osm_mon/server/service.py

   1 # -*- coding: utf-8 -*-
   2
   3 # Copyright 2018 Whitestack, LLC
   4 # *************************************************************
   5
   6 # This file is part of OSM Monitoring module
   7 # All Rights Reserved to Whitestack, LLC
   8
   9 # Licensed under the Apache License, Version 2.0 (the "License"); you may
  10 # not use this file except in compliance with the License. You may obtain
  11 # a copy of the License at
  12
  13 #         http://www.apache.org/licenses/LICENSE-2.0
  14
  15 # Unless required by applicable law or agreed to in writing, software
  16 # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  17 # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  18 # License for the specific language governing permissions and limitations
  19 # under the License.
  20 # For those usages not covered by the Apache License, Version 2.0 please
  21 # contact: bdiaz@whitestack.com or glavado@whitestack.com
  22 ##
  23 import logging
  24
  25 from osm_mon.core.common_db import CommonDbClient
  26 from osm_mon.core.config import Config
  27 from osm_mon.core.models import Alarm
  28
  29 log = logging.getLogger(__name__)
  30
  31
  32 class ServerService:
  33     def __init__(self, config: Config):
  34         self.common_db = CommonDbClient(config)
  35
  36     def create_alarm(
  37         self,
  38         name: str,
  39         threshold: float,
  40         operation: str,
  41         severity: str,
  42         statistic: str,
  43         metric_name: str,
  44         action: str,
  45         tags: dict,
  46     ) -> Alarm:
  47         log.debug("create_alarm")
  48         alarm = Alarm(
  49             name, severity, threshold, operation, statistic, metric_name, action, tags
  50         )
  51         self.common_db.create_alarm(alarm)
  52         log.info("Alarm %s created", alarm.name)
  53         return alarm
  54
  55     def delete_alarm(self, alarm_uuid: str) -> None:
  56         log.debug("delete_alarm")
  57         self.common_db.delete_alarm(alarm_uuid)
  58         log.info("Alarm %s is deleted", alarm_uuid)
  59
  60     def populate_prometheus(self):
  61         # This method can be executed infinite number of times
  62         # without side-effects.
  63         self.common_db.common_db.set_one(
  64             "prometheus_jobs", {"job_name": "mon_exporter"}, {
  65                 "job_name": "mon_exporter",
  66                 "static_configs": [
  67                     {
  68                         "targets": [
  69                             "mon:8000"
  70                         ]
  71                     }
  72                 ]
  73             },
  74             fail_on_empty=False,
  75             upsert=True
  76         )