# 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["action"],
+ 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)
projects / osm / MON.git / blobdiff