a34bcb76d2
Now counter has been renamed to sample, so it is better that we update the function get_counters to get_samples. Implements part of blueprint remove-counter Change-Id: I908ea347f8d0fd4b5ef4b76eee6de98da5d2e0ca
230 lines
9.0 KiB
Python
230 lines
9.0 KiB
Python
# -*- encoding: utf-8 -*-
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#
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# Copyright © 2012 New Dream Network, LLC (DreamHost)
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#
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# Author: Julien Danjou <julien@danjou.info>
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# Doug Hellmann <doug.hellmann@dreamhost.com>
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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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"""Tests for ceilometer.compute.nova_notifier
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"""
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import contextlib
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import datetime
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import mock
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from stevedore import extension
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from stevedore.tests import manager as test_manager
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## NOTE(dhellmann): These imports are not in the generally approved
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## alphabetical order, but they are in the order that actually
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## works. Please don't change them.
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from nova.tests import fake_network
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from nova.compute import vm_states
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try:
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from nova.compute import flavors
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except ImportError:
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from nova.compute import instance_types as flavors
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from nova import config
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from nova import context
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from nova import db
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from nova.openstack.common import importutils
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from nova.openstack.common import log as logging
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from nova.openstack.common.notifier import api as notifier_api
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# This option is used in the nova_notifier module, so make
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# sure it is defined.
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config.cfg.CONF.import_opt('compute_manager', 'nova.service')
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# HACK(dhellmann): Import this before any other ceilometer code
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# because the notifier module messes with the import path to force
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# nova's version of oslo to be used instead of ceilometer's.
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from ceilometer.compute import nova_notifier
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from ceilometer import sample
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from ceilometer.tests import base
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LOG = logging.getLogger(__name__)
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nova_CONF = config.cfg.CONF
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class TestNovaNotifier(base.TestCase):
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class Pollster(object):
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instances = []
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test_data = sample.Sample(
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name='test',
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type=sample.TYPE_CUMULATIVE,
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unit='units-go-here',
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volume=1,
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user_id='test',
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project_id='test',
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resource_id='test_run_tasks',
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timestamp=datetime.datetime.utcnow().isoformat(),
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resource_metadata={'name': 'Pollster',
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},
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)
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def get_samples(self, manager, cache, instance):
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self.instances.append((manager, instance))
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return [self.test_data]
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def get_counter_names(self):
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return ['test']
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@mock.patch('ceilometer.pipeline.setup_pipeline', mock.MagicMock())
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def setUp(self):
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super(TestNovaNotifier, self).setUp()
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nova_CONF.compute_driver = 'nova.virt.fake.FakeDriver'
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nova_CONF.notification_driver = [nova_notifier.__name__]
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nova_CONF.rpc_backend = 'nova.openstack.common.rpc.impl_fake'
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nova_CONF.vnc_enabled = False
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nova_CONF.spice.enabled = False
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self.compute = importutils.import_object(nova_CONF.compute_manager)
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self.context = context.get_admin_context()
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fake_network.set_stub_network_methods(self.stubs)
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self.instance = {"name": "instance-1",
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'OS-EXT-SRV-ATTR:instance_name': 'instance-1',
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"id": 1,
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"image_ref": "FAKE",
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"user_id": "FAKE",
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"project_id": "FAKE",
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"display_name": "FAKE NAME",
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"hostname": "abcdef",
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"reservation_id": "FAKE RID",
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"instance_type_id": 1,
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"architecture": "x86",
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"memory_mb": "1024",
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"root_gb": "20",
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"ephemeral_gb": "0",
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"vcpus": 1,
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'node': "fakenode",
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"host": "fakehost",
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"availability_zone":
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"1e3ce043029547f1a61c1996d1a531a4",
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"created_at": '2012-05-08 20:23:41',
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"os_type": "linux",
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"kernel_id": "kernelid",
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"ramdisk_id": "ramdiskid",
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"vm_state": vm_states.ACTIVE,
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"access_ip_v4": "someip",
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"access_ip_v6": "someip",
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"metadata": {},
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"uuid": "144e08f4-00cb-11e2-888e-5453ed1bbb5f",
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"system_metadata": {}}
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self.stubs.Set(db, 'instance_info_cache_delete', self.do_nothing)
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self.stubs.Set(db, 'instance_destroy', self.do_nothing)
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self.stubs.Set(db, 'instance_system_metadata_get',
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self.fake_db_instance_system_metadata_get)
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self.stubs.Set(db, 'block_device_mapping_get_all_by_instance',
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lambda context, instance: {})
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self.stubs.Set(db, 'instance_update_and_get_original',
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lambda context, uuid, kwargs: (self.instance,
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self.instance))
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self.stubs.Set(flavors, 'extract_flavor',
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lambda ref: {})
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# Set up to capture the notification messages generated by the
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# plugin and to invoke our notifier plugin.
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self.notifications = []
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notifier_api._reset_drivers()
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notifier_api.add_driver(self)
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notifier_api.add_driver(nova_notifier)
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ext_mgr = test_manager.TestExtensionManager([
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extension.Extension('test',
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None,
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None,
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self.Pollster(),
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),
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])
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self.ext_mgr = ext_mgr
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self.gatherer = nova_notifier.DeletedInstanceStatsGatherer(ext_mgr)
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nova_notifier.initialize_gatherer(self.gatherer)
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# Terminate the instance to trigger the notification.
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with contextlib.nested(
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# Under Grizzly, Nova has moved to no-db access on the
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# compute node. The compute manager uses RPC to talk to
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# the conductor. We need to disable communication between
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# the nova manager and the remote system since we can't
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# expect the message bus to be available, or the remote
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# controller to be there if the message bus is online.
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mock.patch.object(self.compute, 'conductor_api'),
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# The code that looks up the instance uses a global
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# reference to the API, so we also have to patch that to
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# return our fake data.
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mock.patch.object(nova_notifier.instance_info_source,
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'instance_get_by_uuid',
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self.fake_instance_ref_get),
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):
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self.compute.terminate_instance(self.context,
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instance=self.instance)
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def tearDown(self):
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notifier_api._reset_drivers()
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self.Pollster.instances = []
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super(TestNovaNotifier, self).tearDown()
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nova_notifier._gatherer = None
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def fake_instance_ref_get(self, context, id_):
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if self.instance['uuid'] == id_:
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return self.instance
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return {}
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@staticmethod
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def do_nothing(*args, **kwargs):
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pass
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@staticmethod
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def fake_db_instance_system_metadata_get(context, uuid):
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return dict(meta_a=123, meta_b="foobar")
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def notify(self, context, message):
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self.notifications.append(message)
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def test_pollster_called(self):
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# The notifier plugin sends another notification for the same
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# instance, so we expect to have 2 entries in the list.
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self.assertEqual(len(self.Pollster.instances), 2)
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def test_correct_instance(self):
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for i, (gatherer, inst) in enumerate(self.Pollster.instances):
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self.assertEqual((i, inst.uuid), (i, self.instance['uuid']))
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def test_correct_gatherer(self):
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for i, (gatherer, inst) in enumerate(self.Pollster.instances):
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self.assertEqual((i, gatherer), (i, self.gatherer))
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def test_samples(self):
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# Ensure that the outgoing notification looks like what we expect
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for message in self.notifications:
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event = message['event_type']
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if event != 'compute.instance.delete.samples':
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continue
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payload = message['payload']
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samples = payload['samples']
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self.assertEqual(len(samples), 1)
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s = payload['samples'][0]
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self.assertEqual(s, {'name': 'test',
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'type': sample.TYPE_CUMULATIVE,
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'unit': 'units-go-here',
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'volume': 1,
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})
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break
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else:
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assert False, 'Did not find expected event'
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