osm_mon/plugins/CloudWatch/plugin_alarm.py

   1 ##
   2 # Copyright 2017 xFlow Research Pvt. Ltd
   3 # This file is part of MON module
   4 # All Rights Reserved.
   5 #
   6 # Licensed under the Apache License, Version 2.0 (the "License"); you may
   7 # not use this file except in compliance with the License. You may obtain
   8 # 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, WITHOUT
  14 # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  15 # License for the specific language governing permissions and limitations
  16 # under the License.
  17 #
  18 # For those usages not covered by the Apache License, Version 2.0 please
  19 # contact with: wajeeha.hamid@xflowresearch.com
  20 ##
  21
  22 '''
  23 AWS-Plugin implements all the methods of MON to interact with AWS using the BOTO client
  24 '''
  25 from io import open
  26 from osm_mon.core.message_bus.producer import KafkaProducer
  27 from osm_mon.plugins.CloudWatch.metric_alarms import MetricAlarm
  28 from osm_mon.plugins.CloudWatch.metrics import Metrics
  29
  30 __author__ = "Wajeeha Hamid"
  31 __date__   = "18-September-2017"
  32
  33 import json
  34 import logging
  35
  36 log = logging.getLogger(__name__)
  37
  38 class plugin_alarms():
  39     """Receives Alarm info from MetricAlarm and connects with the consumer/producer"""
  40     def __init__ (self):
  41         self.metricAlarm = MetricAlarm()
  42         self.metric = Metrics()
  43         self.producer = KafkaProducer('')
  44 #---------------------------------------------------------------------------------------------------------------------------
  45     def configure_alarm(self,alarm_info):
  46         alarm_id = self.metricAlarm.config_alarm(self.cloudwatch_conn,alarm_info)
  47         return alarm_id
  48 #---------------------------------------------------------------------------------------------------------------------------
  49     def update_alarm_configuration(self,test):
  50         alarm_id = self.metricAlarm.update_alarm(self.cloudwatch_conn,test)
  51         return alarm_id
  52 #---------------------------------------------------------------------------------------------------------------------------
  53     def delete_alarm(self,alarm_id):
  54         return self.metricAlarm.delete_Alarm(self.cloudwatch_conn,alarm_id)
  55 #---------------------------------------------------------------------------------------------------------------------------
  56     def get_alarms_list(self,instance_id):
  57         return self.metricAlarm.alarms_list(self.cloudwatch_conn,instance_id)
  58 #---------------------------------------------------------------------------------------------------------------------------
  59     def get_ack_details(self,ack_info):
  60         return self.metricAlarm.alarm_details(self.cloudwatch_conn,ack_info)
  61 #---------------------------------------------------------------------------------------------------------------------------
  62     def get_metrics_data(self,metric_name,period,instance_id):
  63         return self.metric.metricsData(self.cloudwatch_conn,metric_name,period,instance_id)
  64 #---------------------------------------------------------------------------------------------------------------------------
  65
  66     def alarm_calls(self,message,aws_conn):
  67         """Gets the message from the common consumer"""
  68         try:
  69             self.cloudwatch_conn = aws_conn['cloudwatch_connection']
  70             self.ec2_conn = aws_conn['ec2_connection']
  71
  72             log.info("Action required against: %s" % (message.topic))
  73             alarm_info = json.loads(message.value)
  74
  75             if message.key == "create_alarm_request":
  76                 alarm_inner_dict = alarm_info['alarm_create_request']
  77                 metric_status = self.check_metric(alarm_inner_dict['metric_name'])
  78
  79                 if self.check_resource(alarm_inner_dict['resource_uuid']) == True and metric_status['status'] == True:
  80                     log.debug ("Resource and Metrics exists")
  81
  82                     alarm_info['alarm_create_request']['metric_name'] = metric_status['metric_name']
  83                     #Generate a valid response message, send via producer
  84                     config_resp = self.configure_alarm(alarm_info) #alarm_info = message.value
  85
  86                     if config_resp == None:
  87                         log.debug("Alarm Already exists")
  88                         payload = json.dumps(config_resp)
  89                         file = open('../../core/models/create_alarm_resp.json','wb').write((payload))
  90                         self.producer.publish_alarm_response(key='create_alarm_response',message=payload)
  91
  92                     else:
  93                         payload = json.dumps(config_resp)
  94                         file = open('../../core/models/create_alarm_resp.json','wb').write((payload))
  95                         self.producer.publish_alarm_response(key='create_alarm_response',message=payload)
  96                         log.info("New alarm created with alarm info: %s", config_resp)
  97
  98                 else:
  99                     log.error("Resource ID doesn't exists")
 100
 101             elif message.key == "acknowledge_alarm":
 102                 alarm_inner_dict = alarm_info['ack_details']
 103
 104                 if self.check_resource(alarm_inner_dict['resource_uuid']) == True:
 105                     alarm_info = json.loads(message.value)
 106                     #Generate a valid response message, send via producer
 107                     ack_details = self.get_ack_details(alarm_info)
 108                     payload = json.dumps(ack_details)
 109                     file = open('../../core/models/notify_alarm.json','wb').write((payload))
 110                     self.producer.notify_alarm(key='notify_alarm',message=payload)
 111                     log.info("Acknowledge sent: %s", ack_details)
 112
 113                 else:
 114                     log.error("Resource ID is Incorrect")
 115
 116
 117             elif message.key == "update_alarm_request":
 118                 alarm_inner_dict = alarm_info['alarm_update_request']
 119                 metric_status = self.check_metric(alarm_inner_dict['metric_name'])
 120
 121                 if metric_status['status'] == True:
 122                     log.debug ("Resource and Metrics exists")
 123                     alarm_info['alarm_update_request']['metric_name'] = metric_status['metric_name']
 124                     #Generate a valid response message, send via producer
 125                     update_resp = self.update_alarm_configuration(alarm_info)
 126
 127                     if update_resp == None:
 128                         payload = json.dumps(update_resp)
 129                         file = open('../../core/models/update_alarm_resp.json','wb').write((payload))
 130                         self.producer.update_alarm_response(key='update_alarm_response',message=payload)
 131                         log.debug("Alarm Already exists")
 132
 133                     else:
 134                         payload = json.dumps(update_resp)
 135                         file = open('../../core/models/update_alarm_resp.json','wb').write((payload))
 136                         self.producer.update_alarm_response(key='update_alarm_response',message=payload)
 137                         log.info("Alarm Updated with alarm info: %s", update_resp)
 138
 139                 else:
 140                     log.info ("Metric Not Supported")
 141
 142
 143             elif message.key == "delete_alarm_request":
 144                 del_info = json.loads(message.value)
 145                 #Generate a valid response message, send via producer
 146                 del_resp = self.delete_alarm(del_info)
 147                 payload = json.dumps(del_resp)
 148                 file = open('../../core/models/delete_alarm_resp.json','wb').write((payload))
 149                 self.producer.delete_alarm_response(key='delete_alarm_response',message=payload)
 150                 log.info("Alarm Deleted with alarm info: %s", del_resp)
 151
 152
 153             elif message.key == "alarm_list_request":
 154                 alarm_inner_dict = alarm_info['alarm_list_request']
 155
 156                 if self.check_resource(alarm_inner_dict['resource_uuid']) == True or alarm_inner_dict['resource_uuid'] == "":
 157                     #Generate a valid response message, send via producer
 158                     list_resp = self.get_alarms_list(alarm_info)#['alarm_names']
 159                     payload = json.dumps(list_resp)
 160                     file = open('../../core/models/list_alarm_resp.json','wb').write((payload))
 161                     self.producer.list_alarm_response(key='list_alarm_response',message=payload)
 162
 163                 else:
 164                     log.error("Resource ID is Incorrect")
 165
 166             else:
 167                 log.debug("Unknown key, no action will be performed")
 168
 169         except Exception as e:
 170                 log.error("Message retrieval exception: %s", str(e))
 171 #---------------------------------------------------------------------------------------------------------------------------
 172     def check_resource(self,resource_uuid):
 173         '''Finding Resource with the resource_uuid'''
 174         try:
 175             check_resp = dict()
 176             instances = self.ec2_conn.get_all_instance_status()
 177
 178             #resource_id
 179             for instance_id in instances:
 180                 instance_id = str(instance_id).split(':')[1]
 181
 182                 if instance_id == resource_uuid:
 183                     check_resp['resource_uuid'] = resource_uuid
 184                     return True
 185             return False
 186
 187         except Exception as e:
 188             log.error("Error in Plugin Inputs %s",str(e))
 189 #---------------------------------------------------------------------------------------------------------------------------
 190     def check_metric(self,metric_name):
 191         ''' Checking whether the metric is supported by AWS '''
 192         try:
 193             check_resp = dict()
 194
 195             #metric_name
 196             if metric_name == 'CPU_UTILIZATION':
 197                 metric_name = 'CPUUtilization'
 198                 metric_status = True
 199
 200             elif metric_name == 'DISK_READ_OPS':
 201                 metric_name = 'DiskReadOps'
 202                 metric_status = True
 203
 204             elif metric_name == 'DISK_WRITE_OPS':
 205                 metric_name = 'DiskWriteOps'
 206                 metric_status = True
 207
 208             elif metric_name == 'DISK_READ_BYTES':
 209                 metric_name = 'DiskReadBytes'
 210                 metric_status = True
 211
 212             elif metric_name == 'DISK_WRITE_BYTES':
 213                 metric_name = 'DiskWriteBytes'
 214                 metric_status = True
 215
 216             elif metric_name == 'PACKETS_RECEIVED':
 217                 metric_name = 'NetworkPacketsIn'
 218                 metric_status = True
 219
 220             elif metric_name == 'PACKETS_SENT':
 221                 metric_name = 'NetworkPacketsOut'
 222                 metric_status = True
 223
 224             else:
 225                 metric_name = None
 226                 metric_status = False
 227             check_resp['metric_name'] = metric_name
 228             #status
 229
 230             if metric_status == True:
 231                 check_resp['status'] = True
 232                 return check_resp
 233
 234         except Exception as e:
 235             log.error("Error in Plugin Inputs %s",str(e))
 236 #---------------------------------------------------------------------------------------------------------------------------