X-Git-Url: https://osm.etsi.org/gitweb/?a=blobdiff_plain;f=osm_mon%2Fserver%2Fserver.py;h=07fdd225a17aeb145a71cb5b48c671c3289a81de;hb=refs%2Fchanges%2F82%2F10782%2F3;hp=854d9268e521bbdf2556a474a0e422421ceb95a4;hpb=de3d570360a0a31d3054a6ff72b09ae9f559b59c;p=osm%2FMON.git diff --git a/osm_mon/server/server.py b/osm_mon/server/server.py index 854d926..07fdd22 100755 --- a/osm_mon/server/server.py +++ b/osm_mon/server/server.py @@ -20,118 +20,114 @@ # For those usages not covered by the Apache License, Version 2.0 please # contact: bdiaz@whitestack.com or glavado@whitestack.com ## -"""A common KafkaConsumer for all MON plugins.""" - +""" +MON component in charge of CRUD operations for vim_accounts and alarms. It uses the message bus to communicate. +""" +import asyncio import json import logging -from json import JSONDecodeError - -import yaml -from osm_mon.core.auth import AuthManager -from osm_mon.core.common_db import CommonDbClient -from osm_mon.core.database import DatabaseManager -from osm_mon.core.message_bus.consumer import Consumer -from osm_mon.core.message_bus.producer import Producer +from osm_mon.core.config import Config +from osm_mon.core.message_bus_client import MessageBusClient from osm_mon.core.response import ResponseBuilder +from osm_mon.server.service import ServerService log = logging.getLogger(__name__) class Server: - - def __init__(self): - self.auth_manager = AuthManager() - self.database_manager = DatabaseManager() - self.database_manager.create_tables() - self.common_db = CommonDbClient() + def __init__(self, config: Config, loop=None): + self.conf = config + if not loop: + loop = asyncio.get_event_loop() + self.loop = loop + self.msg_bus = MessageBusClient(config) + self.service = ServerService(config) + self.service.populate_prometheus() def run(self): - common_consumer = Consumer("mon-server") - - topics = ['alarm_request', 'vim_account'] - common_consumer.subscribe(topics) + self.loop.run_until_complete(self.start()) - log.info("Listening for messages...") - for message in common_consumer: - self.consume_message(message) - - def consume_message(self, message): - log.info("Message arrived: %s", message) + async def start(self): + topics = ["alarm_request"] + try: + await self.msg_bus.aioread(topics, self._process_msg) + except Exception as e: + # Failed to subscribe to kafka topic + log.exception("Error when subscribing to topics %s", str(topics)) + raise e + + async def _process_msg(self, topic, key, values): + log.info("Message arrived: %s", values) try: - try: - values = json.loads(message.value) - except JSONDecodeError: - values = yaml.safe_load(message.value) - - response = None - - if message.topic == "vim_account": - if message.key == "create" or message.key == "edit": - values['vim_password'] = self.common_db.decrypt_vim_password(values['vim_password'], - values['schema_version'], - values['_id']) - self.auth_manager.store_auth_credentials(values) - if message.key == "delete": - self.auth_manager.delete_auth_credentials(values) - - elif message.topic == "alarm_request": - if message.key == "create_alarm_request": - alarm_details = values['alarm_create_request'] + + if topic == "alarm_request": + if key == "create_alarm_request": + alarm_details = values["alarm_create_request"] + cor_id = alarm_details["correlation_id"] response_builder = ResponseBuilder() try: - alarm = self.database_manager.save_alarm( - alarm_details['alarm_name'], - alarm_details['threshold_value'], - alarm_details['operation'].lower(), - alarm_details['severity'].lower(), - alarm_details['statistic'].lower(), - alarm_details['metric_name'], - alarm_details['vdu_name'], - alarm_details['vnf_member_index'], - alarm_details['ns_id'] + alarm = self.service.create_alarm( + alarm_details["alarm_name"], + alarm_details["threshold_value"], + alarm_details["operation"].lower(), + alarm_details["severity"].lower(), + alarm_details["statistic"].lower(), + alarm_details["metric_name"], + alarm_details["tags"], + ) + response = response_builder.generate_response( + "create_alarm_response", + cor_id=cor_id, + status=True, + alarm_id=alarm.uuid, ) - response = response_builder.generate_response('create_alarm_response', - cor_id=alarm_details['correlation_id'], - status=True, - alarm_id=alarm.uuid) except Exception: log.exception("Error creating alarm: ") - response = response_builder.generate_response('create_alarm_response', - cor_id=alarm_details['correlation_id'], - status=False, - alarm_id=None) - if message.key == "delete_alarm_request": - alarm_details = values['alarm_delete_request'] - alarm_uuid = alarm_details['alarm_uuid'] + response = response_builder.generate_response( + "create_alarm_response", + cor_id=cor_id, + status=False, + alarm_id=None, + ) + await self._publish_response( + "alarm_response_" + str(cor_id), + "create_alarm_response", + response, + ) + + if key == "delete_alarm_request": + alarm_details = values["alarm_delete_request"] + alarm_uuid = alarm_details["alarm_uuid"] response_builder = ResponseBuilder() - cor_id = alarm_details['correlation_id'] + cor_id = alarm_details["correlation_id"] try: - self.database_manager.delete_alarm(alarm_uuid) - response = response_builder.generate_response('delete_alarm_response', - cor_id=cor_id, - status=True, - alarm_id=alarm_uuid) + self.service.delete_alarm(alarm_uuid) + response = response_builder.generate_response( + "delete_alarm_response", + cor_id=cor_id, + status=True, + alarm_id=alarm_uuid, + ) except Exception: log.exception("Error deleting alarm: ") - response = response_builder.generate_response('delete_alarm_response', - cor_id=cor_id, - status=False, - alarm_id=alarm_uuid) - if response: - self._publish_response(message.topic, message.key, response) + response = response_builder.generate_response( + "delete_alarm_response", + cor_id=cor_id, + status=False, + alarm_id=alarm_uuid, + ) + await self._publish_response( + "alarm_response_" + str(cor_id), + "delete_alarm_response", + response, + ) except Exception: log.exception("Exception processing message: ") - def _publish_response(self, topic: str, key: str, msg: dict): - topic = topic.replace('request', 'response') - key = key.replace('request', 'response') - producer = Producer() - producer.send(topic=topic, key=key, value=json.dumps(msg)) - producer.flush(timeout=5) - producer.close() - - -if __name__ == '__main__': - Server().run() + async def _publish_response(self, topic: str, key: str, msg: dict): + log.info( + "Sending response %s to topic %s with key %s", json.dumps(msg), topic, key + ) + await self.msg_bus.aiowrite(topic, key, msg)