nova/nova/tests/unit/compute/test_host_api.py

486 lines
20 KiB
Python

# Copyright (c) 2012 OpenStack Foundation
# All Rights Reserved.
# Copyright 2013 Red Hat, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import contextlib
import copy
import mock
from oslo_serialization import jsonutils
from nova.cells import utils as cells_utils
from nova import compute
from nova import context
from nova import exception
from nova import objects
from nova import test
from nova.tests.unit import fake_notifier
from nova.tests.unit.objects import test_objects
from nova.tests.unit.objects import test_service
class ComputeHostAPITestCase(test.TestCase):
def setUp(self):
super(ComputeHostAPITestCase, self).setUp()
self.host_api = compute.HostAPI()
self.ctxt = context.get_admin_context()
fake_notifier.stub_notifier(self.stubs)
self.addCleanup(fake_notifier.reset)
def _compare_obj(self, obj, db_obj):
test_objects.compare_obj(self, obj, db_obj,
allow_missing=test_service.OPTIONAL)
def _compare_objs(self, obj_list, db_obj_list):
for index, obj in enumerate(obj_list):
self._compare_obj(obj, db_obj_list[index])
def _mock_rpc_call(self, method, **kwargs):
self.mox.StubOutWithMock(self.host_api.rpcapi, method)
getattr(self.host_api.rpcapi, method)(
self.ctxt, **kwargs).AndReturn('fake-result')
def _mock_assert_host_exists(self):
"""Sets it so that the host API always thinks that 'fake_host'
exists.
"""
def fake_assert_host_exists(context, host_name, must_be_up=False):
return 'fake_host'
self.stubs.Set(self.host_api, '_assert_host_exists',
fake_assert_host_exists)
def test_set_host_enabled(self):
self._mock_assert_host_exists()
self._mock_rpc_call('set_host_enabled',
host='fake_host',
enabled='fake_enabled')
self.mox.ReplayAll()
fake_notifier.NOTIFICATIONS = []
result = self.host_api.set_host_enabled(self.ctxt, 'fake_host',
'fake_enabled')
self.assertEqual('fake-result', result)
self.assertEqual(2, len(fake_notifier.NOTIFICATIONS))
msg = fake_notifier.NOTIFICATIONS[0]
self.assertEqual('HostAPI.set_enabled.start', msg.event_type)
self.assertEqual('api.fake_host', msg.publisher_id)
self.assertEqual('INFO', msg.priority)
self.assertEqual('fake_enabled', msg.payload['enabled'])
self.assertEqual('fake_host', msg.payload['host_name'])
msg = fake_notifier.NOTIFICATIONS[1]
self.assertEqual('HostAPI.set_enabled.end', msg.event_type)
self.assertEqual('api.fake_host', msg.publisher_id)
self.assertEqual('INFO', msg.priority)
self.assertEqual('fake_enabled', msg.payload['enabled'])
self.assertEqual('fake_host', msg.payload['host_name'])
def test_host_name_from_assert_hosts_exists(self):
self._mock_assert_host_exists()
self._mock_rpc_call('set_host_enabled',
host='fake_host',
enabled='fake_enabled')
self.mox.ReplayAll()
result = self.host_api.set_host_enabled(self.ctxt, 'fake_hosT',
'fake_enabled')
self.assertEqual('fake-result', result)
def test_get_host_uptime(self):
self._mock_assert_host_exists()
self._mock_rpc_call('get_host_uptime',
host='fake_host')
self.mox.ReplayAll()
result = self.host_api.get_host_uptime(self.ctxt, 'fake_host')
self.assertEqual('fake-result', result)
def test_get_host_uptime_service_down(self):
def fake_service_get_by_compute_host(context, host_name):
return dict(test_service.fake_service, id=1)
self.stubs.Set(self.host_api.db, 'service_get_by_compute_host',
fake_service_get_by_compute_host)
def fake_service_is_up(service):
return False
self.stubs.Set(self.host_api.servicegroup_api,
'service_is_up', fake_service_is_up)
self.assertRaises(exception.ComputeServiceUnavailable,
self.host_api.get_host_uptime, self.ctxt,
'fake_host')
def test_host_power_action(self):
self._mock_assert_host_exists()
self._mock_rpc_call('host_power_action',
host='fake_host',
action='fake_action')
self.mox.ReplayAll()
fake_notifier.NOTIFICATIONS = []
result = self.host_api.host_power_action(self.ctxt, 'fake_host',
'fake_action')
self.assertEqual('fake-result', result)
self.assertEqual(2, len(fake_notifier.NOTIFICATIONS))
msg = fake_notifier.NOTIFICATIONS[0]
self.assertEqual('HostAPI.power_action.start', msg.event_type)
self.assertEqual('api.fake_host', msg.publisher_id)
self.assertEqual('INFO', msg.priority)
self.assertEqual('fake_action', msg.payload['action'])
self.assertEqual('fake_host', msg.payload['host_name'])
msg = fake_notifier.NOTIFICATIONS[1]
self.assertEqual('HostAPI.power_action.end', msg.event_type)
self.assertEqual('api.fake_host', msg.publisher_id)
self.assertEqual('INFO', msg.priority)
self.assertEqual('fake_action', msg.payload['action'])
self.assertEqual('fake_host', msg.payload['host_name'])
def test_set_host_maintenance(self):
self._mock_assert_host_exists()
self._mock_rpc_call('host_maintenance_mode',
host='fake_host',
host_param='fake_host',
mode='fake_mode')
self.mox.ReplayAll()
fake_notifier.NOTIFICATIONS = []
result = self.host_api.set_host_maintenance(self.ctxt, 'fake_host',
'fake_mode')
self.assertEqual('fake-result', result)
self.assertEqual(2, len(fake_notifier.NOTIFICATIONS))
msg = fake_notifier.NOTIFICATIONS[0]
self.assertEqual('HostAPI.set_maintenance.start', msg.event_type)
self.assertEqual('api.fake_host', msg.publisher_id)
self.assertEqual('INFO', msg.priority)
self.assertEqual('fake_host', msg.payload['host_name'])
self.assertEqual('fake_mode', msg.payload['mode'])
msg = fake_notifier.NOTIFICATIONS[1]
self.assertEqual('HostAPI.set_maintenance.end', msg.event_type)
self.assertEqual('api.fake_host', msg.publisher_id)
self.assertEqual('INFO', msg.priority)
self.assertEqual('fake_host', msg.payload['host_name'])
self.assertEqual('fake_mode', msg.payload['mode'])
def test_service_get_all_no_zones(self):
services = [dict(test_service.fake_service,
id=1, topic='compute', host='host1'),
dict(test_service.fake_service,
topic='compute', host='host2')]
self.mox.StubOutWithMock(self.host_api.db,
'service_get_all')
# Test no filters
self.host_api.db.service_get_all(self.ctxt,
disabled=None).AndReturn(services)
self.mox.ReplayAll()
result = self.host_api.service_get_all(self.ctxt)
self.mox.VerifyAll()
self._compare_objs(result, services)
# Test no filters #2
self.mox.ResetAll()
self.host_api.db.service_get_all(self.ctxt,
disabled=None).AndReturn(services)
self.mox.ReplayAll()
result = self.host_api.service_get_all(self.ctxt, filters={})
self.mox.VerifyAll()
self._compare_objs(result, services)
# Test w/ filter
self.mox.ResetAll()
self.host_api.db.service_get_all(self.ctxt,
disabled=None).AndReturn(services)
self.mox.ReplayAll()
result = self.host_api.service_get_all(self.ctxt,
filters=dict(host='host2'))
self.mox.VerifyAll()
self._compare_objs(result, [services[1]])
def test_service_get_all(self):
services = [dict(test_service.fake_service,
topic='compute', host='host1'),
dict(test_service.fake_service,
topic='compute', host='host2')]
exp_services = []
for service in services:
exp_service = {}
exp_service.update(availability_zone='nova', **service)
exp_services.append(exp_service)
self.mox.StubOutWithMock(self.host_api.db,
'service_get_all')
# Test no filters
self.host_api.db.service_get_all(self.ctxt,
disabled=None).AndReturn(services)
self.mox.ReplayAll()
result = self.host_api.service_get_all(self.ctxt, set_zones=True)
self.mox.VerifyAll()
self._compare_objs(result, exp_services)
# Test no filters #2
self.mox.ResetAll()
self.host_api.db.service_get_all(self.ctxt,
disabled=None).AndReturn(services)
self.mox.ReplayAll()
result = self.host_api.service_get_all(self.ctxt, filters={},
set_zones=True)
self.mox.VerifyAll()
self._compare_objs(result, exp_services)
# Test w/ filter
self.mox.ResetAll()
self.host_api.db.service_get_all(self.ctxt,
disabled=None).AndReturn(services)
self.mox.ReplayAll()
result = self.host_api.service_get_all(self.ctxt,
filters=dict(host='host2'),
set_zones=True)
self.mox.VerifyAll()
self._compare_objs(result, [exp_services[1]])
# Test w/ zone filter but no set_zones arg.
self.mox.ResetAll()
self.host_api.db.service_get_all(self.ctxt,
disabled=None).AndReturn(services)
self.mox.ReplayAll()
filters = {'availability_zone': 'nova'}
result = self.host_api.service_get_all(self.ctxt,
filters=filters)
self.mox.VerifyAll()
self._compare_objs(result, exp_services)
def test_service_get_by_compute_host(self):
self.mox.StubOutWithMock(self.host_api.db,
'service_get_by_compute_host')
self.host_api.db.service_get_by_compute_host(self.ctxt,
'fake-host').AndReturn(test_service.fake_service)
self.mox.ReplayAll()
result = self.host_api.service_get_by_compute_host(self.ctxt,
'fake-host')
self.assertEqual(test_service.fake_service['id'], result.id)
def test_service_update(self):
host_name = 'fake-host'
binary = 'nova-compute'
params_to_update = dict(disabled=True)
service_id = 42
expected_result = dict(test_service.fake_service, id=service_id)
self.mox.StubOutWithMock(self.host_api.db,
'service_get_by_host_and_binary')
self.host_api.db.service_get_by_host_and_binary(self.ctxt,
host_name, binary).AndReturn(expected_result)
self.mox.StubOutWithMock(self.host_api.db, 'service_update')
self.host_api.db.service_update(
self.ctxt, service_id, params_to_update).AndReturn(expected_result)
self.mox.ReplayAll()
result = self.host_api.service_update(
self.ctxt, host_name, binary, params_to_update)
self._compare_obj(result, expected_result)
@mock.patch.object(objects.InstanceList, 'get_by_host',
return_value = ['fake-responses'])
def test_instance_get_all_by_host(self, mock_get):
result = self.host_api.instance_get_all_by_host(self.ctxt,
'fake-host')
self.assertEqual(['fake-responses'], result)
def test_task_log_get_all(self):
self.mox.StubOutWithMock(self.host_api.db, 'task_log_get_all')
self.host_api.db.task_log_get_all(self.ctxt,
'fake-name', 'fake-begin', 'fake-end', host='fake-host',
state='fake-state').AndReturn('fake-response')
self.mox.ReplayAll()
result = self.host_api.task_log_get_all(self.ctxt, 'fake-name',
'fake-begin', 'fake-end', host='fake-host',
state='fake-state')
self.assertEqual('fake-response', result)
def test_service_delete(self):
with contextlib.nested(
mock.patch.object(objects.Service, 'get_by_id',
return_value=objects.Service()),
mock.patch.object(objects.Service, 'destroy')
) as (
get_by_id, destroy
):
self.host_api.service_delete(self.ctxt, 1)
get_by_id.assert_called_once_with(self.ctxt, 1)
destroy.assert_called_once_with()
class ComputeHostAPICellsTestCase(ComputeHostAPITestCase):
def setUp(self):
self.flags(enable=True, group='cells')
self.flags(cell_type='api', group='cells')
super(ComputeHostAPICellsTestCase, self).setUp()
def _mock_rpc_call(self, method, **kwargs):
if 'host_param' in kwargs:
kwargs.pop('host_param')
else:
kwargs.pop('host')
rpc_message = {
'method': method,
'namespace': None,
'args': kwargs,
'version': self.host_api.rpcapi.client.target.version,
}
cells_rpcapi = self.host_api.rpcapi.client.cells_rpcapi
self.mox.StubOutWithMock(cells_rpcapi, 'proxy_rpc_to_manager')
cells_rpcapi.proxy_rpc_to_manager(self.ctxt,
rpc_message,
'compute.fake_host',
call=True).AndReturn('fake-result')
def test_service_get_all_no_zones(self):
services = [
cells_utils.ServiceProxy(
objects.Service(id=1, topic='compute', host='host1'),
'cell1'),
cells_utils.ServiceProxy(
objects.Service(id=2, topic='compute', host='host2'),
'cell1')]
fake_filters = {'host': 'host1'}
self.mox.StubOutWithMock(self.host_api.cells_rpcapi,
'service_get_all')
self.host_api.cells_rpcapi.service_get_all(self.ctxt,
filters=fake_filters).AndReturn(services)
self.mox.ReplayAll()
result = self.host_api.service_get_all(self.ctxt,
filters=fake_filters)
self.assertEqual(services, result)
def _test_service_get_all(self, fake_filters, **kwargs):
services = [
cells_utils.ServiceProxy(
objects.Service(**dict(test_service.fake_service, id=1,
topic='compute', host='host1')),
'cell1'),
cells_utils.ServiceProxy(
objects.Service(**dict(test_service.fake_service, id=2,
topic='compute', host='host2')),
'cell1')]
exp_services = []
for service in services:
exp_service = copy.copy(service)
exp_service.update({'availability_zone': 'nova'})
exp_services.append(exp_service)
self.mox.StubOutWithMock(self.host_api.cells_rpcapi,
'service_get_all')
self.host_api.cells_rpcapi.service_get_all(self.ctxt,
filters=fake_filters).AndReturn(services)
self.mox.ReplayAll()
result = self.host_api.service_get_all(self.ctxt,
filters=fake_filters,
**kwargs)
self.mox.VerifyAll()
self.assertEqual(jsonutils.to_primitive(exp_services),
jsonutils.to_primitive(result))
def test_service_get_all(self):
fake_filters = {'availability_zone': 'nova'}
self._test_service_get_all(fake_filters)
def test_service_get_all_set_zones(self):
fake_filters = {'key1': 'val1'}
self._test_service_get_all(fake_filters, set_zones=True)
def test_service_get_by_compute_host(self):
self.mox.StubOutWithMock(self.host_api.cells_rpcapi,
'service_get_by_compute_host')
obj = objects.Service(id=1, host='fake')
fake_service = cells_utils.ServiceProxy(obj, 'cell1')
self.host_api.cells_rpcapi.service_get_by_compute_host(self.ctxt,
'fake-host').AndReturn(fake_service)
self.mox.ReplayAll()
result = self.host_api.service_get_by_compute_host(self.ctxt,
'fake-host')
self.assertEqual(fake_service, result)
def test_service_update(self):
host_name = 'fake-host'
binary = 'nova-compute'
params_to_update = dict(disabled=True)
obj = objects.Service(id=42, host='fake')
fake_service = cells_utils.ServiceProxy(obj, 'cell1')
self.mox.StubOutWithMock(self.host_api.cells_rpcapi, 'service_update')
self.host_api.cells_rpcapi.service_update(
self.ctxt, host_name,
binary, params_to_update).AndReturn(fake_service)
self.mox.ReplayAll()
result = self.host_api.service_update(
self.ctxt, host_name, binary, params_to_update)
self.assertEqual(fake_service, result)
def test_service_delete(self):
cell_service_id = cells_utils.cell_with_item('cell1', 1)
with mock.patch.object(self.host_api.cells_rpcapi,
'service_delete') as service_delete:
self.host_api.service_delete(self.ctxt, cell_service_id)
service_delete.assert_called_once_with(
self.ctxt, cell_service_id)
@mock.patch.object(objects.InstanceList, 'get_by_host')
def test_instance_get_all_by_host(self, mock_get):
instances = [dict(id=1, cell_name='cell1', host='host1'),
dict(id=2, cell_name='cell2', host='host1'),
dict(id=3, cell_name='cell1', host='host2')]
mock_get.return_value = instances
expected_result = [instances[0], instances[2]]
cell_and_host = cells_utils.cell_with_item('cell1', 'fake-host')
result = self.host_api.instance_get_all_by_host(self.ctxt,
cell_and_host)
self.assertEqual(expected_result, result)
def test_task_log_get_all(self):
self.mox.StubOutWithMock(self.host_api.cells_rpcapi,
'task_log_get_all')
self.host_api.cells_rpcapi.task_log_get_all(self.ctxt,
'fake-name', 'fake-begin', 'fake-end', host='fake-host',
state='fake-state').AndReturn('fake-response')
self.mox.ReplayAll()
result = self.host_api.task_log_get_all(self.ctxt, 'fake-name',
'fake-begin', 'fake-end', host='fake-host',
state='fake-state')
self.assertEqual('fake-response', result)
def test_get_host_uptime_service_down(self):
# The corresponding Compute test case depends on the
# _assert_host_exists which is a no-op in the cells api
pass
def test_get_host_uptime(self):
self.mox.StubOutWithMock(self.host_api.cells_rpcapi,
'get_host_uptime')
self.host_api.cells_rpcapi.get_host_uptime(self.ctxt,
'fake-host'). \
AndReturn('fake-response')
self.mox.ReplayAll()
result = self.host_api.get_host_uptime(self.ctxt, 'fake-host')
self.assertEqual('fake-response', result)