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
24 MON component in charge of CRUD operations for vim_accounts and alarms. It uses the message bus to communicate.
30 from osm_mon
.core
.config
import Config
31 from osm_mon
.core
.message_bus_client
import MessageBusClient
32 from osm_mon
.core
.response
import ResponseBuilder
33 from osm_mon
.server
.service
import ServerService
35 log
= logging
.getLogger(__name__
)
39 def __init__(self
, config
: Config
, loop
=None):
42 loop
= asyncio
.get_event_loop()
44 self
.msg_bus
= MessageBusClient(config
)
45 self
.service
= ServerService(config
)
46 self
.service
.populate_prometheus()
49 self
.loop
.run_until_complete(self
.start())
51 async def start(self
):
52 topics
= ["alarm_request"]
54 await self
.msg_bus
.aioread(topics
, self
._process
_msg
)
55 except Exception as e
:
56 # Failed to subscribe to kafka topic
57 log
.exception("Error when subscribing to topics %s", str(topics
))
60 async def _process_msg(self
, topic
, key
, values
):
61 log
.info("Message arrived: %s", values
)
64 if topic
== "alarm_request":
65 if key
== "create_alarm_request":
66 alarm_details
= values
["alarm_create_request"]
67 cor_id
= alarm_details
["correlation_id"]
68 response_builder
= ResponseBuilder()
70 alarm
= self
.service
.create_alarm(
71 alarm_details
["alarm_name"],
72 alarm_details
["threshold_value"],
73 alarm_details
["operation"].lower(),
74 alarm_details
["severity"].lower(),
75 alarm_details
["statistic"].lower(),
76 alarm_details
["metric_name"],
77 alarm_details
["tags"],
79 response
= response_builder
.generate_response(
80 "create_alarm_response",
86 log
.exception("Error creating alarm: ")
87 response
= response_builder
.generate_response(
88 "create_alarm_response",
93 await self
._publish
_response
(
94 "alarm_response_" + str(cor_id
),
95 "create_alarm_response",
99 if key
== "delete_alarm_request":
100 alarm_details
= values
["alarm_delete_request"]
101 alarm_uuid
= alarm_details
["alarm_uuid"]
102 response_builder
= ResponseBuilder()
103 cor_id
= alarm_details
["correlation_id"]
105 self
.service
.delete_alarm(alarm_uuid
)
106 response
= response_builder
.generate_response(
107 "delete_alarm_response",
113 log
.exception("Error deleting alarm: ")
114 response
= response_builder
.generate_response(
115 "delete_alarm_response",
120 await self
._publish
_response
(
121 "alarm_response_" + str(cor_id
),
122 "delete_alarm_response",
127 log
.exception("Exception processing message: ")
129 async def _publish_response(self
, topic
: str, key
: str, msg
: dict):
131 "Sending response %s to topic %s with key %s", json
.dumps(msg
), topic
, key
133 await self
.msg_bus
.aiowrite(topic
, key
, msg
)