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