# Copyright 2015 VMware, Inc. # 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 as logging from oslo_utils import excutils from neutron_lib import exceptions as n_exc from vmware_nsx.common import locking from vmware_nsx.db import nsxv_db from vmware_nsx.plugins.nsx_v.vshield.common import exceptions as nsxv_exc from vmware_nsx.services.lbaas import base_mgr from vmware_nsx.services.lbaas import lb_const from vmware_nsx.services.lbaas.nsx_v import lbaas_common as lb_common from vmware_nsx.services.lbaas.nsx_v.v2 import listener_mgr LOG = logging.getLogger(__name__) class EdgePoolManager(base_mgr.EdgeLoadbalancerBaseManager): @log_helpers.log_method_call def __init__(self, vcns_driver): super(EdgePoolManager, self).__init__(vcns_driver) @log_helpers.log_method_call def create(self, context, pool): edge_pool = { 'name': 'pool_' + pool.id, 'description': getattr(pool, 'description', getattr(pool, 'name')), 'algorithm': lb_const.BALANCE_MAP.get(pool.lb_algorithm, 'round-robin'), 'transparent': False } lb_id = pool.loadbalancer_id lb_binding = nsxv_db.get_nsxv_lbaas_loadbalancer_binding( context.session, lb_id) if not lb_binding: msg = _( 'No suitable Edge found for pool %s') % pool.id raise n_exc.BadRequest(resource='edge-lbaas', msg=msg) edge_id = lb_binding['edge_id'] try: with locking.LockManager.get_lock(edge_id): h = self.vcns.create_pool(edge_id, edge_pool)[0] edge_pool_id = lb_common.extract_resource_id(h['location']) nsxv_db.add_nsxv_lbaas_pool_binding(context.session, lb_id, pool.id, edge_pool_id) if pool.listener: listener_binding = nsxv_db.get_nsxv_lbaas_listener_binding( context.session, lb_id, pool.listener.id) # Associate listener with pool vse = listener_mgr.listener_to_edge_vse( context, pool.listener, lb_binding['vip_address'], edge_pool_id, listener_binding['app_profile_id']) with locking.LockManager.get_lock(edge_id): self.vcns.update_vip(edge_id, listener_binding['vse_id'], vse) # This action also set this pool as the default pool of the # listener, so the application profile may need to be updated if pool.session_persistence: listener_mgr.update_app_profile( self.vcns, context, pool.listener, edge_id) self.lbv2_driver.pool.successful_completion(context, pool) except nsxv_exc.VcnsApiException: with excutils.save_and_reraise_exception(): self.lbv2_driver.pool.failed_completion(context, pool) LOG.error('Failed to create pool %s', pool.id) @log_helpers.log_method_call def update(self, context, old_pool, new_pool): edge_pool = { 'name': 'pool_' + new_pool.id, 'description': getattr(new_pool, 'description', getattr(new_pool, 'name')), 'algorithm': lb_const.BALANCE_MAP.get( new_pool.lb_algorithm, 'round-robin'), 'transparent': False } if new_pool.listener: listener = new_pool.listener lb_id = listener.loadbalancer_id else: lb_id = new_pool.loadbalancer_id lb_binding = nsxv_db.get_nsxv_lbaas_loadbalancer_binding( context.session, lb_id) pool_binding = nsxv_db.get_nsxv_lbaas_pool_binding( context.session, lb_id, new_pool.id) edge_id = lb_binding['edge_id'] edge_pool_id = pool_binding['edge_pool_id'] try: with locking.LockManager.get_lock(edge_id): # get the configured monitor-id org_edge_pool = self.vcns.get_pool(edge_id, edge_pool_id)[1] monitor_id = org_edge_pool.get('monitorId') if monitor_id: edge_pool['monitorId'] = monitor_id # Keep the current members if org_edge_pool.get('member'): edge_pool['member'] = org_edge_pool['member'] self.vcns.update_pool(edge_id, edge_pool_id, edge_pool) self.lbv2_driver.pool.successful_completion(context, new_pool) # if the session_persistence was changed, # we may need to update the listener application profile if new_pool.listener: old_sess_persist = old_pool.session_persistence new_sess_persist = new_pool.session_persistence if new_sess_persist != old_sess_persist: listener_mgr.update_app_profile( self.vcns, context, new_pool.listener, edge_id) except nsxv_exc.VcnsApiException: with excutils.save_and_reraise_exception(): self.lbv2_driver.pool.failed_completion(context, new_pool) LOG.error('Failed to update pool %s', new_pool.id) @log_helpers.log_method_call def delete(self, context, pool): lb_id = pool.loadbalancer_id lb_binding = nsxv_db.get_nsxv_lbaas_loadbalancer_binding( context.session, lb_id) pool_binding = nsxv_db.get_nsxv_lbaas_pool_binding( context.session, lb_id, pool.id) edge_id = lb_binding['edge_id'] if not pool_binding: self.lbv2_driver.pool.successful_completion( context, pool, delete=True) return edge_pool_id = pool_binding['edge_pool_id'] listeners_to_update = [] try: if pool.listeners: for listener in pool.listeners: # the pool session persistence may affect the associated # pool application profile if (pool.session_persistence and listener.default_pool and listener.default_pool.id == pool.id): listeners_to_update.append(listener) listener_binding = nsxv_db.get_nsxv_lbaas_listener_binding( context.session, lb_id, listener.id) vse = listener_mgr.listener_to_edge_vse( context, listener, lb_binding['vip_address'], None, listener_binding['app_profile_id']) with locking.LockManager.get_lock(edge_id): self.vcns.update_vip( edge_id, listener_binding['vse_id'], vse) self.vcns.delete_pool(edge_id, edge_pool_id) self.lbv2_driver.pool.successful_completion( context, pool, delete=True) nsxv_db.del_nsxv_lbaas_pool_binding( context.session, lb_id, pool.id) for listener in listeners_to_update: # need to update the listeners too, now with no default pool listener.default_pool = None listener_mgr.update_app_profile( self.vcns, context, listener, edge_id) except nsxv_exc.VcnsApiException: self.lbv2_driver.pool.failed_completion(context, pool) LOG.error('Failed to delete pool %s', pool.id)