196 lines
8.4 KiB
Python
196 lines
8.4 KiB
Python
# Copyright (c) 2019 Ericsson
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from oslo_log import log as logging
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from tempest.common import utils
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from tempest.common import waiters
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from tempest import config
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from tempest.lib.common.utils import data_utils
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from tempest.lib.common.utils import test_utils
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from tempest.lib import decorators
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from tempest.scenario import manager
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LOG = logging.getLogger(__name__)
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CONF = config.CONF
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class MinBwAllocationPlacementTest(manager.NetworkScenarioTest):
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credentials = ['primary', 'admin']
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required_extensions = ['port-resource-request',
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'qos',
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'qos-bw-minimum-ingress']
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# The feature QoS minimum bandwidth allocation in Placement API depends on
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# Granular resource requests to GET /allocation_candidates and Support
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# allocation candidates with nested resource providers features in
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# Placement (see: https://specs.openstack.org/openstack/nova-specs/specs/
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# stein/approved/bandwidth-resource-provider.html#rest-api-impact) and this
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# means that the minimum placement microversion is 1.29
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placement_min_microversion = '1.29'
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placement_max_microversion = 'latest'
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# Nova rejects to boot VM with port which has resource_request field, below
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# microversion 2.72
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compute_min_microversion = '2.72'
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compute_max_microversion = 'latest'
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INGRESS_RESOURCE_CLASS = "NET_BW_IGR_KILOBIT_PER_SEC"
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INGRESS_DIRECTION = 'ingress'
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SMALLEST_POSSIBLE_BW = 1
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# For any realistic inventory value (that is inventory != MAX_INT) an
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# allocation candidate request of MAX_INT is expected to be rejected, see:
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# https://github.com/openstack/placement/blob/master/placement/
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# db/constants.py#L16
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PLACEMENT_MAX_INT = 0x7FFFFFFF
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@classmethod
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def setup_clients(cls):
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super(MinBwAllocationPlacementTest, cls).setup_clients()
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cls.placement_client = cls.os_admin.placement_client
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cls.networks_client = cls.os_admin.networks_client
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cls.subnets_client = cls.os_admin.subnets_client
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cls.routers_client = cls.os_adm.routers_client
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cls.qos_client = cls.os_admin.qos_client
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cls.qos_min_bw_client = cls.os_admin.qos_min_bw_client
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@classmethod
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def skip_checks(cls):
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super(MinBwAllocationPlacementTest, cls).skip_checks()
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if not CONF.network_feature_enabled.qos_placement_physnet:
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msg = "Skipped as no physnet is available in config for " \
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"placement based QoS allocation."
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raise cls.skipException(msg)
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def _create_policy_and_min_bw_rule(self, name_prefix, min_kbps):
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policy = self.qos_client.create_qos_policy(
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name=data_utils.rand_name(name_prefix),
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shared=True)['policy']
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self.addCleanup(test_utils.call_and_ignore_notfound_exc,
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self.qos_client.delete_qos_policy, policy['id'])
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rule = self.qos_min_bw_client.create_minimum_bandwidth_rule(
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policy['id'],
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**{
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'min_kbps': min_kbps,
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'direction': self.INGRESS_DIRECTION
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})['minimum_bandwidth_rule']
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self.addCleanup(
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test_utils.call_and_ignore_notfound_exc,
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self.qos_min_bw_client.delete_minimum_bandwidth_rule, policy['id'],
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rule['id'])
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return policy
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def _create_qos_policies(self):
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self.qos_policy_valid = self._create_policy_and_min_bw_rule(
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name_prefix='test_policy_valid',
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min_kbps=self.SMALLEST_POSSIBLE_BW)
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self.qos_policy_not_valid = self._create_policy_and_min_bw_rule(
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name_prefix='test_policy_not_valid',
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min_kbps=self.PLACEMENT_MAX_INT)
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def _create_network_and_qos_policies(self):
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physnet_name = CONF.network_feature_enabled.qos_placement_physnet
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base_segm = \
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CONF.network_feature_enabled.provider_net_base_segmentation_id
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self.prov_network, _, _ = self.create_networks(
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networks_client=self.networks_client,
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routers_client=self.routers_client,
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subnets_client=self.subnets_client,
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**{
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'shared': True,
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'provider:network_type': 'vlan',
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'provider:physical_network': physnet_name,
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'provider:segmentation_id': base_segm
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})
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self._create_qos_policies()
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def _check_if_allocation_is_possible(self):
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alloc_candidates = self.placement_client.list_allocation_candidates(
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resources1='%s:%s' % (self.INGRESS_RESOURCE_CLASS,
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self.SMALLEST_POSSIBLE_BW))
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if len(alloc_candidates['provider_summaries']) == 0:
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self.fail('No allocation candidates are available for %s:%s' %
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(self.INGRESS_RESOURCE_CLASS, self.SMALLEST_POSSIBLE_BW))
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# Just to be sure check with impossible high (placement max_int),
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# allocation
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alloc_candidates = self.placement_client.list_allocation_candidates(
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resources1='%s:%s' % (self.INGRESS_RESOURCE_CLASS,
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self.PLACEMENT_MAX_INT))
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if len(alloc_candidates['provider_summaries']) != 0:
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self.fail('For %s:%s there should be no available candidate!' %
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(self.INGRESS_RESOURCE_CLASS, self.PLACEMENT_MAX_INT))
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@decorators.idempotent_id('78625d92-212c-400e-8695-dd51706858b8')
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@decorators.attr(type='slow')
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@utils.services('compute', 'network')
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def test_qos_min_bw_allocation_basic(self):
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""""Basic scenario with QoS min bw allocation in placement.
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Steps:
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* Create prerequisites:
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** VLAN type provider network with subnet.
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** valid QoS policy with minimum bandwidth rule with min_kbps=1
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(This is a simplification to skip the checks in placement for
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detecting the resource provider tree and inventories, as if
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bandwidth resource is available 1 kbs will be available).
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** invalid QoS policy with minimum bandwidth rule with
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min_kbs=max integer from placement (this is a simplification again
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to avoid detection of RP tress and inventories, as placement will
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reject such big allocation).
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* Create port with valid QoS policy, and boot VM with that, it should
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pass.
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* Create port with invalid QoS policy, and try to boot VM with that,
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it should fail.
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"""
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self._check_if_allocation_is_possible()
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self._create_network_and_qos_policies()
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valid_port = self.create_port(
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self.prov_network['id'], qos_policy_id=self.qos_policy_valid['id'])
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server1 = self.create_server(
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networks=[{'port': valid_port['id']}])
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allocations = self.placement_client.list_allocations(server1['id'])
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self.assertGreater(len(allocations['allocations']), 0)
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bw_resource_in_alloc = False
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for rp, resources in allocations['allocations'].items():
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if self.INGRESS_RESOURCE_CLASS in resources['resources']:
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bw_resource_in_alloc = True
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self.assertTrue(bw_resource_in_alloc)
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# boot another vm with max int bandwidth
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not_valid_port = self.create_port(
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self.prov_network['id'],
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qos_policy_id=self.qos_policy_not_valid['id'])
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server2 = self.create_server(
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wait_until=None,
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networks=[{'port': not_valid_port['id']}])
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waiters.wait_for_server_status(
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client=self.os_primary.servers_client, server_id=server2['id'],
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status='ERROR', ready_wait=False, raise_on_error=False)
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allocations = self.placement_client.list_allocations(server2['id'])
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self.assertEqual(0, len(allocations['allocations']))
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server2 = self.servers_client.show_server(server2['id'])
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self.assertIn('fault', server2['server'])
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self.assertIn('No valid host', server2['server']['fault']['message'])
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