def _post_plug_wiring_veth_and_bridge(instance, vif):
"""Wire/plug the virtual interface for the instance into the bridge that
lxd is using.
:param instance: the instance to plug into the bridge
:type instance: ???
:param vif: the virtual interface to plug into the bridge
:type vif: :class:`nova.network.model.VIF`
"""
config = get_config(vif)
network = vif.get('network')
mtu = network.get_meta('mtu') if network else None
v1_name = get_vif_devname(vif)
v2_name = get_vif_internal_devname(vif)
if not network_utils.device_exists(v1_name):
_create_veth_pair(v1_name, v2_name, mtu)
if _is_ovs_vif_port(vif):
# NOTE(jamespage): wire tap device directly to ovs bridge
linux_net.create_ovs_vif_port(vif['network']['bridge'], v1_name,
vif['id'], vif['address'],
instance.uuid, mtu)
else:
# NOTE(jamespage): wire tap device linux bridge
_add_bridge_port(config['bridge'], v1_name)
else:
network_utils.set_device_mtu(v1_name, mtu)
def plug_tap(self, instance, vif):
"""Plug a VIF_TYPE_TAP virtual interface."""
dev = self.get_vif_devname(vif)
mac = vif['details'].get(network_model.VIF_DETAILS_TAP_MAC_ADDRESS)
linux_net_utils.create_tap_dev(dev, mac)
network = vif.get('network')
mtu = network.get_meta('mtu') if network else None
linux_net_utils.set_device_mtu(dev, mtu)
def plug_tap(self, instance, vif):
"""Plug a VIF_TYPE_TAP virtual interface."""
dev = self.get_vif_devname(vif)
mac = vif['details'].get(network_model.VIF_DETAILS_TAP_MAC_ADDRESS)
linux_net_utils.create_tap_dev(dev, mac)
network = vif.get('network')
mtu = network.get_meta('mtu') if network else None
linux_net_utils.set_device_mtu(dev, mtu)
def plug_tap(self, instance, vif):
"""Plug a VIF_TYPE_TAP virtual interface."""
v1_name = get_vif_devname(vif)
v2_name = get_vif_internal_devname(vif)
network = vif.get('network')
mtu = network.get_meta('mtu') if network else None
# NOTE(jamespage): For nova-lxd this is really a veth pair
# so that a) security rules get applied on the host
# and b) that the container can still be wired.
if not network_utils.device_exists(v1_name):
_create_veth_pair(v1_name, v2_name, mtu)
else:
network_utils.set_device_mtu(v1_name, mtu)
def plug_tap(self, instance, vif):
"""Plug a VIF_TYPE_TAP virtual interface."""
dev = self.get_vif_devname(vif)
mac = vif['details'].get(network_model.VIF_DETAILS_TAP_MAC_ADDRESS)
image_meta = instance.image_meta
vif_model = self.get_vif_model(image_meta=image_meta)
# TODO(ganso): explore whether multiqueue works for other vif models
# that go through this code path.
multiqueue = (self._requests_multiqueue(image_meta)
and vif_model == network_model.VIF_MODEL_VIRTIO)
linux_net_utils.create_tap_dev(dev, mac, multiqueue=multiqueue)
network = vif.get('network')
mtu = network.get_meta('mtu') if network else None
linux_net_utils.set_device_mtu(dev, mtu)
def _post_plug_wiring_veth_and_bridge(instance, vif):
config = get_config(vif)
network = vif.get('network')
mtu = network.get_meta('mtu') if network else None
v1_name = get_vif_devname(vif)
v2_name = get_vif_internal_devname(vif)
if not network_utils.device_exists(v1_name):
_create_veth_pair(v1_name, v2_name, mtu)
if _is_ovs_vif_port(vif):
# NOTE(jamespage): wire tap device directly to ovs bridge
linux_net.create_ovs_vif_port(vif['network']['bridge'], v1_name,
vif['id'], vif['address'],
instance.uuid, mtu)
else:
# NOTE(jamespage): wire tap device linux bridge
_add_bridge_port(config['bridge'], v1_name)
else:
network_utils.set_device_mtu(v1_name, mtu)
def _create_veth_pair(dev1_name, dev2_name, mtu=None):
"""Create a pair of veth devices with the specified names,
deleting any previous devices with those names.
"""
for dev in [dev1_name, dev2_name]:
network_utils.delete_net_dev(dev)
utils.execute('ip',
'link',
'add',
dev1_name,
'type',
'veth',
'peer',
'name',
dev2_name,
run_as_root=True)
for dev in [dev1_name, dev2_name]:
utils.execute('ip', 'link', 'set', dev, 'up', run_as_root=True)
network_utils.set_device_mtu(dev, mtu)
def test_set_device_mtu_default(self):
calls = []
with mock.patch('nova.utils.execute', return_value=('', '')) as ex:
net_utils.set_device_mtu('fake-dev')
ex.assert_has_calls(calls)
