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 logging.basicConfig(stream=sys.stdout,
  28                     format='%(asctime)s %(message)s',
  29                     datefmt='%m/%d/%Y %I:%M:%S %p',
  30                     level=logging.INFO)
  31 log = logging.getLogger(__name__)
  32
  33 sys.path.append(os.path.abspath(os.path.join(os.path.realpath(__file__), '..', '..', '..', '..')))
  34
  35 from kafka import KafkaConsumer
  36
  37 from osm_mon.plugins.OpenStack.Aodh import alarming
  38 from osm_mon.plugins.OpenStack.Gnocchi import metrics
  39
  40 from osm_mon.plugins.CloudWatch.plugin_alarm import plugin_alarms
  41 from osm_mon.plugins.CloudWatch.plugin_metric import plugin_metrics
  42 from osm_mon.plugins.CloudWatch.connection import Connection
  43 from osm_mon.plugins.CloudWatch.access_credentials import AccessCredentials
  44
  45 from osm_mon.plugins.vRealiseOps import plugin_receiver
  46
  47 from osm_mon.core.auth import AuthManager
  48 from osm_mon.core.database import DatabaseManager
  49
  50 # Initialize servers
  51 if "BROKER_URI" in os.environ:
  52     server = {'server': os.getenv("BROKER_URI")}
  53 else:
  54     server = {'server': 'localhost:9092'}
  55
  56 # Initialize consumers for alarms and metrics
  57 common_consumer = KafkaConsumer(bootstrap_servers=server['server'],
  58                                 key_deserializer=bytes.decode,
  59                                 value_deserializer=bytes.decode,
  60                                 group_id="mon-consumer")
  61
  62 auth_manager = AuthManager()
  63 database_manager = DatabaseManager()
  64 database_manager.create_tables()
  65
  66 # Create OpenStack alarming and metric instances
  67 openstack_metrics = metrics.Metrics()
  68 openstack_alarms = alarming.Alarming()
  69
  70 # Create CloudWatch alarm and metric instances
  71 cloudwatch_alarms = plugin_alarms()
  72 cloudwatch_metrics = plugin_metrics()
  73 aws_connection = Connection()
  74 aws_access_credentials = AccessCredentials()
  75
  76 # Create vROps plugin_receiver class instance
  77 vrops_rcvr = plugin_receiver.PluginReceiver()
  78
  79
  80 def get_vim_type(message):
  81     """Get the vim type that is required by the message."""
  82     try:
  83         return json.loads(message.value)["vim_type"].lower()
  84     except Exception as exc:
  85         log.warn("vim_type is not configured correctly; %s", exc)
  86     return None
  87
  88
  89 # Define subscribe the consumer for the plugins
  90 topics = ['metric_request', 'alarm_request', 'access_credentials', 'vim_account']
  91 # TODO: Remove access_credentials
  92 common_consumer.subscribe(topics)
  93
  94 log.info("Listening for alarm_request and metric_request messages")
  95 for message in common_consumer:
  96     log.info("Message arrived: %s", message)
  97     try:
  98         values = json.loads(message.value)
  99         # Check the message topic
 100         if message.topic == "metric_request":
 101             # Check the vim desired by the message
 102             vim_type = get_vim_type(message)
 103
 104             if vim_type == "openstack":
 105                 log.info("This message is for the OpenStack plugin.")
 106                 openstack_metrics.metric_calls(message)
 107             elif vim_type == "aws":
 108                 log.info("This message is for the CloudWatch plugin.")
 109                 aws_conn = aws_connection.setEnvironment()
 110                 cloudwatch_metrics.metric_calls(message, aws_conn)
 111
 112             elif vim_type == "vmware":
 113                 log.info("This metric_request message is for the vROPs plugin.")
 114                 vrops_rcvr.consume(message)
 115
 116             else:
 117                 log.debug("vim_type is misconfigured or unsupported; %s",
 118                           vim_type)
 119
 120         elif message.topic == "alarm_request":
 121             # Check the vim desired by the message
 122             vim_type = get_vim_type(message)
 123             if vim_type == "openstack":
 124                 log.info("This message is for the OpenStack plugin.")
 125                 openstack_alarms.alarming(message)
 126
 127             elif vim_type == "aws":
 128                 log.info("This message is for the CloudWatch plugin.")
 129                 aws_conn = aws_connection.setEnvironment()
 130                 cloudwatch_alarms.alarm_calls(message, aws_conn)
 131
 132             elif vim_type == "vmware":
 133                 log.info("This alarm_request message is for the vROPs plugin.")
 134                 vrops_rcvr.consume(message)
 135
 136             else:
 137                 log.debug("vim_type is misconfigured or unsupported; %s",
 138                           vim_type)
 139
 140         elif message.topic == "vim_account":
 141             if message.key == "create" or message.key == "edit":
 142                 auth_manager.store_auth_credentials(values)
 143             if message.key == "delete":
 144                 auth_manager.delete_auth_credentials(values)
 145
 146         # TODO: Remove in the near future when all plugins support vim_uuid. Modify tests accordingly.
 147         elif message.topic == "access_credentials":
 148             # Check the vim desired by the message
 149             vim_type = get_vim_type(message)
 150
 151             if vim_type == "aws":
 152                 log.info("This message is for the CloudWatch plugin.")
 153                 aws_access_credentials.access_credential_calls(message)
 154
 155             elif vim_type == "vmware":
 156                 log.info("This access_credentials message is for the vROPs plugin.")
 157                 vrops_rcvr.consume(message)
 158
 159             else:
 160                 log.debug("vim_type is misconfigured or unsupported; %s",
 161                           vim_type)
 162
 163         else:
 164             log.info("This topic is not relevant to any of the MON plugins.")
 165
 166
 167     except Exception as exc:
 168         log.exception("Exception: %s")