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python-ganttclient/nova/tests/test_libvirt_vif.py
Daniel P. Berrange 04711187ad Allow VIF model to be chosen per image 
This allows for an image in glance to be annotated with a
property describing the required VIF model

eg

  # glance image-update \
           --property vif_model=e1000 \
           f16-x86_64-openstack-sda

Valid model values vary per the libvirt_type setting:

 qemu/kvm: 'virtio', 'ne2k_pci', 'pcnet', 'rtl8139', 'e1000'
 xen: 'netfront', 'ne2k_pci', 'pcnet', 'rtl8139', 'e1000'

Requesting an unsupported VIF model will cause the guest
instance to fail to launch.

DocImpact
Blueprint: libvirt-custom-hardware
Change-Id: Idbee0c61cffdb43db5668fb88869a5d30278593f
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2013-02-13 11:14:57 +00:00

621 lines
23 KiB
Python
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# vim: tabstop=4 shiftwidth=4 softtabstop=4
#
# Copyright 2012 Nicira, Inc
#
# 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.
from lxml import etree
from nova import exception
from nova.network import model as network_model
from nova.openstack.common import cfg
from nova import test
from nova.tests import fakelibvirt
from nova import utils
from nova.virt.libvirt import config as vconfig
from nova.virt.libvirt import vif
CONF = cfg.CONF
class LibvirtVifTestCase(test.TestCase):
net_bridge = {
'cidr': '101.168.1.0/24',
'cidr_v6': '101:1db9::/64',
'gateway_v6': '101:1db9::1',
'netmask_v6': '64',
'netmask': '255.255.255.0',
'bridge': 'br0',
'bridge_interface': 'eth0',
'vlan': 99,
'gateway': '101.168.1.1',
'broadcast': '101.168.1.255',
'dns1': '8.8.8.8',
'id': 'network-id-xxx-yyy-zzz'
}
net_bridge_quantum = {
'cidr': '101.168.1.0/24',
'cidr_v6': '101:1db9::/64',
'gateway_v6': '101:1db9::1',
'netmask_v6': '64',
'netmask': '255.255.255.0',
'bridge_interface': 'eth0',
'vlan': 99,
'gateway': '101.168.1.1',
'broadcast': '101.168.1.255',
'dns1': '8.8.8.8',
'id': 'network-id-xxx-yyy-zzz'
}
mapping_bridge = {
'mac': 'ca:fe:de:ad:be:ef',
'gateway_v6': net_bridge['gateway_v6'],
'ips': [{'ip': '101.168.1.9'}],
'dhcp_server': '191.168.1.1',
'vif_uuid': 'vif-xxx-yyy-zzz',
'vif_devname': 'tap-xxx-yyy-zzz',
'vif_type': network_model.VIF_TYPE_BRIDGE,
}
mapping_bridge_quantum = {
'mac': 'ca:fe:de:ad:be:ef',
'gateway_v6': net_bridge['gateway_v6'],
'ips': [{'ip': '101.168.1.9'}],
'dhcp_server': '191.168.1.1',
'vif_uuid': 'vif-xxx-yyy-zzz',
'vif_devname': 'tap-xxx-yyy-zzz',
}
net_ovs = {
'cidr': '101.168.1.0/24',
'cidr_v6': '101:1db9::/64',
'gateway_v6': '101:1db9::1',
'netmask_v6': '64',
'netmask': '255.255.255.0',
'bridge': 'br0',
'vlan': 99,
'gateway': '101.168.1.1',
'broadcast': '101.168.1.255',
'dns1': '8.8.8.8',
'id': 'network-id-xxx-yyy-zzz'
}
mapping_ovs = {
'mac': 'ca:fe:de:ad:be:ef',
'gateway_v6': net_ovs['gateway_v6'],
'ips': [{'ip': '101.168.1.9'}],
'dhcp_server': '191.168.1.1',
'vif_uuid': 'vif-xxx-yyy-zzz',
'vif_devname': 'tap-xxx-yyy-zzz',
'vif_type': network_model.VIF_TYPE_OVS,
'ovs_interfaceid': 'aaa-bbb-ccc',
}
mapping_ovs_legacy = {
'mac': 'ca:fe:de:ad:be:ef',
'gateway_v6': net_ovs['gateway_v6'],
'ips': [{'ip': '101.168.1.9'}],
'dhcp_server': '191.168.1.1',
'vif_uuid': 'vif-xxx-yyy-zzz',
}
net_8021 = {
'cidr': '101.168.1.0/24',
'cidr_v6': '101:1db9::/64',
'gateway_v6': '101:1db9::1',
'netmask_v6': '64',
'netmask': '255.255.255.0',
'interface': 'eth0',
'vlan': 99,
'gateway': '101.168.1.1',
'broadcast': '101.168.1.255',
'dns1': '8.8.8.8',
'id': 'network-id-xxx-yyy-zzz'
}
mapping_8021qbh = {
'mac': 'ca:fe:de:ad:be:ef',
'vif_uuid': 'vif-xxx-yyy-zzz',
'vif_devname': 'tap-xxx-yyy-zzz',
'vif_type': network_model.VIF_TYPE_802_QBH,
'qbh_params': network_model.VIF8021QbhParams(
profileid="xxx-yyy-zzz"),
}
mapping_8021qbg = {
'mac': 'ca:fe:de:ad:be:ef',
'vif_uuid': 'vif-xxx-yyy-zzz',
'vif_devname': 'tap-xxx-yyy-zzz',
'vif_type': network_model.VIF_TYPE_802_QBG,
'qbg_params': network_model.VIF8021QbgParams(
managerid="xxx-yyy-zzz",
typeid="aaa-bbb-ccc",
typeidversion="1",
instanceid="ddd-eee-fff")
}
mapping_none = {
'mac': 'ca:fe:de:ad:be:ef',
'gateway_v6': net_bridge['gateway_v6'],
'ips': [{'ip': '101.168.1.9'}],
'dhcp_server': '191.168.1.1',
'vif_uuid': 'vif-xxx-yyy-zzz',
'vif_devname': 'tap-xxx-yyy-zzz',
}
instance = {
'name': 'instance-name',
'uuid': 'instance-uuid'
}
def setUp(self):
super(LibvirtVifTestCase, self).setUp()
self.flags(allow_same_net_traffic=True)
self.executes = []
def fake_execute(*cmd, **kwargs):
self.executes.append(cmd)
return None, None
self.stubs.Set(utils, 'execute', fake_execute)
def _get_instance_xml(self, driver, net, mapping, image_meta=None):
conf = vconfig.LibvirtConfigGuest()
conf.virt_type = "qemu"
conf.name = "fake-name"
conf.uuid = "fake-uuid"
conf.memory = 100 * 1024
conf.vcpus = 4
nic = driver.get_config(self.instance, net, mapping, image_meta)
conf.add_device(nic)
return conf.to_xml()
def test_multiple_nics(self):
conf = vconfig.LibvirtConfigGuest()
conf.virt_type = "qemu"
conf.name = "fake-name"
conf.uuid = "fake-uuid"
conf.memory = 100 * 1024
conf.vcpus = 4
# Tests multiple nic configuration and that target_dev is
# set for each
nics = [{'net_type': 'bridge',
'mac_addr': '00:00:00:00:00:0b',
'source_dev': 'b_source_dev',
'target_dev': 'b_target_dev'},
{'net_type': 'ethernet',
'mac_addr': '00:00:00:00:00:0e',
'source_dev': 'e_source_dev',
'target_dev': 'e_target_dev'},
{'net_type': 'direct',
'mac_addr': '00:00:00:00:00:0d',
'source_dev': 'd_source_dev',
'target_dev': 'd_target_dev'}]
for nic in nics:
nic_conf = vconfig.LibvirtConfigGuestInterface()
nic_conf.net_type = nic['net_type']
nic_conf.target_dev = nic['target_dev']
nic_conf.mac_addr = nic['mac_addr']
nic_conf.source_dev = nic['source_dev']
conf.add_device(nic_conf)
xml = conf.to_xml()
doc = etree.fromstring(xml)
for nic in nics:
path = "./devices/interface/[@type='%s']" % nic['net_type']
node = doc.find(path)
self.assertEqual(nic['net_type'], node.get("type"))
self.assertEqual(nic['mac_addr'],
node.find("mac").get("address"))
self.assertEqual(nic['target_dev'],
node.find("target").get("dev"))
def test_model_novirtio(self):
self.flags(libvirt_use_virtio_for_bridges=False,
libvirt_type='kvm')
def get_connection():
return fakelibvirt.Connection("qemu:///session",
False)
d = vif.LibvirtGenericVIFDriver(get_connection)
xml = self._get_instance_xml(d,
self.net_bridge,
self.mapping_bridge)
doc = etree.fromstring(xml)
ret = doc.findall('./devices/interface')
self.assertEqual(len(ret), 1)
node = ret[0]
ret = node.findall("model")
self.assertEqual(len(ret), 0)
ret = node.findall("driver")
self.assertEqual(len(ret), 0)
def test_model_kvm(self):
self.flags(libvirt_use_virtio_for_bridges=True,
libvirt_type='kvm')
def get_connection():
return fakelibvirt.Connection("qemu:///session",
False)
d = vif.LibvirtGenericVIFDriver(get_connection)
xml = self._get_instance_xml(d,
self.net_bridge,
self.mapping_bridge)
doc = etree.fromstring(xml)
ret = doc.findall('./devices/interface')
self.assertEqual(len(ret), 1)
node = ret[0]
model = node.find("model").get("type")
self.assertEqual(model, "virtio")
ret = node.findall("driver")
self.assertEqual(len(ret), 0)
def test_model_kvm_custom(self):
self.flags(libvirt_use_virtio_for_bridges=True,
libvirt_type='kvm')
def get_connection():
return fakelibvirt.Connection("qemu:///session",
False)
d = vif.LibvirtGenericVIFDriver(get_connection)
image_meta = {'properties': {'vif_model': 'e1000'}}
xml = self._get_instance_xml(d,
self.net_bridge,
self.mapping_bridge,
image_meta)
doc = etree.fromstring(xml)
ret = doc.findall('./devices/interface')
self.assertEqual(len(ret), 1)
node = ret[0]
model = node.find("model").get("type")
self.assertEqual(model, "e1000")
ret = node.findall("driver")
self.assertEqual(len(ret), 0)
def test_model_kvm_bogus(self):
self.flags(libvirt_use_virtio_for_bridges=True,
libvirt_type='kvm')
def get_connection():
return fakelibvirt.Connection("qemu:///session",
False)
d = vif.LibvirtGenericVIFDriver(get_connection)
image_meta = {'properties': {'vif_model': 'acme'}}
self.assertRaises(exception.UnsupportedHardware,
self._get_instance_xml,
d,
self.net_bridge,
self.mapping_bridge,
image_meta)
def test_model_qemu(self):
self.flags(libvirt_use_virtio_for_bridges=True,
libvirt_type='qemu')
def get_connection():
return fakelibvirt.Connection("qemu:///session",
False)
d = vif.LibvirtGenericVIFDriver(get_connection)
xml = self._get_instance_xml(d,
self.net_bridge,
self.mapping_bridge)
doc = etree.fromstring(xml)
ret = doc.findall('./devices/interface')
self.assertEqual(len(ret), 1)
node = ret[0]
model = node.find("model").get("type")
self.assertEqual(model, "virtio")
driver = node.find("driver").get("name")
self.assertEqual(driver, "qemu")
def test_model_xen(self):
self.flags(libvirt_use_virtio_for_bridges=True,
libvirt_type='xen')
def get_connection():
return fakelibvirt.Connection("xen:///system",
False)
d = vif.LibvirtGenericVIFDriver(get_connection)
xml = self._get_instance_xml(d,
self.net_bridge,
self.mapping_bridge)
doc = etree.fromstring(xml)
ret = doc.findall('./devices/interface')
self.assertEqual(len(ret), 1)
node = ret[0]
ret = node.findall("model")
self.assertEqual(len(ret), 0)
ret = node.findall("driver")
self.assertEqual(len(ret), 0)
def test_generic_driver_none(self):
def get_connection():
return fakelibvirt.Connection("qemu:///session",
False)
d = vif.LibvirtGenericVIFDriver(get_connection)
self.assertRaises(exception.NovaException,
self._get_instance_xml,
d,
self.net_bridge,
self.mapping_none)
def _check_bridge_driver(self, d, net, mapping, br_want):
xml = self._get_instance_xml(d, net, mapping)
doc = etree.fromstring(xml)
ret = doc.findall('./devices/interface')
self.assertEqual(len(ret), 1)
node = ret[0]
self.assertEqual(node.get("type"), "bridge")
br_name = node.find("source").get("bridge")
self.assertEqual(br_name, br_want)
mac = node.find("mac").get("address")
self.assertEqual(mac, self.mapping_bridge['mac'])
def test_bridge_driver(self):
def get_connection():
return fakelibvirt.Connection("qemu:///session",
False)
d = vif.LibvirtBridgeDriver(get_connection)
self._check_bridge_driver(d,
self.net_bridge,
self.mapping_bridge,
self.net_bridge['bridge'])
def test_generic_driver_bridge(self):
def get_connection():
return fakelibvirt.Connection("qemu:///session",
False)
d = vif.LibvirtGenericVIFDriver(get_connection)
self._check_bridge_driver(d,
self.net_bridge,
self.mapping_bridge,
self.net_bridge['bridge'])
def test_quantum_bridge_driver(self):
def get_connection():
return fakelibvirt.Connection("qemu:///session",
False)
d = vif.QuantumLinuxBridgeVIFDriver(get_connection)
br_want = 'brq' + self.net_bridge_quantum['id']
br_want = br_want[:network_model.NIC_NAME_LEN]
self._check_bridge_driver(d,
self.net_bridge_quantum,
self.mapping_bridge_quantum,
br_want)
def _check_ovs_ethernet_driver(self, d, net, mapping):
self.flags(firewall_driver="nova.virt.firewall.NoopFirewallDriver")
xml = self._get_instance_xml(d, net, mapping)
doc = etree.fromstring(xml)
ret = doc.findall('./devices/interface')
self.assertEqual(len(ret), 1)
node = ret[0]
self.assertEqual(node.get("type"), "ethernet")
dev_name = node.find("target").get("dev")
self.assertTrue(dev_name.startswith("tap"))
mac = node.find("mac").get("address")
self.assertEqual(mac, self.mapping_ovs['mac'])
script = node.find("script").get("path")
self.assertEquals(script, "")
def test_ovs_ethernet_driver(self):
def get_connection():
return fakelibvirt.Connection("qemu:///session",
False,
9010)
d = vif.LibvirtOpenVswitchDriver(get_connection)
d = vif.LibvirtOpenVswitchDriver()
self._check_ovs_ethernet_driver(d,
self.net_ovs,
self.mapping_ovs_legacy)
def test_ovs_ethernet_driver(self):
def get_connection():
return fakelibvirt.Connection("qemu:///session",
False,
9010)
d = vif.LibvirtGenericVIFDriver(get_connection)
self._check_ovs_ethernet_driver(d,
self.net_ovs,
self.mapping_ovs)
def _check_ovs_virtualport_driver(self, d, net, mapping, want_iface_id):
self.flags(firewall_driver="nova.virt.firewall.NoopFirewallDriver")
xml = self._get_instance_xml(d, net, mapping)
doc = etree.fromstring(xml)
ret = doc.findall('./devices/interface')
self.assertEqual(len(ret), 1)
node = ret[0]
self.assertEqual(node.get("type"), "bridge")
br_name = node.find("source").get("bridge")
self.assertEqual(br_name, "br0")
mac = node.find("mac").get("address")
self.assertEqual(mac, mapping['mac'])
vp = node.find("virtualport")
self.assertEqual(vp.get("type"), "openvswitch")
iface_id_found = False
for p_elem in vp.findall("parameters"):
iface_id = p_elem.get("interfaceid", None)
if iface_id:
self.assertEqual(iface_id, want_iface_id)
iface_id_found = True
self.assertTrue(iface_id_found)
def test_ovs_virtualport_driver(self):
def get_connection():
return fakelibvirt.Connection("qemu:///session",
False,
9011)
d = vif.LibvirtOpenVswitchVirtualPortDriver(get_connection)
want_iface_id = 'vif-xxx-yyy-zzz'
self._check_ovs_virtualport_driver(d,
self.net_ovs,
self.mapping_ovs_legacy,
want_iface_id)
def test_generic_ovs_virtualport_driver(self):
def get_connection():
return fakelibvirt.Connection("qemu:///session",
False,
9011)
d = vif.LibvirtGenericVIFDriver(get_connection)
want_iface_id = self.mapping_ovs['ovs_interfaceid']
self._check_ovs_virtualport_driver(d,
self.net_ovs,
self.mapping_ovs,
want_iface_id)
def _check_quantum_hybrid_driver(self, d, net, mapping, br_want):
self.flags(firewall_driver="nova.virt.firewall.IptablesFirewallDriver")
xml = self._get_instance_xml(d, net, mapping)
doc = etree.fromstring(xml)
ret = doc.findall('./devices/interface')
self.assertEqual(len(ret), 1)
node = ret[0]
self.assertEqual(node.get("type"), "bridge")
br_name = node.find("source").get("bridge")
self.assertEqual(br_name, br_want)
mac = node.find("mac").get("address")
self.assertEqual(mac, mapping['mac'])
def test_quantum_hybrid_driver(self):
def get_connection():
return fakelibvirt.Connection("qemu:///session",
False)
br_want = "qbr" + self.mapping_ovs['vif_uuid']
br_want = br_want[:network_model.NIC_NAME_LEN]
d = vif.LibvirtHybridOVSBridgeDriver(get_connection)
self._check_quantum_hybrid_driver(d,
self.net_ovs,
self.mapping_ovs_legacy,
br_want)
def test_generic_hybrid_driver(self):
def get_connection():
return fakelibvirt.Connection("qemu:///session",
False)
d = vif.LibvirtGenericVIFDriver(get_connection)
br_want = "qbr" + self.mapping_ovs['vif_uuid']
br_want = br_want[:network_model.NIC_NAME_LEN]
self._check_quantum_hybrid_driver(d,
self.net_ovs,
self.mapping_ovs,
br_want)
def test_generic_8021qbh_driver(self):
def get_connection():
return fakelibvirt.Connection("qemu:///session",
False)
d = vif.LibvirtGenericVIFDriver(get_connection)
xml = self._get_instance_xml(d,
self.net_8021,
self.mapping_8021qbh)
doc = etree.fromstring(xml)
ret = doc.findall('./devices/interface')
self.assertEqual(len(ret), 1)
node = ret[0]
self.assertEqual(node.get("type"), "direct")
br_name = node.find("source").get("dev")
self.assertEqual(br_name, "eth0")
mac = node.find("mac").get("address")
self.assertEqual(mac, self.mapping_8021qbh['mac'])
vp = node.find("virtualport")
self.assertEqual(vp.get("type"), "802.1Qbh")
profile_id_found = False
for p_elem in vp.findall("parameters"):
wantparams = self.mapping_8021qbh['qbh_params']
profile_id = p_elem.get("profileid", None)
if profile_id:
self.assertEqual(profile_id,
wantparams['profileid'])
profile_id_found = True
self.assertTrue(profile_id_found)
def test_generic_8021qbg_driver(self):
def get_connection():
return fakelibvirt.Connection("qemu:///session",
False)
d = vif.LibvirtGenericVIFDriver(get_connection)
xml = self._get_instance_xml(d,
self.net_8021,
self.mapping_8021qbg)
doc = etree.fromstring(xml)
print xml
ret = doc.findall('./devices/interface')
self.assertEqual(len(ret), 1)
node = ret[0]
self.assertEqual(node.get("type"), "direct")
br_name = node.find("source").get("dev")
self.assertEqual(br_name, "eth0")
mac = node.find("mac").get("address")
self.assertEqual(mac, self.mapping_8021qbg['mac'])
vp = node.find("virtualport")
self.assertEqual(vp.get("type"), "802.1Qbg")
manager_id_found = False
type_id_found = False
typeversion_id_found = False
instance_id_found = False
for p_elem in vp.findall("parameters"):
wantparams = self.mapping_8021qbg['qbg_params']
manager_id = p_elem.get("managerid", None)
type_id = p_elem.get("typeid", None)
typeversion_id = p_elem.get("typeidversion", None)
instance_id = p_elem.get("instanceid", None)
if manager_id:
self.assertEqual(manager_id,
wantparams['managerid'])
manager_id_found = True
if type_id:
self.assertEqual(type_id,
wantparams['typeid'])
type_id_found = True
if typeversion_id:
self.assertEqual(typeversion_id,
wantparams['typeidversion'])
typeversion_id_found = True
if instance_id:
self.assertEqual(instance_id,
wantparams['instanceid'])
instance_id_found = True
self.assertTrue(manager_id_found)
self.assertTrue(type_id_found)
self.assertTrue(typeversion_id_found)
self.assertTrue(instance_id_found)
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