def attach(self, instance, vif, container_id):
vif_type = vif['type']
if_remote_name = 'ns%s' % vif['id'][:11]
gateway = network.find_gateway(instance, vif['network'])
ip = network.find_fixed_ip(instance, vif['network'])
LOG.debug('attach vif_type=%(vif_type)s instance=%(instance)s '
'vif=%(vif)s',
{'vif_type': vif_type, 'instance': instance,
'vif': vif})
try:
utils.execute('ip', 'link', 'set', if_remote_name, 'netns',
container_id, run_as_root=True)
utils.execute('ip', 'netns', 'exec', container_id, 'ip', 'link',
'set', if_remote_name, 'address', vif['address'],
run_as_root=True)
utils.execute('ip', 'netns', 'exec', container_id, 'ip', 'addr',
'add', ip, 'dev', if_remote_name, run_as_root=True)
utils.execute('ip', 'netns', 'exec', container_id, 'ip', 'link',
'set', if_remote_name, 'up', run_as_root=True)
if gateway is not None:
utils.execute('ip', 'netns', 'exec', container_id,
'ip', 'route', 'replace', 'default', 'via',
gateway, 'dev', if_remote_name, run_as_root=True)
except Exception:
LOG.exception("Failed to attach vif")
def plug_bridge(self, instance, vif):
if_local_name = 'tap%s' % vif['id'][:11]
if_remote_name = 'ns%s' % vif['id'][:11]
bridge = vif['network']['bridge']
gateway = network.find_gateway(instance, vif['network'])
ip = network.find_fixed_ip(instance, vif['network'])
# Device already exists so return.
if linux_net.device_exists(if_local_name):
return
undo_mgr = utils.UndoManager()
try:
utils.execute('ip', 'link', 'add', 'name', if_local_name, 'type',
'veth', 'peer', 'name', if_remote_name,
run_as_root=True)
undo_mgr.undo_with(lambda: utils.execute(
'ip', 'link', 'delete', if_local_name, run_as_root=True))
# NOTE(samalba): Deleting the interface will delete all
# associated resources (remove from the bridge, its pair, etc...)
utils.execute('brctl', 'addif', bridge, if_local_name,
run_as_root=True)
utils.execute('ip', 'link', 'set', if_local_name, 'up',
run_as_root=True)
except Exception:
LOG.exception("Failed to configure network")
msg = _('Failed to setup the network, rolling back')
undo_mgr.rollback_and_reraise(msg=msg, instance=instance)
def attach(self, instance, vif, container_id):
vif_type = vif['type']
if_remote_name = 'ns%s' % vif['id'][:11]
gateway = network.find_gateway(instance, vif['network'])
ip = network.find_fixed_ip(instance, vif['network'])
LOG.debug(
'attach vif_type=%(vif_type)s instance=%(instance)s '
'vif=%(vif)s', {
'vif_type': vif_type,
'instance': instance,
'vif': vif
})
try:
utils.execute('ip',
'link',
'set',
if_remote_name,
'netns',
container_id,
run_as_root=True)
utils.execute('ip',
'netns',
'exec',
container_id,
'ip',
'link',
'set',
if_remote_name,
'address',
vif['address'],
run_as_root=True)
utils.execute('ip',
'netns',
'exec',
container_id,
'ifconfig',
if_remote_name,
ip,
run_as_root=True)
if gateway is not None:
utils.execute('ip',
'netns',
'exec',
container_id,
'ip',
'route',
'replace',
'default',
'via',
gateway,
'dev',
if_remote_name,
run_as_root=True)
except Exception:
LOG.exception("Failed to attach vif")
def _setup_network(self, instance, network_info):
if not network_info:
return
container_id = self._find_container_by_name(instance['name']).get('id')
if not container_id:
return
network_info = network_info[0]['network']
netns_path = '/var/run/netns'
if not os.path.exists(netns_path):
utils.execute(
'mkdir', '-p', netns_path, run_as_root=True)
nspid = self._find_container_pid(container_id)
if not nspid:
msg = _('Cannot find any PID under container "{0}"')
raise RuntimeError(msg.format(container_id))
netns_path = os.path.join(netns_path, container_id)
utils.execute(
'ln', '-sf', '/proc/{0}/ns/net'.format(nspid),
'/var/run/netns/{0}'.format(container_id),
run_as_root=True)
rand = random.randint(0, 100000)
if_local_name = 'pvnetl{0}'.format(rand)
if_remote_name = 'pvnetr{0}'.format(rand)
bridge = network_info['bridge']
gateway = network.find_gateway(instance, network_info)
ip = network.find_fixed_ip(instance, network_info)
undo_mgr = utils.UndoManager()
try:
utils.execute(
'ip', 'link', 'add', 'name', if_local_name, 'type',
'veth', 'peer', 'name', if_remote_name,
run_as_root=True)
undo_mgr.undo_with(lambda: utils.execute(
'ip', 'link', 'delete', if_local_name, run_as_root=True))
# NOTE(samalba): Deleting the interface will delete all associated
# resources (remove from the bridge, its pair, etc...)
utils.execute(
'brctl', 'addif', bridge, if_local_name,
run_as_root=True)
utils.execute(
'ip', 'link', 'set', if_local_name, 'up',
run_as_root=True)
utils.execute(
'ip', 'link', 'set', if_remote_name, 'netns', nspid,
run_as_root=True)
utils.execute(
'ip', 'netns', 'exec', container_id, 'ifconfig',
if_remote_name, ip,
run_as_root=True)
utils.execute(
'ip', 'netns', 'exec', container_id,
'ip', 'route', 'replace', 'default', 'via', gateway, 'dev',
if_remote_name, run_as_root=True)
except Exception:
msg = _('Failed to setup the network, rolling back')
undo_mgr.rollback_and_reraise(msg=msg, instance=instance)
def attach(self, instance, vif, container_id):
vif_type = vif['type']
if_remote_name = 'ns%s' % vif['id'][:11]
gateway = network.find_gateway(instance, vif['network'])
dhcp = network.find_dhcp(instance, vif['network'])
ip = network.find_fixed_ip(instance, vif['network'])
mtu = network.find_mtu(instance, vif['network'])
LOG.debug('attach vif_type=%(vif_type)s instance=%(instance)s '
'vif=%(vif)s',
{'vif_type': vif_type, 'instance': instance,
'vif': vif})
try:
utils.execute('ip', 'link', 'set', if_remote_name, 'netns',
container_id, run_as_root=True)
utils.execute('ip', 'netns', 'exec', container_id, 'ip', 'link',
'set', if_remote_name, 'address', vif['address'],
run_as_root=True)
utils.execute('ip', 'netns', 'exec', container_id, 'ip', 'addr',
'add', ip, 'dev', if_remote_name, run_as_root=True)
utils.execute('ip', 'netns', 'exec', container_id, 'ip', 'link',
'set', if_remote_name, 'up', run_as_root=True)
# Setup MTU on if_remote_name is required if it is a non
# default value
# mtu = CONF.network_device_mtu
if vif.get('mtu') is not None:
mtu = vif.get('mtu')
if mtu is not None:
utils.execute('ip', 'netns', 'exec', container_id, 'ip',
'link', 'set', if_remote_name, 'mtu', mtu,
run_as_root=True)
if gateway is not None:
utils.execute('ip', 'netns', 'exec', container_id,
'ip', 'route', 'replace', 'default', 'via',
gateway, 'dev', if_remote_name, run_as_root=True)
if dhcp is not None:
utils.execute('ip', 'netns', 'exec', container_id,
'ip', 'route', 'replace', '169.254.169.254/32', 'via',
dhcp, run_as_root=True)
# Disable TSO, for now no config option
utils.execute('ip', 'netns', 'exec', container_id, 'ethtool',
'--offload', if_remote_name, 'tso', 'off',
run_as_root=True)
except Exception:
LOG.exception("Failed to attach vif")
def plug_bridge(self, instance, vif):
if_local_name = 'tap%s' % vif['id'][:11]
if_remote_name = 'ns%s' % vif['id'][:11]
bridge = vif['network']['bridge']
gateway = network.find_gateway(instance, vif['network'])
net = vif['network']
if net.get_meta('should_create_vlan', False):
vlan = net.get_meta('vlan'),
iface = (CONF.vlan_interface or
vif['network'].get_meta('bridge_interface'))
linux_net.LinuxBridgeInterfaceDriver.ensure_vlan_bridge(
vlan,
bridge,
iface,
net_attrs=vif,
mtu=vif.get('mtu'))
iface = 'vlan%s' % vlan
else:
iface = (CONF.flat_interface or
vif['network'].get_meta('bridge_interface'))
LOG.debug('Ensuring bridge for %s - %s' % (iface, bridge))
linux_net.LinuxBridgeInterfaceDriver.ensure_bridge(
bridge,
iface,
net_attrs=vif,
gateway=gateway)
# Device already exists so return.
if linux_net.device_exists(if_local_name):
return
undo_mgr = utils.UndoManager()
try:
utils.execute('ip', 'link', 'add', 'name', if_local_name, 'type',
'veth', 'peer', 'name', if_remote_name,
run_as_root=True)
undo_mgr.undo_with(lambda: utils.execute(
'ip', 'link', 'delete', if_local_name, run_as_root=True))
# NOTE(samalba): Deleting the interface will delete all
# associated resources (remove from the bridge, its pair, etc...)
utils.execute('ip', 'link', 'set', if_local_name, 'address',
self._fe_random_mac(), run_as_root=True)
utils.execute('brctl', 'addif', bridge, if_local_name,
run_as_root=True)
utils.execute('ip', 'link', 'set', if_local_name, 'up',
run_as_root=True)
except Exception:
LOG.exception("Failed to configure network")
msg = _('Failed to setup the network, rolling back')
undo_mgr.rollback_and_reraise(msg=msg, instance=instance)
def plug_bridge(self, instance, vif):
LOG.info('5555')
if_local_name = 'tap%s' % vif['id'][:11]
if_remote_name = 'ns%s' % vif['id'][:11]
bridge = vif['network']['bridge']
gateway = network.find_gateway(instance, vif['network'])
vlan = vif.get('vlan')
if vlan is not None:
iface = (CONF.vlan_interface or
vif['network'].get_meta('bridge_interface'))
linux_net.LinuxBridgeInterfaceDriver.ensure_vlan_bridge(
vlan,
bridge,
iface,
net_attrs=vif,
mtu=vif.get('mtu'))
iface = 'vlan%s' % vlan
else:
iface = (CONF.flat_interface or
vif['network'].get_meta('bridge_interface'))
LOG.debug('Ensuring bridge for %s - %s' % (iface, bridge))
linux_net.LinuxBridgeInterfaceDriver.ensure_bridge(
bridge,
iface,
net_attrs=vif,
gateway=gateway)
# Device already exists so return.
if linux_net.device_exists(if_local_name):
return
undo_mgr = utils.UndoManager()
try:
utils.execute('ip', 'link', 'add', 'name', if_local_name, 'type',
'veth', 'peer', 'name', if_remote_name,
run_as_root=True)
undo_mgr.undo_with(lambda: utils.execute(
'ip', 'link', 'delete', if_local_name, run_as_root=True))
# NOTE(samalba): Deleting the interface will delete all
# associated resources (remove from the bridge, its pair, etc...)
utils.execute('ip', 'link', 'set', if_local_name, 'address',
self._fe_random_mac(), run_as_root=True)
utils.execute('brctl', 'addif', bridge, if_local_name,
run_as_root=True)
utils.execute('ip', 'link', 'set', if_local_name, 'up',
run_as_root=True)
except Exception:
LOG.exception("Failed to configure network")
msg = _('Failed to setup the network, rolling back')
undo_mgr.rollback_and_reraise(msg=msg, instance=instance)
def attach(self, instance, vif, container_id):
vif_type = vif['type']
if_remote_name = 'ns%s' % vif['id'][:11]
gateway = network.find_gateway(instance, vif['network'])
ip = network.find_fixed_ip(instance, vif['network'])
LOG.debug('attach vif_type=%(vif_type)s instance=%(instance)s '
'vif=%(vif)s',
{'vif_type': vif_type, 'instance': instance,
'vif': vif})
try:
utils.execute('ip', 'link', 'set', if_remote_name, 'netns',
container_id, run_as_root=True)
utils.execute('ip', 'netns', 'exec', container_id, 'ip', 'link',
'set', if_remote_name, 'address', vif['address'],
run_as_root=True)
utils.execute('ip', 'netns', 'exec', container_id, 'ip', 'addr',
'add', ip, 'dev', if_remote_name, run_as_root=True)
utils.execute('ip', 'netns', 'exec', container_id, 'ip', 'link',
'set', if_remote_name, 'up', run_as_root=True)
# Setup MTU on if_remote_name is required if it is a non
# default value
mtu = CONF.network_device_mtu
if vif.get('mtu') is not None:
mtu = vif.get('mtu')
if mtu is not None:
utils.execute('ip', 'netns', 'exec', container_id, 'ip',
'link', 'set', if_remote_name, 'mtu', mtu,
run_as_root=True)
if gateway is not None:
utils.execute('ip', 'netns', 'exec', container_id,
'ip', 'route', 'replace', 'default', 'via',
gateway, 'dev', if_remote_name, run_as_root=True)
# Disable TSO, for now no config option
utils.execute('ip', 'netns', 'exec', container_id, 'ethtool',
'--offload', if_remote_name, 'tso', 'off',
run_as_root=True)
except Exception:
LOG.exception("Failed to attach vif")
def plug_ovs(self, instance, vif, container_id):
if_local_name = 'tap%s' % vif['id'][:11]
if_remote_name = 'ns%s' % vif['id'][:11]
bridge = vif['network']['bridge']
gateway = network.find_gateway(instance, vif['network'])
ip = network.find_fixed_ip(instance, vif['network'])
# Device already exists so return.
if linux_net.device_exists(if_local_name):
return
undo_mgr = utils.UndoManager()
try:
utils.execute('ip', 'link', 'add', 'name', if_local_name, 'type',
'veth', 'peer', 'name', if_remote_name,
run_as_root=True)
linux_net.create_ovs_vif_port(bridge, if_local_name,
network.get_ovs_interfaceid(vif),
vif['address'],
instance['uuid'])
utils.execute('ip', 'link', 'set', if_local_name, 'up',
run_as_root=True)
utils.execute('ip', 'link', 'set', if_remote_name, 'netns',
container_id, run_as_root=True)
utils.execute('ip', 'netns', 'exec', container_id, 'ip', 'link',
'set', if_remote_name, 'address', vif['address'],
run_as_root=True)
utils.execute('ip', 'netns', 'exec', container_id, 'ifconfig',
if_remote_name, ip, run_as_root=True)
utils.execute('ip', 'netns', 'exec', container_id,
'ip', 'route', 'replace', 'default', 'via',
gateway, 'dev', if_remote_name, run_as_root=True)
except Exception:
LOG.exception("Failed to configure network")
msg = _('Failed to setup the network, rolling back')
undo_mgr.rollback_and_reraise(msg=msg, instance=instance)
def test_find_gateway(self):
instance = {'uuid': uuid.uuid4()}
network_info = test_utils.get_test_network_info()
first_net = network_info[0]['network']
first_net['subnets'][0]['gateway']['address'] = '10.0.0.1'
self.assertEqual('10.0.0.1', network.find_gateway(instance, first_net))
def test_find_gateway(self):
instance = {'uuid': uuid.uuid4()}
network_info = test_utils.get_test_network_info()
first_net = network_info[0]['network']
first_net['subnets'][0]['gateway']['address'] = '10.0.0.1'
self.assertEqual('10.0.0.1', network.find_gateway(instance, first_net))
def plug_ovs(self, instance, vif, container_id):
if_local_name = 'tap%s' % vif['id'][:11]
if_remote_name = 'ns%s' % vif['id'][:11]
bridge = vif['network']['bridge']
gateway = network.find_gateway(instance, vif['network'])
ip = network.find_fixed_ip(instance, vif['network'])
# Device already exists so return.
if linux_net.device_exists(if_local_name):
return
undo_mgr = utils.UndoManager()
try:
utils.execute('ip',
'link',
'add',
'name',
if_local_name,
'type',
'veth',
'peer',
'name',
if_remote_name,
run_as_root=True)
linux_net.create_ovs_vif_port(bridge, if_local_name,
network.get_ovs_interfaceid(vif),
vif['address'], instance['uuid'])
utils.execute('ip',
'link',
'set',
if_local_name,
'up',
run_as_root=True)
utils.execute('ip',
'link',
'set',
if_remote_name,
'netns',
container_id,
run_as_root=True)
utils.execute('ip',
'netns',
'exec',
container_id,
'ip',
'link',
'set',
if_remote_name,
'address',
vif['address'],
run_as_root=True)
utils.execute('ip',
'netns',
'exec',
container_id,
'ifconfig',
if_remote_name,
ip,
run_as_root=True)
utils.execute('ip',
'netns',
'exec',
container_id,
'ip',
'route',
'replace',
'default',
'via',
gateway,
'dev',
if_remote_name,
run_as_root=True)
except Exception:
LOG.exception("Failed to configure network")
msg = _('Failed to setup the network, rolling back')
undo_mgr.rollback_and_reraise(msg=msg, instance=instance)
def plug_bridge(self, instance, vif, container_id):
if_local_name = 'tap%s' % vif['id'][:11]
if_remote_name = 'ns%s' % vif['id'][:11]
bridge = vif['network']['bridge']
gateway = network.find_gateway(instance, vif['network'])
ip = network.find_fixed_ip(instance, vif['network'])
# Device already exists so return.
if linux_net.device_exists(if_local_name):
return
undo_mgr = utils.UndoManager()
try:
utils.execute('ip',
'link',
'add',
'name',
if_local_name,
'type',
'veth',
'peer',
'name',
if_remote_name,
run_as_root=True)
undo_mgr.undo_with(lambda: utils.execute(
'ip', 'link', 'delete', if_local_name, run_as_root=True))
# NOTE(samalba): Deleting the interface will delete all
# associated resources (remove from the bridge, its pair, etc...)
utils.execute('brctl',
'addif',
bridge,
if_local_name,
run_as_root=True)
utils.execute('ip',
'link',
'set',
if_local_name,
'up',
run_as_root=True)
utils.execute('ip',
'link',
'set',
if_remote_name,
'netns',
container_id,
run_as_root=True)
utils.execute('ip',
'netns',
'exec',
container_id,
'ip',
'link',
'set',
if_remote_name,
'address',
vif['address'],
run_as_root=True)
utils.execute('ip',
'netns',
'exec',
container_id,
'ifconfig',
if_remote_name,
ip,
run_as_root=True)
utils.execute('ip',
'netns',
'exec',
container_id,
'ip',
'route',
'replace',
'default',
'via',
gateway,
'dev',
if_remote_name,
run_as_root=True)
except Exception:
LOG.exception("Failed to configure network")
msg = _('Failed to setup the network, rolling back')
undo_mgr.rollback_and_reraise(msg=msg, instance=instance)
