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.common import Common
  39 from osm_mon.plugins.OpenStack.Gnocchi import metrics
  40
  41 from osm_mon.plugins.CloudWatch.plugin_alarm import plugin_alarms
  42 from osm_mon.plugins.CloudWatch.plugin_metric import plugin_metrics
  43 from osm_mon.plugins.CloudWatch.connection import Connection
  44 from osm_mon.plugins.CloudWatch.access_credentials import AccessCredentials
  45
  46 from osm_mon.plugins.vRealiseOps import plugin_receiver
  47
  48 from osm_mon.core.auth import AuthManager
  49 from osm_mon.core.database import DatabaseManager
  50
  51 # Initialize servers
  52 if "BROKER_URI" in os.environ:
  53     server = {'server': os.getenv("BROKER_URI")}
  54 else:
  55     server = {'server': 'localhost:9092'}
  56
  57 # Initialize consumers for alarms and metrics
  58 common_consumer = KafkaConsumer(bootstrap_servers=server['server'],
  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 auth_token = None
  69 openstack_auth = Common()
  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(message):
  84     """Get the vim type that is required by the message."""
  85     try:
  86         return json.loads(message.value)["vim_type"].lower()
  87     except Exception as exc:
  88         log.warn("vim_type is not configured correctly; %s", exc)
  89     return None
  90
  91
  92 # Define subscribe the consumer for the plugins
  93 topics = ['metric_request', 'alarm_request', 'access_credentials', 'vim_account']
  94 # TODO: Remove access_credentials
  95 common_consumer.subscribe(topics)
  96
  97 log.info("Listening for alarm_request and metric_request messages")
  98 for message in common_consumer:
  99     log.info("Message arrived: %s", message)
 100     try:
 101         # Check the message topic
 102         if message.topic == "metric_request":
 103             # Check the vim desired by the message
 104             vim_type = get_vim_type(message)
 105
 106             if vim_type == "openstack":
 107                 log.info("This message is for the OpenStack plugin.")
 108                 openstack_metrics.metric_calls(
 109                     message, openstack_auth, auth_token)
 110
 111             elif vim_type == "aws":
 112                 log.info("This message is for the CloudWatch plugin.")
 113                 aws_conn = aws_connection.setEnvironment()
 114                 cloudwatch_metrics.metric_calls(message, aws_conn)
 115
 116             elif vim_type == "vmware":
 117                 log.info("This metric_request message is for the vROPs plugin.")
 118                 vrops_rcvr.consume(message)
 119
 120             else:
 121                 log.debug("vim_type is misconfigured or unsupported; %s",
 122                           vim_type)
 123
 124         elif message.topic == "alarm_request":
 125             # Check the vim desired by the message
 126             vim_type = get_vim_type(message)
 127             if vim_type == "openstack":
 128                 log.info("This message is for the OpenStack plugin.")
 129                 openstack_alarms.alarming(message, openstack_auth, auth_token)
 130
 131             elif vim_type == "aws":
 132                 log.info("This message is for the CloudWatch plugin.")
 133                 aws_conn = aws_connection.setEnvironment()
 134                 cloudwatch_alarms.alarm_calls(message, aws_conn)
 135
 136             elif vim_type == "vmware":
 137                 log.info("This alarm_request message is for the vROPs plugin.")
 138                 vrops_rcvr.consume(message)
 139
 140             else:
 141                 log.debug("vim_type is misconfigured or unsupported; %s",
 142                           vim_type)
 143
 144         elif message.topic == "vim_account":
 145             if message.key == "create" or message.key == "edit":
 146                 auth_manager.store_auth_credentials(message)
 147             if message.key == "delete":
 148                 auth_manager.delete_auth_credentials(message)
 149
 150         # TODO: Remove in the near future. Modify tests accordingly.
 151         elif message.topic == "access_credentials":
 152             # Check the vim desired by the message
 153             vim_type = get_vim_type(message)
 154             if vim_type == "openstack":
 155                 log.info("This message is for the OpenStack plugin.")
 156                 auth_token = openstack_auth._authenticate(message=message)
 157
 158             elif 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")