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
21 # For those usages not covered by the Apache License, Version 2.0 please
22 # contact: bdiaz@whitestack.com or glavado@whitestack.com
28 from json
import JSONDecodeError
31 from aiokafka
import AIOKafkaProducer
, AIOKafkaConsumer
33 from osm_policy_module
.core
.config
import Config
35 log
= logging
.getLogger(__name__
)
39 def __init__(self
, config
: Config
, loop
=None):
40 self
.kafka_server
= '{}:{}'.format(config
.get('message', 'host'),
41 config
.get('message', 'port'))
43 loop
= asyncio
.get_event_loop()
46 async def create_alarm(self
, metric_name
: str, ns_id
: str, vdu_name
: str, vnf_member_index
: str, threshold
: int,
47 operation
: str, statistic
: str = 'AVERAGE'):
48 cor_id
= random
.randint(1, 10e7
)
49 msg
= self
._build
_create
_alarm
_payload
(cor_id
,
57 log
.debug("Sending create_alarm_request %s", msg
)
58 producer
= AIOKafkaProducer(loop
=self
.loop
,
59 bootstrap_servers
=self
.kafka_server
,
60 key_serializer
=str.encode
,
61 value_serializer
=str.encode
)
62 await producer
.start()
64 await producer
.send_and_wait("alarm_request", key
="create_alarm_request", value
=json
.dumps(msg
))
67 log
.debug("Waiting for create_alarm_response...")
68 consumer
= AIOKafkaConsumer(
69 "alarm_response_" + str(cor_id
),
71 bootstrap_servers
=self
.kafka_server
,
72 key_deserializer
=bytes
.decode
,
73 value_deserializer
=bytes
.decode
,
74 auto_offset_reset
='earliest')
75 await consumer
.start()
78 async for message
in consumer
:
80 content
= json
.loads(message
.value
)
81 except JSONDecodeError
:
82 content
= yaml
.safe_load(message
.value
)
83 log
.debug("Received create_alarm_response %s", content
)
84 if content
['alarm_create_response']['correlation_id'] == cor_id
:
85 if not content
['alarm_create_response']['status']:
86 raise ValueError("Error creating alarm in MON")
87 alarm_uuid
= content
['alarm_create_response']['alarm_uuid']
92 raise ValueError('No alarm deletion response from MON. Is MON up?')
95 async def delete_alarm(self
, ns_id
: str, vnf_member_index
: str, vdu_name
: str, alarm_uuid
: str):
96 cor_id
= random
.randint(1, 10e7
)
97 msg
= self
._build
_delete
_alarm
_payload
(cor_id
, ns_id
, vdu_name
, vnf_member_index
, alarm_uuid
)
98 log
.debug("Sending delete_alarm_request %s", msg
)
99 producer
= AIOKafkaProducer(loop
=self
.loop
,
100 bootstrap_servers
=self
.kafka_server
,
101 key_serializer
=str.encode
,
102 value_serializer
=str.encode
)
103 await producer
.start()
105 await producer
.send_and_wait("alarm_request", key
="delete_alarm_request", value
=json
.dumps(msg
))
107 await producer
.stop()
108 log
.debug("Waiting for delete_alarm_response...")
109 consumer
= AIOKafkaConsumer(
110 "alarm_response_" + str(cor_id
),
112 bootstrap_servers
=self
.kafka_server
,
113 key_deserializer
=bytes
.decode
,
114 value_deserializer
=bytes
.decode
,
115 auto_offset_reset
='earliest')
116 await consumer
.start()
119 async for message
in consumer
:
121 content
= json
.loads(message
.value
)
122 except JSONDecodeError
:
123 content
= yaml
.safe_load(message
.value
)
124 if content
['alarm_delete_response']['correlation_id'] == cor_id
:
125 log
.debug("Received delete_alarm_response %s", content
)
126 if not content
['alarm_delete_response']['status']:
127 raise ValueError("Error deleting alarm in MON. Response status is False.")
128 alarm_uuid
= content
['alarm_delete_response']['alarm_uuid']
131 await consumer
.stop()
133 raise ValueError('No alarm deletion response from MON. Is MON up?')
136 def _build_create_alarm_payload(self
, cor_id
: int,
140 vnf_member_index
: str,
145 alarm_create_request
= {
146 'correlation_id': cor_id
,
147 'alarm_name': 'osm_alarm_{}_{}_{}_{}'.format(ns_id
, vnf_member_index
, vdu_name
, metric_name
),
148 'metric_name': metric_name
,
149 'operation': operation
,
150 'severity': 'critical',
151 'threshold_value': threshold
,
152 'statistic': statistic
,
155 'vdu_name': vdu_name
,
156 'vnf_member_index': vnf_member_index
,
160 'alarm_create_request': alarm_create_request
,
164 def _build_delete_alarm_payload(self
, cor_id
: int, ns_id
: str, vdu_name
: str,
165 vnf_member_index
: str, alarm_uuid
: str):
166 alarm_delete_request
= {
167 'correlation_id': cor_id
,
168 'alarm_uuid': alarm_uuid
,
171 'vdu_name': vdu_name
,
172 'vnf_member_index': vnf_member_index
176 'alarm_delete_request': alarm_delete_request
,