# Copyright 2016 Red Hat, 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. import copy from neutron_lib.agent import topics from neutron_lib.plugins import directory from oslo_config import cfg from oslo_db import options as db_options from oslo_log import log as logging from neutron.conf.agent import securitygroups_rpc from neutron.conf.plugins.ml2.drivers.ovn import ovn_conf from neutron import manager from neutron import opts as neutron_options from neutron.plugins.ml2.drivers.ovn import db_migration from neutron.plugins.ml2.drivers.ovn.mech_driver import mech_driver from neutron.plugins.ml2.drivers.ovn.mech_driver.ovsdb import impl_idl_ovn from neutron.plugins.ml2.drivers.ovn.mech_driver.ovsdb import ovn_db_sync from neutron.plugins.ml2.drivers.ovn.mech_driver.ovsdb import worker from neutron.plugins.ml2 import plugin as ml2_plugin LOG = logging.getLogger(__name__) class Ml2Plugin(ml2_plugin.Ml2Plugin): def _setup_dhcp(self): pass def _start_rpc_notifiers(self): # Override the notifier so that when calling the ML2 plugin to create # resources, it doesn't crash trying to notify subscribers. self.notifier = AgentNotifierApi(topics.AGENT) class OVNMechanismDriver(mech_driver.OVNMechanismDriver): def subscribe(self): pass def post_fork_initialize(self, resource, event, trigger, **kwargs): pass @property def ovn_client(self): return self._ovn_client def _clean_hash_ring(self): """Don't clean the hash ring. If this method was not overriden, cleanup would be performed when calling the db sync and running neutron server would lose all the nodes from the ring. """ # Since we are not using the ovn mechanism driver while syncing, # we override the post and pre commit methods so that original ones are # not called. def create_port_precommit(self, context): pass def create_port_postcommit(self, context): port = context.current self.ovn_client.create_port(context._plugin_context, port) def update_port_precommit(self, context): pass def update_port_postcommit(self, context): port = context.current original_port = context.original self.ovn_client.update_port(context._plugin_context, port, original_port) def delete_port_precommit(self, context): pass def delete_port_postcommit(self, context): port = copy.deepcopy(context.current) port['network'] = context.network.current # FIXME(lucasagomes): PortContext does not have a session, therefore # we need to use the _plugin_context attribute. self.ovn_client.delete_port(context._plugin_context, port['id']) class AgentNotifierApi(object): """Default Agent Notifier class for ovn-db-sync-util. This class implements empty methods so that when creating resources in the core plugin, the original ones don't get called and don't interfere with the syncing process. """ def __init__(self, topic): self.topic = topic self.topic_network_delete = topics.get_topic_name(topic, topics.NETWORK, topics.DELETE) self.topic_port_update = topics.get_topic_name(topic, topics.PORT, topics.UPDATE) self.topic_port_delete = topics.get_topic_name(topic, topics.PORT, topics.DELETE) self.topic_network_update = topics.get_topic_name(topic, topics.NETWORK, topics.UPDATE) def network_delete(self, context, network_id): pass def port_update(self, context, port, network_type, segmentation_id, physical_network): pass def port_delete(self, context, port_id): pass def network_update(self, context, network): pass def security_groups_provider_updated(self, context, devices_to_udpate=None): pass def setup_conf(): conf = cfg.CONF ml2_group, ml2_opts = neutron_options.list_ml2_conf_opts()[0] cfg.CONF.register_cli_opts(ml2_opts, ml2_group) cfg.CONF.register_cli_opts(securitygroups_rpc.security_group_opts, 'SECURITYGROUP') ovn_group, ovn_opts = ovn_conf.list_opts()[0] cfg.CONF.register_cli_opts(ovn_opts, group=ovn_group) db_group, neutron_db_opts = db_options.list_opts()[0] cfg.CONF.register_cli_opts(neutron_db_opts, db_group) # Override Nova notify configuration LP: #1882020 cfg.CONF.set_override('notify_nova_on_port_status_changes', False) cfg.CONF.set_override('notify_nova_on_port_data_changes', False) return conf def main(): """Main method for syncing neutron networks and ports with ovn nb db. This script provides a utility for syncing the OVN Northbound Database with the Neutron database. This script is used for the migration from ML2/OVS to ML2/OVN. """ conf = setup_conf() # if no config file is passed or no configuration options are passed # then load configuration from /etc/neutron/neutron.conf try: conf(project='neutron') except TypeError: LOG.error('Error parsing the configuration values. Please verify.') return logging.setup(conf, 'neutron_ovn_db_sync_util') LOG.info('Started Neutron OVN db sync') mode = ovn_conf.get_ovn_neutron_sync_mode() # Migrate mode will run as repair mode in the synchronizer migrate = False if mode == ovn_conf.MIGRATE_MODE: mode = ovn_db_sync.SYNC_MODE_REPAIR migrate = True if mode not in [ovn_db_sync.SYNC_MODE_LOG, ovn_db_sync.SYNC_MODE_REPAIR]: LOG.error( 'Invalid sync mode : ["%s"]. Should be "log" or "repair"', mode) return # Validate and modify core plugin and ML2 mechanism drivers for syncing. if (cfg.CONF.core_plugin.endswith('.Ml2Plugin') or cfg.CONF.core_plugin == 'ml2'): cfg.CONF.core_plugin = ( 'neutron.cmd.ovn.neutron_ovn_db_sync_util.Ml2Plugin') if not cfg.CONF.ml2.mechanism_drivers: LOG.error('please use --config-file to specify ' 'neutron and ml2 configuration file.') return if 'ovn' not in cfg.CONF.ml2.mechanism_drivers: LOG.error('No "ovn" mechanism driver found : "%s".', cfg.CONF.ml2.mechanism_drivers) return cfg.CONF.set_override('mechanism_drivers', ['ovn-sync'], 'ml2') conf.service_plugins = [ 'neutron.services.ovn_l3.plugin.OVNL3RouterPlugin', 'neutron.services.segments.plugin.Plugin', 'port_forwarding', ] else: LOG.error('Invalid core plugin : ["%s"].', cfg.CONF.core_plugin) return mech_worker = worker.MaintenanceWorker try: ovn_api = impl_idl_ovn.OvsdbNbOvnIdl.from_worker(mech_worker) except RuntimeError: LOG.error('Invalid --ovn-ovn_nb_connection parameter provided.') return try: ovn_sb_api = impl_idl_ovn.OvsdbSbOvnIdl.from_worker(mech_worker) except RuntimeError: LOG.error('Invalid --ovn-ovn_sb_connection parameter provided.') return manager.init() core_plugin = directory.get_plugin() driver = core_plugin.mechanism_manager.mech_drivers['ovn-sync'] # The L3 code looks for the OVSDB connection on the 'ovn' driver # and will fail with a KeyError if it isn't there core_plugin.mechanism_manager.mech_drivers['ovn'] = driver ovn_driver = driver.obj ovn_driver.nb_ovn = ovn_api ovn_driver.sb_ovn = ovn_sb_api synchronizer = ovn_db_sync.OvnNbSynchronizer( core_plugin, ovn_api, ovn_sb_api, mode, ovn_driver) LOG.info('Sync for Northbound db started with mode : %s', mode) synchronizer.do_sync() LOG.info('Sync completed for Northbound db') sb_synchronizer = ovn_db_sync.OvnSbSynchronizer( core_plugin, ovn_sb_api, ovn_driver) LOG.info('Sync for Southbound db started with mode : %s', mode) sb_synchronizer.do_sync() LOG.info('Sync completed for Southbound db') if migrate: LOG.info("Migrating Neutron database from OVS to OVN") db_migration.migrate_neutron_database_to_ovn(core_plugin) LOG.info("Neutron database migration from OVS to OVN completed")