e0242d25bc
This patchset introduces basic ml2 driver for nuage. In Juno release, mechanism driver will support basic L2 functionality as a stepping stone to enhance it in later releases. Implements blueprint: ml2-mech-driver-nuage Change-Id: Idae4f88f3d21526f377ec0f81377cb90b9fc14e4
107 lines
4.4 KiB
Python
107 lines
4.4 KiB
Python
# Copyright 2014 Alcatel-Lucent USA 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.
|
|
#
|
|
# @author: Ronak Shah, Nuage Networks, Alcatel-Lucent USA Inc.
|
|
|
|
|
|
import netaddr
|
|
from oslo.config import cfg
|
|
|
|
from neutron.common import constants as n_consts
|
|
from neutron.extensions import portbindings
|
|
from neutron.openstack.common import log
|
|
from neutron.plugins.common import constants
|
|
from neutron.plugins.ml2 import driver_api as api
|
|
from neutron.plugins.nuage.common import config
|
|
from neutron.plugins.nuage.common import constants as nuage_const
|
|
from neutron.plugins.nuage import plugin
|
|
|
|
LOG = log.getLogger(__name__)
|
|
|
|
|
|
class NuageMechanismDriver(plugin.NuagePlugin,
|
|
api.MechanismDriver):
|
|
|
|
def initialize(self):
|
|
LOG.debug('Initializing driver')
|
|
config.nuage_register_cfg_opts()
|
|
self.nuageclient_init()
|
|
self.vif_type = portbindings.VIF_TYPE_OVS
|
|
self.vif_details = {portbindings.CAP_PORT_FILTER: False}
|
|
self.default_np_id = self.nuageclient.get_net_partition_id_by_name(
|
|
cfg.CONF.RESTPROXY.default_net_partition_name)
|
|
LOG.debug('Initializing complete')
|
|
|
|
def create_subnet_postcommit(self, context):
|
|
subnet = context.current
|
|
net = netaddr.IPNetwork(subnet['cidr'])
|
|
params = {
|
|
'netpart_id': self.default_np_id,
|
|
'tenant_id': subnet['tenant_id'],
|
|
'net': net
|
|
}
|
|
self.nuageclient.create_subnet(subnet, params)
|
|
|
|
def delete_subnet_postcommit(self, context):
|
|
subnet = context.current
|
|
self.nuageclient.delete_subnet(subnet['id'])
|
|
|
|
def update_port_postcommit(self, context):
|
|
port = context.current
|
|
port_prefix = nuage_const.NOVA_PORT_OWNER_PREF
|
|
# Check two things prior to proceeding with
|
|
# talking to backend.
|
|
# 1) binding has happened successfully.
|
|
# 2) Its a VM port.
|
|
if ((not context.original_bound_segment and
|
|
context.bound_segment) and
|
|
port['device_owner'].startswith(port_prefix)):
|
|
np_name = cfg.CONF.RESTPROXY.default_net_partition_name
|
|
self._create_update_port(context._plugin_context,
|
|
port, np_name)
|
|
|
|
def delete_port_postcommit(self, context):
|
|
port = context.current
|
|
np_name = cfg.CONF.RESTPROXY.default_net_partition_name
|
|
self._delete_nuage_vport(context._plugin_context,
|
|
port, np_name)
|
|
|
|
def bind_port(self, context):
|
|
LOG.debug("Attempting to bind port %(port)s on "
|
|
"network %(network)s",
|
|
{'port': context.current['id'],
|
|
'network': context.network.current['id']})
|
|
for segment in context.network.network_segments:
|
|
if self._check_segment(segment):
|
|
context.set_binding(segment[api.ID],
|
|
self.vif_type,
|
|
self.vif_details,
|
|
status=n_consts.PORT_STATUS_ACTIVE)
|
|
LOG.debug("Bound using segment: %s", segment)
|
|
return
|
|
else:
|
|
LOG.error(_("Refusing to bind port for segment ID %(id)s, "
|
|
"segment %(seg)s, phys net %(physnet)s, and "
|
|
"network type %(nettype)s"),
|
|
{'id': segment[api.ID],
|
|
'seg': segment[api.SEGMENTATION_ID],
|
|
'physnet': segment[api.PHYSICAL_NETWORK],
|
|
'nettype': segment[api.NETWORK_TYPE]})
|
|
|
|
def _check_segment(self, segment):
|
|
"""Verify a segment is valid for the Nuage MechanismDriver."""
|
|
network_type = segment[api.NETWORK_TYPE]
|
|
return network_type in [constants.TYPE_LOCAL, constants.TYPE_GRE,
|
|
constants.TYPE_VXLAN, constants.TYPE_VLAN]
|