osm_mon/collector/collector.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 import multiprocessing
  25 import time
  26
  27 import peewee
  28
  29 from osm_mon.collector.backends.prometheus import PrometheusBackend
  30 from osm_mon.collector.infra_collectors.openstack import OpenstackInfraCollector
  31 from osm_mon.collector.vnf_collectors.juju import VCACollector
  32 from osm_mon.collector.vnf_collectors.openstack import OpenstackCollector
  33 from osm_mon.collector.vnf_collectors.vmware import VMwareCollector
  34 from osm_mon.core.common_db import CommonDbClient
  35 from osm_mon.core.config import Config
  36 from osm_mon.core.database import DatabaseManager
  37
  38 log = logging.getLogger(__name__)
  39
  40 VIM_COLLECTORS = {
  41     "openstack": OpenstackCollector,
  42     "vmware": VMwareCollector
  43 }
  44 VIM_INFRA_COLLECTORS = {
  45     "openstack": OpenstackInfraCollector
  46 }
  47 METRIC_BACKENDS = [
  48     PrometheusBackend
  49 ]
  50
  51
  52 class Collector:
  53     def __init__(self, config: Config):
  54         self.conf = config
  55         self.common_db = CommonDbClient(self.conf)
  56         self.plugins = []
  57         self.database_manager = DatabaseManager(self.conf)
  58         self.database_manager.create_tables()
  59         self.queue = multiprocessing.Queue()
  60         self._init_backends()
  61
  62     def collect_forever(self):
  63         log.debug('collect_forever')
  64         while True:
  65             try:
  66                 self.collect_metrics()
  67                 time.sleep(int(self.conf.get('collector', 'interval')))
  68             except peewee.PeeweeException:
  69                 log.exception("Database error consuming message: ")
  70                 raise
  71             except Exception:
  72                 log.exception("Error collecting metrics")
  73
  74     def _collect_vim_metrics(self, vnfr: dict, vim_account_id: str):
  75         # TODO(diazb) Add support for vrops and aws
  76         database_manager = DatabaseManager(self.conf)
  77         vim_type = database_manager.get_vim_type(vim_account_id)
  78         if vim_type in VIM_COLLECTORS:
  79             collector = VIM_COLLECTORS[vim_type](self.conf, vim_account_id)
  80             metrics = collector.collect(vnfr)
  81             for metric in metrics:
  82                 self.queue.put(metric)
  83         else:
  84             log.debug("vimtype %s is not supported.", vim_type)
  85
  86     def _collect_vim_infra_metrics(self, vim_account_id: str):
  87         database_manager = DatabaseManager(self.conf)
  88         vim_type = database_manager.get_vim_type(vim_account_id)
  89         if vim_type in VIM_INFRA_COLLECTORS:
  90             collector = VIM_INFRA_COLLECTORS[vim_type](self.conf, vim_account_id)
  91             metrics = collector.collect()
  92             for metric in metrics:
  93                 self.queue.put(metric)
  94         else:
  95             log.debug("vimtype %s is not supported.", vim_type)
  96
  97     def _collect_vca_metrics(self, vnfr: dict):
  98         log.debug('_collect_vca_metrics')
  99         log.debug('vnfr: %s', vnfr)
 100         vca_collector = VCACollector(self.conf)
 101         metrics = vca_collector.collect(vnfr)
 102         for metric in metrics:
 103             self.queue.put(metric)
 104
 105     def collect_metrics(self):
 106         vnfrs = self.common_db.get_vnfrs()
 107         processes = []
 108         for vnfr in vnfrs:
 109             nsr_id = vnfr['nsr-id-ref']
 110             vnf_member_index = vnfr['member-vnf-index-ref']
 111             vim_account_id = self.common_db.get_vim_account_id(nsr_id, vnf_member_index)
 112             p = multiprocessing.Process(target=self._collect_vim_metrics,
 113                                         args=(vnfr, vim_account_id))
 114             processes.append(p)
 115             p.start()
 116             p = multiprocessing.Process(target=self._collect_vca_metrics,
 117                                         args=(vnfr,))
 118             processes.append(p)
 119             p.start()
 120         vims = self.common_db.get_vim_accounts()
 121         for vim in vims:
 122             p = multiprocessing.Process(target=self._collect_vim_infra_metrics,
 123                                         args=(vim['_id'],))
 124             processes.append(p)
 125             p.start()
 126         for process in processes:
 127             process.join(timeout=10)
 128         metrics = []
 129         while not self.queue.empty():
 130             metrics.append(self.queue.get())
 131         for plugin in self.plugins:
 132             plugin.handle(metrics)
 133
 134     def _init_backends(self):
 135         for backend in METRIC_BACKENDS:
 136             self.plugins.append(backend())