osm_mon/dashboarder/dashboarder.py

   1 # -*- coding: utf-8 -*-
   2
   3 # Copyright 2021 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: fbravo@whitestack.com or glavado@whitestack.com
  22 ##
  23
  24 import logging
  25 import time
  26 import socket
  27 import asyncio
  28
  29 from osm_mon.dashboarder.service import DashboarderService
  30 from osm_mon.core.config import Config
  31 from osm_mon.core.message_bus_client import MessageBusClient
  32
  33 log = logging.getLogger(__name__)
  34
  35
  36 class Dashboarder:
  37     def __init__(self, config: Config, loop=None):
  38         self.conf = config
  39         self.service = DashboarderService(config)
  40         if not loop:
  41             loop = asyncio.get_event_loop()
  42         self.loop = loop
  43         self.msg_bus = MessageBusClient(config)
  44
  45     # run consumer for grafana user management
  46     def run(self):
  47         self.loop.run_until_complete(self.start())
  48
  49     async def start(self):
  50         topics = ["users", "project"]
  51         try:
  52             await self.msg_bus.aioread(topics, self._user_msg)
  53         except Exception as e:
  54             # Failed to subscribe to kafka topics
  55             log.error("Error when subscribing to topics %s", str(topics))
  56             log.exception("Exception %s", str(e))
  57
  58     async def _user_msg(self, topic, key, values):
  59         log.debug("Message from kafka bus received: topic: %s and values: %s and key: %s", topic, values, key)
  60         try:
  61             if topic == "users" and key == "created":
  62                 log.debug("Received message from kafka for creating user")
  63                 if values.get('username'):
  64                     user = values['username']
  65                 else:
  66                     user = values['changes']['username']
  67                 self.service.create_grafana_user(user)
  68                 # user-created and mapping is done with osm cli
  69                 if values.get('changes'):
  70                     # user-project-role mapping is included in change
  71                     if values['changes'].get('project_role_mappings'):
  72                         user_id = values["_id"]
  73                         project_data = values["changes"]["project_role_mappings"]
  74                         project_list = values["changes"].get("projects")
  75                         self.service.create_grafana_team_member(project_data, user_id, project_list)
  76                 elif values.get('project_role_mappings'):
  77                     # for fresh project-role-mapping
  78                     user_id = values.get("_id")
  79                     project_data = values["project_role_mappings"]
  80                     if user_id:
  81                         self.service.create_grafana_team_member(project_data, user_id)
  82                     else:
  83                         # for keystone we will get username
  84                         self.service.create_grafana_team_member(project_data, user=values['username'])
  85             elif topic == "users" and key == "deleted":
  86                 log.debug("Received message from kafka for deleting user")
  87                 user = values['username']
  88                 self.service.delete_grafana_user(user)
  89             elif topic == "users" and key == "edited":
  90                 log.debug("Received message from kafka for associating user to team")
  91                 user_id = values["_id"]
  92                 if values["changes"].get("remove_project_role_mappings") and not \
  93                         values["changes"].get("add_project_role_mappings"):
  94                     # Removing user-project role mapping
  95                     self.service.remove_grafana_team_members(user_id,
  96                                                              values["changes"].get("remove_project_role_mappings"))
  97                 else:
  98                     # Changing user project role mapping
  99                     if values["changes"].get("project_role_mappings"):
 100                         project_data = values["changes"]["project_role_mappings"]
 101                     else:
 102                         project_data = values["changes"]["add_project_role_mappings"]
 103                     self.service.create_grafana_team_member(project_data, user_id)
 104             elif topic == "project" and key == "created":
 105                 log.debug("Received message from kafka for creating team")
 106                 team_name = values["name"]
 107                 self.service.create_grafana_team(team_name)
 108             elif topic == "project" and key == "deleted":
 109                 log.debug("Received message from kafka for deleting team")
 110                 project_name = values["name"]
 111                 self.service.delete_grafana_team(project_name)
 112             elif topic == "project" and key == "edited":
 113                 log.debug("Received message from kafka for team name update")
 114                 project_old_name = values["original"]["name"]
 115                 project_new_name = values["changes"]["name"]
 116                 self.service.update_grafana_team(project_new_name, project_old_name)
 117         except Exception:
 118             log.exception("Exception processing message: ")
 119
 120     def dashboard_forever(self):
 121         log.debug('dashboard_forever')
 122         while True:
 123             try:
 124                 socket.gethostbyname("grafana")
 125                 log.debug("Dashboard backend is running")
 126             except socket.error:
 127                 log.debug("Dashboard backend is not available")
 128                 time.sleep(int(self.conf.get('dashboarder', 'interval')))
 129                 continue
 130             try:
 131                 self.create_dashboards()
 132                 time.sleep(int(self.conf.get('dashboarder', 'interval')))
 133             except Exception:
 134                 log.exception("Error creating dashboards")
 135
 136     def create_dashboards(self):
 137         self.service.create_dashboards()
 138         log.debug('Dashboarder Service > create_dashboards called!')