def unplug(self, datalink_name, bridge=None, namespace=None, prefix=None):
"""Unplug the interface."""
# remove any IP addresses on top of this datalink, otherwise we will
# get 'device busy' error while deleting the datalink
self.fini_l3(datalink_name)
dl = net_lib.Datalink(datalink_name)
dl.delete_vnic()
if bridge is None:
bridge = self.conf.ovs_integration_bridge
# check if bridge exists
ovs = ovs_lib.OVSBridge(bridge)
if not ovs.bridge_exists(bridge):
raise exceptions.BridgeDoesNotExist(bridge=bridge)
try:
ovs.delete_port(datalink_name)
LOG.debug("Unplugged interface '%s'", datalink_name)
except RuntimeError as err:
LOG.exception(
_("Failed unplugging interface '%s': %s") %
(datalink_name, err))
def check_bridge_exists(self, bridge):
if not ip_lib.device_exists(bridge):
raise exceptions.BridgeDoesNotExist(bridge=bridge)
def plug(self,
tenant_id,
network_id,
port_id,
datalink_name,
mac_address,
network=None,
bridge=None,
namespace=None,
prefix=None,
protection=False,
mtu=None,
vif_type=None):
"""Plug in the interface."""
if net_lib.Datalink.datalink_exists(datalink_name):
LOG.info(_("Device %s already exists"), datalink_name)
return
if bridge is None:
bridge = self.conf.ovs_integration_bridge
# check if bridge exists
ovs = ovs_lib.OVSBridge(bridge)
if not ovs.bridge_exists(bridge):
raise exceptions.BridgeDoesNotExist(bridge=bridge)
if network is None:
network = self.neutron_client.show_network(network_id)['network']
mtu = network.get('mtu')
network_type = network.get('provider:network_type')
vid = None
lower_link = None
if network_type == p_const.TYPE_VXLAN:
lower_link = 'ovs.vxlan1'
elif network_type in [p_const.TYPE_VLAN, p_const.TYPE_FLAT]:
phys_network = network.get('provider:physical_network')
# For integration bridge the ovs agent will take care of
# adding the vlan id
if bridge != self.conf.ovs_integration_bridge:
vid = network.get('provider:segmentation_id')
# need to determine the bridge mapping
try:
results = get_ovsdb_info('Open_vSwitch', ['other_config'])
except Exception as err:
LOG.exception(_("Failed to retrieve other_config from %s: %s"),
bridge, err)
raise
other_config = results[0]['other_config']
if not other_config:
msg = (_("'other_config' column in 'Open_vSwitch' OVSDB table "
"is not configured. Please configure it so that "
"lower-link can be determined for the VNICs"))
raise exceptions.Invalid(message=msg)
bridge_mappings = other_config.get('bridge_mappings')
if not bridge_mappings:
msg = (_("'bridge_mappings' info is not set in 'other_config' "
"column of 'Open_vSwitch' OVSDB table. Please "
"configure it so that lower-link can be determined "
"for the VNICs"))
raise exceptions.Invalid(message=msg)
for bridge_mapping in bridge_mappings.split(','):
if phys_network not in bridge_mapping:
continue
lower_link = bridge_mapping.split(':')[1]
break
else:
# TYPE_GRE and TYPE_LOCAL
msg = (_("Unsupported network type: %s") % network_type)
LOG.error(msg)
raise exceptions.Invalid(message=msg)
# if lower_link is not set or empty, we need to fail
if not lower_link:
msg = (_("Failed to determine the lower_link for VNIC "
"%s on physical_network %s") %
(datalink_name, phys_network))
LOG.error(msg)
raise exceptions.Invalid(message=msg)
if vif_type == 'binding_failed':
msg = (_('Port binding has failed for %s. Ensure that '
'OVS agent is running and/or bridge_mappings are '
'correctly configured. Port will not have network '
'connectivity') % datalink_name)
LOG.error(msg)
dl = net_lib.Datalink(datalink_name)
dl.create_vnic(lower_link, mac_address, vid, temp=True)
if mtu:
try:
dl.set_prop('mtu', mtu)
except Exception:
msg = (_("Failed to set mtu value of '%s' on '%s' over lower "
"link '%s'. If you are using VLANs, then ensure that "
"either the mapping of physical networks to MTU "
"values (ml2_conf.ini`physical_network_mtus option) "
"or neutron.conf`global_physnet_mtu value is set "
"correctly. If you are using VXLANs, make sure that "
"ml2_conf.ini`path_mtu value is set correctly.") %
(mtu, datalink_name, lower_link))
LOG.error(msg)
attrs = [('external_ids', {
'iface-id': port_id,
'iface-status': 'active',
'attached-mac': mac_address
})]
ovs.replace_port(datalink_name, *attrs)
