vmware-nsx/neutron/plugins/ryu/ryu_neutron_plugin.py
Yong Sheng Gong 76fc0addc9 refactor port binding codes
Bug #1195047

This patch:
1. removes the iteration in get_ports to call extend_dict_binding
2. uses a unified way for plugins to do this kind of stuff

ml2 will enhance the binding so that it can have different binding
for port according to port's host.
mlnx and bigswitch are also exceptions due to the dynamic binding info.

Change-Id: I5a77eb7395e14482a856e033f536f72a1bf82e06
2013-07-26 23:04:51 +08:00

254 lines
10 KiB
Python

# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2012 Isaku Yamahata <yamahata at private email ne jp>
# <yamahata at valinux co jp>
# All Rights Reserved.
#
# 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: Isaku Yamahata
from oslo.config import cfg
from ryu.app import client
from ryu.app import rest_nw_id
from neutron.agent import securitygroups_rpc as sg_rpc
from neutron.common import constants as q_const
from neutron.common import exceptions as q_exc
from neutron.common import rpc as q_rpc
from neutron.common import topics
from neutron.db import api as db
from neutron.db import db_base_plugin_v2
from neutron.db import dhcp_rpc_base
from neutron.db import extraroute_db
from neutron.db import l3_gwmode_db
from neutron.db import l3_rpc_base
from neutron.db import models_v2
from neutron.db import portbindings_base
from neutron.db import securitygroups_rpc_base as sg_db_rpc
from neutron.extensions import portbindings
from neutron.openstack.common import log as logging
from neutron.openstack.common import rpc
from neutron.openstack.common.rpc import proxy
from neutron.plugins.ryu.common import config # noqa
from neutron.plugins.ryu.db import api_v2 as db_api_v2
LOG = logging.getLogger(__name__)
class RyuRpcCallbacks(dhcp_rpc_base.DhcpRpcCallbackMixin,
l3_rpc_base.L3RpcCallbackMixin,
sg_db_rpc.SecurityGroupServerRpcCallbackMixin):
RPC_API_VERSION = '1.1'
def __init__(self, ofp_rest_api_addr):
self.ofp_rest_api_addr = ofp_rest_api_addr
def create_rpc_dispatcher(self):
return q_rpc.PluginRpcDispatcher([self])
def get_ofp_rest_api(self, context, **kwargs):
LOG.debug(_("get_ofp_rest_api: %s"), self.ofp_rest_api_addr)
return self.ofp_rest_api_addr
@classmethod
def get_port_from_device(cls, device):
port = db_api_v2.get_port_from_device(device)
if port:
port['device'] = device
return port
class AgentNotifierApi(proxy.RpcProxy,
sg_rpc.SecurityGroupAgentRpcApiMixin):
BASE_RPC_API_VERSION = '1.0'
def __init__(self, topic):
super(AgentNotifierApi, self).__init__(
topic=topic, default_version=self.BASE_RPC_API_VERSION)
self.topic_port_update = topics.get_topic_name(topic,
topics.PORT,
topics.UPDATE)
def port_update(self, context, port):
self.fanout_cast(context,
self.make_msg('port_update', port=port),
topic=self.topic_port_update)
class RyuNeutronPluginV2(db_base_plugin_v2.NeutronDbPluginV2,
extraroute_db.ExtraRoute_db_mixin,
l3_gwmode_db.L3_NAT_db_mixin,
sg_db_rpc.SecurityGroupServerRpcMixin,
portbindings_base.PortBindingBaseMixin):
_supported_extension_aliases = ["router", "ext-gw-mode",
"extraroute", "security-group",
"binding"]
@property
def supported_extension_aliases(self):
if not hasattr(self, '_aliases'):
aliases = self._supported_extension_aliases[:]
sg_rpc.disable_security_group_extension_if_noop_driver(aliases)
self._aliases = aliases
return self._aliases
def __init__(self, configfile=None):
self.base_binding_dict = {
portbindings.VIF_TYPE: portbindings.VIF_TYPE_OVS,
portbindings.CAPABILITIES: {
portbindings.CAP_PORT_FILTER:
'security-group' in self.supported_extension_aliases}}
portbindings_base.register_port_dict_function()
db.configure_db()
self.tunnel_key = db_api_v2.TunnelKey(
cfg.CONF.OVS.tunnel_key_min, cfg.CONF.OVS.tunnel_key_max)
self.ofp_api_host = cfg.CONF.OVS.openflow_rest_api
if not self.ofp_api_host:
raise q_exc.Invalid(_('Invalid configuration. check ryu.ini'))
self.client = client.OFPClient(self.ofp_api_host)
self.tun_client = client.TunnelClient(self.ofp_api_host)
self.iface_client = client.NeutronIfaceClient(self.ofp_api_host)
for nw_id in rest_nw_id.RESERVED_NETWORK_IDS:
if nw_id != rest_nw_id.NW_ID_UNKNOWN:
self.client.update_network(nw_id)
self._setup_rpc()
# register known all network list on startup
self._create_all_tenant_network()
def _setup_rpc(self):
self.conn = rpc.create_connection(new=True)
self.notifier = AgentNotifierApi(topics.AGENT)
self.callbacks = RyuRpcCallbacks(self.ofp_api_host)
self.dispatcher = self.callbacks.create_rpc_dispatcher()
self.conn.create_consumer(topics.PLUGIN, self.dispatcher, fanout=False)
self.conn.consume_in_thread()
def _create_all_tenant_network(self):
for net in db_api_v2.network_all_tenant_list():
self.client.update_network(net.id)
for tun in self.tunnel_key.all_list():
self.tun_client.update_tunnel_key(tun.network_id, tun.tunnel_key)
session = db.get_session()
for port in session.query(models_v2.Port):
self.iface_client.update_network_id(port.id, port.network_id)
def _client_create_network(self, net_id, tunnel_key):
self.client.create_network(net_id)
self.tun_client.create_tunnel_key(net_id, tunnel_key)
def _client_delete_network(self, net_id):
client.ignore_http_not_found(
lambda: self.client.delete_network(net_id))
client.ignore_http_not_found(
lambda: self.tun_client.delete_tunnel_key(net_id))
def create_network(self, context, network):
session = context.session
with session.begin(subtransactions=True):
#set up default security groups
tenant_id = self._get_tenant_id_for_create(
context, network['network'])
self._ensure_default_security_group(context, tenant_id)
net = super(RyuNeutronPluginV2, self).create_network(context,
network)
self._process_l3_create(context, net, network['network'])
tunnel_key = self.tunnel_key.allocate(session, net['id'])
try:
self._client_create_network(net['id'], tunnel_key)
except Exception:
self._client_delete_network(net['id'])
raise
return net
def update_network(self, context, id, network):
session = context.session
with session.begin(subtransactions=True):
net = super(RyuNeutronPluginV2, self).update_network(context, id,
network)
self._process_l3_update(context, net, network['network'])
return net
def delete_network(self, context, id):
self._client_delete_network(id)
session = context.session
with session.begin(subtransactions=True):
self.tunnel_key.delete(session, id)
super(RyuNeutronPluginV2, self).delete_network(context, id)
def create_port(self, context, port):
session = context.session
port_data = port['port']
with session.begin(subtransactions=True):
self._ensure_default_security_group_on_port(context, port)
sgids = self._get_security_groups_on_port(context, port)
port = super(RyuNeutronPluginV2, self).create_port(context, port)
self._process_portbindings_create_and_update(context,
port_data,
port)
self._process_port_create_security_group(
context, port, sgids)
self.notify_security_groups_member_updated(context, port)
self.iface_client.create_network_id(port['id'], port['network_id'])
return port
def delete_port(self, context, id, l3_port_check=True):
# if needed, check to see if this is a port owned by
# and l3-router. If so, we should prevent deletion.
if l3_port_check:
self.prevent_l3_port_deletion(context, id)
with context.session.begin(subtransactions=True):
self.disassociate_floatingips(context, id)
port = self.get_port(context, id)
self._delete_port_security_group_bindings(context, id)
super(RyuNeutronPluginV2, self).delete_port(context, id)
self.notify_security_groups_member_updated(context, port)
def update_port(self, context, id, port):
deleted = port['port'].get('deleted', False)
session = context.session
need_port_update_notify = False
with session.begin(subtransactions=True):
original_port = super(RyuNeutronPluginV2, self).get_port(
context, id)
updated_port = super(RyuNeutronPluginV2, self).update_port(
context, id, port)
self._process_portbindings_create_and_update(context,
port['port'],
updated_port)
need_port_update_notify = self.update_security_group_on_port(
context, id, port, original_port, updated_port)
need_port_update_notify |= self.is_security_group_member_updated(
context, original_port, updated_port)
need_port_update_notify |= (original_port['admin_state_up'] !=
updated_port['admin_state_up'])
if need_port_update_notify:
self.notifier.port_update(context, updated_port)
if deleted:
db_api_v2.set_port_status(session, id, q_const.PORT_STATUS_DOWN)
return updated_port