RETIRED, Tricircle is to provide networking automation across Neutron.
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tricircle/tricircle/network/central_fc_driver.py

135 lines
5.5 KiB

# Copyright 2017 Huawei Technologies Co., Ltd.
# 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.
from oslo_log import helpers as log_helpers
from oslo_log import log
from networking_sfc.db import sfc_db
from networking_sfc.services.flowclassifier.drivers import base as fc_driver
from neutron_lib.plugins import directory
from neutronclient.common import exceptions as client_exceptions
import tricircle.common.client as t_client
import tricircle.common.constants as t_constants
import tricircle.common.context as t_context
from tricircle.common import xrpcapi
import tricircle.db.api as db_api
from tricircle.network import central_plugin
import tricircle.network.exceptions as n_exceptions
LOG = log.getLogger(__name__)
class TricircleFcDriver(fc_driver.FlowClassifierDriverBase):
def __init__(self):
self.xjob_handler = xrpcapi.XJobAPI()
self.clients = {}
def initialize(self):
pass
def _get_client(self, region_name):
if region_name not in self.clients:
self.clients[region_name] = t_client.Client(region_name)
return self.clients[region_name]
@log_helpers.log_method_call
def create_flow_classifier(self, context):
pass
@log_helpers.log_method_call
def update_flow_classifier(self, context):
pass
@log_helpers.log_method_call
def delete_flow_classifier(self, context):
t_ctx = t_context.get_context_from_neutron_context(
context._plugin_context)
flowclassifier_id = context.current['id']
mappings = db_api.get_bottom_mappings_by_top_id(
t_ctx, flowclassifier_id, t_constants.RT_FLOW_CLASSIFIER)
for b_pod, b_classifier_id in mappings:
b_region_name = b_pod['region_name']
b_client = self._get_client(b_region_name)
try:
b_client.delete_flow_classifiers(t_ctx, b_classifier_id)
except client_exceptions.NotFound:
LOG.debug(('flow classifier: %(classifier_id)s not found, '
'region name: %(name)s'),
{'classifier_id': flowclassifier_id,
'name': b_region_name})
db_api.delete_mappings_by_bottom_id(t_ctx, b_classifier_id)
def delete_flow_classifier_precommit(self, context):
t_ctx = t_context.get_context_from_neutron_context(
context._plugin_context)
flowclassifier_id = context.current['id']
db_api.create_recycle_resource(
t_ctx, flowclassifier_id, t_constants.RT_FLOW_CLASSIFIER,
t_ctx.project_id)
def _get_chain_id_by_flowclassifier_id(
self, context, fc_plugin, flowclassifier_id):
chain_classifier_assoc = fc_plugin._model_query(
context, sfc_db.ChainClassifierAssoc).filter_by(
flowclassifier_id=flowclassifier_id).first()
if chain_classifier_assoc:
return chain_classifier_assoc['portchain_id']
return None
def _get_net_id_by_portchain_id(self, context, portchain_id):
sfc_plugin = directory.get_plugin('sfc')
port_chain = sfc_plugin.get_port_chain(context, portchain_id)
if not port_chain:
raise n_exceptions.PortChainNotFound(portchain_id=portchain_id)
port_pairs = sfc_plugin.get_port_pairs(
context, {'portpairgroup_id': port_chain['port_pair_groups']})
if not port_pairs:
raise n_exceptions.PortPairsNotFoundForPortPairGroup(
portpairgroup_id=port_chain['port_pair_groups'])
core_plugin = directory.get_plugin()
port = super(central_plugin.TricirclePlugin, core_plugin
).get_port(context, port_pairs[0]['ingress'])
if not port:
raise n_exceptions.PortNotFound(port_id=port_pairs[0]['ingress'])
return port['network_id']
def update_flow_classifier_precommit(self, context):
plugin_context = context._plugin_context
t_ctx = t_context.get_context_from_neutron_context(plugin_context)
flowclassifier = context.current
mappings = db_api.get_bottom_mappings_by_top_id(
t_ctx, flowclassifier['id'], t_constants.RT_FLOW_CLASSIFIER)
if mappings:
portchain_id = self._get_chain_id_by_flowclassifier_id(
plugin_context, context._plugin, flowclassifier['id'])
if not portchain_id:
raise n_exceptions.PortChainNotFoundForFlowClassifier(
flowclassifier_id=flowclassifier['id'])
net_id = self._get_net_id_by_portchain_id(plugin_context,
portchain_id)
if not net_id:
raise n_exceptions.NetNotFoundForPortChain(
portchain_id=portchain_id)
self.xjob_handler.sync_service_function_chain(
t_ctx, flowclassifier['project_id'], portchain_id,
net_id, t_constants.POD_NOT_SPECIFIED)
@log_helpers.log_method_call
def create_flow_classifier_precommit(self, context):
pass