osm_mon/collector/collectors/juju.py

   1 # Copyright 2018 Whitestack, LLC
   2 # *************************************************************
   3
   4 # This file is part of OSM Monitoring module
   5 # All Rights Reserved to Whitestack, LLC
   6
   7 # Licensed under the Apache License, Version 2.0 (the "License"); you may
   8 # not use this file except in compliance with the License. You may obtain
   9 # a copy of the License at
  10
  11 #         http://www.apache.org/licenses/LICENSE-2.0
  12
  13 # Unless required by applicable law or agreed to in writing, software
  14 # distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  15 # WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  16 # License for the specific language governing permissions and limitations
  17 # under the License.
  18
  19 # For those usages not covered by the Apache License, Version 2.0 please
  20 # contact: bdiaz@whitestack.com or glavado@whitestack.com
  21 ##
  22 import asyncio
  23 import logging
  24 from typing import List
  25
  26 from n2vc.vnf import N2VC
  27
  28 from osm_mon.collector.collectors.base import BaseCollector
  29 from osm_mon.collector.metric import Metric
  30 from osm_mon.core.common_db import CommonDbClient
  31 from osm_mon.core.exceptions import VcaDeploymentInfoNotFound
  32 from osm_mon.core.settings import Config
  33
  34 log = logging.getLogger(__name__)
  35
  36
  37 class VCACollector(BaseCollector):
  38     def __init__(self):
  39         cfg = Config.instance()
  40         self.common_db = CommonDbClient()
  41         self.loop = asyncio.get_event_loop()
  42         self.n2vc = N2VC(server=cfg.OSMMON_VCA_HOST, user=cfg.OSMMON_VCA_USER, secret=cfg.OSMMON_VCA_SECRET)
  43
  44     def collect(self, vnfr: dict) -> List[Metric]:
  45         nsr_id = vnfr['nsr-id-ref']
  46         vnf_member_index = vnfr['member-vnf-index-ref']
  47         vnfd = self.common_db.get_vnfd(vnfr['vnfd-id'])
  48         metrics = []
  49         for vdur in vnfr['vdur']:
  50             # This avoids errors when vdur records have not been completely filled
  51             if 'name' not in vdur:
  52                 continue
  53             vdu = next(
  54                 filter(lambda vdu: vdu['id'] == vdur['vdu-id-ref'], vnfd['vdu'])
  55             )
  56             if 'vdu-configuration' in vdu and 'metrics' in vdu['vdu-configuration']:
  57                 try:
  58                     vca_deployment_info = self.get_vca_deployment_info(nsr_id, vnf_member_index, vdur['name'])
  59                 except VcaDeploymentInfoNotFound:
  60                     continue
  61                 measures = self.loop.run_until_complete(self.n2vc.GetMetrics(vca_deployment_info['model'],
  62                                                                              vca_deployment_info['application']))
  63                 log.debug('Measures: %s', measures)
  64                 for measure_list in measures.values():
  65                     for measure in measure_list:
  66                         log.debug("Measure: %s", measure)
  67                         metric = Metric(nsr_id, vnf_member_index, vdur['name'], measure['key'], float(measure['value']))
  68                         metrics.append(metric)
  69         if 'vnf-configuration' in vnfd and 'metrics' in vnfd['vnf-configuration']:
  70             try:
  71                 vca_deployment_info = self.get_vca_deployment_info(nsr_id, vnf_member_index, None)
  72             except VcaDeploymentInfoNotFound:
  73                 return metrics
  74             measures = self.loop.run_until_complete(self.n2vc.GetMetrics(vca_deployment_info['model'],
  75                                                                          vca_deployment_info['application']))
  76             log.debug('Measures: %s', measures)
  77             for measure_list in measures.values():
  78                 for measure in measure_list:
  79                     log.debug("Measure: %s", measure)
  80                     metric = Metric(nsr_id, vnf_member_index, '', measure['key'], float(measure['value']))
  81                     metrics.append(metric)
  82         return metrics
  83
  84     def get_vca_deployment_info(self, nsr_id, vnf_member_index, vdur_name):
  85         nsr = self.common_db.get_nsr(nsr_id)
  86         for vca_deployment in nsr["_admin"]["deployed"]["VCA"]:
  87             if vca_deployment:
  88                 if vca_deployment['member-vnf-index'] == vnf_member_index and vca_deployment['vdu_name'] == vdur_name:
  89                     return vca_deployment
  90         raise VcaDeploymentInfoNotFound("VCA deployment info for nsr_id {}, index {} and vdur_name {} not found."
  91                                         .format(nsr_id, vnf_member_index, vdur_name))