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 os
  25 import sys
  26
  27 import yaml
  28
  29 from osm_mon.core.settings import Config
  30
  31 logging.basicConfig(stream=sys.stdout,
  32                     format='%(asctime)s %(message)s',
  33                     datefmt='%m/%d/%Y %I:%M:%S %p',
  34                     level=logging.INFO)
  35 log = logging.getLogger(__name__)
  36
  37 sys.path.append(os.path.abspath(os.path.join(os.path.realpath(__file__), '..', '..', '..', '..')))
  38
  39 from kafka import KafkaConsumer
  40
  41 from osm_mon.plugins.OpenStack.Aodh import alarming
  42 from osm_mon.plugins.OpenStack.Gnocchi import metrics
  43
  44 from osm_mon.plugins.CloudWatch.plugin_alarm import plugin_alarms
  45 from osm_mon.plugins.CloudWatch.plugin_metric import plugin_metrics
  46 from osm_mon.plugins.CloudWatch.connection import Connection
  47 from osm_mon.plugins.CloudWatch.access_credentials import AccessCredentials
  48
  49 from osm_mon.plugins.vRealiseOps import plugin_receiver
  50
  51 from osm_mon.core.auth import AuthManager
  52 from osm_mon.core.database import DatabaseManager
  53
  54 cfg = Config.instance()
  55 cfg.read_environ()
  56
  57 # Initialize consumers for alarms and metrics
  58 common_consumer = KafkaConsumer(bootstrap_servers=cfg.BROKER_URI,
  59                                 key_deserializer=bytes.decode,
  60                                 value_deserializer=bytes.decode,
  61                                 group_id="mon-consumer")
  62
  63 auth_manager = AuthManager()
  64 database_manager = DatabaseManager()
  65 database_manager.create_tables()
  66
  67 # Create OpenStack alarming and metric instances
  68 openstack_metrics = metrics.Metrics()
  69 openstack_alarms = alarming.Alarming()
  70
  71 # Create CloudWatch alarm and metric instances
  72 cloudwatch_alarms = plugin_alarms()
  73 cloudwatch_metrics = plugin_metrics()
  74 aws_connection = Connection()
  75 aws_access_credentials = AccessCredentials()
  76
  77 # Create vROps plugin_receiver class instance
  78 vrops_rcvr = plugin_receiver.PluginReceiver()
  79
  80
  81 def get_vim_type(vim_uuid):
  82     """Get the vim type that is required by the message."""
  83     try:
  84         credentials = database_manager.get_credentials(vim_uuid)
  85         return credentials.type
  86     except Exception:
  87         log.exception("Error getting vim_type: ")
  88     return None
  89
  90
  91 # Define subscribe the consumer for the plugins
  92 topics = ['metric_request', 'alarm_request', 'access_credentials', 'vim_account']
  93 # TODO: Remove access_credentials
  94 common_consumer.subscribe(topics)
  95
  96 log.info("Listening for alarm_request and metric_request messages")
  97 for message in common_consumer:
  98     log.info("Message arrived: %s", message)
  99     try:
 100         try:
 101             values = json.loads(message.value)
 102         except ValueError:
 103             values = yaml.safe_load(message.value)
 104
 105         if message.topic == "vim_account":
 106             if message.key == "create" or message.key == "edit":
 107                 auth_manager.store_auth_credentials(values)
 108             if message.key == "delete":
 109                 auth_manager.delete_auth_credentials(values)
 110
 111         else:
 112             # Check the vim desired by the message
 113             vim_type = get_vim_type(values['vim_uuid'])
 114             if vim_type == "openstack":
 115                 log.info("This message is for the OpenStack plugin.")
 116                 if message.topic == "metric_request":
 117                     openstack_metrics.metric_calls(message)
 118                 if message.topic == "alarm_request":
 119                     openstack_alarms.alarming(message)
 120
 121             elif vim_type == "aws":
 122                 log.info("This message is for the CloudWatch plugin.")
 123                 aws_conn = aws_connection.setEnvironment()
 124                 if message.topic == "metric_request":
 125                     cloudwatch_metrics.metric_calls(message, aws_conn)
 126                 if message.topic == "alarm_request":
 127                     cloudwatch_alarms.alarm_calls(message, aws_conn)
 128                 if message.topic == "access_credentials":
 129                     aws_access_credentials.access_credential_calls(message)
 130
 131             elif vim_type == "vmware":
 132                 log.info("This metric_request message is for the vROPs plugin.")
 133                 vrops_rcvr.consume(message)
 134
 135             else:
 136                 log.debug("vim_type is misconfigured or unsupported; %s",
 137                           vim_type)
 138
 139     except Exception:
 140         log.exception("Exception processing message: ")