def get_nsx_router_id(session, cluster, neutron_router_id):
"""Return the NSX router uuid for a given neutron router.
First, look up the Neutron database. If not found, execute
a query on NSX platform as the mapping might be missing.
"""
if not neutron_router_id:
return
nsx_router_id = nsx_db.get_nsx_router_id(
session, neutron_router_id)
if not nsx_router_id:
# Find logical router from backend.
# This is a rather expensive query, but it won't be executed
# more than once for each router in Neutron's lifetime
nsx_routers = routerlib.query_lrouters(
cluster, '*',
filters={'tag': neutron_router_id,
'tag_scope': 'q_router_id'})
# Only one result expected
# NOTE(salv-orlando): Not handling the case where more than one
# port is found with the same neutron port tag
if not nsx_routers:
LOG.warn(_LW("Unable to find NSX router for Neutron router %s"),
neutron_router_id)
return
nsx_router = nsx_routers[0]
nsx_router_id = nsx_router['uuid']
with session.begin(subtransactions=True):
# Create DB mapping
nsx_db.add_neutron_nsx_router_mapping(
session,
neutron_router_id,
nsx_router_id)
return nsx_router_id
def delete_router(self, context, router_id):
nsx_router_id = nsx_db.get_nsx_router_id(context.session,
router_id)
ret_val = super(NsxV3Plugin, self).delete_router(context,
router_id)
# Remove logical router from the NSX backend
# It is safe to do now as db-level checks for resource deletion were
# passed (and indeed the resource was removed from the Neutron DB
try:
nsxlib.delete_logical_router(nsx_router_id)
except nsx_exc.LogicalRouterNotFound:
# If the logical router was not found on the backend do not worry
# about it. The conditions has already been logged, so there is no
# need to do further logging
pass
except nsx_exc.NsxPluginException:
# if there is a failure in deleting the router do not fail the
# operation, especially since the router object has already been
# removed from the neutron DB. Take corrective steps to ensure the
# resulting zombie object does not forward any traffic and is
# eventually removed.
LOG.warning(_LW("Backend router deletion for neutron router %s "
"failed. The object was however removed from the "
"Neutron datanase"), router_id)
return ret_val
def add_router_interface(self, context, router_id, interface_info):
# NOTE(arosen): I think there is a bug here since I believe we
# can also get a port or ip here....
subnet = self.get_subnet(context, interface_info['subnet_id'])
port = {'port': {'network_id': subnet['network_id'], 'name': '',
'admin_state_up': True, 'device_id': '',
'device_owner': l3_db.DEVICE_OWNER_ROUTER_INTF,
'mac_address': attributes.ATTR_NOT_SPECIFIED,
'fixed_ips': [{'subnet_id': subnet['id'],
'ip_address': subnet['gateway_ip']}]}}
port = self.create_port(context, port)
_net_id, nsx_port_id = nsx_db.get_nsx_switch_and_port_id(
context.session, port['id'])
nsx_router_id = nsx_db.get_nsx_router_id(context.session,
router_id)
result = nsxlib.create_logical_router_port(
logical_router_id=nsx_router_id,
logical_switch_port_id=nsx_port_id,
resource_type="LogicalRouterDownLinkPort",
cidr_length=24, ip_address=subnet['gateway_ip'])
interface_info['port_id'] = port['id']
del interface_info['subnet_id']
result = super(NsxV3Plugin, self).add_router_interface(
context, router_id, interface_info)
return result
def add_router_interface(self, context, router_id, interface_info):
# NOTE(arosen): I think there is a bug here since I believe we
# can also get a port or ip here....
subnet = self.get_subnet(context, interface_info["subnet_id"])
port = {
"port": {
"network_id": subnet["network_id"],
"name": "",
"admin_state_up": True,
"device_id": "",
"device_owner": l3_db.DEVICE_OWNER_ROUTER_INTF,
"mac_address": attributes.ATTR_NOT_SPECIFIED,
"fixed_ips": [{"subnet_id": subnet["id"], "ip_address": subnet["gateway_ip"]}],
}
}
port = self.create_port(context, port)
_net_id, nsx_port_id = nsx_db.get_nsx_switch_and_port_id(context.session, port["id"])
nsx_router_id = nsx_db.get_nsx_router_id(context.session, router_id)
result = nsxlib.create_logical_router_port(
logical_router_id=nsx_router_id,
logical_switch_port_id=nsx_port_id,
resource_type="LogicalRouterDownLinkPort",
cidr_length=24,
ip_address=subnet["gateway_ip"],
)
interface_info["port_id"] = port["id"]
del interface_info["subnet_id"]
result = super(NsxV3Plugin, self).add_router_interface(context, router_id, interface_info)
return result
