104 lines
4.3 KiB
Python
104 lines
4.3 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.
|
|
|
|
from nova import test
|
|
from nova.tests import fixtures as nova_fixtures
|
|
from nova.tests.functional import integrated_helpers
|
|
from nova.tests.unit import cast_as_call
|
|
import nova.tests.unit.image.fake
|
|
from nova.tests.unit import policy_fixture
|
|
|
|
|
|
class TestLocalDeleteAllocations(test.TestCase,
|
|
integrated_helpers.InstanceHelperMixin):
|
|
def setUp(self):
|
|
super(TestLocalDeleteAllocations, self).setUp()
|
|
self.useFixture(policy_fixture.RealPolicyFixture())
|
|
# The NeutronFixture is needed to show security groups for a server.
|
|
self.useFixture(nova_fixtures.NeutronFixture(self))
|
|
# We need the computes reporting into placement for the filter
|
|
# scheduler to pick a host.
|
|
placement = self.useFixture(nova_fixtures.PlacementFixture())
|
|
self.placement_api = placement.api
|
|
api_fixture = self.useFixture(nova_fixtures.OSAPIFixture(
|
|
api_version='v2.1'))
|
|
self.api = api_fixture.api
|
|
self.admin_api = api_fixture.admin_api
|
|
# We need the latest microversion to force-down the compute service
|
|
self.admin_api.microversion = 'latest'
|
|
# the image fake backend needed for image discovery
|
|
nova.tests.unit.image.fake.stub_out_image_service(self)
|
|
|
|
self.start_service('conductor')
|
|
self.start_service('consoleauth')
|
|
|
|
self.flags(enabled_filters=['RetryFilter', 'ComputeFilter'],
|
|
group='filter_scheduler')
|
|
self.start_service('scheduler')
|
|
|
|
self.compute = self.start_service('compute')
|
|
|
|
self.useFixture(cast_as_call.CastAsCall(self))
|
|
|
|
self.image_id = self.api.get_images()[0]['id']
|
|
self.flavor_id = self.api.get_flavors()[0]['id']
|
|
|
|
def _get_usages(self, rp_uuid):
|
|
fmt = '/resource_providers/%(uuid)s/usages'
|
|
resp = self.placement_api.get(fmt % {'uuid': rp_uuid})
|
|
return resp.body['usages']
|
|
|
|
def test_local_delete_removes_allocations(self):
|
|
"""Tests that allocations are removed after a local delete.
|
|
|
|
This tests the scenario where a server is local deleted (because the
|
|
compute host is down) and we want to make sure that its allocations
|
|
have been cleaned up.
|
|
"""
|
|
# Get allocations, make sure they are 0.
|
|
resp = self.placement_api.get('/resource_providers')
|
|
rp_uuid = resp.body['resource_providers'][0]['uuid']
|
|
usages_before = self._get_usages(rp_uuid)
|
|
for usage in usages_before.values():
|
|
self.assertEqual(0, usage)
|
|
|
|
# Create a server.
|
|
server = self._build_minimal_create_server_request(self.api,
|
|
'local-delete-test', self.image_id, self.flavor_id, 'none')
|
|
server = self.admin_api.post_server({'server': server})
|
|
server = self._wait_for_state_change(self.api, server, 'ACTIVE')
|
|
|
|
# Assert usages are non zero now.
|
|
usages_during = self._get_usages(rp_uuid)
|
|
for usage in usages_during.values():
|
|
self.assertNotEqual(0, usage)
|
|
|
|
# Force-down compute to trigger local delete.
|
|
self.compute.stop()
|
|
compute_service_id = self.admin_api.get_services(
|
|
host=self.compute.host, binary='nova-compute')[0]['id']
|
|
self.admin_api.put_service(compute_service_id, {'forced_down': True})
|
|
|
|
# Delete the server (will be a local delete because compute is down).
|
|
self.api.delete_server(server['id'])
|
|
|
|
# Start the compute service again. Before it comes up, it will call the
|
|
# update_available_resource code in the ResourceTracker which is what
|
|
# "heals" the allocations for the deleted instance.
|
|
self.compute.start()
|
|
|
|
# Get the allocations again to check against the original.
|
|
usages_after = self._get_usages(rp_uuid)
|
|
|
|
# They should match.
|
|
self.assertEqual(usages_before, usages_after)
|