193 lines
7.4 KiB
Python
193 lines
7.4 KiB
Python
# Copyright 2015 VMware, Inc.
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# All Rights Reserved
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#
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# 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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from oslo_log import helpers as log_helpers
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from oslo_log import log as logging
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from oslo_utils import excutils
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from neutron_lib import exceptions as n_exc
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from vmware_nsx.common import locking
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from vmware_nsx.db import nsxv_db
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from vmware_nsx.plugins.nsx_v.vshield.common import exceptions as nsxv_exc
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from vmware_nsx.services.lbaas import base_mgr
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from vmware_nsx.services.lbaas import lb_const
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from vmware_nsx.services.lbaas.nsx_v import lbaas_common as lb_common
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LOG = logging.getLogger(__name__)
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class EdgeHealthMonitorManagerFromDict(base_mgr.EdgeLoadbalancerBaseManager):
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@log_helpers.log_method_call
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def _convert_lbaas_monitor(self, hm):
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"""
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Transform OpenStack health monitor dict to NSXv health monitor dict.
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"""
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mon = {
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'type': lb_const.HEALTH_MONITOR_MAP.get(hm['type'], 'icmp'),
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'interval': hm['delay'],
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'timeout': hm['timeout'],
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'maxRetries': hm['max_retries'],
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'name': hm['id']}
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if hm['http_method']:
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mon['method'] = hm['http_method']
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if hm['url_path']:
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mon['url'] = hm['url_path']
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if hm['expected_codes']:
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mon['expected'] = hm['expected_codes']
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return mon
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@log_helpers.log_method_call
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def __init__(self, vcns_driver):
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super(EdgeHealthMonitorManagerFromDict, self).__init__(vcns_driver)
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def create(self, context, hm, completor):
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lb_id = hm['pool']['loadbalancer_id']
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lb_binding = nsxv_db.get_nsxv_lbaas_loadbalancer_binding(
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context.session, lb_id)
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edge_id = lb_binding['edge_id']
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pool_id = hm['pool']['id']
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pool_binding = nsxv_db.get_nsxv_lbaas_pool_binding(
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context.session, lb_id, pool_id)
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if not pool_binding:
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completor(success=False)
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msg = _('Failed to create health monitor on edge: %s. '
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'Binding not found') % edge_id
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LOG.error(msg)
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raise n_exc.BadRequest(resource='edge-lbaas', msg=msg)
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edge_pool_id = pool_binding['edge_pool_id']
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hm_binding = nsxv_db.get_nsxv_lbaas_monitor_binding(
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context.session, lb_id, pool_id, hm['id'], edge_id)
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edge_mon_id = None
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if hm_binding:
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edge_mon_id = hm_binding['edge_mon_id']
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else:
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edge_monitor = self._convert_lbaas_monitor(hm)
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try:
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with locking.LockManager.get_lock(edge_id):
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h = self.vcns.create_health_monitor(edge_id,
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edge_monitor)[0]
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edge_mon_id = lb_common.extract_resource_id(h['location'])
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nsxv_db.add_nsxv_lbaas_monitor_binding(
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context.session, lb_id, pool_id, hm['id'], edge_id,
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edge_mon_id)
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except nsxv_exc.VcnsApiException:
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with excutils.save_and_reraise_exception():
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completor(success=False)
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LOG.error('Failed to create health monitor on edge: %s',
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edge_id)
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try:
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# Associate monitor with Edge pool
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with locking.LockManager.get_lock(edge_id):
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edge_pool = self.vcns.get_pool(edge_id, edge_pool_id)[1]
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if edge_pool.get('monitorId'):
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edge_pool['monitorId'].append(edge_mon_id)
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else:
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edge_pool['monitorId'] = [edge_mon_id]
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self.vcns.update_pool(edge_id, edge_pool_id, edge_pool)
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except nsxv_exc.VcnsApiException:
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with excutils.save_and_reraise_exception():
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completor(success=False)
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LOG.error('Failed to create health monitor on edge: %s',
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edge_id)
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completor(success=True)
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def update(self, context, old_hm, new_hm, completor):
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lb_id = new_hm['pool']['loadbalancer_id']
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lb_binding = nsxv_db.get_nsxv_lbaas_loadbalancer_binding(
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context.session, lb_id)
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edge_id = lb_binding['edge_id']
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hm_binding = nsxv_db.get_nsxv_lbaas_monitor_binding(
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context.session, lb_id, new_hm['pool']['id'],
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new_hm['id'], edge_id)
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edge_monitor = self._convert_lbaas_monitor(new_hm)
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try:
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with locking.LockManager.get_lock(edge_id):
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self.vcns.update_health_monitor(edge_id,
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hm_binding['edge_mon_id'],
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edge_monitor)
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except nsxv_exc.VcnsApiException:
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with excutils.save_and_reraise_exception():
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completor(success=False)
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LOG.error('Failed to update monitor on edge: %s', edge_id)
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completor(success=True)
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def delete(self, context, hm, completor):
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pool_id = hm['pool']['id']
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lb_id = hm['pool']['loadbalancer_id']
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lb_binding = nsxv_db.get_nsxv_lbaas_loadbalancer_binding(
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context.session, lb_id)
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edge_id = lb_binding['edge_id']
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pool_binding = nsxv_db.get_nsxv_lbaas_pool_binding(
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context.session, lb_id, pool_id)
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if not pool_binding:
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nsxv_db.del_nsxv_lbaas_monitor_binding(
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context.session, lb_id, pool_id, hm['id'], edge_id)
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completor(success=True)
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return
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edge_pool_id = pool_binding['edge_pool_id']
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hm_binding = nsxv_db.get_nsxv_lbaas_monitor_binding(
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context.session, lb_id, pool_id, hm['id'], edge_id)
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edge_pool = self.vcns.get_pool(edge_id, edge_pool_id)[1]
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if hm_binding and hm_binding['edge_mon_id'] in edge_pool['monitorId']:
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edge_pool['monitorId'].remove(hm_binding['edge_mon_id'])
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try:
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with locking.LockManager.get_lock(edge_id):
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self.vcns.update_pool(edge_id, edge_pool_id, edge_pool)
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except nsxv_exc.VcnsApiException:
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with excutils.save_and_reraise_exception():
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completor(success=False)
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LOG.error('Failed to delete monitor mapping on edge: %s',
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edge_id)
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# If this monitor is not used on this edge anymore, delete it
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if hm_binding and not edge_pool['monitorId']:
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try:
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with locking.LockManager.get_lock(edge_id):
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self.vcns.delete_health_monitor(hm_binding['edge_id'],
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hm_binding['edge_mon_id'])
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except nsxv_exc.VcnsApiException:
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with excutils.save_and_reraise_exception():
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completor(success=False)
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LOG.error('Failed to delete monitor on edge: %s', edge_id)
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nsxv_db.del_nsxv_lbaas_monitor_binding(
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context.session, lb_id, pool_id, hm['id'], edge_id)
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completor(success=True)
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