A set of Neutron drivers for the VMware NSX.
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# 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
LOG = logging.getLogger(__name__)
class EdgeHealthMonitorManagerFromDict(base_mgr.EdgeLoadbalancerBaseManager):
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']
if hm['expected_codes']:
mon['expected'] = hm['expected_codes']
return mon
@log_helpers.log_method_call
def __init__(self, vcns_driver):
super(EdgeHealthMonitorManagerFromDict, self).__init__(vcns_driver)
def create(self, context, hm, completor):
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_id = hm['pool']['id']
pool_binding = nsxv_db.get_nsxv_lbaas_pool_binding(
context.session, lb_id, pool_id)
if not pool_binding:
completor(success=False)
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, 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, pool_id, hm['id'], edge_id,
edge_mon_id)
except nsxv_exc.VcnsApiException:
with excutils.save_and_reraise_exception():
completor(success=False)
LOG.error('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():
completor(success=False)
LOG.error('Failed to create health monitor on edge: %s',
edge_id)
completor(success=True)
def update(self, context, old_hm, new_hm, completor):
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():
completor(success=False)
LOG.error('Failed to update monitor on edge: %s', edge_id)
completor(success=True)
def delete(self, context, hm, completor):
pool_id = hm['pool']['id']
lb_id = hm['pool']['loadbalancer_id']
lb_binding = nsxv_db.get_nsxv_lbaas_loadbalancer_binding(
context.session, lb_id)
if not lb_binding:
# Don't fail deletion if the resource is already gone
LOG.warning("Couldn't find LB %s binding during HM deletion",
lb_id)
completor(success=True)
return
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)
completor(success=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)
try:
edge_pool = self.vcns.get_pool(edge_id, edge_pool_id)[1]
except nsxv_exc.RequestBad:
# Pool doesn't exist, so member is obviously gone
LOG.warning('Edge pool %s does not exist on edge %s',
edge_pool_id, edge_id)
nsxv_db.del_nsxv_lbaas_monitor_binding(
context.session, lb_id, pool_id, hm['id'], edge_id)
completor(success=True)
return
if hm_binding and hm_binding['edge_mon_id'] in edge_pool['monitorId']:
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():
completor(success=False)
LOG.error('Failed to delete monitor mapping on edge: %s',
edge_id)
# If this monitor is not used on this edge anymore, delete it
if hm_binding and 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():
completor(success=False)
LOG.error('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)
completor(success=True)
def delete_cascade(self, context, hm, completor):
self.delete(context, hm, completor)