Merge "Add functional test for AggregateMultiTenancyIsolation + migrate"

Author: Zuul

nova/tests/functional/test_aggregates.py

@@ -551,3 +551,123 @@ def spy_get_filtered_hosts(*args, **kwargs):
             server = user_api.post_server(server_req)
         self._wait_for_state_change(user_api, server, 'ACTIVE')
         self.assertEqual(2, len(self.filtered_hosts))
+
+
+class AggregateMultiTenancyIsolationColdMigrateTest(
+        test.TestCase, integrated_helpers.InstanceHelperMixin):
+
+    @staticmethod
+    def _create_aggregate(admin_api, name):
+        return admin_api.api_post(
+            '/os-aggregates', {'aggregate': {'name': name}}).body['aggregate']
+
+    @staticmethod
+    def _add_host_to_aggregate(admin_api, aggregate, host):
+        add_host_req_body = {
+            "add_host": {
+                "host": host
+            }
+        }
+        admin_api.api_post(
+            '/os-aggregates/%s/action' % aggregate['id'], add_host_req_body)
+
+    @staticmethod
+    def _isolate_aggregate(admin_api, aggregate, tenant_id):
+        set_meta_req_body = {
+            "set_metadata": {
+                "metadata": {
+                    "filter_tenant_id": tenant_id
+                }
+            }
+        }
+        admin_api.api_post(
+            '/os-aggregates/%s/action' % aggregate['id'], set_meta_req_body)
+
+    def setUp(self):
+        super(AggregateMultiTenancyIsolationColdMigrateTest, self).setUp()
+        self.useFixture(policy_fixture.RealPolicyFixture())
+        self.useFixture(nova_fixtures.NeutronFixture(self))
+        self.useFixture(func_fixtures.PlacementFixture())
+        # Intentionally keep these separate since we want to create the
+        # server with the non-admin user in a different project.
+        admin_api_fixture = self.useFixture(nova_fixtures.OSAPIFixture(
+            api_version='v2.1', project_id=uuids.admin_project))
+        self.admin_api = admin_api_fixture.admin_api
+        self.admin_api.microversion = 'latest'
+        user_api_fixture = self.useFixture(nova_fixtures.OSAPIFixture(
+            api_version='v2.1', project_id=uuids.user_project))
+        self.api = user_api_fixture.api
+        self.api.microversion = 'latest'
+
+        # the image fake backend needed for image discovery
+        nova.tests.unit.image.fake.stub_out_image_service(self)
+        self.addCleanup(nova.tests.unit.image.fake.FakeImageService_reset)
+
+        self.start_service('conductor')
+        # Enable the AggregateMultiTenancyIsolation filter before starting the
+        # scheduler service.
+        enabled_filters = CONF.filter_scheduler.enabled_filters
+        if 'AggregateMultiTenancyIsolation' not in enabled_filters:
+            enabled_filters.append('AggregateMultiTenancyIsolation')
+            self.flags(
+                enabled_filters=enabled_filters, group='filter_scheduler')
+        # Add a custom weigher which will weigh host1, which will be in the
+        # admin project aggregate, higher than the other hosts which are in
+        # the non-admin project aggregate.
+        self.flags(weight_classes=[__name__ + '.HostNameWeigher'],
+                   group='filter_scheduler')
+        self.start_service('scheduler')
+
+        for host in ('host1', 'host2', 'host3'):
+            self.start_service('compute', host=host)
+
+        # Create an admin-only aggregate for the admin project. This is needed
+        # because if host1 is not in an aggregate with the filter_tenant_id
+        # metadata key, the filter will accept that host even for the non-admin
+        # project.
+        admin_aggregate = self._create_aggregate(
+            self.admin_api, 'admin-aggregate')
+        self._add_host_to_aggregate(self.admin_api, admin_aggregate, 'host1')
+
+        # Restrict the admin project to the admin aggregate.
+        self._isolate_aggregate(
+            self.admin_api, admin_aggregate, uuids.admin_project)
+
+        # Create the tenant aggregate for the non-admin project.
+        tenant_aggregate = self._create_aggregate(
+            self.admin_api, 'tenant-aggregate')
+
+        # Add two compute hosts to the tenant aggregate. We exclude host1
+        # since that is weighed higher in HostNameWeigher and we want to
+        # ensure the scheduler properly filters out host1 before we even get
+        # to weighing the selected hosts.
+        for host in ('host2', 'host3'):
+            self._add_host_to_aggregate(self.admin_api, tenant_aggregate, host)
+
+        # Restrict the non-admin project to the tenant aggregate.
+        self._isolate_aggregate(
+            self.admin_api, tenant_aggregate, uuids.user_project)
+
+    def test_cold_migrate_server(self):
+        """Creates a server using the non-admin project, then cold migrates
+        the server and asserts the server goes to the other host in the
+        isolated host aggregate via the AggregateMultiTenancyIsolation filter.
+        """
+        img = nova.tests.unit.image.fake.AUTO_DISK_CONFIG_ENABLED_IMAGE_UUID
+        server_req_body = self._build_minimal_create_server_request(
+            self.api, 'test_cold_migrate_server', image_uuid=img,
+            networks='none')
+        server = self.api.post_server({'server': server_req_body})
+        server = self._wait_for_state_change(self.admin_api, server, 'ACTIVE')
+        # Ensure the server ended up in host2 or host3
+        original_host = server['OS-EXT-SRV-ATTR:host']
+        self.assertNotEqual('host1', original_host)
+        # Now cold migrate the server and it should end up in the other host
+        # in the same tenant-isolated aggregate.
+        self.admin_api.api_post(
+            '/servers/%s/action' % server['id'], {'migrate': None})
+        server = self._wait_for_state_change(
+            self.admin_api, server, 'VERIFY_RESIZE')
+        # Ensure the server is on the other host in the same aggregate.
+        expected_host = 'host3' if original_host == 'host2' else 'host2'
+        self.assertEqual(expected_host, server['OS-EXT-SRV-ATTR:host'])