# For those usages not covered by the Apache License, Version 2.0 please
# contact: bdiaz@whitestack.com or glavado@whitestack.com
##
-import json
import logging
-import random
-import uuid
-from collections import Iterable
+import time
-from kafka import KafkaProducer, KafkaConsumer
-from osm_common import dbmongo
-from prometheus_client.core import GaugeMetricFamily
-
-from osm_mon.core.settings import Config
+from osm_mon.collector.backends.prometheus import PrometheusBackend
+from osm_mon.collector.service import CollectorService
+from osm_mon.core.config import Config
log = logging.getLogger(__name__)
-
-class MonCollector:
- def __init__(self):
- cfg = Config.instance()
- self.kafka_server = cfg.BROKER_URI
- self.common_db_host = cfg.MONGO_URI.split(':')[0]
- self.common_db_port = cfg.MONGO_URI.split(':')[1]
- self.common_db = dbmongo.DbMongo()
- self.common_db.db_connect({'host': self.common_db_host, 'port': int(self.common_db_port), 'name': 'osm'})
- self.producer = KafkaProducer(bootstrap_servers=self.kafka_server,
- key_serializer=str.encode,
- value_serializer=str.encode)
- self.consumer = KafkaConsumer(bootstrap_servers=self.kafka_server,
- key_deserializer=bytes.decode,
- value_deserializer=bytes.decode,
- consumer_timeout_ms=10000,
- group_id='mon-collector-' + str(uuid.uuid4()))
- self.consumer.subscribe(['metric_response'])
-
- def collect_metrics(self) -> Iterable:
- # TODO(diazb): Remove dependencies on prometheus_client
- log.debug("collect_metrics")
- metrics = {}
- vnfrs = self.common_db.get_list('vnfrs')
- for vnfr in vnfrs:
- nsr_id = vnfr['nsr-id-ref']
- vnfd = self.common_db.get_one('vnfds', {"_id": vnfr['vnfd-id']})
- payloads = self._generate_metric_data_payloads(vnfr, vnfd)
- for payload in payloads:
- cor_id = payload['correlation_id']
- metric_name = payload['metric_name']
- vnf_member_index = payload['vnf_member_index']
- vdu_name = payload['vdu_name']
- self.producer.send(topic='metric_request', key='read_metric_data_request',
- value=json.dumps(payload))
- self.producer.flush()
- for message in self.consumer:
- if message.key == 'read_metric_data_response':
- content = json.loads(message.value)
- if content['correlation_id'] == cor_id:
- if len(content['metrics_data']['metrics_series']):
- metric_reading = content['metrics_data']['metrics_series'][-1]
- if metric_name not in metrics.keys():
- metrics[metric_name] = GaugeMetricFamily(
- metric_name,
- 'OSM metric',
- labels=['ns_id', 'vnf_member_index', 'vdu_name']
- )
- metrics[metric_name].add_metric([nsr_id, vnf_member_index, vdu_name],
- metric_reading)
- break
- return metrics.values()
-
- @staticmethod
- def _generate_metric_data_payloads(vnfr: dict, vnfd: dict) -> list:
- log.debug('_generate_metric_data_payloads')
- payloads = []
- nsr_id = vnfr['nsr-id-ref']
- for vdur in vnfr['vdur']:
- # This avoids errors when vdur records have not been completely filled
- if 'name' not in vdur:
- continue
- vdu = next(
- filter(lambda vdu: vdu['id'] == vdur['vdu-id-ref'], vnfd['vdu'])
- )
- if 'monitoring-param' in vdu:
- for param in vdu['monitoring-param']:
- metric_name = param['nfvi-metric']
- vnf_member_index = vnfr['member-vnf-index-ref']
- vdu_name = vdur['name']
- cor_id = random.randint(1, 10e7)
- payload = {
- 'correlation_id': cor_id,
- 'metric_name': metric_name,
- 'ns_id': nsr_id,
- 'vnf_member_index': vnf_member_index,
- 'vdu_name': vdu_name,
- 'collection_period': 1,
- 'collection_unit': 'DAY',
- }
- payloads.append(payload)
- return payloads
+METRIC_BACKENDS = [
+ PrometheusBackend
+]
+
+
+class Collector:
+ def __init__(self, config: Config):
+ self.conf = config
+ self.service = CollectorService(config)
+ self.backends = []
+ self._init_backends()
+
+ def collect_forever(self):
+ log.debug('collect_forever')
+ while True:
+ try:
+ self.collect_metrics()
+ time.sleep(int(self.conf.get('collector', 'interval')))
+ except Exception:
+ log.exception("Error collecting metrics")
+
+ def collect_metrics(self):
+ metrics = self.service.collect_metrics()
+ for backend in self.backends:
+ backend.handle(metrics)
+
+ def _init_backends(self):
+ for backend in METRIC_BACKENDS:
+ self.backends.append(backend())
projects / osm / MON.git / blobdiff