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 logging.basicConfig(stream=sys.stdout,
  30                     format='%(asctime)s %(message)s',
  31                     datefmt='%m/%d/%Y %I:%M:%S %p',
  32                     level=logging.INFO)
  33 log = logging.getLogger(__name__)
  34
  35
  36 sys.path.append(os.path.abspath(os.path.join(os.path.realpath(__file__), '..', '..', '..', '..')))
  37
  38 from kafka import KafkaConsumer
  39
  40 from osm_mon.plugins.OpenStack.Aodh import alarming
  41 from osm_mon.plugins.OpenStack.Gnocchi import metrics
  42
  43 from osm_mon.plugins.CloudWatch.plugin_alarm import plugin_alarms
  44 from osm_mon.plugins.CloudWatch.plugin_metric import plugin_metrics
  45 from osm_mon.plugins.CloudWatch.connection import Connection
  46 from osm_mon.plugins.CloudWatch.access_credentials import AccessCredentials
  47
  48 from osm_mon.plugins.vRealiseOps import plugin_receiver
  49
  50 from osm_mon.core.auth import AuthManager
  51 from osm_mon.core.database import DatabaseManager
  52
  53 # Initialize servers
  54 if "BROKER_URI" in os.environ:
  55     server = {'server': os.getenv("BROKER_URI")}
  56 else:
  57     server = {'server': 'localhost:9092'}
  58
  59 # Initialize consumers for alarms and metrics
  60 common_consumer = KafkaConsumer(bootstrap_servers=server['server'],
  61                                 key_deserializer=bytes.decode,
  62                                 value_deserializer=bytes.decode,
  63                                 group_id="mon-consumer")
  64
  65 auth_manager = AuthManager()
  66 database_manager = DatabaseManager()
  67 database_manager.create_tables()
  68
  69 # Create OpenStack alarming and metric instances
  70 openstack_metrics = metrics.Metrics()
  71 openstack_alarms = alarming.Alarming()
  72
  73 # Create CloudWatch alarm and metric instances
  74 cloudwatch_alarms = plugin_alarms()
  75 cloudwatch_metrics = plugin_metrics()
  76 aws_connection = Connection()
  77 aws_access_credentials = AccessCredentials()
  78
  79 # Create vROps plugin_receiver class instance
  80 vrops_rcvr = plugin_receiver.PluginReceiver()
  81
  82
  83 def get_vim_type(vim_uuid):
  84     """Get the vim type that is required by the message."""
  85     try:
  86         credentials = database_manager.get_credentials(vim_uuid)
  87         return credentials.type
  88     except Exception as exc:
  89         log.exception("Error getting vim_type: ")
  90     return None
  91
  92
  93 # Define subscribe the consumer for the plugins
  94 topics = ['metric_request', 'alarm_request', 'access_credentials', 'vim_account']
  95 # TODO: Remove access_credentials
  96 common_consumer.subscribe(topics)
  97
  98 log.info("Listening for alarm_request and metric_request messages")
  99 for message in common_consumer:
 100     log.info("Message arrived: %s", message)
 101     try:
 102         try:
 103             values = json.loads(message.value)
 104         except ValueError:
 105             values = yaml.safe_load(message.value)
 106         # Check the message topic
 107         if message.topic == "metric_request":
 108             # Check the vim desired by the message
 109             vim_type = get_vim_type(values['vim_uuid'])
 110
 111             if vim_type == "openstack":
 112                 log.info("This message is for the OpenStack plugin.")
 113                 openstack_metrics.metric_calls(message)
 114             elif vim_type == "aws":
 115                 log.info("This message is for the CloudWatch plugin.")
 116                 aws_conn = aws_connection.setEnvironment()
 117                 cloudwatch_metrics.metric_calls(message, aws_conn)
 118
 119             elif vim_type == "vmware":
 120                 log.info("This metric_request message is for the vROPs plugin.")
 121                 vrops_rcvr.consume(message)
 122
 123             else:
 124                 log.debug("vim_type is misconfigured or unsupported; %s",
 125                           vim_type)
 126
 127         elif message.topic == "alarm_request":
 128             # Check the vim desired by the message
 129             vim_type = get_vim_type(values['vim_uuid'])
 130             if vim_type == "openstack":
 131                 log.info("This message is for the OpenStack plugin.")
 132                 openstack_alarms.alarming(message)
 133
 134             elif vim_type == "aws":
 135                 log.info("This message is for the CloudWatch plugin.")
 136                 aws_conn = aws_connection.setEnvironment()
 137                 cloudwatch_alarms.alarm_calls(message, aws_conn)
 138
 139             elif vim_type == "vmware":
 140                 log.info("This alarm_request message is for the vROPs plugin.")
 141                 vrops_rcvr.consume(message)
 142
 143             else:
 144                 log.debug("vim_type is misconfigured or unsupported; %s",
 145                           vim_type)
 146
 147         elif message.topic == "vim_account":
 148             if message.key == "create" or message.key == "edit":
 149                 auth_manager.store_auth_credentials(values)
 150             if message.key == "delete":
 151                 auth_manager.delete_auth_credentials(values)
 152
 153         # TODO: Remove in the near future when all plugins support vim_uuid. Modify tests accordingly.
 154         elif message.topic == "access_credentials":
 155             # Check the vim desired by the message
 156             vim_type = get_vim_type(values['vim_uuid'])
 157
 158             if vim_type == "aws":
 159                 log.info("This message is for the CloudWatch plugin.")
 160                 aws_access_credentials.access_credential_calls(message)
 161
 162             elif vim_type == "vmware":
 163                 log.info("This access_credentials message is for the vROPs plugin.")
 164                 vrops_rcvr.consume(message)
 165
 166             else:
 167                 log.debug("vim_type is misconfigured or unsupported; %s",
 168                           vim_type)
 169
 170         else:
 171             log.info("This topic is not relevant to any of the MON plugins.")
 172
 173
 174     except Exception as exc:
 175         log.exception("Exception: %s")