| 1 |
|
# -*- coding: utf-8 -*- |
| 2 |
|
|
| 3 |
|
# Copyright 2018 Whitestack, LLC |
| 4 |
|
# ************************************************************* |
| 5 |
|
|
| 6 |
|
# This file is part of OSM Monitoring module |
| 7 |
|
# All Rights Reserved to Whitestack, LLC |
| 8 |
|
|
| 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 |
| 12 |
|
|
| 13 |
|
# http://www.apache.org/licenses/LICENSE-2.0 |
| 14 |
|
|
| 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 |
| 19 |
|
# under the License. |
| 20 |
|
|
| 21 |
|
# For those usages not covered by the Apache License, Version 2.0 please |
| 22 |
|
# contact: bdiaz@whitestack.com or glavado@whitestack.com |
| 23 |
|
## |
| 24 |
1 |
import asyncio |
| 25 |
1 |
import json |
| 26 |
1 |
import logging |
| 27 |
1 |
import random |
| 28 |
1 |
from json import JSONDecodeError |
| 29 |
|
|
| 30 |
1 |
import yaml |
| 31 |
1 |
from aiokafka import AIOKafkaProducer, AIOKafkaConsumer |
| 32 |
|
|
| 33 |
1 |
from osm_policy_module.core.config import Config |
| 34 |
|
|
| 35 |
1 |
log = logging.getLogger(__name__) |
| 36 |
|
|
| 37 |
|
|
| 38 |
1 |
class MonClient: |
| 39 |
1 |
def __init__(self, config: Config, loop=None): |
| 40 |
1 |
self.kafka_server = '{}:{}'.format(config.get('message', 'host'), |
| 41 |
|
config.get('message', 'port')) |
| 42 |
1 |
if not loop: |
| 43 |
0 |
loop = asyncio.get_event_loop() |
| 44 |
1 |
self.loop = loop |
| 45 |
|
|
| 46 |
1 |
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 |
0 |
cor_id = random.randint(1, 10e7) |
| 49 |
0 |
msg = self._build_create_alarm_payload(cor_id, |
| 50 |
|
metric_name, |
| 51 |
|
ns_id, |
| 52 |
|
vdu_name, |
| 53 |
|
vnf_member_index, |
| 54 |
|
threshold, |
| 55 |
|
statistic, |
| 56 |
|
operation) |
| 57 |
0 |
log.debug("Sending create_alarm_request %s", msg) |
| 58 |
0 |
producer = AIOKafkaProducer(loop=self.loop, |
| 59 |
|
bootstrap_servers=self.kafka_server, |
| 60 |
|
key_serializer=str.encode, |
| 61 |
|
value_serializer=str.encode) |
| 62 |
0 |
await producer.start() |
| 63 |
0 |
try: |
| 64 |
0 |
await producer.send_and_wait("alarm_request", key="create_alarm_request", value=json.dumps(msg)) |
| 65 |
|
finally: |
| 66 |
0 |
await producer.stop() |
| 67 |
0 |
log.debug("Waiting for create_alarm_response...") |
| 68 |
0 |
consumer = AIOKafkaConsumer( |
| 69 |
|
"alarm_response_" + str(cor_id), |
| 70 |
|
loop=self.loop, |
| 71 |
|
bootstrap_servers=self.kafka_server, |
| 72 |
|
key_deserializer=bytes.decode, |
| 73 |
|
value_deserializer=bytes.decode, |
| 74 |
|
auto_offset_reset='earliest') |
| 75 |
0 |
await consumer.start() |
| 76 |
0 |
alarm_uuid = None |
| 77 |
0 |
try: |
| 78 |
0 |
async for message in consumer: |
| 79 |
0 |
try: |
| 80 |
0 |
content = json.loads(message.value) |
| 81 |
0 |
except JSONDecodeError: |
| 82 |
0 |
content = yaml.safe_load(message.value) |
| 83 |
0 |
log.debug("Received create_alarm_response %s", content) |
| 84 |
0 |
if content['alarm_create_response']['correlation_id'] == cor_id: |
| 85 |
0 |
if not content['alarm_create_response']['status']: |
| 86 |
0 |
raise ValueError("Error creating alarm in MON") |
| 87 |
0 |
alarm_uuid = content['alarm_create_response']['alarm_uuid'] |
| 88 |
0 |
break |
| 89 |
|
finally: |
| 90 |
0 |
await consumer.stop() |
| 91 |
0 |
if not alarm_uuid: |
| 92 |
0 |
raise ValueError('No alarm deletion response from MON. Is MON up?') |
| 93 |
0 |
return alarm_uuid |
| 94 |
|
|
| 95 |
1 |
async def delete_alarm(self, ns_id: str, vnf_member_index: str, vdu_name: str, alarm_uuid: str): |
| 96 |
0 |
cor_id = random.randint(1, 10e7) |
| 97 |
0 |
msg = self._build_delete_alarm_payload(cor_id, ns_id, vdu_name, vnf_member_index, alarm_uuid) |
| 98 |
0 |
log.debug("Sending delete_alarm_request %s", msg) |
| 99 |
0 |
producer = AIOKafkaProducer(loop=self.loop, |
| 100 |
|
bootstrap_servers=self.kafka_server, |
| 101 |
|
key_serializer=str.encode, |
| 102 |
|
value_serializer=str.encode) |
| 103 |
0 |
await producer.start() |
| 104 |
0 |
try: |
| 105 |
0 |
await producer.send_and_wait("alarm_request", key="delete_alarm_request", value=json.dumps(msg)) |
| 106 |
|
finally: |
| 107 |
0 |
await producer.stop() |
| 108 |
0 |
log.debug("Waiting for delete_alarm_response...") |
| 109 |
0 |
consumer = AIOKafkaConsumer( |
| 110 |
|
"alarm_response_" + str(cor_id), |
| 111 |
|
loop=self.loop, |
| 112 |
|
bootstrap_servers=self.kafka_server, |
| 113 |
|
key_deserializer=bytes.decode, |
| 114 |
|
value_deserializer=bytes.decode, |
| 115 |
|
auto_offset_reset='earliest') |
| 116 |
0 |
await consumer.start() |
| 117 |
0 |
alarm_uuid = None |
| 118 |
0 |
try: |
| 119 |
0 |
async for message in consumer: |
| 120 |
0 |
try: |
| 121 |
0 |
content = json.loads(message.value) |
| 122 |
0 |
except JSONDecodeError: |
| 123 |
0 |
content = yaml.safe_load(message.value) |
| 124 |
0 |
if content['alarm_delete_response']['correlation_id'] == cor_id: |
| 125 |
0 |
log.debug("Received delete_alarm_response %s", content) |
| 126 |
0 |
if not content['alarm_delete_response']['status']: |
| 127 |
0 |
raise ValueError("Error deleting alarm in MON. Response status is False.") |
| 128 |
0 |
alarm_uuid = content['alarm_delete_response']['alarm_uuid'] |
| 129 |
0 |
break |
| 130 |
|
finally: |
| 131 |
0 |
await consumer.stop() |
| 132 |
0 |
if not alarm_uuid: |
| 133 |
0 |
raise ValueError('No alarm deletion response from MON. Is MON up?') |
| 134 |
0 |
return alarm_uuid |
| 135 |
|
|
| 136 |
1 |
def _build_create_alarm_payload(self, cor_id: int, |
| 137 |
|
metric_name: str, |
| 138 |
|
ns_id: str, |
| 139 |
|
vdu_name: str, |
| 140 |
|
vnf_member_index: str, |
| 141 |
|
threshold: int, |
| 142 |
|
statistic: str, |
| 143 |
|
operation: str): |
| 144 |
|
|
| 145 |
0 |
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, |
| 153 |
|
'tags': { |
| 154 |
|
'ns_id': ns_id, |
| 155 |
|
'vdu_name': vdu_name, |
| 156 |
|
'vnf_member_index': vnf_member_index, |
| 157 |
|
} |
| 158 |
|
} |
| 159 |
0 |
msg = { |
| 160 |
|
'alarm_create_request': alarm_create_request, |
| 161 |
|
} |
| 162 |
0 |
return msg |
| 163 |
|
|
| 164 |
1 |
def _build_delete_alarm_payload(self, cor_id: int, ns_id: str, vdu_name: str, |
| 165 |
|
vnf_member_index: str, alarm_uuid: str): |
| 166 |
0 |
alarm_delete_request = { |
| 167 |
|
'correlation_id': cor_id, |
| 168 |
|
'alarm_uuid': alarm_uuid, |
| 169 |
|
'tags': { |
| 170 |
|
'ns_id': ns_id, |
| 171 |
|
'vdu_name': vdu_name, |
| 172 |
|
'vnf_member_index': vnf_member_index |
| 173 |
|
} |
| 174 |
|
} |
| 175 |
0 |
msg = { |
| 176 |
|
'alarm_delete_request': alarm_delete_request, |
| 177 |
|
} |
| 178 |
0 |
return msg |
![[Jenkins]](/jenkins/static/c06f6c43/images/jenkins-header-logo-v2.svg){kind=logo}
