/usr/lib/python2.7/dist-packages/neutron_lbaas/db/loadbalancer/loadbalancer_dbv2.py is in python-neutron-lbaas 1:9.1.0-2.
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# Copyright 2014-2015 Rackspace. 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.
import re
import netaddr
from neutron.callbacks import events
from neutron.callbacks import registry
from neutron.callbacks import resources
from neutron.common import ipv6_utils
from neutron.db import api as db_api
from neutron.db import common_db_mixin as base_db
from neutron import manager
from neutron.plugins.common import constants
from neutron_lib import constants as n_const
from neutron_lib import exceptions as n_exc
from oslo_db import exception
from oslo_log import log as logging
from oslo_utils import excutils
from oslo_utils import uuidutils
from sqlalchemy import orm
from sqlalchemy.orm import exc
from sqlalchemy.orm import lazyload
from neutron_lbaas._i18n import _
from neutron_lbaas import agent_scheduler
from neutron_lbaas.db.loadbalancer import models
from neutron_lbaas.extensions import l7
from neutron_lbaas.extensions import loadbalancerv2
from neutron_lbaas.extensions import sharedpools
from neutron_lbaas.services.loadbalancer import constants as lb_const
from neutron_lbaas.services.loadbalancer import data_models
LOG = logging.getLogger(__name__)
class LoadBalancerPluginDbv2(base_db.CommonDbMixin,
agent_scheduler.LbaasAgentSchedulerDbMixin):
"""Wraps loadbalancer with SQLAlchemy models.
A class that wraps the implementation of the Neutron loadbalancer
plugin database access interface using SQLAlchemy models.
"""
@property
def _core_plugin(self):
return manager.NeutronManager.get_plugin()
def _get_resource(self, context, model, id, for_update=False):
resource = None
try:
if for_update:
# To lock the instance for update, return a single
# instance, instead of an instance with LEFT OUTER
# JOINs that do not work in PostgreSQL
query = self._model_query(context, model).options(
lazyload('*')
).filter(
model.id == id).with_lockmode('update')
resource = query.one()
else:
resource = self._get_by_id(context, model, id)
except exc.NoResultFound:
with excutils.save_and_reraise_exception(reraise=False) as ctx:
if issubclass(model, (models.LoadBalancer, models.Listener,
models.L7Policy, models.L7Rule,
models.PoolV2, models.MemberV2,
models.HealthMonitorV2,
models.LoadBalancerStatistics,
models.SessionPersistenceV2)):
raise loadbalancerv2.EntityNotFound(name=model.NAME, id=id)
ctx.reraise = True
return resource
def _resource_exists(self, context, model, id):
try:
self._get_by_id(context, model, id)
except exc.NoResultFound:
return False
return True
def _get_resources(self, context, model, filters=None):
query = self._get_collection_query(context, model,
filters=filters)
return [model_instance for model_instance in query]
def _create_port_choose_fixed_ip(self, fixed_ips):
# Neutron will try to allocate IPv4, IPv6, and IPv6 EUI-64 addresses.
# We're most interested in the IPv4 address. An IPv4 vip can be
# routable from IPv6. Creating a port by network can be used to manage
# the dwindling, fragmented IPv4 address space. IPv6 has enough
# addresses that a single subnet can always be created that's big
# enough to allocate all vips.
for fixed_ip in fixed_ips:
ip_address = fixed_ip['ip_address']
ip = netaddr.IPAddress(ip_address)
if ip.version == 4:
return fixed_ip
# An EUI-64 address isn't useful as a vip
for fixed_ip in fixed_ips:
ip_address = fixed_ip['ip_address']
ip = netaddr.IPAddress(ip_address)
if ip.version == 6 and not ipv6_utils.is_eui64_address(ip_address):
return fixed_ip
for fixed_ip in fixed_ips:
return fixed_ip
def _create_port_for_load_balancer(self, context, lb_db, ip_address,
network_id=None):
if lb_db.vip_subnet_id:
assign_subnet = False
# resolve subnet and create port
subnet = self._core_plugin.get_subnet(context, lb_db.vip_subnet_id)
network_id = subnet['network_id']
fixed_ip = {'subnet_id': subnet['id']}
if ip_address and ip_address != n_const.ATTR_NOT_SPECIFIED:
fixed_ip['ip_address'] = ip_address
fixed_ips = [fixed_ip]
elif network_id and network_id != n_const.ATTR_NOT_SPECIFIED:
assign_subnet = True
fixed_ips = n_const.ATTR_NOT_SPECIFIED
else:
attrs = _("vip_subnet_id or vip_network_id")
raise loadbalancerv2.RequiredAttributeNotSpecified(attr_name=attrs)
port_data = {
'tenant_id': lb_db.tenant_id,
'name': 'loadbalancer-' + lb_db.id,
'network_id': network_id,
'mac_address': n_const.ATTR_NOT_SPECIFIED,
'admin_state_up': False,
'device_id': lb_db.id,
'device_owner': n_const.DEVICE_OWNER_LOADBALANCERV2,
'fixed_ips': fixed_ips
}
port = self._core_plugin.create_port(context, {'port': port_data})
lb_db.vip_port_id = port['id']
if assign_subnet:
fixed_ip = self._create_port_choose_fixed_ip(port['fixed_ips'])
lb_db.vip_address = fixed_ip['ip_address']
lb_db.vip_subnet_id = fixed_ip['subnet_id']
else:
for fixed_ip in port['fixed_ips']:
if fixed_ip['subnet_id'] == lb_db.vip_subnet_id:
lb_db.vip_address = fixed_ip['ip_address']
break
def _create_loadbalancer_stats(self, context, loadbalancer_id, data=None):
# This is internal method to add load balancer statistics. It won't
# be exposed to API
data = data or {}
stats_db = models.LoadBalancerStatistics(
loadbalancer_id=loadbalancer_id,
bytes_in=data.get(lb_const.STATS_IN_BYTES, 0),
bytes_out=data.get(lb_const.STATS_OUT_BYTES, 0),
active_connections=data.get(lb_const.STATS_ACTIVE_CONNECTIONS, 0),
total_connections=data.get(lb_const.STATS_TOTAL_CONNECTIONS, 0)
)
return stats_db
def _delete_loadbalancer_stats(self, context, loadbalancer_id):
# This is internal method to delete pool statistics. It won't
# be exposed to API
with context.session.begin(subtransactions=True):
stats_qry = context.session.query(models.LoadBalancerStatistics)
try:
stats = stats_qry.filter_by(
loadbalancer_id=loadbalancer_id).one()
except exc.NoResultFound:
raise loadbalancerv2.EntityNotFound(
name=models.LoadBalancerStatistics.NAME,
id=loadbalancer_id)
context.session.delete(stats)
def _load_id(self, context, model_dict):
model_dict['id'] = uuidutils.generate_uuid()
def check_subnet_exists(self, context, subnet_id):
try:
self._core_plugin.get_subnet(context, subnet_id)
except n_exc.SubnetNotFound:
raise loadbalancerv2.EntityNotFound(name="Subnet", id=subnet_id)
def assert_modification_allowed(self, obj):
status = getattr(obj, 'provisioning_status', None)
if status in [constants.PENDING_DELETE, constants.PENDING_UPDATE,
constants.PENDING_CREATE]:
id = getattr(obj, 'id', None)
raise loadbalancerv2.StateInvalid(id=id, state=status)
def test_and_set_status(self, context, model, id, status):
with context.session.begin(subtransactions=True):
db_lb_child = None
if model == models.LoadBalancer:
db_lb = self._get_resource(context, model, id, for_update=True)
else:
db_lb_child = self._get_resource(context, model, id)
db_lb = self._get_resource(context, models.LoadBalancer,
db_lb_child.root_loadbalancer.id)
# This method will raise an exception if modification is not
# allowed.
self.assert_modification_allowed(db_lb)
# if the model passed in is not a load balancer then we will
# set its root load balancer's provisioning status to
# PENDING_UPDATE and the model's status to the status passed in
# Otherwise we are just setting the load balancer's provisioning
# status to the status passed in
if db_lb_child:
db_lb.provisioning_status = constants.PENDING_UPDATE
db_lb_child.provisioning_status = status
else:
db_lb.provisioning_status = status
def update_loadbalancer_provisioning_status(self, context, lb_id,
status=constants.ACTIVE):
self.update_status(context, models.LoadBalancer, lb_id,
provisioning_status=status)
def update_status(self, context, model, id, provisioning_status=None,
operating_status=None):
with context.session.begin(subtransactions=True):
if issubclass(model, models.LoadBalancer):
try:
model_db = (self._model_query(context, model).
filter(model.id == id).
options(orm.noload('vip_port')).
one())
except exc.NoResultFound:
raise loadbalancerv2.EntityNotFound(
name=models.LoadBalancer.NAME, id=id)
else:
model_db = self._get_resource(context, model, id)
if provisioning_status and (model_db.provisioning_status !=
provisioning_status):
model_db.provisioning_status = provisioning_status
if (operating_status and hasattr(model_db, 'operating_status') and
model_db.operating_status != operating_status):
model_db.operating_status = operating_status
def create_loadbalancer_graph(self, context, loadbalancer,
allocate_vip=True):
l7policies_ids = []
with context.session.begin(subtransactions=True):
listeners = loadbalancer.pop('listeners', [])
lb_db = self.create_loadbalancer(context, loadbalancer,
allocate_vip=allocate_vip)
for listener in listeners:
listener['loadbalancer_id'] = lb_db.id
default_pool = listener.pop('default_pool', None)
if (default_pool and
default_pool != n_const.ATTR_NOT_SPECIFIED):
default_pool['loadbalancer_id'] = lb_db.id
hm = default_pool.pop('healthmonitor', None)
if hm and hm != n_const.ATTR_NOT_SPECIFIED:
hm_db = self.create_healthmonitor(context, hm)
default_pool['healthmonitor_id'] = hm_db.id
members = default_pool.pop('members', [])
pool_db = self.create_pool(context, default_pool)
listener['default_pool_id'] = pool_db.id
for member in members:
member['pool_id'] = pool_db.id
self.create_pool_member(context, member, pool_db.id)
l7policies = listener.pop('l7policies', None)
listener_db = self.create_listener(context, listener)
if (l7policies and l7policies !=
n_const.ATTR_NOT_SPECIFIED):
for l7policy in l7policies:
l7policy['listener_id'] = listener_db.id
redirect_pool = l7policy.pop('redirect_pool', None)
l7rules = l7policy.pop('rules', [])
if (redirect_pool and redirect_pool !=
n_const.ATTR_NOT_SPECIFIED):
redirect_pool['loadbalancer_id'] = lb_db.id
rhm = redirect_pool.pop('healthmonitor', None)
rmembers = redirect_pool.pop('members', [])
if rhm and rhm != n_const.ATTR_NOT_SPECIFIED:
rhm_db = self.create_healthmonitor(context,
rhm)
redirect_pool['healthmonitor_id'] = rhm_db.id
rpool_db = self.create_pool(context, redirect_pool)
l7policy['redirect_pool_id'] = rpool_db.id
for rmember in rmembers:
rmember['pool_id'] = rpool_db.id
self.create_pool_member(context, rmember,
rpool_db.id)
l7policy_db = self.create_l7policy(context, l7policy)
l7policies_ids.append(l7policy_db.id)
if (l7rules and l7rules !=
n_const.ATTR_NOT_SPECIFIED):
for l7rule in l7rules:
self.create_l7policy_rule(
context, l7rule, l7policy_db.id)
# SQL Alchemy cache issue where l7rules won't show up as intended.
for l7policy_id in l7policies_ids:
l7policy_db = self._get_resource(context, models.L7Policy,
l7policy_id)
context.session.expire(l7policy_db)
return self.get_loadbalancer(context, lb_db.id)
def create_loadbalancer(self, context, loadbalancer, allocate_vip=True):
self._load_id(context, loadbalancer)
vip_network_id = loadbalancer.pop('vip_network_id', None)
vip_subnet_id = loadbalancer.pop('vip_subnet_id', None)
vip_address = loadbalancer.pop('vip_address')
if vip_subnet_id and vip_subnet_id != n_const.ATTR_NOT_SPECIFIED:
loadbalancer['vip_subnet_id'] = vip_subnet_id
loadbalancer['provisioning_status'] = constants.PENDING_CREATE
loadbalancer['operating_status'] = lb_const.OFFLINE
lb_db = models.LoadBalancer(**loadbalancer)
# create port outside of lb create transaction since it can sometimes
# cause lock wait timeouts
if allocate_vip:
LOG.debug("Plugin will allocate the vip as a neutron port.")
self._create_port_for_load_balancer(context, lb_db,
vip_address, vip_network_id)
with context.session.begin(subtransactions=True):
context.session.add(lb_db)
context.session.flush()
lb_db.stats = self._create_loadbalancer_stats(
context, lb_db.id)
context.session.add(lb_db)
context.session.flush()
return data_models.LoadBalancer.from_sqlalchemy_model(lb_db)
def update_loadbalancer(self, context, id, loadbalancer):
with context.session.begin(subtransactions=True):
lb_db = self._get_resource(context, models.LoadBalancer, id)
lb_db.update(loadbalancer)
return data_models.LoadBalancer.from_sqlalchemy_model(lb_db)
def delete_loadbalancer(self, context, id, delete_vip_port=True):
with context.session.begin(subtransactions=True):
lb_db = self._get_resource(context, models.LoadBalancer, id)
context.session.delete(lb_db)
if delete_vip_port and lb_db.vip_port:
self._delete_vip_port(context, lb_db.vip_port_id)
@db_api.retry_db_errors
def _delete_vip_port(self, context, vip_port_id):
self._core_plugin.delete_port(context, vip_port_id)
def prevent_lbaasv2_port_deletion(self, context, port_id):
try:
port_db = self._core_plugin._get_port(context, port_id)
except n_exc.PortNotFound:
return
if port_db['device_owner'] == n_const.DEVICE_OWNER_LOADBALANCERV2:
filters = {'vip_port_id': [port_id]}
if len(self.get_loadbalancers(context, filters=filters)) > 0:
reason = _('has device owner %s') % port_db['device_owner']
raise n_exc.ServicePortInUse(port_id=port_db['id'],
reason=reason)
def subscribe(self):
registry.subscribe(
_prevent_lbaasv2_port_delete_callback, resources.PORT,
events.BEFORE_DELETE)
def get_loadbalancers(self, context, filters=None):
lb_dbs = self._get_resources(context, models.LoadBalancer,
filters=filters)
return [data_models.LoadBalancer.from_sqlalchemy_model(lb_db)
for lb_db in lb_dbs]
def get_loadbalancer(self, context, id):
lb_db = self._get_resource(context, models.LoadBalancer, id)
return data_models.LoadBalancer.from_sqlalchemy_model(lb_db)
def _validate_listener_data(self, context, listener):
pool_id = listener.get('default_pool_id')
lb_id = listener.get('loadbalancer_id')
if lb_id:
if not self._resource_exists(context, models.LoadBalancer,
lb_id):
raise loadbalancerv2.EntityNotFound(
name=models.LoadBalancer.NAME, id=lb_id)
if pool_id:
if not self._resource_exists(context, models.PoolV2, pool_id):
raise loadbalancerv2.EntityNotFound(
name=models.PoolV2.NAME, id=pool_id)
pool = self._get_resource(context, models.PoolV2, pool_id)
if ((pool.protocol, listener.get('protocol'))
not in lb_const.LISTENER_POOL_COMPATIBLE_PROTOCOLS):
raise loadbalancerv2.ListenerPoolProtocolMismatch(
listener_proto=listener['protocol'],
pool_proto=pool.protocol)
if lb_id and pool_id:
pool = self._get_resource(context, models.PoolV2, pool_id)
if pool.loadbalancer_id != lb_id:
raise sharedpools.ListenerPoolLoadbalancerMismatch(
pool_id=pool_id,
lb_id=pool.loadbalancer_id)
def _validate_l7policy_data(self, context, l7policy):
if l7policy['action'] == lb_const.L7_POLICY_ACTION_REDIRECT_TO_POOL:
if not l7policy['redirect_pool_id']:
raise l7.L7PolicyRedirectPoolIdMissing()
if not self._resource_exists(
context, models.PoolV2, l7policy['redirect_pool_id']):
raise loadbalancerv2.EntityNotFound(
name=models.PoolV2.NAME, id=l7policy['redirect_pool_id'])
pool = self._get_resource(
context, models.PoolV2, l7policy['redirect_pool_id'])
listener = self._get_resource(
context, models.Listener, l7policy['listener_id'])
if pool.loadbalancer_id != listener.loadbalancer_id:
raise sharedpools.ListenerAndPoolMustBeOnSameLoadbalancer()
if (l7policy['action'] == lb_const.L7_POLICY_ACTION_REDIRECT_TO_URL
and 'redirect_url' not in l7policy):
raise l7.L7PolicyRedirectUrlMissing()
def _validate_l7rule_data(self, context, rule):
def _validate_regex(regex):
try:
re.compile(regex)
except Exception as e:
raise l7.L7RuleInvalidRegex(e=str(e))
def _validate_key(key):
p = re.compile(lb_const.HTTP_HEADER_COOKIE_NAME_REGEX)
if not p.match(key):
raise l7.L7RuleInvalidKey()
def _validate_cookie_value(value):
p = re.compile(lb_const.HTTP_COOKIE_VALUE_REGEX)
if not p.match(value):
raise l7.L7RuleInvalidCookieValue()
def _validate_non_cookie_value(value):
p = re.compile(lb_const.HTTP_HEADER_VALUE_REGEX)
q = re.compile(lb_const.HTTP_QUOTED_HEADER_VALUE_REGEX)
if not p.match(value) and not q.match(value):
raise l7.L7RuleInvalidHeaderValue()
if rule['compare_type'] == lb_const.L7_RULE_COMPARE_TYPE_REGEX:
_validate_regex(rule['value'])
if rule['type'] in [lb_const.L7_RULE_TYPE_HEADER,
lb_const.L7_RULE_TYPE_COOKIE]:
if ('key' not in rule or not rule['key']):
raise l7.L7RuleKeyMissing()
_validate_key(rule['key'])
if rule['compare_type'] != lb_const.L7_RULE_COMPARE_TYPE_REGEX:
if rule['type'] == lb_const.L7_RULE_TYPE_COOKIE:
_validate_cookie_value(rule['value'])
else:
if rule['type'] in [lb_const.L7_RULE_TYPE_HEADER,
lb_const.L7_RULE_TYPE_HOST_NAME,
lb_const.L7_RULE_TYPE_PATH]:
_validate_non_cookie_value(rule['value'])
elif (rule['compare_type'] ==
lb_const.L7_RULE_COMPARE_TYPE_EQUAL_TO):
_validate_non_cookie_value(rule['value'])
else:
raise l7.L7RuleUnsupportedCompareType(type=rule['type'])
def _convert_api_to_db(self, listener):
# NOTE(blogan): Converting the values for db models for now to
# limit the scope of this change
if 'default_tls_container_ref' in listener:
tls_cref = listener.get('default_tls_container_ref')
del listener['default_tls_container_ref']
listener['default_tls_container_id'] = tls_cref
if 'sni_container_refs' in listener:
sni_crefs = listener.get('sni_container_refs')
del listener['sni_container_refs']
listener['sni_container_ids'] = sni_crefs
def create_listener(self, context, listener):
self._convert_api_to_db(listener)
try:
with context.session.begin(subtransactions=True):
self._load_id(context, listener)
listener['provisioning_status'] = constants.PENDING_CREATE
listener['operating_status'] = lb_const.OFFLINE
# Check for unspecified loadbalancer_id and listener_id and
# set to None
for id in ['loadbalancer_id', 'default_pool_id']:
if listener.get(id) == n_const.ATTR_NOT_SPECIFIED:
listener[id] = None
self._validate_listener_data(context, listener)
sni_container_ids = []
if 'sni_container_ids' in listener:
sni_container_ids = listener.pop('sni_container_ids')
try:
listener_db_entry = models.Listener(**listener)
except Exception as exc:
raise exc
for container_id in sni_container_ids:
sni = models.SNI(listener_id=listener_db_entry.id,
tls_container_id=container_id)
listener_db_entry.sni_containers.append(sni)
context.session.add(listener_db_entry)
except exception.DBDuplicateEntry:
raise loadbalancerv2.LoadBalancerListenerProtocolPortExists(
lb_id=listener['loadbalancer_id'],
protocol_port=listener['protocol_port'])
context.session.refresh(listener_db_entry.loadbalancer)
return data_models.Listener.from_sqlalchemy_model(listener_db_entry)
def update_listener(self, context, id, listener,
tls_containers_changed=False):
self._convert_api_to_db(listener)
with context.session.begin(subtransactions=True):
listener_db = self._get_resource(context, models.Listener, id)
if not listener.get('protocol'):
# User did not intend to change the protocol so we will just
# use the same protocol already stored so the validation knows
listener['protocol'] = listener_db.protocol
self._validate_listener_data(context, listener)
if tls_containers_changed:
listener_db.sni_containers = []
for container_id in listener['sni_container_ids']:
sni = models.SNI(listener_id=id,
tls_container_id=container_id)
listener_db.sni_containers.append(sni)
listener_db.update(listener)
context.session.refresh(listener_db)
return data_models.Listener.from_sqlalchemy_model(listener_db)
def delete_listener(self, context, id):
listener_db_entry = self._get_resource(context, models.Listener, id)
with context.session.begin(subtransactions=True):
context.session.delete(listener_db_entry)
def get_listeners(self, context, filters=None):
listener_dbs = self._get_resources(context, models.Listener,
filters=filters)
return [data_models.Listener.from_sqlalchemy_model(listener_db)
for listener_db in listener_dbs]
def get_listener(self, context, id):
listener_db = self._get_resource(context, models.Listener, id)
return data_models.Listener.from_sqlalchemy_model(listener_db)
def _create_session_persistence_db(self, session_info, pool_id):
session_info['pool_id'] = pool_id
return models.SessionPersistenceV2(**session_info)
def _update_pool_session_persistence(self, context, pool_id, info):
# removing these keys as it is possible that they are passed in and
# their existence will cause issues bc they are not acceptable as
# dictionary values
info.pop('pool', None)
info.pop('pool_id', None)
pool = self._get_resource(context, models.PoolV2, pool_id)
with context.session.begin(subtransactions=True):
# Update sessionPersistence table
sess_qry = context.session.query(models.SessionPersistenceV2)
sesspersist_db = sess_qry.filter_by(pool_id=pool_id).first()
# Insert a None cookie_info if it is not present to overwrite an
# existing value in the database.
if 'cookie_name' not in info:
info['cookie_name'] = None
if sesspersist_db:
sesspersist_db.update(info)
else:
info['pool_id'] = pool_id
sesspersist_db = models.SessionPersistenceV2(**info)
context.session.add(sesspersist_db)
# Update pool table
pool.session_persistence = sesspersist_db
context.session.add(pool)
def _delete_session_persistence(self, context, pool_id):
with context.session.begin(subtransactions=True):
sess_qry = context.session.query(models.SessionPersistenceV2)
sess_qry.filter_by(pool_id=pool_id).delete()
def create_pool(self, context, pool):
with context.session.begin(subtransactions=True):
self._load_id(context, pool)
pool['provisioning_status'] = constants.PENDING_CREATE
pool['operating_status'] = lb_const.OFFLINE
session_info = pool.pop('session_persistence', None)
pool_db = models.PoolV2(**pool)
if session_info:
s_p = self._create_session_persistence_db(session_info,
pool_db.id)
pool_db.session_persistence = s_p
context.session.add(pool_db)
context.session.refresh(pool_db.loadbalancer)
return data_models.Pool.from_sqlalchemy_model(pool_db)
def update_pool(self, context, id, pool):
with context.session.begin(subtransactions=True):
pool_db = self._get_resource(context, models.PoolV2, id)
hm_id = pool.get('healthmonitor_id')
if hm_id:
if not self._resource_exists(context, models.HealthMonitorV2,
hm_id):
raise loadbalancerv2.EntityNotFound(
name=models.HealthMonitorV2.NAME,
id=hm_id)
filters = {'healthmonitor_id': [hm_id]}
hmpools = self._get_resources(context,
models.PoolV2,
filters=filters)
if hmpools:
raise loadbalancerv2.EntityInUse(
entity_using=models.PoolV2.NAME,
id=hmpools[0].id,
entity_in_use=models.HealthMonitorV2.NAME)
# Only update or delete session persistence if it was part
# of the API request.
if 'session_persistence' in pool.keys():
sp = pool.pop('session_persistence')
if sp is None or sp == {}:
self._delete_session_persistence(context, id)
else:
self._update_pool_session_persistence(context, id, sp)
# sqlalchemy cries if listeners is defined.
listeners = pool.get('listeners')
if listeners:
del pool['listeners']
pool_db.update(pool)
context.session.refresh(pool_db)
return data_models.Pool.from_sqlalchemy_model(pool_db)
def delete_pool(self, context, id):
with context.session.begin(subtransactions=True):
pool_db = self._get_resource(context, models.PoolV2, id)
for l in pool_db.listeners:
self.update_listener(context, l.id,
{'default_pool_id': None})
for l in pool_db.loadbalancer.listeners:
for p in l.l7_policies:
if (p.action == lb_const.L7_POLICY_ACTION_REDIRECT_TO_POOL
and p.redirect_pool_id == id):
self.update_l7policy(
context, p.id,
{'redirect_pool_id': None,
'action': lb_const.L7_POLICY_ACTION_REJECT})
context.session.delete(pool_db)
def get_pools(self, context, filters=None):
pool_dbs = self._get_resources(context, models.PoolV2, filters=filters)
return [data_models.Pool.from_sqlalchemy_model(pool_db)
for pool_db in pool_dbs]
def get_pool(self, context, id):
pool_db = self._get_resource(context, models.PoolV2, id)
return data_models.Pool.from_sqlalchemy_model(pool_db)
def create_pool_member(self, context, member, pool_id):
try:
with context.session.begin(subtransactions=True):
self._load_id(context, member)
member['pool_id'] = pool_id
member['provisioning_status'] = constants.PENDING_CREATE
member['operating_status'] = lb_const.OFFLINE
member_db = models.MemberV2(**member)
context.session.add(member_db)
except exception.DBDuplicateEntry:
raise loadbalancerv2.MemberExists(address=member['address'],
port=member['protocol_port'],
pool=pool_id)
context.session.refresh(member_db.pool)
return data_models.Member.from_sqlalchemy_model(member_db)
def update_pool_member(self, context, id, member):
with context.session.begin(subtransactions=True):
member_db = self._get_resource(context, models.MemberV2, id)
member_db.update(member)
context.session.refresh(member_db)
return data_models.Member.from_sqlalchemy_model(member_db)
def delete_pool_member(self, context, id):
with context.session.begin(subtransactions=True):
member_db = self._get_resource(context, models.MemberV2, id)
context.session.delete(member_db)
def get_pool_members(self, context, filters=None):
filters = filters or {}
member_dbs = self._get_resources(context, models.MemberV2,
filters=filters)
return [data_models.Member.from_sqlalchemy_model(member_db)
for member_db in member_dbs]
def get_pool_member(self, context, id):
member_db = self._get_resource(context, models.MemberV2, id)
return data_models.Member.from_sqlalchemy_model(member_db)
def delete_member(self, context, id):
with context.session.begin(subtransactions=True):
member_db = self._get_resource(context, models.MemberV2, id)
context.session.delete(member_db)
def create_healthmonitor_on_pool(self, context, pool_id, healthmonitor):
with context.session.begin(subtransactions=True):
hm_db = self.create_healthmonitor(context, healthmonitor)
pool = self.get_pool(context, pool_id)
# do not want listener, members, healthmonitor or loadbalancer
# in dict
pool_dict = pool.to_dict(listeners=False, members=False,
healthmonitor=False, loadbalancer=False,
listener=False, loadbalancer_id=False)
pool_dict['healthmonitor_id'] = hm_db.id
self.update_pool(context, pool_id, pool_dict)
hm_db = self._get_resource(context, models.HealthMonitorV2,
hm_db.id)
return data_models.HealthMonitor.from_sqlalchemy_model(hm_db)
def create_healthmonitor(self, context, healthmonitor):
with context.session.begin(subtransactions=True):
self._load_id(context, healthmonitor)
healthmonitor['provisioning_status'] = constants.PENDING_CREATE
hm_db_entry = models.HealthMonitorV2(**healthmonitor)
context.session.add(hm_db_entry)
return data_models.HealthMonitor.from_sqlalchemy_model(hm_db_entry)
def update_healthmonitor(self, context, id, healthmonitor):
with context.session.begin(subtransactions=True):
hm_db = self._get_resource(context, models.HealthMonitorV2, id)
hm_db.update(healthmonitor)
context.session.refresh(hm_db)
return data_models.HealthMonitor.from_sqlalchemy_model(hm_db)
def delete_healthmonitor(self, context, id):
with context.session.begin(subtransactions=True):
hm_db_entry = self._get_resource(context,
models.HealthMonitorV2, id)
# TODO(sbalukoff): Clear out pool.healthmonitor_ids referencing
# old healthmonitor ID.
context.session.delete(hm_db_entry)
def get_healthmonitor(self, context, id):
hm_db = self._get_resource(context, models.HealthMonitorV2, id)
return data_models.HealthMonitor.from_sqlalchemy_model(hm_db)
def get_healthmonitors(self, context, filters=None):
filters = filters or {}
hm_dbs = self._get_resources(context, models.HealthMonitorV2,
filters=filters)
return [data_models.HealthMonitor.from_sqlalchemy_model(hm_db)
for hm_db in hm_dbs]
def update_loadbalancer_stats(self, context, loadbalancer_id, stats_data):
stats_data = stats_data or {}
with context.session.begin(subtransactions=True):
lb_db = self._get_resource(context, models.LoadBalancer,
loadbalancer_id)
lb_db.stats = self._create_loadbalancer_stats(context,
loadbalancer_id,
data=stats_data)
def stats(self, context, loadbalancer_id):
loadbalancer = self._get_resource(context, models.LoadBalancer,
loadbalancer_id)
return data_models.LoadBalancerStatistics.from_sqlalchemy_model(
loadbalancer.stats)
def create_l7policy(self, context, l7policy):
if (l7policy.get('redirect_pool_id') and
l7policy['redirect_pool_id'] == n_const.ATTR_NOT_SPECIFIED):
l7policy['redirect_pool_id'] = None
if not l7policy.get('position'):
l7policy['position'] = 2147483647
self._validate_l7policy_data(context, l7policy)
with context.session.begin(subtransactions=True):
listener_id = l7policy.get('listener_id')
listener_db = self._get_resource(
context, models.Listener, listener_id)
self._load_id(context, l7policy)
l7policy['provisioning_status'] = constants.PENDING_CREATE
l7policy_db = models.L7Policy(**l7policy)
# MySQL int fields are by default 32-bit whereas handy system
# constants like sys.maxsize are 64-bit on most platforms today.
# Hence the reason this is 2147483647 (2^31 - 1) instead of an
# elsewhere-defined constant.
if l7policy['position'] == 2147483647:
listener_db.l7_policies.append(l7policy_db)
else:
listener_db.l7_policies.insert(l7policy['position'] - 1,
l7policy_db)
listener_db.l7_policies.reorder()
return data_models.L7Policy.from_sqlalchemy_model(l7policy_db)
def update_l7policy(self, context, id, l7policy):
with context.session.begin(subtransactions=True):
l7policy_db = self._get_resource(context, models.L7Policy, id)
if 'action' in l7policy:
l7policy['listener_id'] = l7policy_db.listener_id
self._validate_l7policy_data(context, l7policy)
if ('position' not in l7policy or
l7policy['position'] == 2147483647 or
l7policy_db.position == l7policy['position']):
l7policy_db.update(l7policy)
else:
listener_id = l7policy_db.listener_id
listener_db = self._get_resource(
context, models.Listener, listener_id)
l7policy_db = listener_db.l7_policies.pop(
l7policy_db.position - 1)
l7policy_db.update(l7policy)
listener_db.l7_policies.insert(l7policy['position'] - 1,
l7policy_db)
listener_db.l7_policies.reorder()
context.session.refresh(l7policy_db)
return data_models.L7Policy.from_sqlalchemy_model(l7policy_db)
def delete_l7policy(self, context, id):
with context.session.begin(subtransactions=True):
l7policy_db = self._get_resource(context, models.L7Policy, id)
listener_id = l7policy_db.listener_id
listener_db = self._get_resource(
context, models.Listener, listener_id)
listener_db.l7_policies.remove(l7policy_db)
def get_l7policy(self, context, id):
l7policy_db = self._get_resource(context, models.L7Policy, id)
return data_models.L7Policy.from_sqlalchemy_model(l7policy_db)
def get_l7policies(self, context, filters=None):
l7policy_dbs = self._get_resources(context, models.L7Policy,
filters=filters)
return [data_models.L7Policy.from_sqlalchemy_model(l7policy_db)
for l7policy_db in l7policy_dbs]
def create_l7policy_rule(self, context, rule, l7policy_id):
with context.session.begin(subtransactions=True):
if not self._resource_exists(context, models.L7Policy,
l7policy_id):
raise loadbalancerv2.EntityNotFound(
name=models.L7Policy.NAME, id=l7policy_id)
self._validate_l7rule_data(context, rule)
self._load_id(context, rule)
rule['l7policy_id'] = l7policy_id
rule['provisioning_status'] = constants.PENDING_CREATE
rule_db = models.L7Rule(**rule)
context.session.add(rule_db)
return data_models.L7Rule.from_sqlalchemy_model(rule_db)
def update_l7policy_rule(self, context, id, rule, l7policy_id):
with context.session.begin(subtransactions=True):
if not self._resource_exists(context, models.L7Policy,
l7policy_id):
raise l7.RuleNotFoundForL7Policy(
l7policy_id=l7policy_id, rule_id=id)
rule_db = self._get_resource(context, models.L7Rule, id)
# If user did not intend to change all parameters,
# already stored parameters will be used for validations
if not rule.get('type'):
rule['type'] = rule_db.type
if not rule.get('value'):
rule['value'] = rule_db.value
if not rule.get('compare_type'):
rule['compare_type'] = rule_db.compare_type
self._validate_l7rule_data(context, rule)
rule_db = self._get_resource(context, models.L7Rule, id)
rule_db.update(rule)
context.session.refresh(rule_db)
return data_models.L7Rule.from_sqlalchemy_model(rule_db)
def delete_l7policy_rule(self, context, id):
with context.session.begin(subtransactions=True):
rule_db_entry = self._get_resource(context, models.L7Rule, id)
context.session.delete(rule_db_entry)
def get_l7policy_rule(self, context, id, l7policy_id):
rule_db = self._get_resource(context, models.L7Rule, id)
if rule_db.l7policy_id != l7policy_id:
raise l7.RuleNotFoundForL7Policy(
l7policy_id=l7policy_id, rule_id=id)
return data_models.L7Rule.from_sqlalchemy_model(rule_db)
def get_l7policy_rules(self, context, l7policy_id, filters=None):
if filters:
filters.update(filters)
else:
filters = {'l7policy_id': [l7policy_id]}
rule_dbs = self._get_resources(context, models.L7Rule,
filters=filters)
return [data_models.L7Rule.from_sqlalchemy_model(rule_db)
for rule_db in rule_dbs]
def _prevent_lbaasv2_port_delete_callback(resource, event, trigger, **kwargs):
context = kwargs['context']
port_id = kwargs['port_id']
port_check = kwargs['port_check']
lbaasv2plugin = manager.NeutronManager.get_service_plugins().get(
constants.LOADBALANCERV2)
if lbaasv2plugin and port_check:
lbaasv2plugin.db.prevent_lbaasv2_port_deletion(context, port_id)
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