/usr/lib/python2.7/dist-packages/neutron_lbaas/drivers/common/agent_callbacks.py is in python-neutron-lbaas 1:9.1.0-2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 | # Copyright 2015 Rackspace.
#
# 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 neutron.extensions import portbindings
from neutron.plugins.common import constants
from neutron_lib import exceptions as n_exc
from oslo_log import log as logging
import oslo_messaging as messaging
from neutron_lbaas._i18n import _, _LW
from neutron_lbaas.db.loadbalancer import loadbalancer_dbv2
from neutron_lbaas.db.loadbalancer import models as db_models
from neutron_lbaas.services.loadbalancer import data_models
LOG = logging.getLogger(__name__)
class LoadBalancerCallbacks(object):
# history
# 1.0 Initial version
target = messaging.Target(version='1.0')
def __init__(self, plugin):
super(LoadBalancerCallbacks, self).__init__()
self.plugin = plugin
def get_ready_devices(self, context, host=None):
with context.session.begin(subtransactions=True):
agents = self.plugin.db.get_lbaas_agents(
context, filters={'host': [host]})
if not agents:
return []
elif len(agents) > 1:
LOG.warning(_LW('Multiple lbaas agents found on host %s'),
host)
loadbalancers = self.plugin.db.list_loadbalancers_on_lbaas_agent(
context, agents[0].id)
loadbalancer_ids = [
l.id for l in loadbalancers]
qry = context.session.query(
loadbalancer_dbv2.models.LoadBalancer.id)
qry = qry.filter(
loadbalancer_dbv2.models.LoadBalancer.id.in_(
loadbalancer_ids))
qry = qry.filter(
loadbalancer_dbv2.models.LoadBalancer.provisioning_status.in_(
constants.ACTIVE_PENDING_STATUSES))
up = True # makes pep8 and sqlalchemy happy
qry = qry.filter(
loadbalancer_dbv2.models.LoadBalancer.admin_state_up == up)
return [id for id, in qry]
def get_loadbalancer(self, context, loadbalancer_id=None):
lb_model = self.plugin.db.get_loadbalancer(context, loadbalancer_id)
if lb_model.vip_port and lb_model.vip_port.fixed_ips:
for fixed_ip in lb_model.vip_port.fixed_ips:
subnet_dict = self.plugin.db._core_plugin.get_subnet(
context, fixed_ip.subnet_id
)
setattr(fixed_ip, 'subnet', data_models.Subnet.from_dict(
subnet_dict))
if lb_model.provider:
device_driver = self.plugin.drivers[
lb_model.provider.provider_name].device_driver
setattr(lb_model.provider, 'device_driver', device_driver)
lb_dict = lb_model.to_dict(stats=False)
return lb_dict
def loadbalancer_deployed(self, context, loadbalancer_id):
with context.session.begin(subtransactions=True):
qry = context.session.query(db_models.LoadBalancer)
qry = qry.filter_by(id=loadbalancer_id)
loadbalancer = qry.one()
# set all resources to active
if (loadbalancer.provisioning_status in
constants.ACTIVE_PENDING_STATUSES):
loadbalancer.provisioning_status = constants.ACTIVE
if loadbalancer.listeners:
for l in loadbalancer.listeners:
if (l.provisioning_status in
constants.ACTIVE_PENDING_STATUSES):
l.provisioning_status = constants.ACTIVE
if (l.default_pool
and l.default_pool.provisioning_status in
constants.ACTIVE_PENDING_STATUSES):
l.default_pool.provisioning_status = constants.ACTIVE
if l.default_pool.members:
for m in l.default_pool.members:
if (m.provisioning_status in
constants.ACTIVE_PENDING_STATUSES):
m.provisioning_status = constants.ACTIVE
if l.default_pool.healthmonitor:
hm = l.default_pool.healthmonitor
ps = hm.provisioning_status
if ps in constants.ACTIVE_PENDING_STATUSES:
(l.default_pool.healthmonitor
.provisioning_status) = constants.ACTIVE
def update_status(self, context, obj_type, obj_id,
provisioning_status=None, operating_status=None):
if not provisioning_status and not operating_status:
LOG.warning(_LW('update_status for %(obj_type)s %(obj_id)s called '
'without specifying provisioning_status or '
'operating_status') % {'obj_type': obj_type,
'obj_id': obj_id})
return
model_mapping = {
'loadbalancer': db_models.LoadBalancer,
'pool': db_models.PoolV2,
'listener': db_models.Listener,
'member': db_models.MemberV2,
'healthmonitor': db_models.HealthMonitorV2
}
if obj_type not in model_mapping:
raise n_exc.Invalid(_('Unknown object type: %s') % obj_type)
try:
self.plugin.db.update_status(
context, model_mapping[obj_type], obj_id,
provisioning_status=provisioning_status,
operating_status=operating_status)
except n_exc.NotFound:
# update_status may come from agent on an object which was
# already deleted from db with other request
LOG.warning(_LW('Cannot update status: %(obj_type)s %(obj_id)s '
'not found in the DB, it was probably deleted '
'concurrently'),
{'obj_type': obj_type, 'obj_id': obj_id})
def loadbalancer_destroyed(self, context, loadbalancer_id=None):
"""Agent confirmation hook that a load balancer has been destroyed.
This method exists for subclasses to change the deletion
behavior.
"""
pass
def plug_vip_port(self, context, port_id=None, host=None):
if not port_id:
return
try:
port = self.plugin.db._core_plugin.get_port(
context,
port_id
)
except n_exc.PortNotFound:
LOG.debug('Unable to find port %s to plug.', port_id)
return
port['admin_state_up'] = True
port[portbindings.HOST_ID] = host
self.plugin.db._core_plugin.update_port(
context,
port_id,
{'port': port}
)
def unplug_vip_port(self, context, port_id=None, host=None):
if not port_id:
return
try:
port = self.plugin.db._core_plugin.get_port(
context,
port_id
)
except n_exc.PortNotFound:
LOG.debug('Unable to find port %s to unplug. This can occur when '
'the Vip has been deleted first.',
port_id)
return
port['admin_state_up'] = False
port['device_owner'] = ''
port['device_id'] = ''
try:
self.plugin.db._core_plugin.update_port(
context,
port_id,
{'port': port}
)
except n_exc.PortNotFound:
LOG.debug('Unable to find port %s to unplug. This can occur when '
'the Vip has been deleted first.',
port_id)
def update_loadbalancer_stats(self, context,
loadbalancer_id=None,
stats=None):
self.plugin.db.update_loadbalancer_stats(context, loadbalancer_id,
stats)
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