345 lines
14 KiB
Python
345 lines
14 KiB
Python
# Copyright (c) 2012 Rackspace Hosting
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""
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Tests For Compute w/ Cells
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"""
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import functools
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import inspect
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import mock
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from oslo.config import cfg
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from nova import block_device
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from nova.cells import manager
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from nova.compute import api as compute_api
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from nova.compute import cells_api as compute_cells_api
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from nova.compute import flavors
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from nova.compute import vm_states
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from nova import context
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from nova import db
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from nova import objects
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from nova.openstack.common import timeutils
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from nova import quota
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from nova import test
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from nova.tests.compute import test_compute
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from nova.tests import fake_instance
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ORIG_COMPUTE_API = None
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cfg.CONF.import_opt('enable', 'nova.cells.opts', group='cells')
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def stub_call_to_cells(context, instance, method, *args, **kwargs):
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fn = getattr(ORIG_COMPUTE_API, method)
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original_instance = kwargs.pop('original_instance', None)
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if original_instance:
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instance = original_instance
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# Restore this in 'child cell DB'
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db.instance_update(context, instance['uuid'],
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dict(vm_state=instance['vm_state'],
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task_state=instance['task_state']))
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# Use NoopQuotaDriver in child cells.
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saved_quotas = quota.QUOTAS
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quota.QUOTAS = quota.QuotaEngine(
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quota_driver_class=quota.NoopQuotaDriver())
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compute_api.QUOTAS = quota.QUOTAS
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try:
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return fn(context, instance, *args, **kwargs)
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finally:
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quota.QUOTAS = saved_quotas
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compute_api.QUOTAS = saved_quotas
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def stub_cast_to_cells(context, instance, method, *args, **kwargs):
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fn = getattr(ORIG_COMPUTE_API, method)
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original_instance = kwargs.pop('original_instance', None)
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if original_instance:
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instance = original_instance
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# Restore this in 'child cell DB'
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db.instance_update(context, instance['uuid'],
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dict(vm_state=instance['vm_state'],
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task_state=instance['task_state']))
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# Use NoopQuotaDriver in child cells.
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saved_quotas = quota.QUOTAS
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quota.QUOTAS = quota.QuotaEngine(
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quota_driver_class=quota.NoopQuotaDriver())
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compute_api.QUOTAS = quota.QUOTAS
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try:
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fn(context, instance, *args, **kwargs)
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finally:
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quota.QUOTAS = saved_quotas
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compute_api.QUOTAS = saved_quotas
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def deploy_stubs(stubs, api, original_instance=None):
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call = stub_call_to_cells
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cast = stub_cast_to_cells
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if original_instance:
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kwargs = dict(original_instance=original_instance)
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call = functools.partial(stub_call_to_cells, **kwargs)
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cast = functools.partial(stub_cast_to_cells, **kwargs)
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stubs.Set(api, '_call_to_cells', call)
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stubs.Set(api, '_cast_to_cells', cast)
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class CellsComputeAPITestCase(test_compute.ComputeAPITestCase):
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def setUp(self):
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super(CellsComputeAPITestCase, self).setUp()
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global ORIG_COMPUTE_API
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ORIG_COMPUTE_API = self.compute_api
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self.flags(enable=True, group='cells')
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def _fake_cell_read_only(*args, **kwargs):
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return False
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def _fake_validate_cell(*args, **kwargs):
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return
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def _nop_update(context, instance, **kwargs):
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return instance
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self.compute_api = compute_cells_api.ComputeCellsAPI()
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self.stubs.Set(self.compute_api, '_cell_read_only',
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_fake_cell_read_only)
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self.stubs.Set(self.compute_api, '_validate_cell',
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_fake_validate_cell)
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# NOTE(belliott) Don't update the instance state
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# for the tests at the API layer. Let it happen after
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# the stub cast to cells so that expected_task_states
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# match.
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self.stubs.Set(self.compute_api, 'update', _nop_update)
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deploy_stubs(self.stubs, self.compute_api)
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def tearDown(self):
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global ORIG_COMPUTE_API
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self.compute_api = ORIG_COMPUTE_API
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super(CellsComputeAPITestCase, self).tearDown()
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def test_instance_metadata(self):
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self.skipTest("Test is incompatible with cells.")
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def test_evacuate(self):
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self.skipTest("Test is incompatible with cells.")
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def test_error_evacuate(self):
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self.skipTest("Test is incompatible with cells.")
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def test_delete_instance_no_cell(self):
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cells_rpcapi = self.compute_api.cells_rpcapi
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self.mox.StubOutWithMock(cells_rpcapi,
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'instance_delete_everywhere')
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inst = self._create_fake_instance_obj()
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cells_rpcapi.instance_delete_everywhere(self.context,
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inst, 'hard')
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self.mox.ReplayAll()
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self.stubs.Set(self.compute_api.network_api, 'deallocate_for_instance',
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lambda *a, **kw: None)
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self.compute_api.delete(self.context, inst)
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def test_soft_delete_instance_no_cell(self):
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cells_rpcapi = self.compute_api.cells_rpcapi
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self.mox.StubOutWithMock(cells_rpcapi,
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'instance_delete_everywhere')
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inst = self._create_fake_instance_obj()
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cells_rpcapi.instance_delete_everywhere(self.context,
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inst, 'soft')
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self.mox.ReplayAll()
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self.stubs.Set(self.compute_api.network_api, 'deallocate_for_instance',
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lambda *a, **kw: None)
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self.compute_api.soft_delete(self.context, inst)
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def test_get_migrations(self):
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filters = {'cell_name': 'ChildCell', 'status': 'confirmed'}
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migrations = {'migrations': [{'id': 1234}]}
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cells_rpcapi = self.compute_api.cells_rpcapi
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self.mox.StubOutWithMock(cells_rpcapi, 'get_migrations')
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cells_rpcapi.get_migrations(self.context,
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filters).AndReturn(migrations)
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self.mox.ReplayAll()
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response = self.compute_api.get_migrations(self.context, filters)
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self.assertEqual(migrations, response)
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def test_update_block_device_mapping(self):
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instance_type = {'swap': 1, 'ephemeral_gb': 1}
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instance = self._create_fake_instance_obj()
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bdms = [block_device.BlockDeviceDict({'source_type': 'image',
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'destination_type': 'local',
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'image_id': 'fake-image',
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'boot_index': 0})]
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self.compute_api._update_block_device_mapping(
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instance_type, instance.uuid, bdms)
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bdms = db.block_device_mapping_get_all_by_instance(
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self.context, instance['uuid'])
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self.assertEqual(0, len(bdms))
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@mock.patch('nova.cells.messaging._TargetedMessage')
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def test_rebuild_sig(self, mock_msg):
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# TODO(belliott) Cells could benefit from better testing to ensure API
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# and manager signatures stay up to date
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def wire(version):
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# wire the rpc cast directly to the manager method to make sure
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# the signature matches
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cells_mgr = manager.CellsManager()
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def cast(context, method, *args, **kwargs):
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fn = getattr(cells_mgr, method)
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fn(context, *args, **kwargs)
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cells_mgr.cast = cast
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return cells_mgr
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cells_rpcapi = self.compute_api.cells_rpcapi
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client = cells_rpcapi.client
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with mock.patch.object(client, 'prepare', side_effect=wire):
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inst = self._create_fake_instance_obj()
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inst.cell_name = 'mycell'
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cells_rpcapi.rebuild_instance(self.context, inst, 'pass', None,
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None, None, None, None,
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recreate=False,
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on_shared_storage=False, host='host',
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preserve_ephemeral=True, kwargs=None)
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# one targeted message should have been created
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self.assertEqual(1, mock_msg.call_count)
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class CellsConductorAPIRPCRedirect(test.NoDBTestCase):
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def setUp(self):
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super(CellsConductorAPIRPCRedirect, self).setUp()
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self.compute_api = compute_cells_api.ComputeCellsAPI()
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self.cells_rpcapi = mock.MagicMock()
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self.compute_api._compute_task_api.cells_rpcapi = self.cells_rpcapi
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self.context = context.RequestContext('fake', 'fake')
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@mock.patch.object(compute_api.API, '_record_action_start')
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@mock.patch.object(compute_api.API, '_provision_instances')
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@mock.patch.object(compute_api.API, '_check_and_transform_bdm')
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@mock.patch.object(compute_api.API, '_get_image')
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@mock.patch.object(compute_api.API, '_validate_and_build_base_options')
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def test_build_instances(self, _validate, _get_image, _check_bdm,
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_provision, _record_action_start):
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_get_image.return_value = (None, 'fake-image')
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_validate.return_value = ({}, 1)
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_check_bdm.return_value = 'bdms'
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_provision.return_value = 'instances'
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self.compute_api.create(self.context, 'fake-flavor', 'fake-image')
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# Subsequent tests in class are verifying the hooking. We don't check
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# args since this is verified in compute test code.
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self.assertTrue(self.cells_rpcapi.build_instances.called)
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@mock.patch.object(compute_api.API, '_record_action_start')
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@mock.patch.object(compute_api.API, '_resize_cells_support')
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@mock.patch.object(compute_api.API, '_reserve_quota_delta')
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@mock.patch.object(compute_api.API, '_upsize_quota_delta')
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@mock.patch.object(objects.Instance, 'save')
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@mock.patch.object(flavors, 'extract_flavor')
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@mock.patch.object(compute_api.API, '_check_auto_disk_config')
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def test_resize_instance(self, _check, _extract, _save, _upsize, _reserve,
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_cells, _record):
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_extract.return_value = {'name': 'fake', 'id': 'fake'}
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orig_system_metadata = {}
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instance = fake_instance.fake_instance_obj(self.context,
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vm_state=vm_states.ACTIVE, cell_name='fake-cell',
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launched_at=timeutils.utcnow(),
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system_metadata=orig_system_metadata,
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expected_attrs=['system_metadata'])
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self.compute_api.resize(self.context, instance)
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self.assertTrue(self.cells_rpcapi.resize_instance.called)
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@mock.patch.object(objects.Instance, 'save')
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def test_live_migrate_instance(self, instance_save):
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orig_system_metadata = {}
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instance = fake_instance.fake_instance_obj(self.context,
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vm_state=vm_states.ACTIVE, cell_name='fake-cell',
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launched_at=timeutils.utcnow(),
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system_metadata=orig_system_metadata,
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expected_attrs=['system_metadata'])
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self.compute_api.live_migrate(self.context, instance,
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True, True, 'fake_dest_host')
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self.assertTrue(self.cells_rpcapi.live_migrate_instance.called)
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@mock.patch.object(objects.Instance, 'save')
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@mock.patch.object(objects.Instance, 'get_flavor')
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@mock.patch.object(objects.BlockDeviceMappingList, 'get_by_instance_uuid')
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@mock.patch.object(compute_api.API, '_get_image')
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@mock.patch.object(compute_api.API, '_check_auto_disk_config')
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@mock.patch.object(compute_api.API, '_checks_for_create_and_rebuild')
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@mock.patch.object(compute_api.API, '_record_action_start')
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def test_rebuild_instance(self, _record_action_start,
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_checks_for_create_and_rebuild, _check_auto_disk_config,
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_get_image, bdm_get_by_instance_uuid, get_flavor, instance_save):
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orig_system_metadata = {}
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instance = fake_instance.fake_instance_obj(self.context,
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vm_state=vm_states.ACTIVE, cell_name='fake-cell',
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launched_at=timeutils.utcnow(),
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system_metadata=orig_system_metadata,
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expected_attrs=['system_metadata'])
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get_flavor.return_value = ''
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image_href = ''
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image = {"min_ram": 10, "min_disk": 1,
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"properties": {'architecture': 'x86_64'}}
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admin_pass = ''
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files_to_inject = []
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bdms = []
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_get_image.return_value = (None, image)
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bdm_get_by_instance_uuid.return_value = bdms
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self.compute_api.rebuild(self.context, instance, image_href,
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admin_pass, files_to_inject)
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self.assertTrue(self.cells_rpcapi.rebuild_instance.called)
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def test_check_equal(self):
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task_api = self.compute_api.compute_task_api
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tests = set()
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for (name, value) in inspect.getmembers(self, inspect.ismethod):
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if name.startswith('test_') and name != 'test_check_equal':
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tests.add(name[5:])
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if tests != set(task_api.cells_compatible):
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self.fail("Testcases not equivalent to cells_compatible list")
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class CellsComputePolicyTestCase(test_compute.ComputePolicyTestCase):
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def setUp(self):
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super(CellsComputePolicyTestCase, self).setUp()
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global ORIG_COMPUTE_API
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ORIG_COMPUTE_API = self.compute_api
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self.compute_api = compute_cells_api.ComputeCellsAPI()
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deploy_stubs(self.stubs, self.compute_api)
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def tearDown(self):
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global ORIG_COMPUTE_API
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self.compute_api = ORIG_COMPUTE_API
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super(CellsComputePolicyTestCase, self).tearDown()
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