osm_mon/core/message_bus/common_consumer.py

   1 # Copyright 2017 Intel Research and Development Ireland Limited
   2 # *************************************************************
   3 # This file is part of OSM Monitoring module
   4 # All Rights Reserved to Intel Corporation
   5 #
   6 # Licensed under the Apache License, Version 2.0 (the "License"); you
   7 # may not use this file except in compliance with the License. You may
   8 # obtain a copy of the License at
   9 #
  10 #         http://www.apache.org/licenses/LICENSE-2.0
  11 #
  12 # Unless required by applicable law or agreed to in writing, software
  13 # distributed under the License is distributed on an "AS IS" BASIS,
  14 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
  15 # implied. See the License for the specific language governing
  16 # permissions and limitations under the License.
  17 #
  18 # For those usages not covered by the Apache License, Version 2.0 please
  19 # contact: helena.mcgough@intel.com or adrian.hoban@intel.com
  20 """A common KafkaConsumer for all MON plugins."""
  21
  22 import json
  23 import logging
  24 import sys
  25 import threading
  26
  27 import six
  28 import yaml
  29 from kafka import KafkaConsumer
  30 from osm_common import dbmongo
  31
  32 from osm_mon.core.auth import AuthManager
  33 from osm_mon.core.database import DatabaseManager
  34 from osm_mon.core.settings import Config
  35 from osm_mon.plugins.CloudWatch.access_credentials import AccessCredentials
  36 from osm_mon.plugins.CloudWatch.connection import Connection
  37 from osm_mon.plugins.CloudWatch.plugin_alarm import plugin_alarms
  38 from osm_mon.plugins.CloudWatch.plugin_metric import plugin_metrics
  39 from osm_mon.plugins.OpenStack.Aodh import alarming
  40 from osm_mon.plugins.OpenStack.Gnocchi import metrics
  41 from osm_mon.plugins.vRealiseOps import plugin_receiver
  42
  43 cfg = Config.instance()
  44
  45 logging.basicConfig(stream=sys.stdout,
  46                     format='%(asctime)s - %(name)s - %(levelname)s - %(message)s',
  47                     datefmt='%m/%d/%Y %I:%M:%S %p',
  48                     level=logging.getLevelName(cfg.OSMMON_LOG_LEVEL))
  49 log = logging.getLogger(__name__)
  50
  51 kafka_logger = logging.getLogger('kafka')
  52 kafka_logger.setLevel(logging.getLevelName(cfg.OSMMON_KAFKA_LOG_LEVEL))
  53 kafka_formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
  54 kafka_handler = logging.StreamHandler(sys.stdout)
  55 kafka_handler.setFormatter(kafka_formatter)
  56 kafka_logger.addHandler(kafka_handler)
  57
  58
  59 class CommonConsumer:
  60
  61     def __init__(self):
  62         cfg = Config.instance()
  63
  64         self.auth_manager = AuthManager()
  65         self.database_manager = DatabaseManager()
  66         self.database_manager.create_tables()
  67
  68         # Create OpenStack alarming and metric instances
  69         self.openstack_metrics = metrics.Metrics()
  70         self.openstack_alarms = alarming.Alarming()
  71
  72         # Create CloudWatch alarm and metric instances
  73         self.cloudwatch_alarms = plugin_alarms()
  74         self.cloudwatch_metrics = plugin_metrics()
  75         self.aws_connection = Connection()
  76         self.aws_access_credentials = AccessCredentials()
  77
  78         # Create vROps plugin_receiver class instance
  79         self.vrops_rcvr = plugin_receiver.PluginReceiver()
  80
  81         log.info("Connecting to MongoDB...")
  82         self.common_db = dbmongo.DbMongo()
  83         common_db_uri = cfg.MONGO_URI.split(':')
  84         self.common_db.db_connect({'host': common_db_uri[0], 'port': int(common_db_uri[1]), 'name': 'osm'})
  85         log.info("Connection successful.")
  86
  87     def get_vim_type(self, vim_uuid):
  88         """Get the vim type that is required by the message."""
  89         credentials = self.database_manager.get_credentials(vim_uuid)
  90         return credentials.type
  91
  92     def get_vdur(self, nsr_id, member_index, vdu_name):
  93         vnfr = self.get_vnfr(nsr_id, member_index)
  94         for vdur in vnfr['vdur']:
  95             if vdur['name'] == vdu_name:
  96                 return vdur
  97         raise ValueError('vdur not found for nsr-id %s, member_index %s and vdu_name %s', nsr_id, member_index,
  98                          vdu_name)
  99
 100     def get_vnfr(self, nsr_id, member_index):
 101         vnfr = self.common_db.get_one("vnfrs",
 102                                       {"nsr-id-ref": nsr_id, "member-vnf-index-ref": str(member_index)})
 103         return vnfr
 104
 105     def run(self):
 106         common_consumer = KafkaConsumer(bootstrap_servers=cfg.BROKER_URI,
 107                                         key_deserializer=bytes.decode,
 108                                         value_deserializer=bytes.decode,
 109                                         group_id="mon-consumer")
 110
 111         topics = ['metric_request', 'alarm_request', 'vim_account']
 112         common_consumer.subscribe(topics)
 113
 114         log.info("Listening for messages...")
 115         for message in common_consumer:
 116             t = threading.Thread(target=self.consume_message, args=(message,))
 117             t.start()
 118
 119     def consume_message(self, message):
 120         log.info("Message arrived: %s", message)
 121         try:
 122             try:
 123                 values = json.loads(message.value)
 124             except ValueError:
 125                 values = yaml.safe_load(message.value)
 126
 127             if message.topic == "vim_account":
 128                 if message.key == "create" or message.key == "edit":
 129                     self.auth_manager.store_auth_credentials(values)
 130                 if message.key == "delete":
 131                     self.auth_manager.delete_auth_credentials(values)
 132
 133             else:
 134                 # Get ns_id from message
 135                 # TODO: Standardize all message models to avoid the need of figuring out where are certain fields
 136                 contains_list = False
 137                 list_index = None
 138                 for k, v in six.iteritems(values):
 139                     if isinstance(v, dict):
 140                         if 'ns_id' in v:
 141                             contains_list = True
 142                             list_index = k
 143                             break
 144                 if not contains_list and 'ns_id' in values:
 145                     ns_id = values['ns_id']
 146                 else:
 147                     ns_id = values[list_index]['ns_id']
 148
 149                 vnf_index = values[list_index]['vnf_member_index'] if contains_list else values['vnf_member_index']
 150
 151                 # Check the vim desired by the message
 152                 vnfr = self.get_vnfr(ns_id, vnf_index)
 153                 vim_uuid = vnfr['vim-account-id']
 154
 155                 if (contains_list and 'vdu_name' in values[list_index]) or 'vdu_name' in values:
 156                     vdu_name = values[list_index]['vdu_name'] if contains_list else values['vdu_name']
 157                     vdur = self.get_vdur(ns_id, vnf_index, vdu_name)
 158                     if contains_list:
 159                         values[list_index]['resource_uuid'] = vdur['vim-id']
 160                     else:
 161                         values['resource_uuid'] = vdur['vim-id']
 162                     message = message._replace(value=json.dumps(values))
 163
 164                 vim_type = self.get_vim_type(vim_uuid)
 165
 166                 if vim_type == "openstack":
 167                     log.info("This message is for the OpenStack plugin.")
 168                     if message.topic == "metric_request":
 169                         self.openstack_metrics.metric_calls(message, vim_uuid)
 170                     if message.topic == "alarm_request":
 171                         self.openstack_alarms.alarming(message, vim_uuid)
 172
 173                 elif vim_type == "aws":
 174                     log.info("This message is for the CloudWatch plugin.")
 175                     aws_conn = self.aws_connection.setEnvironment()
 176                     if message.topic == "metric_request":
 177                         self.cloudwatch_metrics.metric_calls(message, aws_conn)
 178                     if message.topic == "alarm_request":
 179                         self.cloudwatch_alarms.alarm_calls(message, aws_conn)
 180                     if message.topic == "access_credentials":
 181                         self.aws_access_credentials.access_credential_calls(message)
 182
 183                 elif vim_type == "vmware":
 184                     log.info("This metric_request message is for the vROPs plugin.")
 185                     self.vrops_rcvr.consume(message,vim_uuid)
 186
 187                 else:
 188                     log.debug("vim_type is misconfigured or unsupported; %s",
 189                               vim_type)
 190
 191         except Exception:
 192             log.exception("Exception processing message: ")
 193
 194
 195 if __name__ == '__main__':
 196     CommonConsumer().run()