1 # -*- coding: utf-8 -*-
3 # Copyright 2018 Whitestack, LLC
4 # *************************************************************
6 # This file is part of OSM Monitoring module
7 # All Rights Reserved to Whitestack, LLC
9 # Licensed under the Apache License, Version 2.0 (the "License"); you may
10 # not use this file except in compliance with the License. You may obtain
11 # a copy of the License at
13 # http://www.apache.org/licenses/LICENSE-2.0
15 # Unless required by applicable law or agreed to in writing, software
16 # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
17 # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
18 # License for the specific language governing permissions and limitations
20 # For those usages not covered by the Apache License, Version 2.0 please
21 # contact: bdiaz@whitestack.com or glavado@whitestack.com
25 import multiprocessing
28 from osm_mon
.core
.config
import Config
29 from osm_mon
.core
.message_bus_client
import MessageBusClient
30 from osm_mon
.core
.models
import Alarm
31 from osm_mon
.core
.response
import ResponseBuilder
32 from osm_mon
.evaluator
.service
import EvaluatorService
, AlarmStatus
34 log
= logging
.getLogger(__name__
)
39 def __init__(self
, config
: Config
, loop
=None):
42 loop
= asyncio
.get_event_loop()
44 self
.service
= EvaluatorService(config
)
45 self
.msg_bus
= MessageBusClient(config
)
47 def evaluate_forever(self
):
48 log
.debug('evaluate_forever')
52 time
.sleep(int(self
.conf
.get('evaluator', 'interval')))
54 log
.exception("Error evaluating alarms")
58 log
.info('Starting alarm evaluation')
59 alarms_tuples
= self
.service
.evaluate_alarms()
61 for alarm
, status
in alarms_tuples
:
62 p
= multiprocessing
.Process(target
=self
.notify_alarm
,
66 for process
in processes
:
67 process
.join(timeout
=10)
68 log
.info('Alarm evaluation is complete')
70 def notify_alarm(self
, alarm
: Alarm
, status
: AlarmStatus
):
71 log
.debug("_notify_alarm")
72 resp_message
= self
._build
_alarm
_response
(alarm
, status
)
73 log
.info("Sent alarm notification: %s", resp_message
)
74 self
.loop
.run_until_complete(self
.msg_bus
.aiowrite('alarm_response', 'notify_alarm', resp_message
))
76 def _build_alarm_response(self
, alarm
: Alarm
, status
: AlarmStatus
):
77 log
.debug("_build_alarm_response")
78 response
= ResponseBuilder()
80 for name
, value
in alarm
.tags
.items():
82 now
= time
.strftime("%d-%m-%Y") + " " + time
.strftime("%X")
83 return response
.generate_response(
86 metric_name
=alarm
.metric
,
87 operation
=alarm
.operation
,
88 threshold_value
=alarm
.threshold
,