1106 lines
52 KiB
Python
1106 lines
52 KiB
Python
# 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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import abc
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from datetime import datetime
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import itertools
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from eventlet import greenthread
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from neutron_lib.api.definitions import l3
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from neutron_lib.api.definitions import segment as segment_def
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from neutron_lib import constants
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from neutron_lib import context
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from neutron_lib import exceptions as n_exc
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from neutron_lib.plugins import constants as plugin_constants
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from neutron_lib.plugins import directory
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from neutron_lib.utils import helpers
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from oslo_log import log
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import six
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from neutron.common.ovn import acl as acl_utils
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from neutron.common.ovn import constants as ovn_const
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from neutron.common.ovn import utils
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from neutron.conf.plugins.ml2.drivers.ovn import ovn_conf
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from neutron import manager
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from neutron.plugins.ml2.drivers.ovn.mech_driver.ovsdb import ovn_client
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from neutron.services.segments import db as segments_db
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LOG = log.getLogger(__name__)
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SYNC_MODE_OFF = 'off'
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SYNC_MODE_LOG = 'log'
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SYNC_MODE_REPAIR = 'repair'
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@six.add_metaclass(abc.ABCMeta)
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class OvnDbSynchronizer(object):
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def __init__(self, core_plugin, ovn_api, ovn_driver):
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self.ovn_driver = ovn_driver
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self.ovn_api = ovn_api
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self.core_plugin = core_plugin
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def sync(self, delay_seconds=10):
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self._gt = greenthread.spawn_after_local(delay_seconds, self.do_sync)
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@abc.abstractmethod
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def do_sync(self):
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"""Method to sync the OVN DB."""
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def stop(self):
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try:
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self._gt.kill()
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except AttributeError:
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# Haven't started syncing
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pass
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class OvnNbSynchronizer(OvnDbSynchronizer):
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"""Synchronizer class for NB."""
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def __init__(self, core_plugin, ovn_api, sb_ovn, mode, ovn_driver):
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super(OvnNbSynchronizer, self).__init__(
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core_plugin, ovn_api, ovn_driver)
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self.mode = mode
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self.l3_plugin = directory.get_plugin(plugin_constants.L3)
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self._ovn_client = ovn_client.OVNClient(ovn_api, sb_ovn)
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self.segments_plugin = directory.get_plugin('segments')
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if not self.segments_plugin:
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self.segments_plugin = (
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manager.NeutronManager.load_class_for_provider(
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'neutron.service_plugins', 'segments')())
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def stop(self):
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if utils.is_ovn_l3(self.l3_plugin):
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self.l3_plugin._ovn.ovsdb_connection.stop()
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self.l3_plugin._sb_ovn.ovsdb_connection.stop()
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super(OvnNbSynchronizer, self).stop()
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def do_sync(self):
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if self.mode == SYNC_MODE_OFF:
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LOG.debug("Neutron sync mode is off")
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return
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LOG.debug("Starting OVN-Northbound DB sync process")
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ctx = context.get_admin_context()
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self.sync_port_groups(ctx)
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self.sync_networks_ports_and_dhcp_opts(ctx)
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self.sync_port_dns_records(ctx)
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self.sync_acls(ctx)
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self.sync_routers_and_rports(ctx)
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def _create_port_in_ovn(self, ctx, port):
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# Remove any old ACLs for the port to avoid creating duplicate ACLs.
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self.ovn_api.delete_acl(
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utils.ovn_name(port['network_id']),
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port['id']).execute(check_error=True)
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# Create the port in OVN. This will include ACL and Address Set
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# updates as needed.
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self._ovn_client.create_port(ctx, port)
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def remove_common_acls(self, neutron_acls, nb_acls):
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"""Take out common acls of the two acl dictionaries.
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@param neutron_acls: neutron dictionary of port vs acls
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@type neutron_acls: {}
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@param nb_acls: nb dictionary of port vs acls
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@type nb_acls: {}
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@return: Nothing, original dictionary modified
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"""
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for port in neutron_acls.keys():
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for acl in list(neutron_acls[port]):
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if port in nb_acls and acl in nb_acls[port]:
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neutron_acls[port].remove(acl)
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nb_acls[port].remove(acl)
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def get_acls(self, context):
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"""create the list of ACLS in OVN.
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@param context: neutron_lib.context
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@type context: object of type neutron_lib.context.Context
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@var lswitch_names: List of lswitch names
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@var acl_list: List of NB acls
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@var acl_list_dict: Dictionary of acl-lists based on lport as key
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@return: acl_list-dict
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"""
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lswitch_names = set([])
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for network in self.core_plugin.get_networks(context):
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lswitch_names.add(network['id'])
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acl_dict, ignore1, ignore2 = (
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self.ovn_api.get_acls_for_lswitches(lswitch_names))
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acl_list = list(itertools.chain(*acl_dict.values()))
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acl_list_dict = {}
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for acl in acl_list:
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acl = acl_utils.filter_acl_dict(
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acl, extra_fields=['lport', 'lswitch'])
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key = acl['lport']
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if key in acl_list_dict:
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acl_list_dict[key].append(acl)
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else:
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acl_list_dict[key] = list([acl])
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return acl_list_dict
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def sync_port_groups(self, ctx):
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"""Sync Port Groups between neutron and NB.
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@param ctx: neutron_lib.context
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@type ctx: object of type neutron_lib.context.Context
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"""
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neutron_sgs = {}
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neutron_pgs = set()
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with ctx.session.begin(subtransactions=True):
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for sg in self.core_plugin.get_security_groups(ctx):
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pg_name = utils.ovn_port_group_name(sg['id'])
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neutron_pgs.add(pg_name)
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neutron_sgs[pg_name] = sg['id']
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neutron_pgs.add(ovn_const.OVN_DROP_PORT_GROUP_NAME)
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ovn_pgs = set()
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port_groups = self.ovn_api.db_list_rows('Port_Group').execute() or []
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for pg in port_groups:
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ovn_pgs.add(pg.name)
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add_pgs = neutron_pgs.difference(ovn_pgs)
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remove_pgs = ovn_pgs.difference(neutron_pgs)
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LOG.debug('Port Groups added %d, removed %d',
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len(add_pgs), len(remove_pgs))
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if self.mode == SYNC_MODE_REPAIR:
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LOG.debug('Port-Group-SYNC: transaction started @ %s',
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str(datetime.now()))
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if add_pgs:
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db_ports = self.core_plugin.get_ports(ctx)
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ovn_ports = set(p.name for p in
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self.ovn_api.lsp_list().execute())
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with self.ovn_api.transaction(check_error=True) as txn:
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pg = ovn_const.OVN_DROP_PORT_GROUP_NAME
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# Process default drop port group first
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if pg in add_pgs:
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txn.add(self.ovn_api.pg_add(name=pg, acls=[]))
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add_pgs.remove(pg)
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# Add ports to the drop port group. Only add those that
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# already exists in OVN. The rest will be added during the
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# ports sync operation later.
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for n_port in db_ports:
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if ((utils.is_security_groups_enabled(n_port) or
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utils.is_port_security_enabled(n_port)) and
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n_port['id'] in ovn_ports):
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txn.add(self.ovn_api.pg_add_ports(
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pg, n_port['id']))
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for pg in add_pgs:
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# If it's a security group PG, add the ext id
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ext_ids = {ovn_const.OVN_SG_EXT_ID_KEY: neutron_sgs[pg]}
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txn.add(self.ovn_api.pg_add(name=pg, acls=[],
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external_ids=ext_ids))
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# Add the ports belonging to the SG to this port group
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for n_port in db_ports:
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if (neutron_sgs[pg] in n_port['security_groups'] and
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n_port['id'] in ovn_ports):
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txn.add(self.ovn_api.pg_add_ports(
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pg, n_port['id']))
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for pg in remove_pgs:
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txn.add(self.ovn_api.pg_del(pg))
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LOG.debug('Port-Group-SYNC: transaction finished @ %s',
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str(datetime.now()))
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def _get_acls_from_port_groups(self):
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ovn_acls = []
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acl_columns = (self.ovn_api._tables['ACL'].columns.keys() &
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set(ovn_const.ACL_EXPECTED_COLUMNS_NBDB))
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acl_columns.discard('external_ids')
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for pg in self.ovn_api.db_list_rows('Port_Group').execute():
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acls = getattr(pg, 'acls', [])
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for acl in acls:
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acl_string = {k: getattr(acl, k) for k in acl_columns}
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acl_string['port_group'] = pg.name
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ovn_acls.append(acl_string)
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return ovn_acls
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def sync_acls(self, ctx):
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"""Sync ACLs between neutron and NB.
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@param ctx: neutron_lib.context
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@type ctx: object of type neutron_lib.context.Context
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@return: Nothing
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"""
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LOG.debug('ACL-SYNC: started @ %s', str(datetime.now()))
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neutron_acls = []
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for sgr in self.core_plugin.get_security_group_rules(ctx):
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pg_name = utils.ovn_port_group_name(sgr['security_group_id'])
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neutron_acls.append(acl_utils._add_sg_rule_acl_for_port_group(
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pg_name, sgr))
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neutron_acls += acl_utils.add_acls_for_drop_port_group(
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ovn_const.OVN_DROP_PORT_GROUP_NAME)
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ovn_acls = self._get_acls_from_port_groups()
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# We need to remove also all the ACLs applied to Logical Switches
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def get_num_acls(ovn_acls):
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return len([item for sublist in ovn_acls for item in sublist[1]])
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ovn_acls_from_ls = [(row.name, row.acls) for row in (
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self.ovn_api._tables['Logical_Switch'].rows.values())]
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num_acls_to_remove_from_ls = get_num_acls(ovn_acls_from_ls)
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# Remove the common ones
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for na in list(neutron_acls):
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for ovn_a in ovn_acls:
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if all(item in na.items() for item in ovn_a.items()):
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neutron_acls.remove(na)
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ovn_acls.remove(ovn_a)
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break
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num_acls_to_add = len(neutron_acls)
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num_acls_to_remove = len(ovn_acls) + num_acls_to_remove_from_ls
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if 0 != num_acls_to_add or 0 != num_acls_to_remove:
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LOG.warning('ACLs-to-be-added %(add)d '
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'ACLs-to-be-removed %(remove)d',
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{'add': num_acls_to_add,
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'remove': num_acls_to_remove})
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if self.mode == SYNC_MODE_REPAIR:
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with self.ovn_api.transaction(check_error=True) as txn:
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for acla in neutron_acls:
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LOG.warning('ACL found in Neutron but not in '
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'OVN DB for port group %s', acla['port_group'])
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txn.add(self.ovn_api.pg_acl_add(**acla))
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with self.ovn_api.transaction(check_error=True) as txn:
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for aclr in ovn_acls:
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LOG.warning('ACLs found in OVN DB but not in '
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'Neutron for port group %s',
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aclr['port_group'])
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txn.add(self.ovn_api.pg_acl_del(aclr['port_group'],
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aclr['direction'],
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aclr['priority'],
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aclr['match']))
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for aclr in ovn_acls_from_ls:
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# Remove all the ACLs from any Logical Switch if they have
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# any. Elements are (lswitch_name, list_of_acls).
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if len(aclr[1]) > 0:
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LOG.warning('Removing ACLs from OVN from Logical '
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'Switch %s', aclr[0])
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txn.add(self.ovn_api.acl_del(aclr[0]))
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LOG.debug('ACL-SYNC: finished @ %s', str(datetime.now()))
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def _calculate_fips_differences(self, ovn_fips, db_fips):
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to_add = []
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to_remove = []
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for db_fip in db_fips:
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for ovn_fip in ovn_fips:
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if (ovn_fip['logical_ip'] == db_fip['fixed_ip_address'] and
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ovn_fip['external_ip'] == db_fip['floating_ip_address']):
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break
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else:
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to_add.append(db_fip)
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for ovn_fip in ovn_fips:
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for db_fip in db_fips:
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if (ovn_fip['logical_ip'] == db_fip['fixed_ip_address'] and
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ovn_fip['external_ip'] == db_fip['floating_ip_address']):
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break
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else:
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to_remove.append(ovn_fip)
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return to_add, to_remove
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def sync_routers_and_rports(self, ctx):
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"""Sync Routers between neutron and NB.
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@param ctx: neutron_lib.context
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@type ctx: object of type neutron_lib.context.Context
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@var db_routers: List of Routers from neutron DB
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@var db_router_ports: List of Router ports from neutron DB
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@var lrouters: NB dictionary of logical routers and
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the corresponding logical router ports.
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vs list-of-acls
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@var del_lrouters_list: List of Routers that need to be
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deleted from NB
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@var del_lrouter_ports_list: List of Router ports that need to be
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deleted from NB
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@return: Nothing
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"""
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if not utils.is_ovn_l3(self.l3_plugin):
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LOG.debug("OVN L3 mode is disabled, skipping "
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"sync routers and router ports")
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return
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LOG.debug('OVN-NB Sync Routers and Router ports started @ %s',
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str(datetime.now()))
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db_routers = {}
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db_extends = {}
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db_router_ports = {}
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for router in self.l3_plugin.get_routers(ctx):
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db_routers[router['id']] = router
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db_extends[router['id']] = {}
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db_extends[router['id']]['routes'] = []
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db_extends[router['id']]['snats'] = []
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db_extends[router['id']]['fips'] = []
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if not router.get(l3.EXTERNAL_GW_INFO):
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continue
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gateways = self._ovn_client._get_gw_info(ctx, router)
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for gw_info in gateways:
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prefix = (constants.IPv4_ANY if
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gw_info.ip_version == constants.IP_VERSION_4 else
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constants.IPv6_ANY)
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if gw_info.gateway_ip:
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db_extends[router['id']]['routes'].append(
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{'destination': prefix,
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'nexthop': gw_info.gateway_ip})
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if gw_info.ip_version == constants.IP_VERSION_6:
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continue
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if gw_info.router_ip and utils.is_snat_enabled(router):
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networks = (
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self._ovn_client._get_v4_network_of_all_router_ports(
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ctx, router['id']))
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for network in networks:
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db_extends[router['id']]['snats'].append({
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'logical_ip': network,
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'external_ip': gw_info.router_ip,
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'type': 'snat'})
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fips = self.l3_plugin.get_floatingips(
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ctx, {'router_id': list(db_routers.keys())})
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for fip in fips:
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db_extends[fip['router_id']]['fips'].append(fip)
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interfaces = self.l3_plugin._get_sync_interfaces(
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ctx, list(db_routers.keys()),
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[constants.DEVICE_OWNER_ROUTER_INTF,
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constants.DEVICE_OWNER_ROUTER_GW,
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constants.DEVICE_OWNER_DVR_INTERFACE,
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constants.DEVICE_OWNER_ROUTER_HA_INTF,
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constants.DEVICE_OWNER_HA_REPLICATED_INT])
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for interface in interfaces:
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db_router_ports[interface['id']] = interface
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lrouters = self.ovn_api.get_all_logical_routers_with_rports()
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del_lrouters_list = []
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del_lrouter_ports_list = []
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update_sroutes_list = []
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update_lrport_list = []
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update_snats_list = []
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update_fips_list = []
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for lrouter in lrouters:
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if lrouter['name'] in db_routers:
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for lrport, lrport_nets in lrouter['ports'].items():
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if lrport in db_router_ports:
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# We dont have to check for the networks and
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# ipv6_ra_configs values. Lets add it to the
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# update_lrport_list. If they are in sync, then
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# update_router_port will be a no-op.
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update_lrport_list.append(db_router_ports[lrport])
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del db_router_ports[lrport]
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else:
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del_lrouter_ports_list.append(
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{'port': lrport, 'lrouter': lrouter['name']})
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if 'routes' in db_routers[lrouter['name']]:
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db_routes = db_routers[lrouter['name']]['routes']
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else:
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db_routes = []
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if 'routes' in db_extends[lrouter['name']]:
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db_routes.extend(db_extends[lrouter['name']]['routes'])
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ovn_routes = lrouter['static_routes']
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add_routes, del_routes = helpers.diff_list_of_dict(
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ovn_routes, db_routes)
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update_sroutes_list.append({'id': lrouter['name'],
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'add': add_routes,
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'del': del_routes})
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ovn_fips = lrouter['dnat_and_snats']
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db_fips = db_extends[lrouter['name']]['fips']
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add_fips, del_fips = self._calculate_fips_differences(
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ovn_fips, db_fips)
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update_fips_list.append({'id': lrouter['name'],
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'add': add_fips,
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'del': del_fips})
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ovn_nats = lrouter['snats']
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|
db_snats = db_extends[lrouter['name']]['snats']
|
|
add_snats, del_snats = helpers.diff_list_of_dict(
|
|
ovn_nats, db_snats)
|
|
update_snats_list.append({'id': lrouter['name'],
|
|
'add': add_snats,
|
|
'del': del_snats})
|
|
else:
|
|
del_lrouters_list.append(lrouter)
|
|
|
|
lrouters_names = {lr['name'] for lr in lrouters}
|
|
for r_id, router in db_routers.items():
|
|
if r_id in lrouters_names:
|
|
continue
|
|
LOG.warning("Router found in Neutron but not in "
|
|
"OVN DB, router id=%s", router['id'])
|
|
if self.mode == SYNC_MODE_REPAIR:
|
|
try:
|
|
LOG.warning("Creating the router %s in OVN NB DB",
|
|
router['id'])
|
|
self._ovn_client.create_router(
|
|
ctx, router, add_external_gateway=False)
|
|
if 'routes' in router:
|
|
update_sroutes_list.append(
|
|
{'id': router['id'], 'add': router['routes'],
|
|
'del': []})
|
|
if 'routes' in db_extends[router['id']]:
|
|
update_sroutes_list.append(
|
|
{'id': router['id'],
|
|
'add': db_extends[router['id']]['routes'],
|
|
'del': []})
|
|
if 'snats' in db_extends[router['id']]:
|
|
update_snats_list.append(
|
|
{'id': router['id'],
|
|
'add': db_extends[router['id']]['snats'],
|
|
'del': []})
|
|
if 'fips' in db_extends[router['id']]:
|
|
update_fips_list.append(
|
|
{'id': router['id'],
|
|
'add': db_extends[router['id']]['fips'],
|
|
'del': []})
|
|
except RuntimeError:
|
|
LOG.warning("Create router in OVN NB failed for router %s",
|
|
router['id'])
|
|
|
|
for rp_id, rrport in db_router_ports.items():
|
|
LOG.warning("Router Port found in Neutron but not in OVN "
|
|
"DB, router port_id=%s", rrport['id'])
|
|
if self.mode == SYNC_MODE_REPAIR:
|
|
try:
|
|
LOG.warning("Creating the router port %s in OVN NB DB",
|
|
rrport['id'])
|
|
router = db_routers[rrport['device_id']]
|
|
self._ovn_client._create_lrouter_port(
|
|
ctx, router, rrport)
|
|
except RuntimeError:
|
|
LOG.warning("Create router port in OVN "
|
|
"NB failed for router port %s", rrport['id'])
|
|
|
|
for rport in update_lrport_list:
|
|
LOG.warning("Router Port port_id=%s needs to be updated "
|
|
"for networks changed",
|
|
rport['id'])
|
|
if self.mode == SYNC_MODE_REPAIR:
|
|
try:
|
|
LOG.warning(
|
|
"Updating networks on router port %s in OVN NB DB",
|
|
rport['id'])
|
|
self._ovn_client.update_router_port(ctx, rport)
|
|
except RuntimeError:
|
|
LOG.warning("Update router port networks in OVN "
|
|
"NB failed for router port %s", rport['id'])
|
|
|
|
with self.ovn_api.transaction(check_error=True) as txn:
|
|
for lrouter in del_lrouters_list:
|
|
LOG.warning("Router found in OVN but not in "
|
|
"Neutron, router id=%s", lrouter['name'])
|
|
if self.mode == SYNC_MODE_REPAIR:
|
|
LOG.warning("Deleting the router %s from OVN NB DB",
|
|
lrouter['name'])
|
|
txn.add(self.ovn_api.delete_lrouter(
|
|
utils.ovn_name(lrouter['name'])))
|
|
|
|
for lrport_info in del_lrouter_ports_list:
|
|
LOG.warning("Router Port found in OVN but not in "
|
|
"Neutron, port_id=%s", lrport_info['port'])
|
|
if self.mode == SYNC_MODE_REPAIR:
|
|
LOG.warning("Deleting the port %s from OVN NB DB",
|
|
lrport_info['port'])
|
|
txn.add(self.ovn_api.delete_lrouter_port(
|
|
utils.ovn_lrouter_port_name(lrport_info['port']),
|
|
utils.ovn_name(lrport_info['lrouter']),
|
|
if_exists=False))
|
|
for sroute in update_sroutes_list:
|
|
if sroute['add']:
|
|
LOG.warning("Router %(id)s static routes %(route)s "
|
|
"found in Neutron but not in OVN",
|
|
{'id': sroute['id'], 'route': sroute['add']})
|
|
if self.mode == SYNC_MODE_REPAIR:
|
|
LOG.warning("Add static routes %s to OVN NB DB",
|
|
sroute['add'])
|
|
for route in sroute['add']:
|
|
txn.add(self.ovn_api.add_static_route(
|
|
utils.ovn_name(sroute['id']),
|
|
ip_prefix=route['destination'],
|
|
nexthop=route['nexthop']))
|
|
if sroute['del']:
|
|
LOG.warning("Router %(id)s static routes %(route)s "
|
|
"found in OVN but not in Neutron",
|
|
{'id': sroute['id'], 'route': sroute['del']})
|
|
if self.mode == SYNC_MODE_REPAIR:
|
|
LOG.warning("Delete static routes %s from OVN NB DB",
|
|
sroute['del'])
|
|
for route in sroute['del']:
|
|
txn.add(self.ovn_api.delete_static_route(
|
|
utils.ovn_name(sroute['id']),
|
|
ip_prefix=route['destination'],
|
|
nexthop=route['nexthop']))
|
|
for fip in update_fips_list:
|
|
if fip['del']:
|
|
LOG.warning("Router %(id)s floating ips %(fip)s "
|
|
"found in OVN but not in Neutron",
|
|
{'id': fip['id'], 'fip': fip['del']})
|
|
if self.mode == SYNC_MODE_REPAIR:
|
|
LOG.warning(
|
|
"Delete floating ips %s from OVN NB DB",
|
|
fip['del'])
|
|
for nat in fip['del']:
|
|
self._ovn_client._delete_floatingip(
|
|
nat, utils.ovn_name(fip['id']), txn=txn)
|
|
if fip['add']:
|
|
LOG.warning("Router %(id)s floating ips %(fip)s "
|
|
"found in Neutron but not in OVN",
|
|
{'id': fip['id'], 'fip': fip['add']})
|
|
if self.mode == SYNC_MODE_REPAIR:
|
|
LOG.warning("Add floating ips %s to OVN NB DB",
|
|
fip['add'])
|
|
for nat in fip['add']:
|
|
self._ovn_client._create_or_update_floatingip(
|
|
nat, txn=txn)
|
|
for snat in update_snats_list:
|
|
if snat['del']:
|
|
LOG.warning("Router %(id)s snat %(snat)s "
|
|
"found in OVN but not in Neutron",
|
|
{'id': snat['id'], 'snat': snat['del']})
|
|
if self.mode == SYNC_MODE_REPAIR:
|
|
LOG.warning("Delete snats %s from OVN NB DB",
|
|
snat['del'])
|
|
for nat in snat['del']:
|
|
txn.add(self.ovn_api.delete_nat_rule_in_lrouter(
|
|
utils.ovn_name(snat['id']),
|
|
logical_ip=nat['logical_ip'],
|
|
external_ip=nat['external_ip'],
|
|
type='snat'))
|
|
if snat['add']:
|
|
LOG.warning("Router %(id)s snat %(snat)s "
|
|
"found in Neutron but not in OVN",
|
|
{'id': snat['id'], 'snat': snat['add']})
|
|
if self.mode == SYNC_MODE_REPAIR:
|
|
LOG.warning("Add snats %s to OVN NB DB",
|
|
snat['add'])
|
|
for nat in snat['add']:
|
|
txn.add(self.ovn_api.add_nat_rule_in_lrouter(
|
|
utils.ovn_name(snat['id']),
|
|
logical_ip=nat['logical_ip'],
|
|
external_ip=nat['external_ip'],
|
|
type='snat'))
|
|
LOG.debug('OVN-NB Sync routers and router ports finished %s',
|
|
str(datetime.now()))
|
|
|
|
def _sync_subnet_dhcp_options(self, ctx, db_networks,
|
|
ovn_subnet_dhcp_options):
|
|
LOG.debug('OVN-NB Sync DHCP options for Neutron subnets started')
|
|
|
|
db_subnets = {}
|
|
filters = {'enable_dhcp': [1]}
|
|
for subnet in self.core_plugin.get_subnets(ctx, filters=filters):
|
|
if (subnet['ip_version'] == constants.IP_VERSION_6 and
|
|
subnet.get('ipv6_address_mode') == constants.IPV6_SLAAC):
|
|
continue
|
|
db_subnets[subnet['id']] = subnet
|
|
|
|
del_subnet_dhcp_opts_list = []
|
|
for subnet_id, ovn_dhcp_opts in ovn_subnet_dhcp_options.items():
|
|
if subnet_id in db_subnets:
|
|
network = db_networks[utils.ovn_name(
|
|
db_subnets[subnet_id]['network_id'])]
|
|
if constants.IP_VERSION_6 == db_subnets[subnet_id][
|
|
'ip_version']:
|
|
server_mac = ovn_dhcp_opts['options'].get('server_id')
|
|
else:
|
|
server_mac = ovn_dhcp_opts['options'].get('server_mac')
|
|
dhcp_options = self._ovn_client._get_ovn_dhcp_options(
|
|
db_subnets[subnet_id], network, server_mac=server_mac)
|
|
# Verify that the cidr and options are also in sync.
|
|
if dhcp_options['cidr'] == ovn_dhcp_opts['cidr'] and (
|
|
dhcp_options['options'] == ovn_dhcp_opts['options']):
|
|
del db_subnets[subnet_id]
|
|
else:
|
|
db_subnets[subnet_id]['ovn_dhcp_options'] = dhcp_options
|
|
else:
|
|
del_subnet_dhcp_opts_list.append(ovn_dhcp_opts)
|
|
|
|
for subnet_id, subnet in db_subnets.items():
|
|
LOG.warning('DHCP options for subnet %s is present in '
|
|
'Neutron but out of sync for OVN', subnet_id)
|
|
if self.mode == SYNC_MODE_REPAIR:
|
|
try:
|
|
LOG.debug('Adding/Updating DHCP options for subnet %s in '
|
|
' OVN NB DB', subnet_id)
|
|
network = db_networks[utils.ovn_name(subnet['network_id'])]
|
|
# _ovn_client._add_subnet_dhcp_options doesn't create
|
|
# a new row in DHCP_Options if the row already exists.
|
|
# See commands.AddDHCPOptionsCommand.
|
|
self._ovn_client._add_subnet_dhcp_options(
|
|
subnet, network, subnet.get('ovn_dhcp_options'))
|
|
except RuntimeError:
|
|
LOG.warning('Adding/Updating DHCP options for subnet '
|
|
'%s failed in OVN NB DB', subnet_id)
|
|
|
|
txn_commands = []
|
|
for dhcp_opt in del_subnet_dhcp_opts_list:
|
|
LOG.warning('Out of sync subnet DHCP options for subnet %s '
|
|
'found in OVN NB DB which needs to be deleted',
|
|
dhcp_opt['external_ids']['subnet_id'])
|
|
if self.mode == SYNC_MODE_REPAIR:
|
|
LOG.debug('Deleting subnet DHCP options for subnet %s ',
|
|
dhcp_opt['external_ids']['subnet_id'])
|
|
txn_commands.append(self.ovn_api.delete_dhcp_options(
|
|
dhcp_opt['uuid']))
|
|
|
|
if txn_commands:
|
|
with self.ovn_api.transaction(check_error=True) as txn:
|
|
for cmd in txn_commands:
|
|
txn.add(cmd)
|
|
LOG.debug('OVN-NB Sync DHCP options for Neutron subnets finished')
|
|
|
|
def _sync_port_dhcp_options(self, ctx, ports_need_sync_dhcp_opts,
|
|
ovn_port_dhcpv4_opts, ovn_port_dhcpv6_opts):
|
|
LOG.debug('OVN-NB Sync DHCP options for Neutron ports with extra '
|
|
'dhcp options assigned started')
|
|
|
|
txn_commands = []
|
|
lsp_dhcp_key = {constants.IP_VERSION_4: 'dhcpv4_options',
|
|
constants.IP_VERSION_6: 'dhcpv6_options'}
|
|
ovn_port_dhcp_opts = {constants.IP_VERSION_4: ovn_port_dhcpv4_opts,
|
|
constants.IP_VERSION_6: ovn_port_dhcpv6_opts}
|
|
for port in ports_need_sync_dhcp_opts:
|
|
if self.mode == SYNC_MODE_REPAIR:
|
|
LOG.debug('Updating DHCP options for port %s in OVN NB DB',
|
|
port['id'])
|
|
set_lsp = {}
|
|
for ip_v in [constants.IP_VERSION_4, constants.IP_VERSION_6]:
|
|
dhcp_opts = (
|
|
self._ovn_client._get_port_dhcp_options(
|
|
port, ip_v))
|
|
if not dhcp_opts or 'uuid' in dhcp_opts:
|
|
# If the Logical_Switch_Port.dhcpv4_options or
|
|
# dhcpv6_options no longer refers a port dhcp options
|
|
# created in DHCP_Options earlier, that port dhcp
|
|
# options will be deleted in the following
|
|
# ovn_port_dhcp_options handling.
|
|
set_lsp[lsp_dhcp_key[ip_v]] = [
|
|
dhcp_opts['uuid']] if dhcp_opts else []
|
|
else:
|
|
# If port has extra port dhcp
|
|
# options, a command will returned by
|
|
# self._ovn_client._get_port_dhcp_options
|
|
# to add or update port dhcp options.
|
|
ovn_port_dhcp_opts[ip_v].pop(port['id'], None)
|
|
dhcp_options = dhcp_opts['cmd']
|
|
txn_commands.append(dhcp_options)
|
|
set_lsp[lsp_dhcp_key[ip_v]] = dhcp_options
|
|
if set_lsp:
|
|
txn_commands.append(self.ovn_api.set_lswitch_port(
|
|
lport_name=port['id'], **set_lsp))
|
|
|
|
for ip_v in [constants.IP_VERSION_4, constants.IP_VERSION_6]:
|
|
for port_id, dhcp_opt in ovn_port_dhcp_opts[ip_v].items():
|
|
LOG.warning(
|
|
'Out of sync port DHCPv%(ip_version)d options for '
|
|
'(subnet %(subnet_id)s port %(port_id)s) found in OVN '
|
|
'NB DB which needs to be deleted',
|
|
{'ip_version': ip_v,
|
|
'subnet_id': dhcp_opt['external_ids']['subnet_id'],
|
|
'port_id': port_id})
|
|
|
|
if self.mode == SYNC_MODE_REPAIR:
|
|
LOG.debug('Deleting port DHCPv%d options for (subnet %s, '
|
|
'port %s)', ip_v,
|
|
dhcp_opt['external_ids']['subnet_id'], port_id)
|
|
txn_commands.append(self.ovn_api.delete_dhcp_options(
|
|
dhcp_opt['uuid']))
|
|
|
|
if txn_commands:
|
|
with self.ovn_api.transaction(check_error=True) as txn:
|
|
for cmd in txn_commands:
|
|
txn.add(cmd)
|
|
LOG.debug('OVN-NB Sync DHCP options for Neutron ports with extra '
|
|
'dhcp options assigned finished')
|
|
|
|
def _sync_metadata_ports(self, ctx, db_ports):
|
|
"""Ensure metadata ports in all Neutron networks.
|
|
|
|
This method will ensure that all networks have one and only one
|
|
metadata port.
|
|
"""
|
|
if not ovn_conf.is_ovn_metadata_enabled():
|
|
return
|
|
LOG.debug('OVN sync metadata ports started')
|
|
for net in self.core_plugin.get_networks(ctx):
|
|
# Get only DHCP ports that don't belong to agent, it should return
|
|
# only OVN metadata ports
|
|
dhcp_ports = [
|
|
p for p in self.core_plugin.get_ports(
|
|
ctx, filters=dict(
|
|
network_id=[net['id']],
|
|
device_owner=[constants.DEVICE_OWNER_DHCP]))
|
|
if not utils.is_neutron_dhcp_agent_port(p)]
|
|
|
|
if not dhcp_ports:
|
|
LOG.warning('Missing metadata port found in Neutron for '
|
|
'network %s', net['id'])
|
|
if self.mode == SYNC_MODE_REPAIR:
|
|
try:
|
|
# Create the missing port in both Neutron and OVN.
|
|
LOG.warning('Creating missing metadadata port in '
|
|
'Neutron and OVN for network %s',
|
|
net['id'])
|
|
self._ovn_client.create_metadata_port(ctx, net)
|
|
except n_exc.IpAddressGenerationFailure:
|
|
LOG.error('Could not allocate IP addresses for '
|
|
'metadata port in network %s', net['id'])
|
|
continue
|
|
else:
|
|
# Delete all but one DHCP ports. Only one is needed for
|
|
# metadata.
|
|
for port in dhcp_ports[1:]:
|
|
LOG.warning('Unnecessary DHCP port %s for network %s '
|
|
'found in Neutron', port['id'], net['id'])
|
|
if self.mode == SYNC_MODE_REPAIR:
|
|
LOG.warning('Deleting unnecessary DHCP port %s for '
|
|
'network %s', port['id'], net['id'])
|
|
self.core_plugin.delete_port(ctx, port['id'])
|
|
db_ports.pop(port['id'], None)
|
|
port = dhcp_ports[0]
|
|
if port['id'] in db_ports.keys():
|
|
LOG.warning('Metadata port %s for network %s found in '
|
|
'Neutron but not in OVN',
|
|
port['id'], net['id'])
|
|
if self.mode == SYNC_MODE_REPAIR:
|
|
LOG.warning('Creating metadata port %s for network '
|
|
'%s in OVN',
|
|
port['id'], net['id'])
|
|
self._create_port_in_ovn(ctx, port)
|
|
db_ports.pop(port['id'])
|
|
|
|
if self.mode == SYNC_MODE_REPAIR:
|
|
# Make sure that this port has an IP address in all the subnets
|
|
self._ovn_client.update_metadata_port(ctx, net['id'])
|
|
LOG.debug('OVN sync metadata ports finished')
|
|
|
|
def sync_networks_ports_and_dhcp_opts(self, ctx):
|
|
LOG.debug('OVN-NB Sync networks, ports and DHCP options started')
|
|
db_networks = {}
|
|
for net in self.core_plugin.get_networks(ctx):
|
|
db_networks[utils.ovn_name(net['id'])] = net
|
|
|
|
# Ignore the floating ip ports with device_owner set to
|
|
# constants.DEVICE_OWNER_FLOATINGIP
|
|
db_ports = {port['id']: port for port in
|
|
self.core_plugin.get_ports(ctx) if not
|
|
utils.is_lsp_ignored(port)}
|
|
|
|
ovn_all_dhcp_options = self.ovn_api.get_all_dhcp_options()
|
|
db_network_cache = dict(db_networks)
|
|
|
|
ports_need_sync_dhcp_opts = []
|
|
lswitches = self.ovn_api.get_all_logical_switches_with_ports()
|
|
del_lswitchs_list = []
|
|
del_lports_list = []
|
|
add_provnet_ports_list = []
|
|
del_provnet_ports_list = []
|
|
for lswitch in lswitches:
|
|
if lswitch['name'] in db_networks:
|
|
for lport in lswitch['ports']:
|
|
if lport in db_ports:
|
|
port = db_ports.pop(lport)
|
|
if not utils.is_network_device_port(port):
|
|
ports_need_sync_dhcp_opts.append(port)
|
|
else:
|
|
del_lports_list.append({'port': lport,
|
|
'lswitch': lswitch['name']})
|
|
db_network = db_networks[lswitch['name']]
|
|
db_segments = self.segments_plugin.get_segments(
|
|
ctx, filters={'network_id': [db_network['id']]})
|
|
segments_provnet_port_names = []
|
|
for db_segment in db_segments:
|
|
physnet = db_segment.get(segment_def.PHYSICAL_NETWORK)
|
|
pname = utils.ovn_provnet_port_name(db_segment['id'])
|
|
segments_provnet_port_names.append(pname)
|
|
if physnet and pname not in lswitch['provnet_ports']:
|
|
add_provnet_ports_list.append(
|
|
{'network': db_network,
|
|
'segment': db_segment,
|
|
'lswitch': lswitch['name']})
|
|
# Delete orhpaned provnet ports
|
|
for provnet_port in lswitch['provnet_ports']:
|
|
if provnet_port in segments_provnet_port_names:
|
|
continue
|
|
if provnet_port not in [
|
|
utils.ovn_provnet_port_name(v['segment'])
|
|
for v in add_provnet_ports_list]:
|
|
del_provnet_ports_list.append(
|
|
{'network': db_network,
|
|
'lport': provnet_port,
|
|
'lswitch': lswitch['name']})
|
|
|
|
del db_networks[lswitch['name']]
|
|
else:
|
|
del_lswitchs_list.append(lswitch)
|
|
|
|
for net_id, network in db_networks.items():
|
|
LOG.warning("Network found in Neutron but not in "
|
|
"OVN DB, network_id=%s", network['id'])
|
|
if self.mode == SYNC_MODE_REPAIR:
|
|
try:
|
|
LOG.debug('Creating the network %s in OVN NB DB',
|
|
network['id'])
|
|
self._ovn_client.create_network(ctx, network)
|
|
except RuntimeError:
|
|
LOG.warning("Create network in OVN NB failed for "
|
|
"network %s", network['id'])
|
|
|
|
self._sync_metadata_ports(ctx, db_ports)
|
|
|
|
self._sync_subnet_dhcp_options(
|
|
ctx, db_network_cache, ovn_all_dhcp_options['subnets'])
|
|
|
|
for port_id, port in db_ports.items():
|
|
LOG.warning("Port found in Neutron but not in OVN "
|
|
"DB, port_id=%s", port['id'])
|
|
if self.mode == SYNC_MODE_REPAIR:
|
|
try:
|
|
LOG.debug('Creating the port %s in OVN NB DB',
|
|
port['id'])
|
|
self._create_port_in_ovn(ctx, port)
|
|
if port_id in ovn_all_dhcp_options['ports_v4']:
|
|
dhcp_disable, lsp_opts = utils.get_lsp_dhcp_opts(
|
|
port, constants.IP_VERSION_4)
|
|
if lsp_opts:
|
|
ovn_all_dhcp_options['ports_v4'].pop(port_id)
|
|
if port_id in ovn_all_dhcp_options['ports_v6']:
|
|
dhcp_disable, lsp_opts = utils.get_lsp_dhcp_opts(
|
|
port, constants.IP_VERSION_6)
|
|
if lsp_opts:
|
|
ovn_all_dhcp_options['ports_v6'].pop(port_id)
|
|
except RuntimeError:
|
|
LOG.warning("Create port in OVN NB failed for"
|
|
" port %s", port['id'])
|
|
|
|
with self.ovn_api.transaction(check_error=True) as txn:
|
|
for lswitch in del_lswitchs_list:
|
|
LOG.warning("Network found in OVN but not in "
|
|
"Neutron, network_id=%s", lswitch['name'])
|
|
if self.mode == SYNC_MODE_REPAIR:
|
|
LOG.debug('Deleting the network %s from OVN NB DB',
|
|
lswitch['name'])
|
|
txn.add(self.ovn_api.ls_del(lswitch['name']))
|
|
|
|
for provnet_port_info in add_provnet_ports_list:
|
|
network = provnet_port_info['network']
|
|
segment = provnet_port_info['segment']
|
|
LOG.warning("Provider network found in Neutron but "
|
|
"provider network port not found in OVN DB, "
|
|
"network_id=%(net)s segment_id=%(seg)s",
|
|
{'net': network['id'],
|
|
'seg': segment['id']})
|
|
if self.mode == SYNC_MODE_REPAIR:
|
|
LOG.debug('Creating the provnet port %s in OVN NB DB',
|
|
utils.ovn_provnet_port_name(segment['id']))
|
|
self._ovn_client.create_provnet_port(
|
|
network['id'], segment, txn=txn)
|
|
|
|
for provnet_port_info in del_provnet_ports_list:
|
|
network = provnet_port_info['network']
|
|
lport = provnet_port_info['lport']
|
|
lswitch = provnet_port_info['lswitch']
|
|
LOG.warning("Provider network port found in OVN DB, "
|
|
"but not in neutron network_id=%(net)s "
|
|
"port_name=%(lport)s",
|
|
{'net': network,
|
|
'seg': lport})
|
|
if self.mode == SYNC_MODE_REPAIR:
|
|
LOG.debug('Deleting the port %s from OVN NB DB',
|
|
lport)
|
|
txn.add(self.ovn_api.delete_lswitch_port(
|
|
lport_name=lport,
|
|
lswitch_name=lswitch))
|
|
|
|
for lport_info in del_lports_list:
|
|
LOG.warning("Port found in OVN but not in "
|
|
"Neutron, port_id=%s", lport_info['port'])
|
|
if self.mode == SYNC_MODE_REPAIR:
|
|
LOG.debug('Deleting the port %s from OVN NB DB',
|
|
lport_info['port'])
|
|
txn.add(self.ovn_api.delete_lswitch_port(
|
|
lport_name=lport_info['port'],
|
|
lswitch_name=lport_info['lswitch']))
|
|
if lport_info['port'] in ovn_all_dhcp_options['ports_v4']:
|
|
LOG.debug('Deleting port DHCPv4 options for (port %s)',
|
|
lport_info['port'])
|
|
txn.add(self.ovn_api.delete_dhcp_options(
|
|
ovn_all_dhcp_options['ports_v4'].pop(
|
|
lport_info['port'])['uuid']))
|
|
if lport_info['port'] in ovn_all_dhcp_options['ports_v6']:
|
|
LOG.debug('Deleting port DHCPv6 options for (port %s)',
|
|
lport_info['port'])
|
|
txn.add(self.ovn_api.delete_dhcp_options(
|
|
ovn_all_dhcp_options['ports_v6'].pop(
|
|
lport_info['port'])['uuid']))
|
|
|
|
self._sync_port_dhcp_options(ctx, ports_need_sync_dhcp_opts,
|
|
ovn_all_dhcp_options['ports_v4'],
|
|
ovn_all_dhcp_options['ports_v6'])
|
|
LOG.debug('OVN-NB Sync networks, ports and DHCP options finished')
|
|
|
|
def sync_port_dns_records(self, ctx):
|
|
if self.mode != SYNC_MODE_REPAIR:
|
|
return
|
|
LOG.debug('OVN-NB Sync port dns records')
|
|
# Ignore the floating ip ports with device_owner set to
|
|
# constants.DEVICE_OWNER_FLOATINGIP
|
|
db_ports = [port for port in
|
|
self.core_plugin.get_ports(ctx) if not
|
|
port.get('device_owner', '').startswith(
|
|
constants.DEVICE_OWNER_FLOATINGIP)]
|
|
dns_records = {}
|
|
for port in db_ports:
|
|
if self._ovn_client.is_dns_required_for_port(port):
|
|
port_dns_records = self._ovn_client.get_port_dns_records(port)
|
|
if port['network_id'] not in dns_records:
|
|
dns_records[port['network_id']] = {}
|
|
dns_records[port['network_id']].update(port_dns_records)
|
|
|
|
for network_id, port_dns_records in dns_records.items():
|
|
self._set_dns_records(network_id, port_dns_records)
|
|
|
|
def _set_dns_records(self, network_id, dns_records):
|
|
lswitch_name = utils.ovn_name(network_id)
|
|
ls, ls_dns_record = self.ovn_api.get_ls_and_dns_record(lswitch_name)
|
|
|
|
with self.ovn_api.transaction(check_error=True) as txn:
|
|
if not ls_dns_record:
|
|
dns_add_txn = txn.add(self.ovn_api.dns_add(
|
|
external_ids={'ls_name': ls.name}, records=dns_records))
|
|
txn.add(self.ovn_api.ls_set_dns_records(ls.uuid, dns_add_txn))
|
|
else:
|
|
txn.add(self.ovn_api.dns_set_records(ls_dns_record.uuid,
|
|
**dns_records))
|
|
|
|
def _delete_address_sets(self, ctx):
|
|
with self.ovn_api.transaction(check_error=True) as txn:
|
|
for sg in self.core_plugin.get_security_groups(ctx):
|
|
for ip_version in ['ip4', 'ip6']:
|
|
txn.add(self.ovn_api.delete_address_set(
|
|
utils.ovn_addrset_name(sg['id'], ip_version)))
|
|
|
|
def _delete_acls_from_lswitches(self, ctx):
|
|
with self.ovn_api.transaction(check_error=True) as txn:
|
|
for net in self.core_plugin.get_networks(ctx):
|
|
# Calling acl_del from ovsdbapp with no ACL will delete
|
|
# all the ACLs belonging to that Logical Switch.
|
|
txn.add(self.ovn_api.acl_del(utils.ovn_name(net['id'])))
|
|
|
|
def _create_sg_port_groups_and_acls(self, ctx, db_ports):
|
|
# Create a Port Group per Neutron Security Group
|
|
with self.ovn_api.transaction(check_error=True) as txn:
|
|
for sg in self.core_plugin.get_security_groups(ctx):
|
|
pg_name = utils.ovn_port_group_name(sg['id'])
|
|
if self.ovn_api.get_port_group(pg_name):
|
|
continue
|
|
ext_ids = {ovn_const.OVN_SG_EXT_ID_KEY: sg['id']}
|
|
txn.add(self.ovn_api.pg_add(
|
|
name=pg_name, acls=[], external_ids=ext_ids))
|
|
acl_utils.add_acls_for_sg_port_group(self.ovn_api, sg, txn)
|
|
for port in db_ports:
|
|
for sg in port['security_groups']:
|
|
txn.add(self.ovn_api.pg_add_ports(
|
|
utils.ovn_port_group_name(sg), port['id']))
|
|
|
|
def migrate_to_port_groups(self, ctx):
|
|
# This routine is responsible for migrating the current Security
|
|
# Groups and SG Rules to the new Port Groups implementation.
|
|
# 1. Create a Port Group for every existing Neutron Security Group and
|
|
# add all its Security Group Rules as ACLs to that Port Group.
|
|
# 2. Delete all existing Address Sets in NorthBound database which
|
|
# correspond to a Neutron Security Group.
|
|
# 3. Delete all the ACLs in every Logical Switch (Neutron network).
|
|
|
|
# If we've already migrated, return
|
|
if not self.ovn_api.get_address_sets():
|
|
return
|
|
|
|
LOG.debug('Port Groups Migration task started')
|
|
|
|
# Ignore the floating ip ports with device_owner set to
|
|
# constants.DEVICE_OWNER_FLOATINGIP
|
|
db_ports = [port for port in
|
|
self.core_plugin.get_ports(ctx) if not
|
|
utils.is_lsp_ignored(port) and not
|
|
utils.is_lsp_trusted(port) and
|
|
utils.is_port_security_enabled(port)]
|
|
|
|
self._create_sg_port_groups_and_acls(ctx, db_ports)
|
|
self._delete_address_sets(ctx)
|
|
self._delete_acls_from_lswitches(ctx)
|
|
|
|
LOG.debug('Port Groups Migration task finished')
|
|
|
|
|
|
class OvnSbSynchronizer(OvnDbSynchronizer):
|
|
"""Synchronizer class for SB."""
|
|
|
|
def __init__(self, core_plugin, ovn_api, ovn_driver):
|
|
super(OvnSbSynchronizer, self).__init__(
|
|
core_plugin, ovn_api, ovn_driver)
|
|
self.l3_plugin = directory.get_plugin(plugin_constants.L3)
|
|
|
|
def do_sync(self):
|
|
"""Method to sync the OVN_Southbound DB with neutron DB.
|
|
|
|
OvnSbSynchronizer will sync data from OVN_Southbound to neutron. And
|
|
the synchronization will always be performed, no matter what mode it
|
|
is.
|
|
"""
|
|
LOG.debug("Starting OVN-Southbound DB sync process")
|
|
|
|
ctx = context.get_admin_context()
|
|
self.sync_hostname_and_physical_networks(ctx)
|
|
if utils.is_ovn_l3(self.l3_plugin):
|
|
self.l3_plugin.schedule_unhosted_gateways()
|
|
|
|
def sync_hostname_and_physical_networks(self, ctx):
|
|
LOG.debug('OVN-SB Sync hostname and physical networks started')
|
|
host_phynets_map = self.ovn_api.get_chassis_hostname_and_physnets()
|
|
current_hosts = set(host_phynets_map)
|
|
previous_hosts = segments_db.get_hosts_mapped_with_segments(ctx)
|
|
|
|
stale_hosts = previous_hosts - current_hosts
|
|
for host in stale_hosts:
|
|
LOG.debug('Stale host %s found in Neutron, but not in OVN SB DB. '
|
|
'Clear its SegmentHostMapping in Neutron', host)
|
|
self.ovn_driver.update_segment_host_mapping(host, [])
|
|
|
|
new_hosts = current_hosts - previous_hosts
|
|
for host in new_hosts:
|
|
LOG.debug('New host %s found in OVN SB DB, but not in Neutron. '
|
|
'Add its SegmentHostMapping in Neutron', host)
|
|
self.ovn_driver.update_segment_host_mapping(
|
|
host, host_phynets_map[host])
|
|
|
|
for host in current_hosts & previous_hosts:
|
|
LOG.debug('Host %s found both in OVN SB DB and Neutron. '
|
|
'Trigger updating its SegmentHostMapping in Neutron, '
|
|
'to keep OVN SB DB and Neutron have consistent data',
|
|
host)
|
|
self.ovn_driver.update_segment_host_mapping(
|
|
host, host_phynets_map[host])
|
|
|
|
LOG.debug('OVN-SB Sync hostname and physical networks finished')
|