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# -*- coding: utf-8 -*- |
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# pylint: disable=no-member |
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# Copyright 2018 Whitestack, LLC |
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# ************************************************************* |
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# This file is part of OSM Monitoring module |
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# All Rights Reserved to Whitestack, LLC |
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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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# http://www.apache.org/licenses/LICENSE-2.0 |
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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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# For those usages not covered by the Apache License, Version 2.0 please |
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# contact: bdiaz@whitestack.com or glavado@whitestack.com |
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## |
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import asyncio |
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import json |
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import logging |
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import requests |
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from requests.exceptions import ConnectionError, RequestException |
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from osm_policy_module.common.common_db_client import CommonDbClient |
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from osm_policy_module.common.lcm_client import LcmClient |
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from osm_policy_module.common.mon_client import MonClient |
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from osm_policy_module.core import database |
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from osm_policy_module.core.config import Config |
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from osm_policy_module.core.database import VnfAlarm, VnfAlarmRepository, AlarmActionRepository |
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from osm_policy_module.core.exceptions import VdurNotFound |
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log = logging.getLogger(__name__) |
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class AlarmingService: |
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def __init__(self, config: Config, loop=None): |
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self.conf = config |
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if not loop: |
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loop = asyncio.get_event_loop() |
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self.loop = loop |
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self.db_client = CommonDbClient(config) |
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self.mon_client = MonClient(config, loop=self.loop) |
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self.lcm_client = LcmClient(config, loop=self.loop) |
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async def configure_vnf_alarms(self, nsr_id: str): |
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log.info("Configuring vnf alarms for network service %s", nsr_id) |
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alarms_created = [] |
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database.db.connect() |
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try: |
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with database.db.atomic(): |
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vnfrs = self.db_client.get_vnfrs(nsr_id) |
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for vnfr in vnfrs: |
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log.debug("Processing vnfr: %s", vnfr) |
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vnfd = self.db_client.get_vnfd(vnfr['vnfd-id']) |
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for vdur in vnfr['vdur']: |
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vdu = next( |
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filter( |
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lambda vdu: vdu['id'] == vdur['vdu-id-ref'], |
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vnfd['vdu'] |
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) |
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) |
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if 'alarm' in vdu: |
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alarm_descriptors = vdu['alarm'] |
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for alarm_descriptor in alarm_descriptors: |
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try: |
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VnfAlarmRepository.get( |
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VnfAlarm.alarm_id == alarm_descriptor['alarm-id'], |
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VnfAlarm.vnf_member_index == vnfr['member-vnf-index-ref'], |
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VnfAlarm.vdu_name == vdur['name'], |
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VnfAlarm.nsr_id == nsr_id |
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) |
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log.debug("vdu %s already has an alarm configured with same id %s", vdur['name'], |
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alarm_descriptor['alarm-id']) |
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continue |
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except VnfAlarm.DoesNotExist: |
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pass |
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vnf_monitoring_param = next( |
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filter( |
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lambda param: param['id'] == alarm_descriptor['vnf-monitoring-param-ref'], |
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vdu.get('monitoring-parameter', []) |
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), |
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{} |
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) |
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metric_name = self._get_metric_name(vnf_monitoring_param) |
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alarm_uuid = await self.mon_client.create_alarm( |
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metric_name=metric_name, |
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ns_id=nsr_id, |
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vdu_name=vdur['name'], |
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vnf_member_index=vnfr['member-vnf-index-ref'], |
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threshold=alarm_descriptor['value'], |
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operation=alarm_descriptor['operation'] |
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) |
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alarm = VnfAlarmRepository.create( |
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alarm_id=alarm_descriptor['alarm-id'], |
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alarm_uuid=alarm_uuid, |
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nsr_id=nsr_id, |
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vnf_member_index=vnfr['member-vnf-index-ref'], |
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vdu_name=vdur['name'] |
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) |
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for action_type in ['ok', 'insufficient-data', 'alarm']: |
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if 'actions' in alarm_descriptor and action_type in alarm_descriptor['actions']: |
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for url in alarm_descriptor['actions'][action_type]: |
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AlarmActionRepository.create( |
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type=action_type, |
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url=url['url'], |
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alarm=alarm |
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) |
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alarms_created.append(alarm) |
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except Exception as e: |
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log.exception("Error configuring VNF alarms:") |
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if len(alarms_created) > 0: |
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log.debug("Cleaning alarm resources in MON") |
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for alarm in alarms_created: |
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try: |
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await self.mon_client.delete_alarm(alarm.nsr_id, |
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alarm.vnf_member_index, |
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alarm.vdu_name, |
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alarm.alarm_uuid) |
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except ValueError: |
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log.exception("Error deleting alarm in MON %s", alarm.alarm_uuid) |
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raise e |
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finally: |
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database.db.close() |
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async def delete_orphaned_alarms(self, nsr_id): |
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# TODO: Review as it seems this code is never called |
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log.info("Deleting orphaned vnf alarms for network service %s", nsr_id) |
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database.db.connect() |
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try: |
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with database.db.atomic(): |
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for alarm in VnfAlarmRepository.list(VnfAlarm.nsr_id == nsr_id): |
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try: |
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self.db_client.get_vdur(nsr_id, alarm.vnf_member_index, alarm.vdu_name) |
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except VdurNotFound: |
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log.debug("Deleting orphaned alarm %s", alarm.alarm_uuid) |
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try: |
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await self.mon_client.delete_alarm( |
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alarm.nsr_id, |
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alarm.vnf_member_index, |
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alarm.vdu_name, |
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alarm.alarm_uuid) |
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except ValueError: |
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log.exception("Error deleting alarm in MON %s", alarm.alarm_uuid) |
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alarm.delete_instance() |
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except Exception as e: |
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log.exception("Error deleting orphaned alarms:") |
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raise e |
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finally: |
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database.db.close() |
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async def delete_vnf_alarms(self, nsr_id): |
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log.info("Deleting vnf alarms for network service %s", nsr_id) |
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database.db.connect() |
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try: |
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with database.db.atomic(): |
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for alarm in VnfAlarmRepository.list(VnfAlarm.nsr_id == nsr_id): |
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log.debug("Deleting vnf alarm %s", alarm.alarm_uuid) |
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try: |
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await self.mon_client.delete_alarm( |
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alarm.nsr_id, |
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alarm.vnf_member_index, |
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alarm.vdu_name, |
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alarm.alarm_uuid) |
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except ValueError: |
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log.exception("Error deleting alarm in MON %s", alarm.alarm_uuid) |
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alarm.delete_instance() |
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except Exception as e: |
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log.exception("Error deleting vnf alarms:") |
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raise e |
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finally: |
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database.db.close() |
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async def handle_alarm(self, alarm_uuid: str, status: str, payload: dict): |
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database.db.connect() |
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try: |
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with database.db.atomic(): |
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alarm = VnfAlarmRepository.get(VnfAlarm.alarm_uuid == alarm_uuid) |
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log.debug("Handling vnf alarm %s with status %s", alarm.alarm_id, status) |
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for action in alarm.actions: |
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if action.type == status: |
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log.info("Executing request to url %s for vnf alarm %s with status %s", action.url, |
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alarm.alarm_id, status) |
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try: |
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requests.post(url=action.url, json=json.dumps(payload), timeout=10) |
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except RequestException as e: |
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log.info("Error connecting to url %s", action.url) |
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log.debug("RequestException %s", e) |
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except ConnectionError: |
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log.exception("Error connecting to url %s", action.url) |
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except VnfAlarm.DoesNotExist: |
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log.debug("There is no alarming action configured for alarm %s.", alarm_uuid) |
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finally: |
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database.db.close() |
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def _get_metric_name(self, vnf_monitoring_param: dict): |
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if 'performance-metric' in vnf_monitoring_param: |
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return vnf_monitoring_param['performance-metric'] |
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raise ValueError('No metric name found for vnf_monitoring_param %s' % vnf_monitoring_param['id']) |
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