# 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._i18n import _LE 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.nsx_v import lbaas_common as lb_common from vmware_nsx.services.lbaas.nsx_v import lbaas_const as lb_const from vmware_nsx.services.lbaas.nsx_v.v2 import base_mgr LOG = logging.getLogger(__name__) class EdgeHealthMonitorManager(base_mgr.EdgeLoadbalancerBaseManager): @log_helpers.log_method_call def _convert_lbaas_monitor(self, hm): """ Transform OpenStack health monitor dict to NSXv health monitor dict. """ mon = { 'type': lb_const.HEALTH_MONITOR_MAP.get(hm.type, 'icmp'), 'interval': hm.delay, 'timeout': hm.timeout, 'maxRetries': hm.max_retries, 'name': hm.id} if hm.http_method: mon['method'] = hm.http_method if hm.url_path: mon['url'] = hm.url_path return mon @log_helpers.log_method_call def __init__(self, vcns_driver): super(EdgeHealthMonitorManager, self).__init__(vcns_driver) @log_helpers.log_method_call def create(self, context, hm): lb_id = hm.pool.loadbalancer_id lb_binding = nsxv_db.get_nsxv_lbaas_loadbalancer_binding( context.session, lb_id) edge_id = lb_binding['edge_id'] pool_binding = nsxv_db.get_nsxv_lbaas_pool_binding( context.session, lb_id, hm.pool.id) if not pool_binding: self.lbv2_driver.health_monitor.failed_completion( context, hm) msg = _('Failed to create health monitor on edge: %s. ' 'Binding not found') % edge_id LOG.error(msg) raise n_exc.BadRequest(resource='edge-lbaas', msg=msg) edge_pool_id = pool_binding['edge_pool_id'] hm_binding = nsxv_db.get_nsxv_lbaas_monitor_binding( context.session, lb_id, hm.pool.id, hm.id, edge_id) edge_mon_id = None if hm_binding: edge_mon_id = hm_binding['edge_mon_id'] else: edge_monitor = self._convert_lbaas_monitor(hm) try: with locking.LockManager.get_lock(edge_id): h = self.vcns.create_health_monitor(edge_id, edge_monitor)[0] edge_mon_id = lb_common.extract_resource_id(h['location']) nsxv_db.add_nsxv_lbaas_monitor_binding( context.session, lb_id, hm.pool.id, hm.id, edge_id, edge_mon_id) except nsxv_exc.VcnsApiException: with excutils.save_and_reraise_exception(): self.lbv2_driver.health_monitor.failed_completion( context, hm) LOG.error(_LE('Failed to create health monitor on edge: %s' ), edge_id) try: # Associate monitor with Edge pool with locking.LockManager.get_lock(edge_id): edge_pool = self.vcns.get_pool(edge_id, edge_pool_id)[1] if edge_pool.get('monitorId'): edge_pool['monitorId'].append(edge_mon_id) else: edge_pool['monitorId'] = [edge_mon_id] self.vcns.update_pool(edge_id, edge_pool_id, edge_pool) except nsxv_exc.VcnsApiException: with excutils.save_and_reraise_exception(): self.lbv2_driver.health_monitor.failed_completion(context, hm) LOG.error( _LE('Failed to create health monitor on edge: %s'), edge_id) self.lbv2_driver.health_monitor.successful_completion(context, hm) @log_helpers.log_method_call def update(self, context, old_hm, new_hm): lb_id = new_hm.pool.loadbalancer_id lb_binding = nsxv_db.get_nsxv_lbaas_loadbalancer_binding( context.session, lb_id) edge_id = lb_binding['edge_id'] hm_binding = nsxv_db.get_nsxv_lbaas_monitor_binding( context.session, lb_id, new_hm.pool.id, new_hm.id, edge_id) edge_monitor = self._convert_lbaas_monitor(new_hm) try: with locking.LockManager.get_lock(edge_id): self.vcns.update_health_monitor(edge_id, hm_binding['edge_mon_id'], edge_monitor) except nsxv_exc.VcnsApiException: with excutils.save_and_reraise_exception(): self.lbv2_driver.health_monitor.failed_completion(context, new_hm) LOG.error( _LE('Failed to update monitor on edge: %s'), edge_id) self.lbv2_driver.health_monitor.successful_completion(context, new_hm) @log_helpers.log_method_call def delete(self, context, hm): pool_id = hm.pool.id lb_id = hm.pool.loadbalancer_id lb_binding = nsxv_db.get_nsxv_lbaas_loadbalancer_binding( context.session, lb_id) edge_id = lb_binding['edge_id'] pool_binding = nsxv_db.get_nsxv_lbaas_pool_binding( context.session, lb_id, pool_id) if not pool_binding: nsxv_db.del_nsxv_lbaas_monitor_binding( context.session, lb_id, pool_id, hm.id, edge_id) self.lbv2_driver.health_monitor.successful_completion( context, hm, delete=True) return edge_pool_id = pool_binding['edge_pool_id'] hm_binding = nsxv_db.get_nsxv_lbaas_monitor_binding( context.session, lb_id, pool_id, hm.id, edge_id) edge_pool = self.vcns.get_pool(edge_id, edge_pool_id)[1] edge_pool['monitorId'].remove(hm_binding['edge_mon_id']) try: with locking.LockManager.get_lock(edge_id): self.vcns.update_pool(edge_id, edge_pool_id, edge_pool) except nsxv_exc.VcnsApiException: with excutils.save_and_reraise_exception(): self.lbv2_driver.health_monitor.failed_completion(context, hm) LOG.error( _LE('Failed to delete monitor mapping on edge: %s'), edge_id) # If this monitor is not used on this edge anymore, delete it if not edge_pool['monitorId']: try: with locking.LockManager.get_lock(edge_id): self.vcns.delete_health_monitor(hm_binding['edge_id'], hm_binding['edge_mon_id']) except nsxv_exc.VcnsApiException: with excutils.save_and_reraise_exception(): self.lbv2_driver.health_monitor.failed_completion(context, hm) LOG.error( _LE('Failed to delete monitor on edge: %s'), edge_id) nsxv_db.del_nsxv_lbaas_monitor_binding( context.session, lb_id, pool_id, hm.id, edge_id) self.lbv2_driver.health_monitor.successful_completion( context, hm, delete=True)