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base.py
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/
base.py
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# Copyright (C) 2018 Red Hat, Inc
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import copy
import io
import fixtures
import mock
from nova import conf
from nova.objects import fields as obj_fields
from nova.tests import fixtures as nova_fixtures
from nova.tests.functional import fixtures as func_fixtures
from nova.tests.functional import test_servers as base
from nova.tests.unit.virt.libvirt import fake_imagebackend
from nova.tests.unit.virt.libvirt import fakelibvirt
CONF = conf.CONF
class ServersTestBase(base.ServersTestBase):
ADDITIONAL_FILTERS = []
def setUp(self):
super(ServersTestBase, self).setUp()
# Replace libvirt with fakelibvirt
self.useFixture(fake_imagebackend.ImageBackendFixture())
self.useFixture(fixtures.MonkeyPatch(
'nova.virt.libvirt.driver.libvirt',
fakelibvirt))
self.useFixture(fixtures.MonkeyPatch(
'nova.virt.libvirt.host.libvirt',
fakelibvirt))
self.useFixture(fixtures.MonkeyPatch(
'nova.virt.libvirt.guest.libvirt',
fakelibvirt))
self.useFixture(fakelibvirt.FakeLibvirtFixture())
self.useFixture(func_fixtures.PlacementFixture())
self.useFixture(fixtures.MockPatch(
'nova.virt.libvirt.LibvirtDriver._create_image'))
self.useFixture(fixtures.MockPatch(
'nova.virt.libvirt.LibvirtDriver._get_local_gb_info',
return_value={'total': 128, 'used': 44, 'free': 84}))
self.useFixture(fixtures.MockPatch(
'nova.virt.libvirt.driver.libvirt_utils.is_valid_hostname',
return_value=True))
self.useFixture(fixtures.MockPatch(
'nova.virt.libvirt.driver.libvirt_utils.file_open',
side_effect=[io.BytesIO(b''), io.BytesIO(b'')]))
self.useFixture(fixtures.MockPatch(
'nova.privsep.utils.supports_direct_io',
return_value=True))
# Mock the 'get_connection' function, as we're going to need to provide
# custom capabilities for each test
_p = mock.patch('nova.virt.libvirt.host.Host.get_connection')
self.mock_conn = _p.start()
self.addCleanup(_p.stop)
# As above, mock the 'get_arch' function as we may need to provide
# different host architectures during some tests.
_a = mock.patch('nova.virt.libvirt.utils.get_arch')
self.mock_arch = _a.start()
# Default to X86_64
self.mock_arch.return_value = obj_fields.Architecture.X86_64
self.addCleanup(_a.stop)
def _setup_compute_service(self):
# NOTE(stephenfin): We don't start the compute service here as we wish
# to configure the host capabilities first. We instead start the
# service in the test
self.flags(compute_driver='libvirt.LibvirtDriver')
def _setup_scheduler_service(self):
enabled_filters = CONF.filter_scheduler.enabled_filters
enabled_filters += self.ADDITIONAL_FILTERS
self.flags(driver='filter_scheduler', group='scheduler')
self.flags(enabled_filters=enabled_filters, group='filter_scheduler')
return self.start_service('scheduler')
def _get_connection(self, host_info, pci_info=None,
libvirt_version=fakelibvirt.FAKE_LIBVIRT_VERSION,
mdev_info=None):
fake_connection = fakelibvirt.Connection(
'qemu:///system',
version=libvirt_version,
hv_version=fakelibvirt.FAKE_QEMU_VERSION,
host_info=host_info,
pci_info=pci_info,
mdev_info=mdev_info)
return fake_connection
class LibvirtNeutronFixture(nova_fixtures.NeutronFixture):
"""A custom variant of the stock neutron fixture with more networks.
There are three networks available: two l2 networks (one flat and one VLAN)
and one l3 network (VXLAN).
"""
network_1 = {
'id': '3cb9bc59-5699-4588-a4b1-b87f96708bc6',
'status': 'ACTIVE',
'subnets': [],
'name': 'physical-network-foo',
'admin_state_up': True,
'tenant_id': nova_fixtures.NeutronFixture.tenant_id,
'provider:physical_network': 'foo',
'provider:network_type': 'flat',
'provider:segmentation_id': None,
}
network_2 = network_1.copy()
network_2.update({
'id': 'a252b8cd-2d99-4e82-9a97-ec1217c496f5',
'name': 'physical-network-bar',
'provider:physical_network': 'bar',
'provider:network_type': 'vlan',
'provider:segmentation_id': 123,
})
network_3 = network_1.copy()
network_3.update({
'id': '877a79cc-295b-4b80-9606-092bf132931e',
'name': 'tunneled-network',
'provider:physical_network': None,
'provider:network_type': 'vxlan',
'provider:segmentation_id': 69,
})
network_4 = network_1.copy()
network_4.update({
'id': '1b70879f-fd00-411e-8ea9-143e7820e61d',
'name': 'private-network',
'shared': False,
'provider:physical_network': 'physnet4',
"provider:network_type": "vlan",
'provider:segmentation_id': 42,
})
subnet_1 = nova_fixtures.NeutronFixture.subnet_1.copy()
subnet_1.update({
'name': 'physical-subnet-foo',
})
subnet_2 = nova_fixtures.NeutronFixture.subnet_1.copy()
subnet_2.update({
'id': 'b4c13749-c002-47ed-bf42-8b1d44fa9ff2',
'name': 'physical-subnet-bar',
'network_id': network_2['id'],
})
subnet_3 = nova_fixtures.NeutronFixture.subnet_1.copy()
subnet_3.update({
'id': '4dacb20b-917f-4275-aa75-825894553442',
'name': 'tunneled-subnet',
'network_id': network_3['id'],
})
subnet_4 = nova_fixtures.NeutronFixture.subnet_1.copy()
subnet_4.update({
'id': '7cb343ec-6637-494c-89a1-8890eab7788e',
'name': 'physical-subnet-bar',
'network_id': network_4['id'],
})
network_1['subnets'] = [subnet_1]
network_2['subnets'] = [subnet_2]
network_3['subnets'] = [subnet_3]
network_4['subnets'] = [subnet_4]
network_1_port_2 = {
'id': 'f32582b5-8694-4be8-9a52-c5732f601c9d',
'network_id': network_1['id'],
'status': 'ACTIVE',
'mac_address': '71:ce:c7:8b:cd:dc',
'fixed_ips': [
{
'ip_address': '192.168.1.10',
'subnet_id': subnet_1['id']
}
],
'binding:vif_type': 'ovs',
'binding:vnic_type': 'normal',
}
network_1_port_3 = {
'id': '9c7580a0-8b01-41f3-ba07-a114709a4b74',
'network_id': network_1['id'],
'status': 'ACTIVE',
'mac_address': '71:ce:c7:2b:cd:dc',
'fixed_ips': [
{
'ip_address': '192.168.1.11',
'subnet_id': subnet_1['id']
}
],
'binding:vif_type': 'ovs',
'binding:vnic_type': 'normal',
}
network_2_port_1 = {
'id': '67d36444-6353-40f5-9e92-59346cf0dfda',
'network_id': network_2['id'],
'status': 'ACTIVE',
'mac_address': 'd2:0b:fd:d7:89:9b',
'fixed_ips': [
{
'ip_address': '192.168.1.6',
'subnet_id': subnet_2['id']
}
],
'binding:vif_type': 'ovs',
'binding:vnic_type': 'normal',
}
network_3_port_1 = {
'id': '4bfa1dc4-4354-4840-b0b4-f06196fa1344',
'network_id': network_3['id'],
'status': 'ACTIVE',
'mac_address': 'd2:0b:fd:99:89:9b',
'fixed_ips': [
{
'ip_address': '192.168.2.6',
'subnet_id': subnet_3['id']
}
],
'binding:vif_type': 'ovs',
'binding:vnic_type': 'normal',
}
network_4_port_1 = {
'id': 'b4cd0b93-2ac8-40a7-9fa4-2cd680ccdf3e',
'network_id': network_4['id'],
'status': 'ACTIVE',
'mac_address': 'b5:bc:2e:e7:51:ee',
'fixed_ips': [
{
'ip_address': '192.168.4.6',
'subnet_id': subnet_4['id']
}
],
'binding:vif_type': 'hw_veb',
'binding:vnic_type': 'direct',
'binding:vif_details': {'vlan': 42},
'binding:profile': {'pci_vendor_info': '1377:0047',
'pci_slot': '0000:81:00.1',
'physical_network': 'physnet4'},
}
def __init__(self, test):
super(LibvirtNeutronFixture, self).__init__(test)
self._networks = {
self.network_1['id']: self.network_1,
self.network_2['id']: self.network_2,
self.network_3['id']: self.network_3,
self.network_4['id']: self.network_4,
}
self._net1_ports = [self.network_1_port_2, self.network_1_port_3]
def create_port(self, body=None):
network_id = body['port']['network_id']
assert network_id in self._networks, ('Network %s not in fixture' %
network_id)
if network_id == self.network_1['id']:
port = self._net1_ports.pop(0)
elif network_id == self.network_2['id']:
port = self.network_2_port_1
elif network_id == self.network_3['id']:
port = self.network_3_port_1
elif network_id == self.network_4['id']:
port = self.network_4_port_1
# this copy is here to avoid modifying class variables like
# network_2_port_1 below at the update call
port = copy.deepcopy(port)
port.update(body['port'])
self._ports[port['id']] = port
# this copy is here as nova sometimes modifies the returned port
# locally and we want to avoid that nova modifies the fixture internals
return {'port': copy.deepcopy(port)}