135 lines
5.9 KiB
Python
135 lines
5.9 KiB
Python
# Copyright 2016 Red Hat, Inc.
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# All Rights Reserved.
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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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import netaddr
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from tempest.common import utils
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from tempest.common import waiters
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from tempest.lib import decorators
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from neutron.tests.tempest.common import ssh
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from neutron.tests.tempest import config
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from neutron.tests.tempest.scenario import base
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from neutron.tests.tempest.scenario import constants
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from neutron_lib.api.definitions import provider_net
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CONF = config.CONF
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class NetworkMtuBaseTest(base.BaseTempestTestCase):
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credentials = ['primary', 'admin']
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servers = []
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networks = []
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@classmethod
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def skip_checks(cls):
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super(NetworkMtuBaseTest, cls).skip_checks()
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if ("vxlan" not in
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config.CONF.neutron_plugin_options.available_type_drivers
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or "gre" not in
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config.CONF.neutron_plugin_options.available_type_drivers):
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raise cls.skipException("GRE or VXLAN type_driver is not enabled")
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@classmethod
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@utils.requires_ext(extension=provider_net.ALIAS, service="network")
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def resource_setup(cls):
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super(NetworkMtuBaseTest, cls).resource_setup()
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# setup basic topology for servers we can log into it
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cls.router = cls.create_router_by_client()
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cls.keypair = cls.create_keypair()
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cls.secgroup = cls.os_primary.network_client.create_security_group(
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name='secgroup_mtu')
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cls.security_groups.append(cls.secgroup['security_group'])
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cls.create_loginable_secgroup_rule(
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secgroup_id=cls.secgroup['security_group']['id'])
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cls.create_pingable_secgroup_rule(
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secgroup_id=cls.secgroup['security_group']['id'])
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def _create_setup(self):
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self.admin_client = self.os_admin.network_client
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net_kwargs = {'tenant_id': self.client.tenant_id}
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for sub, net_type in (
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('10.100.0.0/16', 'vxlan'), ('10.200.0.0/16', 'gre')):
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net_kwargs['name'] = '-'.join([net_type, 'net'])
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net_kwargs['provider:network_type'] = net_type
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network = self.admin_client.create_network(**net_kwargs)[
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'network']
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self.networks.append(network)
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self.addCleanup(self.admin_client.delete_network, network['id'])
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cidr = netaddr.IPNetwork(sub)
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subnet = self.create_subnet(network, cidr=cidr)
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self.create_router_interface(self.router['id'], subnet['id'])
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self.addCleanup(self.client.remove_router_interface_with_subnet_id,
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self.router['id'], subnet['id'])
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# check that MTUs are different for 2 networks
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self.assertNotEqual(self.networks[0]['mtu'], self.networks[1]['mtu'])
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self.networks.sort(key=lambda net: net['mtu'])
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server1, fip1 = self.create_pingable_vm(self.networks[0])
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server_ssh_client1 = ssh.Client(
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self.floating_ips[0]['floating_ip_address'],
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CONF.validation.image_ssh_user,
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pkey=self.keypair['private_key'])
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server2, fip2 = self.create_pingable_vm(self.networks[1])
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server_ssh_client2 = ssh.Client(
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self.floating_ips[0]['floating_ip_address'],
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CONF.validation.image_ssh_user,
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pkey=self.keypair['private_key'])
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for fip in (fip1, fip2):
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self.check_connectivity(fip['floating_ip_address'],
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CONF.validation.image_ssh_user,
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self.keypair['private_key'])
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return server_ssh_client1, fip1, server_ssh_client2, fip2
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def create_pingable_vm(self, net):
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server = self.create_server(
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flavor_ref=CONF.compute.flavor_ref,
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image_ref=CONF.compute.image_ref,
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key_name=self.keypair['name'],
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networks=[{'uuid': net['id']}],
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security_groups=[{'name': self.secgroup[
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'security_group']['name']}])
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waiters.wait_for_server_status(
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self.os_primary.servers_client, server['server']['id'],
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constants.SERVER_STATUS_ACTIVE)
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port = self.client.list_ports(
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network_id=net['id'], device_id=server['server']['id'])['ports'][0]
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fip = self.create_and_associate_floatingip(port['id'])
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return server, fip
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@decorators.idempotent_id('3d73ec1a-2ec6-45a9-b0f8-04a273d9d344')
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def test_connectivity_min_max_mtu(self):
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server_ssh_client, _, _, fip2 = self._create_setup()
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# ping with min mtu of 2 networks succeeds even when
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# fragmentation is disabled
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self.check_remote_connectivity(
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server_ssh_client, fip2['fixed_ip_address'],
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mtu=self.networks[0]['mtu'], fragmentation=False)
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# ping with the size above min mtu of 2 networks
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# fails when fragmentation is disabled
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self.check_remote_connectivity(
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server_ssh_client, fip2['fixed_ip_address'], should_succeed=False,
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mtu=self.networks[0]['mtu'] + 1, fragmentation=False)
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# ping with max mtu of 2 networks succeeds when
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# fragmentation is enabled
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self.check_remote_connectivity(
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server_ssh_client, fip2['fixed_ip_address'],
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mtu=self.networks[1]['mtu'])
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# ping with max mtu of 2 networks fails when fragmentation is disabled
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self.check_remote_connectivity(
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server_ssh_client, fip2['fixed_ip_address'], should_succeed=False,
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mtu=self.networks[1]['mtu'], fragmentation=False)
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