osm_mon/collector/vnf_collectors/openstack.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 datetime
  23 import json
  24 import logging
  25 from typing import List
  26
  27 import gnocchiclient.exceptions
  28 from gnocchiclient.v1 import client as gnocchi_client
  29 from ceilometerclient.v2 import client as ceilometer_client
  30 from keystoneauth1 import session
  31 from keystoneauth1.exceptions import EndpointNotFound
  32 from keystoneauth1.identity import v3
  33
  34 from osm_mon.collector.metric import Metric
  35 from osm_mon.collector.vnf_collectors.base_vim import BaseVimCollector
  36 from osm_mon.collector.vnf_metric import VnfMetric
  37 from osm_mon.core.auth import AuthManager
  38 from osm_mon.core.common_db import CommonDbClient
  39 from osm_mon.core.config import Config
  40
  41 log = logging.getLogger(__name__)
  42
  43 METRIC_MAPPINGS = {
  44     "average_memory_utilization": "memory.usage",
  45     "disk_read_ops": "disk.read.requests.rate",
  46     "disk_write_ops": "disk.write.requests.rate",
  47     "disk_read_bytes": "disk.read.bytes.rate",
  48     "disk_write_bytes": "disk.write.bytes.rate",
  49     "packets_in_dropped": "network.outgoing.packets.drop",
  50     "packets_out_dropped": "network.incoming.packets.drop",
  51     "packets_received": "network.incoming.packets.rate",
  52     "packets_sent": "network.outgoing.packets.rate",
  53     "cpu_utilization": "cpu_util",
  54 }
  55
  56 INTERFACE_METRICS = ['packets_in_dropped', 'packets_out_dropped', 'packets_received', 'packets_sent']
  57
  58
  59 class OpenstackCollector(BaseVimCollector):
  60     def __init__(self, config: Config, vim_account_id: str):
  61         super().__init__(config, vim_account_id)
  62         self.conf = config
  63         self.common_db = CommonDbClient(config)
  64         self.auth_manager = AuthManager(config)
  65         self.granularity = self._get_granularity(vim_account_id)
  66         self.backend = self._get_backend(vim_account_id)
  67         self.client = self._build_client(vim_account_id)
  68
  69     def _get_resource_uuid(self, nsr_id, vnf_member_index, vdur_name) -> str:
  70         vdur = self.common_db.get_vdur(nsr_id, vnf_member_index, vdur_name)
  71         return vdur['vim-id']
  72
  73     def _build_gnocchi_client(self, vim_account_id: str) -> gnocchi_client.Client:
  74         creds = self.auth_manager.get_credentials(vim_account_id)
  75         verify_ssl = self.auth_manager.is_verify_ssl(vim_account_id)
  76         auth = v3.Password(auth_url=creds.url,
  77                            username=creds.user,
  78                            password=creds.password,
  79                            project_name=creds.tenant_name,
  80                            project_domain_id='default',
  81                            user_domain_id='default')
  82         sess = session.Session(auth=auth, verify=verify_ssl)
  83         return gnocchi_client.Client(session=sess)
  84
  85     def _build_ceilometer_client(self, vim_account_id: str) -> ceilometer_client.Client:
  86         creds = self.auth_manager.get_credentials(vim_account_id)
  87         verify_ssl = self.auth_manager.is_verify_ssl(vim_account_id)
  88         auth = v3.Password(auth_url=creds.url,
  89                            username=creds.user,
  90                            password=creds.password,
  91                            project_name=creds.tenant_name,
  92                            project_domain_id='default',
  93                            user_domain_id='default')
  94         sess = session.Session(auth=auth, verify=verify_ssl)
  95         return ceilometer_client.Client(session=sess)
  96
  97     def _get_granularity(self, vim_account_id: str):
  98         creds = self.auth_manager.get_credentials(vim_account_id)
  99         vim_config = json.loads(creds.config)
 100         if 'granularity' in vim_config:
 101             return int(vim_config['granularity'])
 102         else:
 103             return int(self.conf.get('openstack', 'default_granularity'))
 104
 105     def collect(self, vnfr: dict) -> List[Metric]:
 106         nsr_id = vnfr['nsr-id-ref']
 107         vnf_member_index = vnfr['member-vnf-index-ref']
 108         vnfd = self.common_db.get_vnfd(vnfr['vnfd-id'])
 109         metrics = []
 110         for vdur in vnfr['vdur']:
 111             # This avoids errors when vdur records have not been completely filled
 112             if 'name' not in vdur:
 113                 continue
 114             vdu = next(
 115                 filter(lambda vdu: vdu['id'] == vdur['vdu-id-ref'], vnfd['vdu'])
 116             )
 117             if 'monitoring-param' in vdu:
 118                 for param in vdu['monitoring-param']:
 119                     metric_name = param['nfvi-metric']
 120                     openstack_metric_name = METRIC_MAPPINGS[metric_name]
 121                     try:
 122                         resource_id = self._get_resource_uuid(nsr_id, vnf_member_index, vdur['name'])
 123                     except ValueError:
 124                         log.warning(
 125                             "Could not find resource_uuid for vdur %s, vnf_member_index %s, nsr_id %s. "
 126                             "Was it recently deleted?".format(
 127                                 vdur['name'], vnf_member_index, nsr_id))
 128                         continue
 129                     if self.backend == 'ceilometer':
 130                         measures = self.client.samples.list(meter_name=openstack_metric_name, limit=1, q=[
 131                             {'field': 'resource_id', 'op': 'eq', 'value': resource_id}])
 132                         if len(measures):
 133                             metric = VnfMetric(nsr_id, vnf_member_index, vdur['name'], metric_name,
 134                                                measures[0].counter_volume)
 135                             metrics.append(metric)
 136                     elif self.backend == 'gnocchi':
 137                         delta = 10 * self.granularity
 138                         start_date = datetime.datetime.now() - datetime.timedelta(seconds=delta)
 139                         if metric_name in INTERFACE_METRICS:
 140                             total_measure = 0.0
 141                             interfaces = self.client.resource.search(resource_type='instance_network_interface',
 142                                                                      query={'=': {'instance_id': resource_id}})
 143                             for interface in interfaces:
 144                                 try:
 145                                     measures = self.client.metric.get_measures(openstack_metric_name,
 146                                                                                start=start_date,
 147                                                                                resource_id=interface['id'],
 148                                                                                granularity=self.granularity)
 149                                     if len(measures):
 150                                         total_measure += measures[-1][2]
 151
 152                                 except gnocchiclient.exceptions.NotFound as e:
 153                                     log.debug("No metric %s found for interface %s: %s", openstack_metric_name,
 154                                               interface['id'], e)
 155                             metric = VnfMetric(nsr_id, vnf_member_index, vdur['name'], metric_name,
 156                                                total_measure)
 157                             metrics.append(metric)
 158                         else:
 159                             try:
 160                                 measures = self.client.metric.get_measures(openstack_metric_name,
 161                                                                            start=start_date,
 162                                                                            resource_id=resource_id,
 163                                                                            granularity=self.granularity)
 164                                 if len(measures):
 165                                     metric = VnfMetric(nsr_id, vnf_member_index, vdur['name'], metric_name,
 166                                                        measures[-1][2])
 167                                     metrics.append(metric)
 168                             except gnocchiclient.exceptions.NotFound as e:
 169                                 log.debug("No metric %s found for instance %s: %s", openstack_metric_name, resource_id,
 170                                           e)
 171
 172                     else:
 173                         raise Exception('Unknown metric backend: %s', self.backend)
 174         return metrics
 175
 176     def _build_client(self, vim_account_id):
 177         if self.backend == 'ceilometer':
 178             return self._build_ceilometer_client(vim_account_id)
 179         elif self.backend == 'gnocchi':
 180             return self._build_gnocchi_client(vim_account_id)
 181         else:
 182             raise Exception('Unknown metric backend: %s', self.backend)
 183
 184     def _get_backend(self, vim_account_id):
 185         try:
 186             gnocchi = self._build_gnocchi_client(vim_account_id)
 187             gnocchi.resource.list(limit=1)
 188             return 'gnocchi'
 189         except EndpointNotFound:
 190             try:
 191                 ceilometer = self._build_ceilometer_client(vim_account_id)
 192                 ceilometer.resources.list(limit=1)
 193                 return 'ceilometer'
 194             except Exception:
 195                 log.exception('Error trying to determine metric backend')
 196                 raise Exception('Could not determine metric backend')