--- /dev/null
+# -*- coding: utf-8 -*-
+
+# Copyright 2018 Whitestack, LLC
+# *************************************************************
+
+# This file is part of OSM Monitoring module
+# All Rights Reserved to Whitestack, LLC
+
+# 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.
+# For those usages not covered by the Apache License, Version 2.0 please
+# contact: bdiaz@whitestack.com or glavado@whitestack.com
+##
+import logging
+import multiprocessing
+from enum import Enum
+from typing import Tuple, List
+
+from osm_common.dbbase import DbException
+
+from osm_mon.core import database
+from osm_mon.core.common_db import CommonDbClient
+from osm_mon.core.config import Config
+from osm_mon.core.database import Alarm, AlarmRepository
+from osm_mon.evaluator.backends.prometheus import PrometheusBackend
+
+log = logging.getLogger(__name__)
+
+BACKENDS = {
+ 'prometheus': PrometheusBackend
+}
+
+
+class AlarmStatus(Enum):
+ ALARM = 'alarm'
+ OK = 'ok'
+ INSUFFICIENT = 'insufficient-data'
+
+
+class EvaluatorService:
+
+ def __init__(self, config: Config):
+ self.conf = config
+ self.common_db = CommonDbClient(self.conf)
+ self.queue = multiprocessing.Queue()
+
+ def _get_metric_value(self,
+ nsr_id: str,
+ vnf_member_index: int,
+ vdur_name: str,
+ metric_name: str):
+ return BACKENDS[self.conf.get('evaluator', 'backend')]().get_metric_value(metric_name, nsr_id, vdur_name,
+ vnf_member_index)
+
+ def _evaluate_metric(self,
+ nsr_id: str,
+ vnf_member_index: int,
+ vdur_name: str,
+ metric_name: str,
+ alarm: Alarm):
+ log.debug("_evaluate_metric")
+ metric_value = self._get_metric_value(nsr_id, vnf_member_index, vdur_name, metric_name)
+ if not metric_value:
+ log.warning("No metric result for alarm %s", alarm.id)
+ self.queue.put((alarm, AlarmStatus.INSUFFICIENT))
+ else:
+ if alarm.operation.upper() == 'GT':
+ if metric_value > alarm.threshold:
+ self.queue.put((alarm, AlarmStatus.ALARM))
+ else:
+ self.queue.put((alarm, AlarmStatus.OK))
+ elif alarm.operation.upper() == 'LT':
+ if metric_value < alarm.threshold:
+ self.queue.put((alarm, AlarmStatus.ALARM))
+ else:
+ self.queue.put((alarm, AlarmStatus.OK))
+
+ def evaluate_alarms(self) -> List[Tuple[Alarm, AlarmStatus]]:
+ log.debug('evaluate_alarms')
+ processes = []
+ database.db.connect()
+ try:
+ with database.db.atomic():
+ for alarm in AlarmRepository.list():
+ try:
+ vnfr = self.common_db.get_vnfr(alarm.nsr_id, alarm.vnf_member_index)
+ except DbException:
+ log.exception("Error getting vnfr: ")
+ continue
+ vnfd = self.common_db.get_vnfd(vnfr['vnfd-id'])
+ try:
+ vdur = next(filter(lambda vdur: vdur['name'] == alarm.vdur_name, vnfr['vdur']))
+ except StopIteration:
+ log.warning("No vdur found with name %s for alarm %s", alarm.vdur_name, alarm.id)
+ continue
+ vdu = next(filter(lambda vdu: vdu['id'] == vdur['vdu-id-ref'], vnfd['vdu']))
+ vnf_monitoring_param = next(
+ filter(lambda param: param['id'] == alarm.monitoring_param, vnfd['monitoring-param']))
+ nsr_id = vnfr['nsr-id-ref']
+ vnf_member_index = vnfr['member-vnf-index-ref']
+ vdur_name = vdur['name']
+ if 'vdu-monitoring-param' in vnf_monitoring_param:
+ vdu_monitoring_param = next(filter(
+ lambda param: param['id'] == vnf_monitoring_param['vdu-monitoring-param'][
+ 'vdu-monitoring-param-ref'], vdu['monitoring-param']))
+ nfvi_metric = vdu_monitoring_param['nfvi-metric']
+
+ p = multiprocessing.Process(target=self._evaluate_metric,
+ args=(nsr_id,
+ vnf_member_index,
+ vdur_name,
+ nfvi_metric,
+ alarm))
+ processes.append(p)
+ p.start()
+ if 'vdu-metric' in vnf_monitoring_param:
+ vnf_metric_name = vnf_monitoring_param['vdu-metric']['vdu-metric-name-ref']
+ p = multiprocessing.Process(target=self._evaluate_metric,
+ args=(nsr_id,
+ vnf_member_index,
+ vdur_name,
+ vnf_metric_name,
+ alarm))
+ processes.append(p)
+ p.start()
+ if 'vnf-metric' in vnf_monitoring_param:
+ vnf_metric_name = vnf_monitoring_param['vnf-metric']['vnf-metric-name-ref']
+ p = multiprocessing.Process(target=self._evaluate_metric,
+ args=(nsr_id,
+ vnf_member_index,
+ '',
+ vnf_metric_name,
+ alarm))
+ processes.append(p)
+ p.start()
+
+ for process in processes:
+ process.join(timeout=10)
+ alarms_tuples = []
+ while not self.queue.empty():
+ alarms_tuples.append(self.queue.get())
+ return alarms_tuples
+ finally:
+ database.db.close()
projects / osm / MON.git / blobdiff