test/usecases/linkfailure/simulators/sdnc_simulator.py

   1
   2 #  ============LICENSE_START===============================================
   3 #  Copyright (C) 2021 Nordix Foundation. All rights reserved.
   4 #  ========================================================================
   5 #  Licensed under the Apache License, Version 2.0 (the "License");
   6 #  you may not use this file except in compliance with the License.
   7 #  You may obtain a copy of the License at
   8 #
   9 #       http://www.apache.org/licenses/LICENSE-2.0
  10 #
  11 #  Unless required by applicable law or agreed to in writing, software
  12 #  distributed under the License is distributed on an "AS IS" BASIS,
  13 #  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14 #  See the License for the specific language governing permissions and
  15 #  limitations under the License.
  16 #  ============LICENSE_END=================================================
  17 #
  18
  19 from flask import Flask
  20 from flask import Response
  21 import json
  22 import random
  23 import requests
  24 import threading
  25 import time
  26
  27 # Provides an endpoint for the "UNLOCK" configuration change for an O-DU.
  28 # Stores the ID of the O-DU and randomly, after between 0 and 10 seconds, sends an Alarm Notification that clears the
  29 # "CUS Link Failure" alarm event to MR.
  30 app = Flask(__name__)
  31
  32 MR_PATH = "http://localhost:3904/events/unauthenticated.SEC_FAULT_OUTPUT"
  33
  34 # Server info
  35 HOST_IP = "::"
  36 HOST_PORT = 9990
  37 APP_URL = "/rests/data/network-topology:network-topology/topology=topology-netconf/node=<string:o_du_id>/yang-ext:mount/o-ran-sc-du-hello-world:network-function/du-to-ru-connection=<string:o_ru_id>"
  38
  39 linkFailureMessage = {
  40     "event": {
  41         "commonEventHeader": {
  42             "domain": "fault",
  43             "eventId": "nt:network-topology/nt:topology/nt:node/nt:node-id",
  44             "eventName": "fault_O-RAN-RU-Fault_Alarms_CUS_Link_Failure",
  45             "eventType": "O-RAN-RU-Fault_Alarms",
  46             "sequence": 0,
  47             "priority": "High",
  48             "reportingEntityId": "SDNR",
  49             "reportingEntityName": "",
  50             "sourceId": "",
  51             "sourceName": "oru1",
  52             "startEpochMicrosec": "@timestamp@",
  53             "lastEpochMicrosec": "@timestamp@",
  54             "nfNamingCode": "",
  55             "nfVendorName": "ietf-hardware (RFC8348) /hardware/component[not(parent)][1]/mfg-name",
  56             "timeZoneOffset": "+00:00",
  57             "version": "4.1",
  58             "vesEventListenerVersion": "7.2.1"
  59         },
  60         "faultFields": {
  61             "faultFieldsVersion": "4.0",
  62             "alarmCondition": "30",
  63             "alarmInterfaceA": "o-ran-fm:alarm-notif/fault-source",
  64             "eventSourceType": "ietf-hardware (RFC8348) /hardware/component[not(parent)][1]/mfg-model or \"O-RU\"",
  65             "specificProblem": "",
  66             "eventSeverity": "NORMAL",
  67             "vfStatus": "Active",
  68             "alarmAdditionalInformation": {
  69                 "eventTime": "@eventTime@",
  70                 "equipType": "@type@",
  71                 "vendor": "@vendor@",
  72                 "model": "@model@"
  73             }
  74         }
  75     }
  76 }
  77
  78
  79 class AlarmClearThread (threading.Thread):
  80
  81     def __init__(self, sleep_time, o_ru_id):
  82         threading.Thread.__init__(self)
  83         self.sleep_time = sleep_time
  84         self.o_ru_id = o_ru_id
  85
  86     def run(self):
  87         print(f'Sleeping: {self.sleep_time} before clearing O-DU: {self.o_ru_id}')
  88         time.sleep(self.sleep_time)
  89         msg_as_json = json.loads(json.dumps(linkFailureMessage))
  90         msg_as_json["event"]["commonEventHeader"]["sourceName"] = self.o_ru_id
  91         print("Sedning alarm clear for O-RU: " + self.o_ru_id)
  92         requests.post(MR_PATH, json=msg_as_json);
  93
  94
  95 # I'm alive function
  96 @app.route('/',
  97     methods=['GET'])
  98 def index():
  99     return 'OK', 200
 100
 101
 102 @app.route(APP_URL,
 103     methods=['POST'])
 104 def sendrequest(o_du_id, o_ru_id):
 105     print("Got request with O-DU ID: " + o_du_id + " and O-RU ID: " + o_ru_id)
 106     random_time = int(10 * random.random())
 107     alarm_clear_thread = AlarmClearThread(random_time, o_ru_id)
 108     alarm_clear_thread.start()
 109
 110     return Response(status=201)
 111
 112
 113 if __name__ == "__main__":
 114     app.run(port=HOST_PORT, host=HOST_IP)