# Copyright 2016 IBM Corp. # # 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 time from unittest import mock import fixtures import io from nova import test from nova.tests import fixtures as nova_fixtures from nova.tests.fixtures import libvirt as fakelibvirt from nova.tests.functional import fixtures as func_fixtures from nova.virt.libvirt import guest as libvirt_guest class TestSerialConsoleLiveMigrate(test.TestCase): REQUIRES_LOCKING = True def setUp(self): super(TestSerialConsoleLiveMigrate, self).setUp() self.useFixture(nova_fixtures.RealPolicyFixture()) self.useFixture(nova_fixtures.NeutronFixture(self)) self.useFixture(nova_fixtures.GlanceFixture(self)) self.useFixture(func_fixtures.PlacementFixture()) api_fixture = self.useFixture(nova_fixtures.OSAPIFixture( api_version='v2.1')) # Replace libvirt with fakelibvirt self.useFixture(fixtures.MonkeyPatch( 'nova.virt.libvirt.driver.libvirt', fakelibvirt)) self.useFixture(fixtures.MonkeyPatch( 'nova.virt.libvirt.host.libvirt', fakelibvirt)) self.useFixture(fixtures.MonkeyPatch( 'nova.virt.libvirt.guest.libvirt', fakelibvirt)) self.useFixture(nova_fixtures.LibvirtFixture()) self.useFixture(nova_fixtures.CGroupsFixture()) self.admin_api = api_fixture.admin_api self.api = api_fixture.api self.flags(compute_driver='libvirt.LibvirtDriver') self.flags(enabled=True, group="serial_console") self.flags(enabled=False, group="vnc") self.flags(enabled=False, group="spice") self.start_service('conductor') self.start_service('scheduler') self.compute = self.start_service('compute', host='test_compute1') self.useFixture(nova_fixtures.CastAsCallFixture(self)) self.image_id = self.api.get_images()[0]['id'] self.flavor_id = self.api.get_flavors()[0]['id'] @mock.patch.object(fakelibvirt.Domain, 'undefine') @mock.patch('nova.virt.libvirt.LibvirtDriver.get_volume_connector') @mock.patch('nova.virt.libvirt.guest.Guest.get_job_info') @mock.patch.object(fakelibvirt.Domain, 'migrateToURI3') @mock.patch('nova.virt.libvirt.host.Host.get_connection') @mock.patch('nova.virt.disk.api.get_disk_size', return_value=1024) @mock.patch('os.path.getsize', return_value=1024) @mock.patch('nova.conductor.tasks.live_migrate.LiveMigrationTask.' '_check_destination_is_not_source', return_value=False) @mock.patch('nova.virt.libvirt.LibvirtDriver._create_image', return_value=(False, False)) @mock.patch('nova.virt.libvirt.LibvirtDriver._get_local_gb_info', return_value={'total': 128, 'used': 44, 'free': 84}) @mock.patch('nova.virt.libvirt.driver.libvirt_utils.is_valid_hostname', return_value=True) @mock.patch('nova.virt.libvirt.driver.libvirt_utils.file_open', side_effect=[io.BytesIO(b''), io.BytesIO(b'')]) def test_serial_console_live_migrate(self, mock_file_open, mock_valid_hostname, mock_get_fs_info, mock_create_image, mock_conductor_source_check, mock_path_get_size, mock_get_disk_size, mock_host_get_connection, mock_migrate_to_uri, mock_get_job_info, mock_get_volume_connector, mock_undefine): """Regression test for bug #1595962. If the graphical consoles VNC and SPICE are disabled, the live-migration of an instance will result in an ERROR state. VNC and SPICE are usually disabled on IBM z systems platforms where graphical consoles are not available. The serial console is then enabled and VNC + SPICE are disabled. The error will be raised at https://opendev.org/openstack/nova/src/commit/ 4f33047d07f5a11b208c344fe206aba01cd8e6fe/ nova/virt/libvirt/driver.py#L5842-L5852 """ mock_get_job_info.return_value = libvirt_guest.JobInfo( type=fakelibvirt.VIR_DOMAIN_JOB_COMPLETED) fake_connection = fakelibvirt.Connection('qemu:///system', version=fakelibvirt.FAKE_LIBVIRT_VERSION, hv_version=fakelibvirt.FAKE_QEMU_VERSION) mock_host_get_connection.return_value = fake_connection # We invoke cleanup on source host first which will call undefine # method currently. Since in functional test we make all compute # services linked to the same connection, we need to mock the undefine # method to avoid triggering 'Domain not found' error in subsequent # rpc call post_live_migration_at_destination. mock_undefine.return_value = True server_attr = dict(name='server1', imageRef=self.image_id, flavorRef=self.flavor_id) server = self.api.post_server({'server': server_attr}) server_id = server['id'] self.wait_till_active_or_timeout(server_id) post = {"os-migrateLive": { "block_migration": False, "disk_over_commit": False, "host": "test_compute1" }} try: # This should succeed self.admin_api.post_server_action(server_id, post) self.wait_till_active_or_timeout(server_id) except Exception as ex: self.fail(ex.response.content) def wait_till_active_or_timeout(self, server_id): timeout = 0.0 server = self.api.get_server(server_id) while server['status'] != "ACTIVE" and timeout < 10.0: time.sleep(.1) timeout += .1 server = self.api.get_server(server_id) if server['status'] != "ACTIVE": self.fail("The server is not active after the timeout.")