/
loadbalancer_pool.py
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/
loadbalancer_pool.py
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#
# Copyright (c) 2014 Juniper Networks, Inc. All rights reserved.
#
import uuid
from neutron_lbaas.extensions import loadbalancerv2
from neutron.api.v2 import attributes as attr
from neutron.plugins.common import constants
from neutron.services import provider_configuration as pconf
try:
from neutron.openstack.common import uuidutils
except ImportError:
from oslo_utils import uuidutils
from vnc_api.vnc_api import *
from .. resource_manager import ResourceManager
from .. resource_manager import LoadbalancerMethodInvalid
import uuid
class LoadbalancerPoolManager(ResourceManager):
_loadbalancer_pool_type_mapping = {
'admin_state': 'admin_state_up',
'protocol': 'protocol',
'loadbalancer_method': 'lb_algorithm',
'subnet_id': 'subnet_id'
}
@property
def property_type_mapping(self):
return self._loadbalancer_pool_type_mapping
def make_properties(self, pool):
props = LoadbalancerPoolType()
for key, mapping in self._loadbalancer_pool_type_mapping.iteritems():
if mapping in pool:
setattr(props, key, pool[mapping])
sp = pool['session_persistence']
if sp is not None:
if 'type' in sp:
props.session_persistence = sp['type']
if 'cookie_name' in sp:
props.persistence_cookie_name = sp['cookie_name']
return props
def _get_listeners(self, pool):
ll_list = []
ll_back_refs = pool.get_loadbalancer_listener_refs()
if ll_back_refs:
for ll_back_ref in ll_back_refs:
ll_list.append(ll_back_ref['uuid'])
return ll_list
def make_dict(self, pool, fields=None):
res = {
'id': pool.uuid,
'tenant_id': pool.parent_uuid.replace('-', ''),
'name': pool.display_name,
'description': self._get_object_description(pool),
'status': self._get_object_status(pool),
'listeners': self._get_listeners(pool),
'session_persistence': None,
}
props = pool.get_loadbalancer_pool_properties()
for key, mapping in self._loadbalancer_pool_type_mapping.iteritems():
value = getattr(props, key, None)
if value is not None:
res[mapping] = value
if props.session_persistence:
sp = {'type': props.session_persistence}
if props.session_persistence == 'APP_COOKIE':
sp['cookie_name'] = props.persistence_cookie_name
res['session_persistence'] = sp
res['provider'] = pool.get_loadbalancer_pool_provider()
# members
res['members'] = []
members = pool.get_loadbalancer_members()
if members is not None:
res['members'] = [{'id': member['uuid']} for member in members]
# health_monitor
hm_refs = pool.get_loadbalancer_healthmonitor_refs()
if hm_refs is not None:
res['healthmonitor_id'] = hm_refs[0]['uuid']
return self._fields(res, fields)
def resource_read(self, id):
return self._api.loadbalancer_pool_read(id=id)
def resource_list(self, tenant_id=None):
if tenant_id:
parent_id = str(uuid.UUID(tenant_id))
else:
parent_id = None
return self._api.loadbalancer_pools_list(parent_id=parent_id)
def resource_update(self, obj):
try:
return self._api.loadbalancer_pool_update(obj)
except HttpError as e:
if 'LoadbalancerMethodType' in e.content:
pool_props = obj.get_loadbalancer_pool_properties()
lb_method = pool_props.get_loadbalancer_method()
raise LoadbalancerMethodInvalid(lb_method=lb_method,
pool_id=obj.uuid)
def resource_delete(self, id):
return self._api.loadbalancer_pool_delete(id=id)
def get_exception_notfound(self, id=None):
return loadbalancer.PoolNotFound(pool_id=id)
def get_exception_inuse(self, id=None):
return loadbalancer.PoolInUse(pool_id=id)
@property
def neutron_name(self):
return "pool"
@property
def resource_name_plural(self):
return "loadbalancer-pools"
def create(self, context, pool):
"""
Create a loadbalancer_pool object.
"""
p = pool['pool']
try:
sas_fq_name = ["default-global-system-config"]
sas_fq_name.append(p['provider'])
sas_obj = self._api.service_appliance_set_read(fq_name=sas_fq_name)
except NoIdError:
raise pconf.ServiceProviderNotFound(
provider=p['provider'], service_type=constants.LOADBALANCER)
tenant_id = self._get_tenant_id_for_create(context, p)
project = self._project_read(project_id=tenant_id)
if p['listener_id']:
try:
ll = self._api.loadbalancer_listener_read(id=p['listener_id'])
except NoIdError:
raise loadbalancer.EntityNotFound(id=p['listener_id'])
project_id = ll.parent_uuid
if str(uuid.UUID(tenant_id)) != project_id:
raise n_exc.NotAuthorized()
else:
ll = None
pool_uuid = uuidutils.generate_uuid()
name = self._get_resource_name('loadbalancer-pool', project,
p['name'], pool_uuid)
props = self.make_properties(p)
id_perms = IdPermsType(enable=True,
description=p['description'])
pool = LoadbalancerPool(name, project,
loadbalancer_pool_properties=props,
loadbalancer_pool_provider=p['provider'],
id_perms=id_perms, display_name=p['name'])
pool.uuid = pool_uuid
pool.set_service_appliance_set(sas_obj)
if ll:
pool.set_loadbalancer_listener(ll)
self._api.loadbalancer_pool_create(pool)
return self.make_dict(pool)
def _update_pool_properties(self, props, pool):
change = self.update_properties_subr(props, pool)
if 'session_persistence' in pool:
sp = pool['session_persistence']
new_type = sp.get('type', None)
if props.session_persistence != new_type:
props.session_persistence = new_type
change = True
new_cookie_name = sp.get('cookie_name', None)
if props.persistence_cookie_name != new_cookie_name and \
props.session_persistence == 'APP_COOKIE':
props.persistence_cookie_name = new_cookie_name
change = True
return change
def update_properties(self, pool_db, id, p):
props = pool_db.get_loadbalancer_pool_properties()
change = False
if self._update_pool_properties(props, p):
pool_db.set_loadbalancer_pool_properties(props)
change = True
return change