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How to use delete_limit_bandwidth_rule method in tempest

Best Python code snippet using tempest_python

qos_manager.py

Source:qos_manager.py

1# Copyright 2018 Red Hat, Inc.2# All Rights Reserved.3#4#    Licensed under the Apache License, Version 2.0 (the "License"); you may5#    not use this file except in compliance with the License. You may obtain6#    a copy of the License at7#8#         http://www.apache.org/licenses/LICENSE-2.09#10#    Unless required by applicable law or agreed to in writing, software11#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT12#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the13#    License for the specific language governing permissions and limitations14#    under the License.15import re16import threading17from enum import IntEnum18from math import ceil19from nfv_tempest_plugin.tests.common import shell_utilities as shell_utils20from oslo_log import log21from tempest import config22from tempest.lib.common.utils import data_utils23from tempest.lib.common.utils import test_utils24CONF = config.CONF25LOG = log.getLogger('{} [-] nfv_plugin_test'.format(__name__))26class QoSManagerMixin(object):27    class Servers(IntEnum):28        CLIENT_1 = 029        CLIENT_2 = 130        SERVER = 231    # Unit conversion from iperf report to os qos units [10^6]32    KBYTES_TO_MBITS = 10 ** 633    LOG_5102 = "/tmp/listen-5102.txt"34    LOG_5101 = "/tmp/listen-5101.txt"35    def create_network_qos_policy(self, namestart='qos-policy'):36        """Creates a network QoS policy"""37        qos_client = self.os_admin.qos_client38        result = qos_client.create_qos_policy(39            name=data_utils.rand_name(namestart))40        self.assertIsNotNone(result, 'Unable to create policy')41        qos_policy = result['policy']42        self.addCleanup(test_utils.call_and_ignore_notfound_exc,43                        qos_client.delete_qos_policy,44                        qos_policy['id'])45        return qos_policy46    def create_min_bw_qos_rule(self, policy_id=None, min_kbps=None,47                               direction='egress'):48        """Creates a minimum bandwidth QoS rule49        NOTE: Not all kernel versions support minimum bandwidth for all50        NIC drivers.51        Only egress (guest --> outside) traffic is currently supported.52        :param policy_id53        :param min_kbps: Minimum kbps bandwidth to apply to rule54        :param direction: Traffic direction that the rule applies to55        """56        SUPPORTED_DIRECTIONS = 'egress'57        if not policy_id:58            self.assertNotEmpty(self.qos_policy_groups,59                                'Unable to create_min_bw_qos_rule '60                                'self.qos_policy_groups is Empty')61            policy_id = self.qos_policy_groups[0]['id']62        if direction not in SUPPORTED_DIRECTIONS:63            raise ValueError('{d} is not a supported direction, supported '64                             'directions: {s_p}'65                             .format(d=direction,66                                     s_p=SUPPORTED_DIRECTIONS.join(', ')))67        qos_min_bw_client = self.os_admin_v2.qos_minimum_bandwidth_rules_client68        result = qos_min_bw_client.create_minimum_bandwidth_rule(69            policy_id, **{'min_kbps': min_kbps, 'direction': direction})70        self.assertIsNotNone(result, 'Unable to create minimum bandwidth '71                                     'QoS rule')72        qos_rule = result['minimum_bandwidth_rule']73        self.addCleanup(74            test_utils.call_and_ignore_notfound_exc,75            qos_min_bw_client.delete_minimum_bandwidth_rule, policy_id,76            qos_rule['id'])77    def create_max_bw_qos_rule(self, policy_id=None, max_kbps=None,78                               max_burst_kbps=None,79                               direction='egress'):80        """Creates a maximum bandwidth QoS rule81        Only egress (guest --> outside) traffic is currently supported.82        :param policy_id83        :param max_kbps: Maximum kbps bandwidth to apply to rule84        :param max_burst_kbps: max burst bandwidth to apply to rule85        :param direction: Traffic direction that the rule applies to86        """87        SUPPORTED_DIRECTIONS = 'egress'88        if not policy_id:89            self.assertNotEmpty(self.qos_policy_groups,90                                'Unable to create_max_bw_qos_rule '91                                'self.qos_policy_groups is Empty')92            policy_id = self.qos_policy_groups[0]['id']93        if direction not in SUPPORTED_DIRECTIONS:94            raise ValueError('{d} is not a supported direction, supported '95                             'directions: {s_p}'96                             .format(d=direction,97                                     s_p=SUPPORTED_DIRECTIONS.join(', ')))98        bw_rules = {'direction': direction,99                    'max_kbps': max_kbps,100                    'max_burst_kbps': max_burst_kbps}101        qos_max_bw_client = self.os_admin_v2.qos_limit_bandwidth_rules_client102        result = qos_max_bw_client.create_limit_bandwidth_rule(policy_id,103                                                               **bw_rules)104        self.assertIsNotNone(result, 'Unable to create maximum bandwidth '105                                     'QoS rule')106        qos_rule = result['bandwidth_limit_rule']107        self.addCleanup(108            test_utils.call_and_ignore_notfound_exc,109            qos_max_bw_client.delete_limit_bandwidth_rule, policy_id,110            qos_rule['id'])111    def create_qos_policy_with_rules(self, use_default=True, **kwargs):112        """Create_qos_policy with rules113        :param kwargs:114            kwargs['max_kbps']: parameter indicates maximum qos requested115            kwargs['min_kbps']: parameter indicates minimum qos requested116        :param use_default: parameter use self.qos_policy_groups for the test117        """118        qos_policy_groups = \119            self.create_network_qos_policy()120        if use_default:121            self.qos_policy_groups = qos_policy_groups122            self.assertNotEmpty(self.qos_policy_groups,123                                'Unable to qos policy '124                                'self.qos_policy_groups is Empty')125        if 'min_kbps' in kwargs:126            self.create_min_bw_qos_rule(127                policy_id=qos_policy_groups['id'],128                min_kbps=kwargs['min_kbps'])129            kwargs.pop('min_kbps')130        if 'max_kbps' in kwargs:131            self.create_max_bw_qos_rule(132                policy_id=qos_policy_groups['id'],133                **kwargs)134        return qos_policy_groups135    def check_qos_attached_to_guest(self, server, min_bw=False):136        """Check QoS attachment to guest137        This method checks if QoS is applied to an interface on hypervisor138        that is attached to guest139        :param server140        :param min_bw: Check for minimum bandwidth QoS141        """142        # Initialize parameters143        found_qos = False144        interface_data = shell_utils. \145            get_interfaces_from_overcloud_node(server['hypervisor_ip'])146        ports_client = self.os_admin.ports_client147        ports = ports_client.list_ports(device_id=server['id'])148        # Iterate over ports149        for port in ports['ports']:150            # If port has a QoS policy151            if port['qos_policy_id']:152                found_qos = True153                # Construct regular expression to locate port's MAC address154                re_string = r'.*{}.*'.format(port['mac_address'])155                line = re.search(re_string, interface_data)156                # Failed to locate MAC address on hypervisor157                if not line:158                    raise ValueError("Failed to locate interface with MAC "159                                     "'{}' on hypervisor"160                                     .format(port['mac_address']))161                line = line.group(0)162                # Check minimum bandwidth QoS163                if min_bw:164                    qos_min_bw_client = self.os_admin.qos_min_bw_client165                    min_qos_rule = \166                        qos_min_bw_client.list_minimum_bandwidth_rules(167                            port['qos_policy_id'])['minimum_bandwidth_rules']168                    # OpenStack API displays the size in Kbps169                    min_kbps = min_qos_rule[0]['min_kbps']170                    # Construct string to match Linux operating system171                    min_mbps = str(int(ceil(min_kbps / 1000)))172                    min_mbps = '{}Mbps'.format(min_mbps)173                    # Linux operating system displays the size in Mbps174                    qos = re.search(r'min_tx_rate \w+', line)175                    # Failed to locate min QoS176                    if not qos:177                        raise ValueError("Failed to dicover min QoS for "178                                         "interface with MAC '{}'"179                                         .format(port['mac_address']))180                    qos = qos.group(0)181                    # Filter QoS number182                    qos = qos.replace('min_tx_rate ', '')183                    self.assertEqual(min_mbps, qos)184        if not found_qos:185            raise ValueError('No QoS policies were applied to ports')186    def run_iperf_test(self, qos_policies=[], servers=[], key_pair=[],187                       vnic_type='direct'):188        """run_iperf_test189        This method receive server list, and prepare machines for iperf190        and run test commands in server and clients191        :param qos_policies qos policy created for servers192        :param servers servers list, at least 3193        :param key_pair servers key pairs194        """195        srv = QoSManagerMixin.Servers196        servers_ports_map = \197            [self.os_admin.ports_client.list_ports(198                device_id=server['id']) for server in self.servers]199        # Find machines ports based on type200        tested_ports = [shell_utils.find_vm_interface(201            ports, vnic_type=vnic_type) for ports in servers_ports_map]202        # Bind to iperf server ip_addr203        ip_addr = tested_ports[srv.SERVER][1]204        # Set pors with QoS205        LOG.info('Update client ports with QoS policies...')206        # Assume server is the last server index 2,207        # In case one policy parsed, CLIENT_1 is the tested port208        [self.update_port(209            tested_ports[i][0],210            **{'qos_policy_id': qos_policies[i]['id']})211            for i in range((len(self.servers) - 1)212                           and len(qos_policies))]213        LOG.info('Run iperf server on server3...')214        ssh_dest = self.get_remote_client(servers[srv.SERVER]['fip'],215                                          username=self.instance_user,216                                          private_key=key_pair[217                                              'private_key'])218        server_command = "sudo yum install iperf -y; "219        log_5102 = QoSManagerMixin.LOG_5102220        log_5101 = QoSManagerMixin.LOG_5101221        server_command += \222            "(nohup iperf -s -B {} -p 5102 -i 10 > {} 2>&1)& ".format(223                ip_addr, log_5102)224        server_command += \225            "(nohup iperf -s -B {} -p 5101 -i 10 > {} 2>&1)& ".format(226                ip_addr, log_5101)227        LOG.info('Receive iperf traffic from Server3...')228        ssh_dest.exec_command(server_command)229        install_iperf_command = "sudo yum install iperf -y"230        ssh_source1 = self. \231            get_remote_client(servers[srv.CLIENT_1]['fip'],232                              username=self.instance_user,233                              private_key=key_pair['private_key'])234        LOG.info('Installing iperf on Server1...')235        ssh_source1.exec_command(install_iperf_command)236        ssh_source2 = self. \237            get_remote_client(servers[srv.CLIENT_2]['fip'],238                              username=self.instance_user,239                              private_key=key_pair['private_key'])240        LOG.info('Installing iperf on Server2...')241        ssh_source2.exec_command(install_iperf_command)242        # must run in background, to check guaranteed min/bw for client1243        # Running vm CLIENT_2 initially, since it serves as one helper244        # nohup iperf -c 40.0.0.130 -T s2 -p 5101 -t  2>&1 &245        # (nohup iperf -c 40.0.0.164 -T s2 -p 5101 -t 60 >246        # /tmp/iperf.out 2>&1)&"247        threads = []248        threads.append(threading.Thread(target=ssh_source1.exec_command,249                                        args=("iperf -c {} -T s1 -p {} -t 120 "250                                              " > /tmp/iperf.out 2>&1"251                                              .format(ip_addr, '5101'),)))252        threads.append(threading.Thread(target=ssh_source2.exec_command,253                                        args=("iperf -c {} -T s1 -p {} -t 120 "254                                              " > /tmp/iperf.out 2>&1"255                                              .format(ip_addr, '5102'),)))256        for theread in threads:257            theread.start()258        LOG.info('Waiting for all iperf threads to complete')259        for theread in threads:260            theread.join()261    def collect_iperf_results(self, qos_rules_list=[],262                              servers=[], key_pair=[]):263        """collect_iperf_results264        This method receive server list, ssh to iperf server and collect265        iperf reports and compare it to QoS rules created for clients ports266        :param qos_rules_list qos rules list fpr tested ports267        :param servers servers list, at least 3268        :param key_pair servers key pairs269        """270        srv = QoSManagerMixin.Servers271        log_files = [QoSManagerMixin.LOG_5101, QoSManagerMixin.LOG_5102]272        # Run grep command over iperf server to verify BW is OK273        # File format is as following274        # [  4]  0.0-10.0 sec  4.76 GBytes  4.09 Gbits/sec275        # [  4] 10.0-20.0 sec  4.76 GBytes  4.09 Gbits/sec276        # cat /tmp/listen-5101.txt | while read line ; do277        # if [[ $line =~ [[:space:]]([0-9]{1,2}.[0-9]{1,2})[[:space:]]Gbits ]];278        # then echo ${BASH_REMATCH[1]}; fi ; done279        LOG.info('Collect iperf logs from iperf server, server3...')280        command = r"cat {} | while read line ;do  "281        command += r"if [[ \"$line\" =~ [[:space:]]"282        command += r"([0-9]{1,2}\.[0-9]{1,2})[[:space:]]Gbits ]]; "283        command += r"then echo \"${BASH_REMATCH[1]}\"; fi; done| sort| uniq"284        # Receive result with number285        ssh_dest = self.get_remote_client(servers[srv.SERVER]['fip'],286                                          username=self.instance_user,287                                          private_key=key_pair[288                                              'private_key'])289        # Assert result290        for index in range(srv.SERVER):291            # If Default QoS, such as min_bw check only srv.CLIENT_1292            if len(self.qos_policy_groups) > 0 and index == srv.CLIENT_2:293                break294            out_testing = ssh_dest. \295                exec_command(command.replace('{}', log_files[index]))296            iperf_rep = \297                [i for i in (out_testing.encode('utf8')).split() if i != '']298            self.assertNotEmpty(299                iperf_rep, "Please check QoS definitions, iperf result for "300                "in file {} is empty or low".format(log_files[index]))301            # Apply average for result302            res = [float(i.decode("utf-8").303                         replace('"', '')) for i in iperf_rep]304            rep = sum(res) / len(res)305            qos_type = 'max_kbps'306            # In case of min_bw only one policy is set307            if 'min_kbps' in qos_rules_list[srv(index)]:308                qos_type = 'min_kbps'309            self.calculate_deviation(test_type=qos_type, result_number=rep,310                                     rate_limit=qos_rules_list[311                                         srv(index)][qos_type])312    def calculate_deviation(self, test_type, rate_limit, result_number,313                            max_deviation_accepted=0.08):314        """Calculate deviation for a result number for a rate limit number315        Method supports two test types - max_kbps and min_kbps.316        For the max_kbps, the given number could be above the given rate limit317        within the accepted deviation number.318        For the min_kbps, the given number could be below the given rate limit319        within the accepted deviation number.320        :param test_type: One of two available test types - max_kbps/min_kbps321        :type test_type: str322        :param rate_limit: Limit rate for a given number. Depends on test type323        :type rate_limit: int324        :param result_number: A result number to calculate the deviation325        :type result_number: int326        :param max_deviation_accepted: Accepted deviation, defaults to 0.08327        :type max_deviation_accepted: float, optional328        """329        kbytes_to_mbits = QoSManagerMixin.KBYTES_TO_MBITS330        deviation = abs(result_number * kbytes_to_mbits / rate_limit - 1)331        err_msg = 'The number - {} deviates more than accepted deviation - {}'332        if test_type == "max_kbps" and (result_number * kbytes_to_mbits333                                        > rate_limit):334            self.assertLess(deviation, max_deviation_accepted,335                            err_msg.format(deviation, max_deviation_accepted))336        if test_type == "min_kbps" and (result_number * kbytes_to_mbits337                                        < rate_limit):338            self.assertLess(deviation, max_deviation_accepted,339                            err_msg.format(deviation, max_deviation_accepted))340        LOG.info('The test result number - {} with deviation - {}'341                 .format(result_number, deviation))...

test_qos_limit_bandwidth_rules_client.py

Source:test_qos_limit_bandwidth_rules_client.py

...86            qos_policy_id=self.FAKE_QOS_POLICY_ID,87            rule_id=self.FAKE_MAX_BW_RULE_ID88        )89    @decorators.idempotent_id('0a7c0964-e97b-11eb-aacb-74e5f9e2a801')90    def test_delete_limit_bandwidth_rule(self):91        self.check_service_client_function(92            self.qos_limit_bw_client.delete_limit_bandwidth_rule,93            "tempest.lib.common.rest_client.RestClient.delete",94            {},95            status=204,96            qos_policy_id=self.FAKE_QOS_POLICY_ID,97            rule_id=self.FAKE_MAX_BW_RULE_ID)98    @decorators.idempotent_id('08df88ae-e97d-11eb-aacb-74e5f9e2a801')99    def test_list_minimum_bandwidth_rules(self, bytes_body=False):100        self.check_service_client_function(101            self.qos_limit_bw_client.list_limit_bandwidth_rules,102            "tempest.lib.common.rest_client.RestClient.get",103            self.FAKE_MAX_BW_RULES,104            bytes_body,...

qos_limit_bandwidth_rules_client.py

Source:qos_limit_bandwidth_rules_client.py

...41        """42        uri = '/qos/policies/{}/bandwidth_limit_rules/{}'.format(43            qos_policy_id, rule_id)44        return self.show_resource(uri, **fields)45    def delete_limit_bandwidth_rule(self, qos_policy_id, rule_id):46        """Deletes a limit bandwidth rule for a QoS policy.47        For full list of available parameters, please refer to the official48        API reference:49        https://docs.openstack.org/api-ref/network/v2/index.html#delete-bandwidth-limit-rule50        """51        uri = '/qos/policies/{}/bandwidth_limit_rules/{}'.format(52            qos_policy_id, rule_id)53        return self.delete_resource(uri)54    def list_limit_bandwidth_rules(self, qos_policy_id, **filters):55        """Lists all limit bandwidth rules for a QoS policy.56        For full list of available parameters, please refer to the official57        API reference:58        https://docs.openstack.org/api-ref/network/v2/index.html#list-bandwidth-limit-rules-for-qos-policy59        """...

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