d7493a223f
Most of this code will probably stay with us for quite some time, so let's make things easier and consider them as our way of doing RPC. blueprint oslo-messaging Change-Id: Iaf353b23f9c54b82d1e02a6bd5a5960cec827c88
269 lines
11 KiB
Python
269 lines
11 KiB
Python
# Copyright 2012 Isaku Yamahata <yamahata at private email ne jp>
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# <yamahata at valinux co jp>
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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# @author: Isaku Yamahata
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from oslo.config import cfg
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from ryu.app import client
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from ryu.app import rest_nw_id
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from neutron.agent import securitygroups_rpc as sg_rpc
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from neutron.common import constants as q_const
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from neutron.common import exceptions as n_exc
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from neutron.common import rpc as n_rpc
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from neutron.common import topics
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from neutron.db import api as db
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from neutron.db import db_base_plugin_v2
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from neutron.db import dhcp_rpc_base
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from neutron.db import external_net_db
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from neutron.db import extraroute_db
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from neutron.db import l3_gwmode_db
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from neutron.db import l3_rpc_base
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from neutron.db import models_v2
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from neutron.db import portbindings_base
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from neutron.db import securitygroups_rpc_base as sg_db_rpc
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from neutron.extensions import portbindings
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from neutron.openstack.common import excutils
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from neutron.openstack.common import log as logging
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from neutron.plugins.common import constants as svc_constants
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from neutron.plugins.ryu.common import config # noqa
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from neutron.plugins.ryu.db import api_v2 as db_api_v2
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LOG = logging.getLogger(__name__)
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class RyuRpcCallbacks(n_rpc.RpcCallback,
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dhcp_rpc_base.DhcpRpcCallbackMixin,
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l3_rpc_base.L3RpcCallbackMixin,
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sg_db_rpc.SecurityGroupServerRpcCallbackMixin):
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RPC_API_VERSION = '1.1'
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def __init__(self, ofp_rest_api_addr):
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super(RyuRpcCallbacks, self).__init__()
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self.ofp_rest_api_addr = ofp_rest_api_addr
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def get_ofp_rest_api(self, context, **kwargs):
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LOG.debug(_("get_ofp_rest_api: %s"), self.ofp_rest_api_addr)
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return self.ofp_rest_api_addr
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@classmethod
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def get_port_from_device(cls, device):
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port = db_api_v2.get_port_from_device(device)
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if port:
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port['device'] = device
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return port
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class AgentNotifierApi(n_rpc.RpcProxy,
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sg_rpc.SecurityGroupAgentRpcApiMixin):
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BASE_RPC_API_VERSION = '1.0'
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def __init__(self, topic):
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super(AgentNotifierApi, self).__init__(
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topic=topic, default_version=self.BASE_RPC_API_VERSION)
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self.topic_port_update = topics.get_topic_name(topic,
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topics.PORT,
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topics.UPDATE)
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def port_update(self, context, port):
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self.fanout_cast(context,
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self.make_msg('port_update', port=port),
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topic=self.topic_port_update)
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class RyuNeutronPluginV2(db_base_plugin_v2.NeutronDbPluginV2,
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external_net_db.External_net_db_mixin,
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extraroute_db.ExtraRoute_db_mixin,
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l3_gwmode_db.L3_NAT_db_mixin,
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sg_db_rpc.SecurityGroupServerRpcMixin,
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portbindings_base.PortBindingBaseMixin):
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_supported_extension_aliases = ["external-net", "router", "ext-gw-mode",
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"extraroute", "security-group",
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"binding", "quotas"]
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@property
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def supported_extension_aliases(self):
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if not hasattr(self, '_aliases'):
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aliases = self._supported_extension_aliases[:]
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sg_rpc.disable_security_group_extension_by_config(aliases)
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self._aliases = aliases
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return self._aliases
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def __init__(self, configfile=None):
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super(RyuNeutronPluginV2, self).__init__()
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self.base_binding_dict = {
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portbindings.VIF_TYPE: portbindings.VIF_TYPE_OVS,
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portbindings.VIF_DETAILS: {
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# TODO(rkukura): Replace with new VIF security details
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portbindings.CAP_PORT_FILTER:
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'security-group' in self.supported_extension_aliases,
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portbindings.OVS_HYBRID_PLUG: True
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}
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}
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portbindings_base.register_port_dict_function()
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self.tunnel_key = db_api_v2.TunnelKey(
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cfg.CONF.OVS.tunnel_key_min, cfg.CONF.OVS.tunnel_key_max)
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self.ofp_api_host = cfg.CONF.OVS.openflow_rest_api
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if not self.ofp_api_host:
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raise n_exc.Invalid(_('Invalid configuration. check ryu.ini'))
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self.client = client.OFPClient(self.ofp_api_host)
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self.tun_client = client.TunnelClient(self.ofp_api_host)
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self.iface_client = client.NeutronIfaceClient(self.ofp_api_host)
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for nw_id in rest_nw_id.RESERVED_NETWORK_IDS:
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if nw_id != rest_nw_id.NW_ID_UNKNOWN:
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self.client.update_network(nw_id)
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self._setup_rpc()
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# register known all network list on startup
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self._create_all_tenant_network()
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def _setup_rpc(self):
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self.service_topics = {svc_constants.CORE: topics.PLUGIN,
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svc_constants.L3_ROUTER_NAT: topics.L3PLUGIN}
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self.conn = n_rpc.create_connection(new=True)
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self.notifier = AgentNotifierApi(topics.AGENT)
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self.endpoints = [RyuRpcCallbacks(self.ofp_api_host)]
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for svc_topic in self.service_topics.values():
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self.conn.create_consumer(svc_topic, self.endpoints, fanout=False)
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self.conn.consume_in_threads()
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def _create_all_tenant_network(self):
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for net in db_api_v2.network_all_tenant_list():
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self.client.update_network(net.id)
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for tun in self.tunnel_key.all_list():
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self.tun_client.update_tunnel_key(tun.network_id, tun.tunnel_key)
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session = db.get_session()
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for port in session.query(models_v2.Port):
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self.iface_client.update_network_id(port.id, port.network_id)
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def _client_create_network(self, net_id, tunnel_key):
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self.client.create_network(net_id)
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self.tun_client.create_tunnel_key(net_id, tunnel_key)
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def _client_delete_network(self, net_id):
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RyuNeutronPluginV2._safe_client_delete_network(self.safe_reference,
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net_id)
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@staticmethod
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def _safe_client_delete_network(safe_reference, net_id):
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# Avoid handing naked plugin references to the client. When
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# the client is mocked for testing, such references can
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# prevent the plugin from being deallocated.
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client.ignore_http_not_found(
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lambda: safe_reference.client.delete_network(net_id))
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client.ignore_http_not_found(
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lambda: safe_reference.tun_client.delete_tunnel_key(net_id))
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def create_network(self, context, network):
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session = context.session
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with session.begin(subtransactions=True):
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#set up default security groups
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tenant_id = self._get_tenant_id_for_create(
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context, network['network'])
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self._ensure_default_security_group(context, tenant_id)
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net = super(RyuNeutronPluginV2, self).create_network(context,
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network)
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self._process_l3_create(context, net, network['network'])
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tunnel_key = self.tunnel_key.allocate(session, net['id'])
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try:
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self._client_create_network(net['id'], tunnel_key)
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except Exception:
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with excutils.save_and_reraise_exception():
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self._client_delete_network(net['id'])
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return net
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def update_network(self, context, id, network):
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session = context.session
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with session.begin(subtransactions=True):
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net = super(RyuNeutronPluginV2, self).update_network(context, id,
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network)
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self._process_l3_update(context, net, network['network'])
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return net
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def delete_network(self, context, id):
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self._client_delete_network(id)
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session = context.session
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with session.begin(subtransactions=True):
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self.tunnel_key.delete(session, id)
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self._process_l3_delete(context, id)
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super(RyuNeutronPluginV2, self).delete_network(context, id)
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def create_port(self, context, port):
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session = context.session
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port_data = port['port']
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with session.begin(subtransactions=True):
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self._ensure_default_security_group_on_port(context, port)
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sgids = self._get_security_groups_on_port(context, port)
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port = super(RyuNeutronPluginV2, self).create_port(context, port)
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self._process_portbindings_create_and_update(context,
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port_data,
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port)
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self._process_port_create_security_group(
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context, port, sgids)
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self.notify_security_groups_member_updated(context, port)
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self.iface_client.create_network_id(port['id'], port['network_id'])
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return port
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def delete_port(self, context, id, l3_port_check=True):
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# if needed, check to see if this is a port owned by
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# and l3-router. If so, we should prevent deletion.
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if l3_port_check:
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self.prevent_l3_port_deletion(context, id)
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with context.session.begin(subtransactions=True):
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self.disassociate_floatingips(context, id)
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port = self.get_port(context, id)
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self._delete_port_security_group_bindings(context, id)
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super(RyuNeutronPluginV2, self).delete_port(context, id)
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self.notify_security_groups_member_updated(context, port)
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def update_port(self, context, id, port):
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deleted = port['port'].get('deleted', False)
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session = context.session
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need_port_update_notify = False
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with session.begin(subtransactions=True):
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original_port = super(RyuNeutronPluginV2, self).get_port(
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context, id)
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updated_port = super(RyuNeutronPluginV2, self).update_port(
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context, id, port)
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self._process_portbindings_create_and_update(context,
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port['port'],
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updated_port)
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need_port_update_notify = self.update_security_group_on_port(
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context, id, port, original_port, updated_port)
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need_port_update_notify |= self.is_security_group_member_updated(
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context, original_port, updated_port)
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need_port_update_notify |= (original_port['admin_state_up'] !=
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updated_port['admin_state_up'])
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if need_port_update_notify:
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self.notifier.port_update(context, updated_port)
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if deleted:
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db_api_v2.set_port_status(session, id, q_const.PORT_STATUS_DOWN)
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return updated_port
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