self.mox.StubOutWithMock(self.compute.conductor_api,
'action_event_start')
self.mox.StubOutWithMock(self.compute.conductor_api,
'action_event_finish')
self._do_build_instance_update(reschedule_update=True)
self.compute._build_and_run_instance(self.context, self.instance,
self.image, self.injected_files, self.admin_pass,
self.requested_networks, self.security_groups,
self.block_device_mapping, self.node, self.limits).AndRaise(
exception.RescheduledException(reason='',
instance_uuid=self.instance['uuid']))
self.compute.driver.dhcp_options_for_instance(self.instance).AndReturn(
{'fake': 'options'})
self.compute._cleanup_allocated_networks(self.context, self.instance,
self.requested_networks)
self.compute.compute_task_api.build_instances(self.context,
[self.instance], self.image, [], self.admin_pass,
self.injected_files, self.requested_networks,
self.security_groups, self.block_device_mapping)
self.compute.conductor_api.action_event_start(self.context,
mox.IgnoreArg())
self.compute.conductor_api.action_event_finish(self.context,
mox.IgnoreArg())
self.mox.ReplayAll()
self.compute.build_and_run_instance(self.context, self.instance,
self.image, request_spec={}, filter_properties=[],
injected_files=self.injected_files,
admin_password=self.admin_pass,
requested_networks=self.requested_networks,
security_groups=self.security_groups,
block_device_mapping=self.block_device_mapping, node=self.node,
limits=self.limits)
def test_unexpected_exception(self):
self.mox.StubOutWithMock(self.compute, '_build_and_run_instance')
self.mox.StubOutWithMock(self.compute, '_cleanup_allocated_networks')
self.mox.StubOutWithMock(self.compute, '_set_instance_error_state')
self.mox.StubOutWithMock(self.compute.compute_task_api,
'build_instances')
self.mox.StubOutWithMock(self.compute.conductor_api,
'action_event_start')
self.mox.StubOutWithMock(self.compute.conductor_api,
'action_event_finish')
self._do_build_instance_update()
self.compute._build_and_run_instance(self.context, self.instance,
self.image, self.injected_files, self.admin_pass,
self.requested_networks, self.security_groups,
self.block_device_mapping, self.node, self.limits).AndRaise(
test.TestingException())
self.compute._cleanup_allocated_networks(self.context, self.instance,
self.requested_networks)
self.compute._set_instance_error_state(self.context,
self.instance['uuid'])
self.compute.conductor_api.action_event_start(self.context,
mox.IgnoreArg())
self.compute.conductor_api.action_event_finish(self.context,
mox.IgnoreArg())
self.mox.ReplayAll()
self.compute.build_and_run_instance(self.context, self.instance,
self.image, request_spec={}, filter_properties=[],
injected_files=self.injected_files,
admin_password=self.admin_pass,
requested_networks=self.requested_networks,
security_groups=self.security_groups,
block_device_mapping=self.block_device_mapping, node=self.node,
limits=self.limits)
def test_instance_not_found(self):
exc = exception.InstanceNotFound(instance_id=1)
self.mox.StubOutWithMock(self.compute.driver, 'spawn')
self.mox.StubOutWithMock(conductor_rpcapi.ConductorAPI,
'instance_update')
self.mox.StubOutWithMock(self.compute, '_build_networks_for_instance')
self.compute._build_networks_for_instance(self.context, self.instance,
self.requested_networks, self.security_groups).AndReturn(
self.network_info)
self._notify_about_instance_usage('create.start',
extra_usage_info={'image_name': self.image.get('name')})
self._build_and_run_instance_update()
self.compute.driver.spawn(self.context, self.instance, self.image,
self.injected_files, self.admin_pass,
network_info=self.network_info,
block_device_info=self.block_device_info).AndRaise(exc)
self._notify_about_instance_usage('create.end',
fault=exc, stub=False)
conductor_rpcapi.ConductorAPI.instance_update(
self.context, self.instance['uuid'], mox.IgnoreArg(), 'conductor')
self.mox.ReplayAll()
self.assertRaises(exception.InstanceNotFound,
self.compute._build_and_run_instance, self.context,
self.instance, self.image, self.injected_files,
self.admin_pass, self.requested_networks, self.security_groups,
self.block_device_mapping, self.node,
self.limits)
def test_reschedule_on_exception(self):
self.mox.StubOutWithMock(self.compute.driver, 'spawn')
self.mox.StubOutWithMock(conductor_rpcapi.ConductorAPI,
'instance_update')
self.mox.StubOutWithMock(self.compute, '_build_networks_for_instance')
self.compute._build_networks_for_instance(self.context, self.instance,
self.requested_networks, self.security_groups).AndReturn(
self.network_info)
self._notify_about_instance_usage('create.start',
extra_usage_info={'image_name': self.image.get('name')})
self._build_and_run_instance_update()
exc = test.TestingException()
self.compute.driver.spawn(self.context, self.instance, self.image,
self.injected_files, self.admin_pass,
network_info=self.network_info,
block_device_info=self.block_device_info).AndRaise(exc)
conductor_rpcapi.ConductorAPI.instance_update(
self.context, self.instance['uuid'], mox.IgnoreArg(), 'conductor')
self._notify_about_instance_usage('create.error',
fault=exc, stub=False)
self.mox.ReplayAll()
self.assertRaises(exception.RescheduledException,
self.compute._build_and_run_instance, self.context,
self.instance, self.image, self.injected_files,
self.admin_pass, self.requested_networks, self.security_groups,
self.block_device_mapping, self.node,
self.limits)
def test_spawn_network_alloc_failure(self):
# Because network allocation is asynchronous, failures may not present
# themselves until the virt spawn method is called.
exc = exception.NoMoreNetworks()
with contextlib.nested(
mock.patch.object(self.compute.driver, 'spawn',
side_effect=exc),
mock.patch.object(conductor_rpcapi.ConductorAPI,
'instance_update'),
mock.patch.object(self.instance, 'save',
side_effect=[self.instance, self.instance]),
mock.patch.object(self.compute,
'_build_networks_for_instance',
return_value=self.network_info),
mock.patch.object(self.compute,
'_notify_about_instance_usage')
) as (spawn, instance_update, save,
_build_networks_for_instance, _notify_about_instance_usage):
self.assertRaises(exception.BuildAbortException,
self.compute._build_and_run_instance, self.context,
self.instance, self.image, self.injected_files,
self.admin_pass, self.requested_networks,
self.security_groups, self.block_device_mapping, self.node,
self.limits)
_build_networks_for_instance.assert_has_calls(
mock.call(self.context, self.instance,
self.requested_networks, self.security_groups))
_notify_about_instance_usage.assert_has_calls([
mock.call(self.context, self.instance, 'create.start',
extra_usage_info={'image_name': self.image.get('name')}),
mock.call(self.context, self.instance, 'create.error',
fault=exc)])
save.assert_has_calls([
mock.call(),
mock.call(
expected_task_state=task_states.BLOCK_DEVICE_MAPPING)])
spawn.assert_has_calls(mock.call(self.context, self.instance,
self.image, self.injected_files, self.admin_pass,
network_info=self.network_info,
block_device_info=self.block_device_info))
instance_update.assert_has_calls(mock.call(self.context,
self.instance['uuid'], mock.ANY, 'conductor'))
@mock.patch('nova.compute.manager.ComputeManager._get_power_state')
def test_spawn_waits_for_network_and_saves_info_cache(self, gps):
inst = mock.MagicMock()
network_info = mock.MagicMock()
with mock.patch.object(self.compute, 'driver'):
self.compute._spawn(self.context, inst, {}, network_info, None,
None, None)
network_info.wait.assert_called_once_with(do_raise=True)
self.assertEqual(network_info, inst.info_cache.network_info)
inst.save.assert_called_with(expected_task_state=task_states.SPAWNING)
def test_reschedule_on_resources_unavailable(self):
reason = 'resource unavailable'
exc = exception.ComputeResourcesUnavailable(reason=reason)
class FakeResourceTracker(object):
def instance_claim(self, context, instance, limits):
raise exc
self.mox.StubOutWithMock(self.compute, '_get_resource_tracker')
self.mox.StubOutWithMock(self.compute.compute_task_api,
'build_instances')
self.mox.StubOutWithMock(self.compute.conductor_api,
'action_event_start')
self.mox.StubOutWithMock(self.compute.conductor_api,
'action_event_finish')
self.compute._get_resource_tracker(self.node).AndReturn(
FakeResourceTracker())
self._do_build_instance_update(reschedule_update=True)
self._notify_about_instance_usage('create.start',
extra_usage_info={'image_name': self.image.get('name')})
self._notify_about_instance_usage('create.error',
fault=exc, stub=False)
self.compute.compute_task_api.build_instances(self.context,
[self.instance], self.image, [], self.admin_pass,
self.injected_files, self.requested_networks,
self.security_groups, self.block_device_mapping)
self.compute.conductor_api.action_event_start(self.context,
mox.IgnoreArg())
self.compute.conductor_api.action_event_finish(self.context,
mox.IgnoreArg())
self.mox.ReplayAll()
self.compute.build_and_run_instance(self.context, self.instance,
self.image, request_spec={}, filter_properties=[],
injected_files=self.injected_files,
admin_password=self.admin_pass,
requested_networks=self.requested_networks,
security_groups=self.security_groups,
block_device_mapping=self.block_device_mapping, node=self.node,
limits=self.limits)
def test_build_resources_buildabort_reraise(self):
exc = exception.BuildAbortException(
instance_uuid=self.instance['uuid'], reason='')
self.mox.StubOutWithMock(self.compute, '_build_resources')
self.mox.StubOutWithMock(conductor_rpcapi.ConductorAPI,
'instance_update')
conductor_rpcapi.ConductorAPI.instance_update(
self.context, self.instance['uuid'], mox.IgnoreArg(), 'conductor')
self._notify_about_instance_usage('create.start',
extra_usage_info={'image_name': self.image.get('name')})
self.compute._build_resources(self.context, self.instance,
self.requested_networks, self.security_groups, self.image,
self.block_device_mapping).AndRaise(exc)
self._notify_about_instance_usage('create.error',
fault=exc, stub=False)
self.mox.ReplayAll()
self.assertRaises(exception.BuildAbortException,
self.compute._build_and_run_instance, self.context,
self.instance, self.image, self.injected_files,
self.admin_pass, self.requested_networks,
self.security_groups, self.block_device_mapping, self.node,
self.limits)
def test_build_resources_reraises_on_failed_bdm_prep(self):
self.mox.StubOutWithMock(self.compute, '_prep_block_device')
self.mox.StubOutWithMock(self.compute, '_build_networks_for_instance')
self.compute._build_networks_for_instance(self.context, self.instance,
self.requested_networks, self.security_groups).AndReturn(
self.network_info)
self._build_resources_instance_update()
self.compute._prep_block_device(self.context, self.instance,
self.block_device_mapping).AndRaise(test.TestingException())
self.mox.ReplayAll()
try:
with self.compute._build_resources(self.context, self.instance,
self.requested_networks, self.security_groups,
self.image, self.block_device_mapping):
pass
except Exception as e:
self.assertIsInstance(e, exception.BuildAbortException)
def test_failed_bdm_prep_from_delete_raises_unexpected(self):
with contextlib.nested(
mock.patch.object(self.compute,
'_build_networks_for_instance',
return_value=self.network_info),
mock.patch.object(self.instance, 'save',
side_effect=exception.UnexpectedDeletingTaskStateError(
actual=task_states.DELETING, expected='None')),
) as (_build_networks_for_instance, save):
try:
with self.compute._build_resources(self.context, self.instance,
self.requested_networks, self.security_groups,
self.image, self.block_device_mapping):
pass
except Exception as e:
self.assertIsInstance(e,
exception.UnexpectedDeletingTaskStateError)
_build_networks_for_instance.assert_has_calls(
mock.call(self.context, self.instance,
self.requested_networks, self.security_groups))
save.assert_has_calls(mock.call())
def test_build_resources_aborts_on_failed_network_alloc(self):
self.mox.StubOutWithMock(self.compute, '_build_networks_for_instance')
self.compute._build_networks_for_instance(self.context, self.instance,
self.requested_networks, self.security_groups).AndRaise(
test.TestingException())
self.mox.ReplayAll()
try:
with self.compute._build_resources(self.context, self.instance,
self.requested_networks, self.security_groups, self.image,
self.block_device_mapping):
pass
except Exception as e:
self.assertIsInstance(e, exception.BuildAbortException)
def test_failed_network_alloc_from_delete_raises_unexpected(self):
with mock.patch.object(self.compute,
'_build_networks_for_instance') as _build_networks:
exc = exception.UnexpectedDeletingTaskStateError
_build_networks.side_effect = exc(actual=task_states.DELETING,
expected='None')
try:
with self.compute._build_resources(self.context, self.instance,
self.requested_networks, self.security_groups,
self.image, self.block_device_mapping):
pass
except Exception as e:
self.assertIsInstance(e, exc)
_build_networks.assert_has_calls(
mock.call(self.context, self.instance,
self.requested_networks, self.security_groups))
def test_build_resources_cleans_up_and_reraises_on_spawn_failure(self):
self.mox.StubOutWithMock(self.compute, '_cleanup_build_resources')
self.mox.StubOutWithMock(self.compute, '_build_networks_for_instance')
self.compute._build_networks_for_instance(self.context, self.instance,
self.requested_networks, self.security_groups).AndReturn(
self.network_info)
self._build_resources_instance_update()
self.compute._cleanup_build_resources(self.context, self.instance,
self.block_device_mapping)
self.mox.ReplayAll()
test_exception = test.TestingException()
def fake_spawn():
raise test_exception
try:
with self.compute._build_resources(self.context, self.instance,
self.requested_networks, self.security_groups,
self.image, self.block_device_mapping):
fake_spawn()
except Exception as e:
self.assertEqual(test_exception, e)
def test_build_resources_aborts_on_cleanup_failure(self):
self.mox.StubOutWithMock(self.compute, '_cleanup_build_resources')
self.mox.StubOutWithMock(self.compute, '_build_networks_for_instance')
self.compute._build_networks_for_instance(self.context, self.instance,
self.requested_networks, self.security_groups).AndReturn(
self.network_info)
self._build_resources_instance_update()
self.compute._cleanup_build_resources(self.context, self.instance,
self.block_device_mapping).AndRaise(test.TestingException())
self.mox.ReplayAll()
def fake_spawn():
raise test.TestingException()
try:
with self.compute._build_resources(self.context, self.instance,
self.requested_networks, self.security_groups,
self.image, self.block_device_mapping):
fake_spawn()
except Exception as e:
self.assertIsInstance(e, exception.BuildAbortException)
def test_cleanup_cleans_volumes(self):
self.mox.StubOutWithMock(self.compute, '_cleanup_volumes')
self.compute._cleanup_volumes(self.context, self.instance['uuid'],
self.block_device_mapping)
self.mox.ReplayAll()
self.compute._cleanup_build_resources(self.context, self.instance,
self.block_device_mapping)
def test_cleanup_reraises_volume_cleanup_failure(self):
self.mox.StubOutWithMock(self.compute, '_cleanup_volumes')
self.compute._cleanup_volumes(self.context, self.instance['uuid'],
self.block_device_mapping).AndRaise(test.TestingException())
self.mox.ReplayAll()
self.assertRaises(test.TestingException,
self.compute._cleanup_build_resources, self.context,
self.instance, self.block_device_mapping)
def test_build_networks_if_not_allocated(self):
instance = fake_instance.fake_instance_obj(self.context,
system_metadata={},
expected_attrs=['system_metadata'])
self.mox.StubOutWithMock(self.compute, '_get_instance_nw_info')
self.mox.StubOutWithMock(self.compute, '_allocate_network')
self.compute._allocate_network(self.context, instance,
self.requested_networks, None, self.security_groups, None)
self.mox.ReplayAll()
self.compute._build_networks_for_instance(self.context, instance,
self.requested_networks, self.security_groups)
def test_build_networks_if_allocated_false(self):
instance = fake_instance.fake_instance_obj(self.context,
system_metadata=dict(network_allocated='False'),
expected_attrs=['system_metadata'])
self.mox.StubOutWithMock(self.compute, '_get_instance_nw_info')
self.mox.StubOutWithMock(self.compute, '_allocate_network')
self.compute._allocate_network(self.context, instance,
self.requested_networks, None, self.security_groups, None)
self.mox.ReplayAll()
self.compute._build_networks_for_instance(self.context, instance,
self.requested_networks, self.security_groups)
def test_return_networks_if_found(self):
instance = fake_instance.fake_instance_obj(self.context,
system_metadata=dict(network_allocated='True'),
expected_attrs=['system_metadata'])
def fake_network_info():
return network_model.NetworkInfo([{'address': '123.123.123.123'}])
self.mox.StubOutWithMock(self.compute, '_get_instance_nw_info')
self.mox.StubOutWithMock(self.compute, '_allocate_network')
self.compute._get_instance_nw_info(self.context, instance).AndReturn(
network_model.NetworkInfoAsyncWrapper(fake_network_info))
self.mox.ReplayAll()
self.compute._build_networks_for_instance(self.context, instance,
self.requested_networks, self.security_groups)
class ComputeManagerMigrationTestCase(test.NoDBTestCase):
def setUp(self):
super(ComputeManagerMigrationTestCase, self).setUp()
self.compute = importutils.import_object(CONF.compute_manager)
self.context = context.RequestContext('fake', 'fake')
self.image = {}
self.instance = fake_instance.fake_instance_obj(self.context,
vm_state=vm_states.ACTIVE,
expected_attrs=['metadata', 'system_metadata', 'info_cache'])
self.migration = migration_obj.Migration()
self.migration.status = 'migrating'
def test_finish_resize_failure(self):
elevated_context = self.context.elevated()
with contextlib.nested(
mock.patch.object(self.compute, '_finish_resize',
side_effect=exception.ResizeError(reason='')),
mock.patch.object(self.compute.conductor_api,
'action_event_start'),
mock.patch.object(self.compute.conductor_api,
'action_event_finish'),
mock.patch.object(self.compute.conductor_api,
'instance_fault_create'),
mock.patch.object(self.compute, '_instance_update'),
mock.patch.object(self.migration, 'save'),
mock.patch.object(self.context, 'elevated',
return_value=elevated_context)
) as (meth, event_start, event_finish, fault_create, instance_update,
migration_save, context_elevated):
self.assertRaises(
exception.ResizeError, self.compute.finish_resize,
context=self.context, disk_info=[], image=self.image,
instance=self.instance, reservations=[],
migration=self.migration
)
self.assertEqual("error", self.migration.status)
migration_save.assert_has_calls([mock.call(elevated_context)])
def test_resize_instance_failure(self):
elevated_context = self.context.elevated()
self.migration.dest_host = None
with contextlib.nested(
mock.patch.object(self.compute.driver,
'migrate_disk_and_power_off',
side_effect=exception.ResizeError(reason='')),
mock.patch.object(self.compute.conductor_api,
'action_event_start'),
mock.patch.object(self.compute.conductor_api,
'action_event_finish'),
mock.patch.object(self.compute.conductor_api,
'instance_fault_create'),
mock.patch.object(self.compute, '_instance_update'),
mock.patch.object(self.migration, 'save'),
mock.patch.object(self.context, 'elevated',
return_value=elevated_context),
mock.patch.object(self.compute, '_get_instance_nw_info',
return_value=None),
mock.patch.object(self.instance, 'save'),
mock.patch.object(self.compute, '_notify_about_instance_usage'),
mock.patch.object(self.compute,
'_get_instance_volume_block_device_info',
return_value=None),
mock.patch.object(block_device_obj.BlockDeviceMappingList,
'get_by_instance_uuid',
return_value=None)
) as (meth, event_start, event_finish, fault_create, instance_update,
migration_save, context_elevated, nw_info, save_inst, notify,
vol_block_info, bdm):
self.assertRaises(
exception.ResizeError, self.compute.resize_instance,
context=self.context, instance=self.instance, image=self.image,
reservations=[], migration=self.migration, instance_type='type'
)
self.assertEqual("error", self.migration.status)
migration_save.assert_has_calls([mock.call(elevated_context)])