/
loadbalancer_db.py
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/
loadbalancer_db.py
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#
# Copyright (c) 2014 Juniper Networks, Inc. All rights reserved.
#
import requests
import time
import uuid
try:
from neutron.common.config import cfg
except ImportError:
try:
from oslo.config import cfg
except ImportError:
from oslo_config import cfg
from cfgm_common import analytics_client
from cfgm_common import exceptions as vnc_exc
from neutron.common import exceptions as n_exc
try:
from neutron.extensions import loadbalancer
except ImportError:
from neutron_lbaas.extensions import loadbalancer
try:
from neutron.extensions.loadbalancer import LoadBalancerPluginBase
except ImportError:
from neutron_lbaas.extensions.loadbalancer import LoadBalancerPluginBase
from vnc_api.vnc_api import VncApi
import loadbalancer_healthmonitor
import loadbalancer_member
import loadbalancer_pool
import virtual_ip
class LoadBalancerPluginDb(LoadBalancerPluginBase):
def __init__(self):
self.admin_user = cfg.CONF.keystone_authtoken.admin_user
self.admin_password = cfg.CONF.keystone_authtoken.admin_password
self.admin_tenant_name = cfg.CONF.keystone_authtoken.admin_tenant_name
self.api_srvr_ip = cfg.CONF.APISERVER.api_server_ip
self.api_srvr_port = cfg.CONF.APISERVER.api_server_port
self.api_srvr_use_ssl= cfg.CONF.APISERVER.use_ssl
try:
self.auth_host = cfg.CONF.keystone_authtoken.auth_host
except cfg.NoSuchOptError:
self.auth_host = "127.0.0.1"
try:
self.auth_protocol = cfg.CONF.keystone_authtoken.auth_protocol
except cfg.NoSuchOptError:
self.auth_protocol = "http"
try:
self.auth_port = cfg.CONF.keystone_authtoken.auth_port
except cfg.NoSuchOptError:
self.auth_port = "35357"
try:
self.auth_url = cfg.CONF.keystone_authtoken.auth_url
except cfg.NoSuchOptError:
self.auth_url = "/v2.0/tokens"
try:
self.auth_type = cfg.CONF.keystone_authtoken.auth_type
except cfg.NoSuchOptError:
self.auth_type = "keystone"
try:
self.api_server_url = cfg.CONF.APISERVER.api_server_url
except cfg.NoSuchOptError:
self.api_server_url = "/"
@property
def api(self):
if hasattr(self, '_api'):
return self._api
# Retry till a api-server is up
connected = False
while not connected:
try:
self._api = VncApi(self.admin_user, self.admin_password,
self.admin_tenant_name, self.api_srvr_ip,
self.api_srvr_port, self.api_server_url,
auth_host=self.auth_host, auth_port=self.auth_port,
auth_protocol=self.auth_protocol,
auth_url=self.auth_url, auth_type=self.auth_type,
wait_for_connect=True,
api_server_use_ssl=self.api_srvr_use_ssl)
connected = True
except requests.exceptions.RequestException:
time.sleep(3)
return self._api
@property
def pool_manager(self):
if hasattr(self, '_pool_manager'):
return self._pool_manager
self._pool_manager = \
loadbalancer_pool.LoadbalancerPoolManager(self.api)
return self._pool_manager
@property
def vip_manager(self):
if hasattr(self, '_vip_manager'):
return self._vip_manager
self._vip_manager = virtual_ip.VirtualIpManager(self.api)
return self._vip_manager
@property
def member_manager(self):
if hasattr(self, '_member_manager'):
return self._member_manager
self._member_manager = \
loadbalancer_member.LoadbalancerMemberManager(self.api)
return self._member_manager
@property
def monitor_manager(self):
if hasattr(self, '_monitor_manager'):
return self._monitor_manager
self._monitor_manager = \
loadbalancer_healthmonitor.LoadbalancerHealthmonitorManager(
self.api)
return self._monitor_manager
def get_api_client(self):
return self.api
def get_vips(self, context, filters=None, fields=None):
return self.vip_manager.get_collection(context, filters, fields)
def get_vip(self, context, id, fields=None):
return self.vip_manager.get_resource(context, id, fields)
def create_vip(self, context, vip):
try:
return self.vip_manager.create(context, vip)
except vnc_exc.PermissionDenied as ex:
raise n_exc.BadRequest(resource='vip', msg=str(ex))
def update_vip(self, context, id, vip):
return self.vip_manager.update(context, id, vip)
def delete_vip(self, context, id):
return self.vip_manager.delete(context, id)
def get_pools(self, context, filters=None, fields=None):
return self.pool_manager.get_collection(context, filters, fields)
def get_pool(self, context, id, fields=None):
return self.pool_manager.get_resource(context, id, fields)
def create_pool(self, context, pool):
try:
return self.pool_manager.create(context, pool)
except vnc_exc.PermissionDenied as ex:
raise n_exc.BadRequest(resource='pool', msg=str(ex))
def update_pool(self, context, id, pool):
return self.pool_manager.update(context, id, pool)
def delete_pool(self, context, id):
return self.pool_manager.delete(context, id)
def stats(self, context, pool_id):
stats = {
'bytes_in': '0',
'bytes_out': '0',
'active_connections': '0',
'total_connections': '0',
}
endpoint = "http://%s:%s" % (cfg.CONF.COLLECTOR.analytics_api_ip,
cfg.CONF.COLLECTOR.analytics_api_port)
analytics = analytics_client.Client(endpoint)
path = "/analytics/uves/service-instance/"
fqdn_uuid = "%s?cfilt=UveLoadbalancer" % pool_id
try:
lb_stats = analytics.request(path, fqdn_uuid)
pool_stats = lb_stats['UveLoadbalancer']['pool_stats']
except Exception:
pool_stats = []
for pool_stat in pool_stats:
stats['bytes_in'] = str(int(stats['bytes_in']) + int(pool_stat['bytes_in']))
stats['bytes_out'] = str(int(stats['bytes_out']) + int(pool_stat['bytes_out']))
stats['active_connections'] = str(int(stats['active_connections']) + int(pool_stat['current_sessions']))
stats['total_connections'] = str(int(stats['total_connections']) + int(pool_stat['total_sessions']))
return {'stats': stats}
def create_pool_health_monitor(self, context, health_monitor, pool_id):
""" Associate an health monitor with a pool.
"""
m = health_monitor['health_monitor']
try:
pool = self.api.loadbalancer_pool_read(id=pool_id)
except vnc_exc.NoIdError:
raise loadbalancer.PoolNotFound(pool_id=pool_id)
try:
monitor = self.api.loadbalancer_healthmonitor_read(id=m['id'])
except vnc_exc.NoIdError:
raise loadbalancer.HealthMonitorNotFound(monitor_id=m['id'])
if not context.is_admin:
tenant_id = str(uuid.UUID(context.tenant_id))
if tenant_id != pool.parent_uuid or \
tenant_id != monitor.parent_uuid:
raise n_exc.NotAuthorized()
pool_refs = monitor.get_loadbalancer_pool_back_refs()
if pool_refs is not None:
for ref in pool_refs:
if ref['uuid'] == pool_id:
raise loadbalancer.PoolMonitorAssociationExists(
monitor_id=m['id'], pool_id=pool_id)
pool.add_loadbalancer_healthmonitor(monitor)
self.api.loadbalancer_pool_update(pool)
res = {
'id': monitor.uuid,
'tenant_id': monitor.parent_uuid.replace('-', '')
}
return res
def get_pool_health_monitor(self, context, id, pool_id, fields=None):
""" Query a specific pool, health_monitor association.
"""
try:
pool = self.api.loadbalancer_pool_read(id=pool_id)
except vnc_exc.NoIdError:
raise loadbalancer.PoolNotFound(pool_id=id)
tenant_id = str(uuid.UUID(context.tenant_id))
if not context.is_admin and tenant_id != pool.parent_uuid:
raise loadbalancer.PoolNotFound(pool_id=id)
in_list = False
for mref in pool.get_loadbalancer_healthmonitor_refs() or []:
if mref['uuid'] == id:
in_list = True
break
if not in_list:
raise loadbalancer.PoolMonitorAssociationNotFound(
monitor_id=id, pool_id=pool_id)
res = {
'pool_id': pool_id,
'monitor_id': id,
'status': self.pool_manager._get_object_status(pool),
'tenant_id': pool.parent_uuid.replace('-', '')
}
return self.pool_manager._fields(res, fields)
def delete_pool_health_monitor(self, context, id, pool_id):
try:
pool = self.api.loadbalancer_pool_read(id=pool_id)
except vnc_exc.NoIdError:
raise loadbalancer.PoolNotFound(pool_id=id)
tenant_id = str(uuid.UUID(context.tenant_id))
if not context.is_admin and tenant_id != pool.parent_uuid:
raise loadbalancer.PoolNotFound(pool_id=id)
try:
monitor = self.api.loadbalancer_healthmonitor_read(id=id)
except vnc_exc.NoIdError:
raise loadbalancer.HealthMonitorNotFound(monitor_id=id)
in_list = False
for mref in pool.get_loadbalancer_healthmonitor_refs():
if mref['uuid'] == id:
in_list = True
break
if not in_list:
raise loadbalancer.PoolMonitorAssociationNotFound(
monitor_id=id, pool_id=pool_id)
pool.del_loadbalancer_healthmonitor(monitor)
self.api.loadbalancer_pool_update(pool)
def get_members(self, context, filters=None, fields=None):
return self.member_manager.get_collection(context, filters, fields)
def get_member(self, context, id, fields=None):
return self.member_manager.get_resource(context, id, fields)
def create_member(self, context, member):
try:
return self.member_manager.create(context, member)
except vnc_exc.PermissionDenied as ex:
raise n_exc.BadRequest(resource='member', msg=str(ex))
def update_member(self, context, id, member):
return self.member_manager.update(context, id, member)
def delete_member(self, context, id):
return self.member_manager.delete(context, id)
def get_health_monitors(self, context, filters=None, fields=None):
return self.monitor_manager.get_collection(context, filters, fields)
def get_health_monitor(self, context, id, fields=None):
return self.monitor_manager.get_resource(context, id, fields)
def create_health_monitor(self, context, health_monitor):
try:
return self.monitor_manager.create(context, health_monitor)
except vnc_exc.PermissionDenied as ex:
raise n_exc.BadRequest(resource='health_monitor', msg=str(ex))
def update_health_monitor(self, context, id, health_monitor):
return self.monitor_manager.update(context, id, health_monitor)
def delete_health_monitor(self, context, id):
return self.monitor_manager.delete(context, id)