def create_alarm(self, metric_name: str, ns_id: str, vdu_name: str, vnf_member_index: int, threshold: int,
statistic: str, operation: str):
cor_id = random.randint(1, 1000000)
- msg = self._create_alarm_payload(cor_id, metric_name, ns_id, vdu_name, vnf_member_index, threshold, statistic,
- operation)
+ msg = self._build_create_alarm_payload(cor_id, metric_name, ns_id, vdu_name, vnf_member_index, threshold,
+ statistic,
+ operation)
log.info("Sending create_alarm_request %s", msg)
self.producer.send(topic='alarm_request', key='create_alarm_request', value=json.dumps(msg))
self.producer.flush()
content = json.loads(message.value)
log.info("Received create_alarm_response %s", content)
if self._is_alarm_response_correlation_id_eq(cor_id, content):
+ if not content['alarm_create_response']['status']:
+ raise ValueError("Error creating alarm in MON")
alarm_uuid = content['alarm_create_response']['alarm_uuid']
- # TODO Handle error response
return alarm_uuid
raise ValueError('Timeout: No alarm creation response from MON. Is MON up?')
- def _create_alarm_payload(self, cor_id: int, metric_name: str, ns_id: str, vdu_name: str, vnf_member_index: int,
- threshold: int, statistic: str, operation: str):
+ def delete_alarm(self, ns_id: str, vnf_member_index: int, vdu_name: str, alarm_uuid: str):
+ cor_id = random.randint(1, 1000000)
+ msg = self._build_delete_alarm_payload(cor_id, ns_id, vdu_name, vnf_member_index, alarm_uuid)
+ log.info("Sending delete_alarm_request %s", msg)
+ self.producer.send(topic='alarm_request', key='delete_alarm_request', value=json.dumps(msg))
+ self.producer.flush()
+ consumer = KafkaConsumer(bootstrap_servers=self.kafka_server,
+ key_deserializer=bytes.decode,
+ value_deserializer=bytes.decode,
+ consumer_timeout_ms=10000)
+ consumer.subscribe(['alarm_response'])
+ for message in consumer:
+ if message.key == 'delete_alarm_response':
+ content = json.loads(message.value)
+ log.info("Received delete_alarm_response %s", content)
+ if self._is_alarm_response_correlation_id_eq(cor_id, content):
+ if not content['alarm_delete_response']['status']:
+ raise ValueError("Error deleting alarm in MON")
+ alarm_uuid = content['alarm_delete_response']['alarm_uuid']
+ return alarm_uuid
+
+ raise ValueError('Timeout: No alarm creation response from MON. Is MON up?')
+
+ def _build_create_alarm_payload(self, cor_id: int, metric_name: str, ns_id: str, vdu_name: str,
+ vnf_member_index: int,
+ threshold: int, statistic: str, operation: str):
alarm_create_request = {
'correlation_id': cor_id,
'alarm_name': str(uuid.uuid4()),
}
return msg
+ def _build_delete_alarm_payload(self, cor_id: int, ns_id: str, vdu_name: str,
+ vnf_member_index: int, alarm_uuid: str):
+ alarm_delete_request = {
+ 'correlation_id': cor_id,
+ 'alarm_uuid': alarm_uuid,
+ 'ns_id': ns_id,
+ 'vdu_name': vdu_name,
+ 'vnf_member_index': vnf_member_index
+ }
+ msg = {
+ 'alarm_delete_request': alarm_delete_request,
+ }
+ return msg
+
def _is_alarm_response_correlation_id_eq(self, cor_id, message_content):
return message_content['alarm_create_response']['correlation_id'] == cor_id
def _configure_scaling_groups(self, nsr_id: str):
log.debug("_configure_scaling_groups: %s", nsr_id)
- # TODO(diazb): Check for alarm creation on exception and clean resources if needed.
# TODO: Add support for non-nfvi metrics
+ alarms_created = []
with database.db.atomic():
- vnfrs = self.db_client.get_vnfrs(nsr_id)
- log.info("Found %s vnfrs", len(vnfrs))
- for vnfr in vnfrs:
- vnfd = self.db_client.get_vnfd(vnfr['vnfd-id'])
- log.info("Looking for vnfd %s", vnfr['vnfd-id'])
- scaling_groups = vnfd['scaling-group-descriptor']
- vnf_monitoring_params = vnfd['monitoring-param']
- for scaling_group in scaling_groups:
- try:
- scaling_group_record = ScalingGroup.select().where(
- ScalingGroup.nsr_id == nsr_id,
- ScalingGroup.vnf_member_index == vnfr['member-vnf-index-ref'],
- ScalingGroup.name == scaling_group['name']
- ).get()
- log.info("Found existing scaling group record in DB...")
- except ScalingGroup.DoesNotExist:
- log.info("Creating scaling group record in DB...")
- scaling_group_record = ScalingGroup.create(
- nsr_id=nsr_id,
- vnf_member_index=vnfr['member-vnf-index-ref'],
- name=scaling_group['name'],
- content=json.dumps(scaling_group)
- )
- log.info(
- "Created scaling group record in DB : nsr_id=%s, vnf_member_index=%d, name=%s, content=%s",
- scaling_group_record.nsr_id,
- scaling_group_record.vnf_member_index,
- scaling_group_record.name,
- scaling_group_record.content)
- for scaling_policy in scaling_group['scaling-policy']:
- if scaling_policy['scaling-type'] != 'automatic':
- continue
- try:
- scaling_policy_record = ScalingPolicy.select().join(ScalingGroup).where(
- ScalingPolicy.name == scaling_policy['name'],
- ScalingGroup.id == scaling_group_record.id
- ).get()
- log.info("Found existing scaling policy record in DB...")
- except ScalingPolicy.DoesNotExist:
- log.info("Creating scaling policy record in DB...")
- scaling_policy_record = ScalingPolicy.create(
- nsr_id=nsr_id,
- name=scaling_policy['name'],
- cooldown_time=scaling_policy['cooldown-time'],
- scaling_group=scaling_group_record
- )
- log.info("Created scaling policy record in DB : name=%s, scaling_group.name=%s",
- scaling_policy_record.name,
- scaling_policy_record.scaling_group.name)
-
- for scaling_criteria in scaling_policy['scaling-criteria']:
+ try:
+ with database.db.atomic():
+ vnfrs = self.db_client.get_vnfrs(nsr_id)
+ log.info("Found %s vnfrs", len(vnfrs))
+ for vnfr in vnfrs:
+ vnfd = self.db_client.get_vnfd(vnfr['vnfd-id'])
+ log.info("Looking for vnfd %s", vnfr['vnfd-id'])
+ scaling_groups = vnfd['scaling-group-descriptor']
+ vnf_monitoring_params = vnfd['monitoring-param']
+ for scaling_group in scaling_groups:
try:
- scaling_criteria_record = ScalingCriteria.select().join(ScalingPolicy).where(
- ScalingPolicy.id == scaling_policy_record.id,
- ScalingCriteria.name == scaling_criteria['name']
+ scaling_group_record = ScalingGroup.select().where(
+ ScalingGroup.nsr_id == nsr_id,
+ ScalingGroup.vnf_member_index == int(vnfr['member-vnf-index-ref']),
+ ScalingGroup.name == scaling_group['name']
).get()
- log.info("Found existing scaling criteria record in DB...")
- except ScalingCriteria.DoesNotExist:
- log.info("Creating scaling criteria record in DB...")
- scaling_criteria_record = ScalingCriteria.create(
+ log.info("Found existing scaling group record in DB...")
+ except ScalingGroup.DoesNotExist:
+ log.info("Creating scaling group record in DB...")
+ scaling_group_record = ScalingGroup.create(
nsr_id=nsr_id,
- name=scaling_criteria['name'],
- scaling_policy=scaling_policy_record
+ vnf_member_index=vnfr['member-vnf-index-ref'],
+ name=scaling_group['name'],
+ content=json.dumps(scaling_group)
)
log.info(
- "Created scaling criteria record in DB : name=%s, scaling_policy.name=%s",
- scaling_criteria_record.name,
- scaling_criteria_record.scaling_policy.name)
-
- for vdu_ref in scaling_group['vdu']:
- vnf_monitoring_param = next(
- filter(lambda param: param['id'] == scaling_criteria['vnf-monitoring-param-ref'],
- vnf_monitoring_params))
- if not vdu_ref['vdu-id-ref'] == vnf_monitoring_param['vdu-ref']:
+ "Created scaling group record in DB : nsr_id=%s, vnf_member_index=%s, name=%s",
+ scaling_group_record.nsr_id,
+ scaling_group_record.vnf_member_index,
+ scaling_group_record.name)
+ for scaling_policy in scaling_group['scaling-policy']:
+ if scaling_policy['scaling-type'] != 'automatic':
continue
- vdu = next(
- filter(lambda vdu: vdu['id'] == vdu_ref['vdu-id-ref'], vnfd['vdu'])
- )
- vdu_monitoring_params = vdu['monitoring-param']
- vdu_monitoring_param = next(
- filter(
- lambda param: param['id'] == vnf_monitoring_param['vdu-monitoring-param-ref'],
- vdu_monitoring_params))
- vdurs = list(filter(lambda vdur: vdur['vdu-id-ref'] == vnf_monitoring_param['vdu-ref'],
- vnfr['vdur']))
- for vdur in vdurs:
+ try:
+ scaling_policy_record = ScalingPolicy.select().join(ScalingGroup).where(
+ ScalingPolicy.name == scaling_policy['name'],
+ ScalingGroup.id == scaling_group_record.id
+ ).get()
+ log.info("Found existing scaling policy record in DB...")
+ except ScalingPolicy.DoesNotExist:
+ log.info("Creating scaling policy record in DB...")
+ scaling_policy_record = ScalingPolicy.create(
+ nsr_id=nsr_id,
+ name=scaling_policy['name'],
+ cooldown_time=scaling_policy['cooldown-time'],
+ scaling_group=scaling_group_record
+ )
+ log.info("Created scaling policy record in DB : name=%s, scaling_group.name=%s",
+ scaling_policy_record.name,
+ scaling_policy_record.scaling_group.name)
+
+ for scaling_criteria in scaling_policy['scaling-criteria']:
try:
- ScalingAlarm.select().join(ScalingCriteria).where(
- ScalingAlarm.vdu_name == vdur['name'],
+ scaling_criteria_record = ScalingCriteria.select().join(ScalingPolicy).where(
+ ScalingPolicy.id == scaling_policy_record.id,
ScalingCriteria.name == scaling_criteria['name']
).get()
- log.debug("vdu %s already has an alarm configured", vdur['name'])
- continue
- except ScalingAlarm.DoesNotExist:
- pass
- alarm_uuid = self.mon_client.create_alarm(
- metric_name=vdu_monitoring_param['nfvi-metric'],
- ns_id=nsr_id,
- vdu_name=vdur['name'],
- vnf_member_index=vnfr['member-vnf-index-ref'],
- threshold=scaling_criteria['scale-in-threshold'],
- operation=scaling_criteria['scale-in-relational-operation'],
- statistic=vnf_monitoring_param['aggregation-type']
- )
- ScalingAlarm.create(
- alarm_id=alarm_uuid,
- action='scale_in',
- vnf_member_index=int(vnfr['member-vnf-index-ref']),
- vdu_name=vdur['name'],
- scaling_criteria=scaling_criteria_record
- )
- alarm_uuid = self.mon_client.create_alarm(
- metric_name=vdu_monitoring_param['nfvi-metric'],
- ns_id=nsr_id,
- vdu_name=vdur['name'],
- vnf_member_index=vnfr['member-vnf-index-ref'],
- threshold=scaling_criteria['scale-out-threshold'],
- operation=scaling_criteria['scale-out-relational-operation'],
- statistic=vnf_monitoring_param['aggregation-type']
- )
- ScalingAlarm.create(
- alarm_id=alarm_uuid,
- action='scale_out',
- vnf_member_index=int(vnfr['member-vnf-index-ref']),
- vdu_name=vdur['name'],
- scaling_criteria=scaling_criteria_record
- )
+ log.info("Found existing scaling criteria record in DB...")
+ except ScalingCriteria.DoesNotExist:
+ log.info("Creating scaling criteria record in DB...")
+ scaling_criteria_record = ScalingCriteria.create(
+ nsr_id=nsr_id,
+ name=scaling_criteria['name'],
+ scaling_policy=scaling_policy_record
+ )
+ log.info(
+ "Created scaling criteria record in DB : name=%s, scaling_policy.name=%s",
+ scaling_criteria_record.name,
+ scaling_criteria_record.scaling_policy.name)
+
+ for vdu_ref in scaling_group['vdu']:
+ vnf_monitoring_param = next(
+ filter(lambda param: param['id'] == scaling_criteria[
+ 'vnf-monitoring-param-ref'], vnf_monitoring_params))
+ if not vdu_ref['vdu-id-ref'] == vnf_monitoring_param['vdu-ref']:
+ continue
+ vdu = next(
+ filter(lambda vdu: vdu['id'] == vdu_ref['vdu-id-ref'], vnfd['vdu'])
+ )
+ vdu_monitoring_params = vdu['monitoring-param']
+ vdu_monitoring_param = next(
+ filter(
+ lambda param: param['id'] == vnf_monitoring_param[
+ 'vdu-monitoring-param-ref'],
+ vdu_monitoring_params))
+ vdurs = list(
+ filter(lambda vdur: vdur['vdu-id-ref'] == vnf_monitoring_param['vdu-ref'],
+ vnfr['vdur']))
+ for vdur in vdurs:
+ try:
+ ScalingAlarm.select().join(ScalingCriteria).where(
+ ScalingAlarm.vdu_name == vdur['name'],
+ ScalingCriteria.name == scaling_criteria['name']
+ ).get()
+ log.debug("vdu %s already has an alarm configured", vdur['name'])
+ continue
+ except ScalingAlarm.DoesNotExist:
+ pass
+ alarm_uuid = self.mon_client.create_alarm(
+ metric_name=vdu_monitoring_param['nfvi-metric'],
+ ns_id=nsr_id,
+ vdu_name=vdur['name'],
+ vnf_member_index=vnfr['member-vnf-index-ref'],
+ threshold=scaling_criteria['scale-in-threshold'],
+ operation=scaling_criteria['scale-in-relational-operation'],
+ statistic=vnf_monitoring_param['aggregation-type']
+ )
+ ScalingAlarm.create(
+ alarm_id=alarm_uuid,
+ action='scale_in',
+ vnf_member_index=int(vnfr['member-vnf-index-ref']),
+ vdu_name=vdur['name'],
+ scaling_criteria=scaling_criteria_record
+ )
+ alarm_uuid = self.mon_client.create_alarm(
+ metric_name=vdu_monitoring_param['nfvi-metric'],
+ ns_id=nsr_id,
+ vdu_name=vdur['name'],
+ vnf_member_index=vnfr['member-vnf-index-ref'],
+ threshold=scaling_criteria['scale-out-threshold'],
+ operation=scaling_criteria['scale-out-relational-operation'],
+ statistic=vnf_monitoring_param['aggregation-type']
+ )
+ ScalingAlarm.create(
+ alarm_id=alarm_uuid,
+ action='scale_out',
+ vnf_member_index=int(vnfr['member-vnf-index-ref']),
+ vdu_name=vdur['name'],
+ scaling_criteria=scaling_criteria_record
+ )
+
+ except Exception as e:
+ log.exception("Error configuring scaling groups:")
+ if len(alarms_created) > 0:
+ log.info("Cleaning alarm resources in MON")
+ for alarm in alarms_created:
+ self.mon_client.delete_alarm(*alarm)
+ raise e
projects / osm / POL.git / commitdiff