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How to use _boot_vm_with_min_bw method in tempest

Best Python code snippet using tempest_python

test_network_qos_placement.py

Source:test_network_qos_placement.py

...157                                  self.PLACEMENT_MAX_INT))158        if len(alloc_candidates['provider_summaries']) != 0:159            self.fail('For %s:%s there should be no available candidate!' %160                      (self.INGRESS_RESOURCE_CLASS, self.PLACEMENT_MAX_INT))161    def _boot_vm_with_min_bw(self, qos_policy_id, status='ACTIVE'):162        wait_until = (None if status == 'ERROR' else status)163        port = self.create_port(164            self.prov_network['id'], qos_policy_id=qos_policy_id)165        server = self.create_server(networks=[{'port': port['id']}],166                                    wait_until=wait_until)167        waiters.wait_for_server_status(168            client=self.servers_client, server_id=server['id'],169            status=status, ready_wait=False, raise_on_error=False)170        return server, port171    def _assert_allocation_is_as_expected(172        self, consumer, port_ids, min_kbps=SMALLEST_POSSIBLE_BW,173        expected_rc=NetworkQoSPlacementTestBase.INGRESS_RESOURCE_CLASS,174    ):175        allocations = self.placement_client.list_allocations(176            consumer)['allocations']177        self.assertGreater(len(allocations), 0)178        bw_resource_in_alloc = False179        allocation_rp = None180        for rp, resources in allocations.items():181            if expected_rc in resources['resources']:182                self.assertEqual(183                    min_kbps,184                    resources['resources'][expected_rc])185                bw_resource_in_alloc = True186                allocation_rp = rp187        if min_kbps:188            self.assertTrue(189                bw_resource_in_alloc,190                f"expected {min_kbps} bandwidth allocation from {expected_rc} "191                f"but instance has allocation {allocations} instead."192            )193            # Check binding_profile of the port is not empty and equals with194            # the rp uuid195            for port_id in port_ids:196                port = self.os_admin.ports_client.show_port(port_id)197                port_binding_alloc = port['port']['binding:profile'][198                    'allocation']199                # NOTE(gibi): the format of the allocation key depends on the200                # existence of port-resource-request-groups API extension.201                # TODO(gibi): drop the else branch once tempest does not need202                # to support Xena release any more.203                if utils.is_extension_enabled(204                        'port-resource-request-groups', 'network'):205                    self.assertEqual(206                        {allocation_rp},207                        set(port_binding_alloc.values()))208                else:209                    self.assertEqual(allocation_rp, port_binding_alloc)210    @decorators.idempotent_id('78625d92-212c-400e-8695-dd51706858b8')211    @utils.services('compute', 'network')212    def test_qos_min_bw_allocation_basic(self):213        """"Basic scenario with QoS min bw allocation in placement.214        Steps:215        * Create prerequisites:216        ** VLAN type provider network with subnet.217        ** valid QoS policy with minimum bandwidth rule with min_kbps=1218        (This is a simplification to skip the checks in placement for219        detecting the resource provider tree and inventories, as if220        bandwidth resource is available 1 kbs will be available).221        ** invalid QoS policy with minimum bandwidth rule with222        min_kbs=max integer from placement (this is a simplification again223        to avoid detection of RP tress and inventories, as placement will224        reject such big allocation).225        * Create port with valid QoS policy, and boot VM with that, it should226        pass.227        * Create port with invalid QoS policy, and try to boot VM with that,228        it should fail.229        """230        self._create_network_and_qos_policies(self._create_qos_basic_policies)231        server1, valid_port = self._boot_vm_with_min_bw(232            qos_policy_id=self.qos_policy_valid['id'])233        self._assert_allocation_is_as_expected(server1['id'],234                                               [valid_port['id']])235        server2, not_valid_port = self._boot_vm_with_min_bw(236            self.qos_policy_not_valid['id'], status='ERROR')237        allocations = self.placement_client.list_allocations(server2['id'])238        self.assertEqual(0, len(allocations['allocations']))239        server2 = self.servers_client.show_server(server2['id'])240        self.assertIn('fault', server2['server'])241        self.assertIn('No valid host', server2['server']['fault']['message'])242        # Check that binding_profile of the port is empty243        port = self.os_admin.ports_client.show_port(not_valid_port['id'])244        self.assertEqual(0, len(port['port']['binding:profile']))245    @decorators.idempotent_id('8a98150c-a506-49a5-96c6-73a5e7b04ada')246    @testtools.skipUnless(CONF.compute_feature_enabled.cold_migration,247                          'Cold migration is not available.')248    @testtools.skipUnless(CONF.compute.min_compute_nodes > 1,249                          'Less than 2 compute nodes, skipping multinode '250                          'tests.')251    @utils.services('compute', 'network')252    def test_migrate_with_qos_min_bw_allocation(self):253        """Scenario to migrate VM with QoS min bw allocation in placement254        Boot a VM like in test_qos_min_bw_allocation_basic, do the same255        checks, and256        * migrate the server257        * confirm the resize, if the VM state is VERIFY_RESIZE258        * If the VM goes to ACTIVE state check that allocations are as259        expected.260        """261        self._create_network_and_qos_policies(self._create_qos_basic_policies)262        server, valid_port = self._boot_vm_with_min_bw(263            qos_policy_id=self.qos_policy_valid['id'])264        self._assert_allocation_is_as_expected(server['id'],265                                               [valid_port['id']])266        self.os_adm.servers_client.migrate_server(server_id=server['id'])267        waiters.wait_for_server_status(268            client=self.servers_client, server_id=server['id'],269            status='VERIFY_RESIZE', ready_wait=False, raise_on_error=False)270        # TODO(lajoskatona): Check that the allocations are ok for the271        #  migration?272        self._assert_allocation_is_as_expected(server['id'],273                                               [valid_port['id']])274        self.os_adm.servers_client.confirm_resize_server(275            server_id=server['id'])276        waiters.wait_for_server_status(277            client=self.servers_client, server_id=server['id'],278            status='ACTIVE', ready_wait=False, raise_on_error=True)279        self._assert_allocation_is_as_expected(server['id'],280                                               [valid_port['id']])281    @decorators.idempotent_id('c29e7fd3-035d-4993-880f-70819847683f')282    @testtools.skipUnless(CONF.compute_feature_enabled.resize,283                          'Resize not available.')284    @utils.services('compute', 'network')285    def test_resize_with_qos_min_bw_allocation(self):286        """Scenario to resize VM with QoS min bw allocation in placement.287        Boot a VM like in test_qos_min_bw_allocation_basic, do the same288        checks, and289        * resize the server with new flavor290        * confirm the resize, if the VM state is VERIFY_RESIZE291        * If the VM goes to ACTIVE state check that allocations are as292        expected.293        """294        self._create_network_and_qos_policies(self._create_qos_basic_policies)295        server, valid_port = self._boot_vm_with_min_bw(296            qos_policy_id=self.qos_policy_valid['id'])297        self._assert_allocation_is_as_expected(server['id'],298                                               [valid_port['id']])299        new_flavor = self._create_flavor_to_resize_to()300        self.servers_client.resize_server(301            server_id=server['id'], flavor_ref=new_flavor['id'])302        waiters.wait_for_server_status(303            client=self.servers_client, server_id=server['id'],304            status='VERIFY_RESIZE', ready_wait=False, raise_on_error=False)305        # TODO(lajoskatona): Check that the allocations are ok for the306        #  migration?307        self._assert_allocation_is_as_expected(server['id'],308                                               [valid_port['id']])309        self.servers_client.confirm_resize_server(server_id=server['id'])...

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