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How to use _migrate_server_to method in tempest

Best Python code snippet using tempest_python

test_live_block_migration.py

Source:test_live_block_migration.py

...41        _resp, body = self.admin_servers_client.get_server(server_id)42        return body43    def _get_host_for_server(self, server_id):44        return self._get_server_details(server_id)[self._host_key]45    def _migrate_server_to(self, server_id, dest_host):46        _resp, body = self.admin_servers_client.live_migrate_server(47            server_id, dest_host,48            self.config.compute_feature_enabled.49            block_migration_for_live_migration)50        return body51    def _get_host_other_than(self, host):52        for target_host in self._get_compute_hostnames():53            if host != target_host:54                return target_host55    def _get_non_existing_host_name(self):56        random_name = ''.join(57            random.choice(string.ascii_uppercase) for x in range(20))58        self.assertNotIn(random_name, self._get_compute_hostnames())59        return random_name60    def _get_server_status(self, server_id):61        return self._get_server_details(server_id)['status']62    def _get_an_active_server(self):63        for server_id in self.created_server_ids:64            if 'ACTIVE' == self._get_server_status(server_id):65                return server_id66        else:67            _, server = self.create_test_server(wait_until="ACTIVE")68            server_id = server['id']69            self.password = server['adminPass']70            self.password = 'password'71            self.created_server_ids.append(server_id)72            return server_id73    def _volume_clean_up(self, server_id, volume_id):74        resp, body = self.volumes_client.get_volume(volume_id)75        if body['status'] == 'in-use':76            self.servers_client.detach_volume(server_id, volume_id)77            self.volumes_client.wait_for_volume_status(volume_id, 'available')78        self.volumes_client.delete_volume(volume_id)79    @testtools.skipIf(not CONF.compute_feature_enabled.live_migration,80                      'Live migration not available')81    @attr(type='gate')82    def test_live_block_migration(self):83        # Live block migrate an instance to another host84        if len(self._get_compute_hostnames()) < 2:85            raise self.skipTest(86                "Less than 2 compute nodes, skipping migration test.")87        server_id = self._get_an_active_server()88        actual_host = self._get_host_for_server(server_id)89        target_host = self._get_host_other_than(actual_host)90        self._migrate_server_to(server_id, target_host)91        self.servers_client.wait_for_server_status(server_id, 'ACTIVE')92        self.assertEqual(target_host, self._get_host_for_server(server_id))93    @testtools.skipIf(not CONF.compute_feature_enabled.live_migration,94                      'Live migration not available')95    @attr(type='gate')96    def test_invalid_host_for_migration(self):97        # Migrating to an invalid host should not change the status98        server_id = self._get_an_active_server()99        target_host = self._get_non_existing_host_name()100        self.assertRaises(exceptions.BadRequest, self._migrate_server_to,101                          server_id, target_host)102        self.assertEqual('ACTIVE', self._get_server_status(server_id))103    @testtools.skipIf(not CONF.compute_feature_enabled.live_migration or not104                      CONF.compute_feature_enabled.105                      block_migration_for_live_migration,106                      'Block Live migration not available')107    @testtools.skipIf(not CONF.compute_feature_enabled.108                      block_migrate_cinder_iscsi,109                      'Block Live migration not configured for iSCSI')110    @attr(type='gate')111    def test_iscsi_volume(self):112        # Live block migrate an instance to another host113        if len(self._get_compute_hostnames()) < 2:114            raise self.skipTest(115                "Less than 2 compute nodes, skipping migration test.")116        server_id = self._get_an_active_server()117        actual_host = self._get_host_for_server(server_id)118        target_host = self._get_host_other_than(actual_host)119        resp, volume = self.volumes_client.create_volume(1,120                                                         display_name='test')121        self.volumes_client.wait_for_volume_status(volume['id'],122                                                   'available')123        self.addCleanup(self._volume_clean_up, server_id, volume['id'])124        # Attach the volume to the server125        self.servers_client.attach_volume(server_id, volume['id'],126                                          device='/dev/xvdb')127        self.volumes_client.wait_for_volume_status(volume['id'], 'in-use')128        self._migrate_server_to(server_id, target_host)129        self.servers_client.wait_for_server_status(server_id, 'ACTIVE')130        self.assertEqual(target_host, self._get_host_for_server(server_id))131    @classmethod132    def tearDownClass(cls):133        for server_id in cls.created_server_ids:134            cls.servers_client.delete_server(server_id)135        super(LiveBlockMigrationTestJSON, cls).tearDownClass()136class LiveBlockMigrationTestXML(LiveBlockMigrationTestJSON):137    _host_key = (138        '{http://docs.openstack.org/compute/ext/extended_status/api/v1.1}host')...

test_live_migration_negative.py

Source:test_live_migration_negative.py

...24    def skip_checks(cls):25        super(LiveMigrationNegativeTest, cls).skip_checks()26        if not CONF.compute_feature_enabled.live_migration:27            raise cls.skipException("Live migration is not enabled")28    def _migrate_server_to(self, server_id, dest_host):29        bmflm = CONF.compute_feature_enabled.block_migration_for_live_migration30        kwargs = dict(host=dest_host, block_migration=bmflm)31        if self.is_requested_microversion_compatible('2.24'):32            kwargs['disk_over_commit'] = False33        self.admin_servers_client.live_migrate_server(server_id, **kwargs)34    @decorators.attr(type=['negative'])35    @decorators.idempotent_id('7fb7856e-ae92-44c9-861a-af62d7830bcb')36    def test_invalid_host_for_migration(self):37        # Migrating to an invalid host should not change the status38        target_host = data_utils.rand_name('host')39        server = self.create_test_server(wait_until="ACTIVE")40        self.assertRaises(lib_exc.BadRequest, self._migrate_server_to,41                          server['id'], target_host)42        waiters.wait_for_server_status(self.servers_client, server['id'],...

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