194 lines
8.6 KiB
Python
194 lines
8.6 KiB
Python
# Copyright 2017 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 neutron_lib import exceptions as n_exc
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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 vmware_nsx._i18n import _
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from vmware_nsx.common import exceptions as nsx_exc
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from vmware_nsx.common import locking
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from vmware_nsx.db import db as nsx_db
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from vmware_nsx.services.lbaas import base_mgr
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from vmware_nsx.services.lbaas.nsx_v3.implementation import lb_utils
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from vmware_nsxlib.v3 import exceptions as nsxlib_exc
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LOG = logging.getLogger(__name__)
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class EdgeMemberManagerFromDict(base_mgr.Nsxv3LoadbalancerBaseManager):
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@log_helpers.log_method_call
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def _get_info_from_fip(self, context, fip):
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filters = {'floating_ip_address': [fip]}
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floating_ips = self.core_plugin.get_floatingips(context,
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filters=filters)
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if floating_ips:
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return (floating_ips[0]['fixed_ip_address'],
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floating_ips[0]['router_id'])
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else:
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msg = (_('Member IP %(fip)s is an external IP, and is expected to '
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'be a floating IP') % {'fip': fip})
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raise n_exc.BadRequest(resource='lbaas-vip', msg=msg)
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@log_helpers.log_method_call
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def _get_updated_pool_members(self, context, lb_pool, member):
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network = lb_utils.get_network_from_subnet(
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context, self.core_plugin, member['subnet_id'])
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if network.get('router:external'):
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fixed_ip, router_id = self._get_info_from_fip(
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context, member['address'])
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else:
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fixed_ip = member['address']
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for m in lb_pool['members']:
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if m['ip_address'] == fixed_ip:
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m['display_name'] = member['name'][:219] + '_' + member['id']
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m['weight'] = member['weight']
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return lb_pool['members']
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@log_helpers.log_method_call
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def create(self, context, member, completor):
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with locking.LockManager.get_lock(
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'member-%s' % str(member['pool']['loadbalancer_id'])):
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self._member_create(context, member, completor)
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@log_helpers.log_method_call
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def _member_create(self, context, member, completor):
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lb_id = member['pool']['loadbalancer_id']
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pool_id = member['pool']['id']
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loadbalancer = member['pool']['loadbalancer']
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if not lb_utils.validate_lb_member_subnet(context, self.core_plugin,
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member['subnet_id'],
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loadbalancer):
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completor(success=False)
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msg = (_('Cannot add member %(member)s to pool as member subnet '
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'%(subnet)s is neither public nor connected to the LB '
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'router') %
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{'member': member['id'], 'subnet': member['subnet_id']})
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raise n_exc.BadRequest(resource='lbaas-subnet', msg=msg)
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pool_client = self.core_plugin.nsxlib.load_balancer.pool
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network = lb_utils.get_network_from_subnet(
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context, self.core_plugin, member['subnet_id'])
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if network.get('router:external'):
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fixed_ip, router_id = self._get_info_from_fip(
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context, member['address'])
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if not router_id:
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completor(success=False)
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msg = (_('Floating ip %(fip)s has no router') % {
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'fip': member['address']})
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raise n_exc.BadRequest(resource='lbaas-vip', msg=msg)
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else:
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router_id = lb_utils.get_router_from_network(
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context, self.core_plugin, member['subnet_id'])
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fixed_ip = member['address']
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binding = nsx_db.get_nsx_lbaas_pool_binding(context.session,
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lb_id, pool_id)
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if binding:
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lb_pool_id = binding.get('lb_pool_id')
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lb_binding = nsx_db.get_nsx_lbaas_loadbalancer_binding(
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context.session, lb_id)
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if not lb_binding:
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completor(success=False)
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msg = (_('Failed to get LB binding for member %s') %
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member['id'])
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raise nsx_exc.NsxPluginException(err_msg=msg)
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with locking.LockManager.get_lock('pool-member-%s' % lb_pool_id):
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lb_pool = pool_client.get(lb_pool_id)
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old_m = lb_pool.get('members', None)
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new_m = [{
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'display_name': member['name'][:219] + '_' + member['id'],
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'ip_address': fixed_ip,
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'port': member['protocol_port'],
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'weight': member['weight']}]
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members = (old_m + new_m) if old_m else new_m
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pool_client.update_pool_with_members(lb_pool_id, members)
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else:
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completor(success=False)
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msg = (_('Failed to get pool binding to add member %s') %
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member['id'])
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raise nsx_exc.NsxPluginException(err_msg=msg)
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completor(success=True)
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@log_helpers.log_method_call
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def update(self, context, old_member, new_member, completor):
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lb_id = old_member['pool']['loadbalancer_id']
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pool_id = old_member['pool']['id']
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pool_client = self.core_plugin.nsxlib.load_balancer.pool
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pool_binding = nsx_db.get_nsx_lbaas_pool_binding(
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context.session, lb_id, pool_id)
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if pool_binding:
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lb_pool_id = pool_binding.get('lb_pool_id')
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try:
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with locking.LockManager.get_lock('pool-member-%s' %
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lb_pool_id):
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lb_pool = pool_client.get(lb_pool_id)
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updated_members = self._get_updated_pool_members(
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context, lb_pool, new_member)
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pool_client.update_pool_with_members(lb_pool_id,
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updated_members)
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except Exception as e:
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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 member %(member)s: '
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'%(err)s',
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{'member': old_member['id'], 'err': e})
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completor(success=True)
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@log_helpers.log_method_call
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def delete(self, context, member, completor):
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lb_id = member['pool']['loadbalancer_id']
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pool_id = member['pool']['id']
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pool_client = self.core_plugin.nsxlib.load_balancer.pool
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pool_binding = nsx_db.get_nsx_lbaas_pool_binding(
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context.session, lb_id, pool_id)
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if pool_binding:
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lb_pool_id = pool_binding.get('lb_pool_id')
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try:
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with locking.LockManager.get_lock('pool-member-%s' %
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lb_pool_id):
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lb_pool = pool_client.get(lb_pool_id)
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network = lb_utils.get_network_from_subnet(
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context, self.core_plugin, member['subnet_id'])
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if network.get('router:external'):
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fixed_ip, router_id = self._get_info_from_fip(
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context, member['address'])
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else:
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fixed_ip = member['address']
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if 'members' in lb_pool:
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m_list = lb_pool['members']
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members = [m for m in m_list
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if m['ip_address'] != fixed_ip]
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pool_client.update_pool_with_members(lb_pool_id,
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members)
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except nsxlib_exc.ResourceNotFound:
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pass
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except nsxlib_exc.ManagerError:
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completor(success=False)
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msg = _('Failed to remove member from pool on NSX backend')
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raise n_exc.BadRequest(resource='lbaas-member', msg=msg)
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completor(success=True)
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@log_helpers.log_method_call
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def delete_cascade(self, context, member, completor):
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# No action should be taken on members delete cascade
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pass
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