Source code for ceilometer.dns.notifications
#
# Copyright 2015 Hewlett Packard
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
from oslo_config import cfg
import oslo_messaging
from oslo_utils import timeutils
from ceilometer.agent import plugin_base
from ceilometer import sample
OPTS = [
cfg.StrOpt('dns_control_exchange',
default='central',
help="Exchange name for DNS notifications."),
]
cfg.CONF.register_opts(OPTS)
SERVICE = 'dns'
[docs]class DnsMetricsNotificationBase(plugin_base.NotificationBase):
"""Base class for DNSaaS(Designate) notifications."""
[docs] def get_targets(self, conf):
"""Return a sequence of oslo.messaging.Target
This sequence is defining the exchange and topics to be connected for
this plugin.
"""
return [oslo_messaging.Target(topic=topic,
exchange=conf.dns_control_exchange)
for topic in self.get_notification_topics(conf)]
[docs]class DomainExists(DnsMetricsNotificationBase):
"""Handles DNS domain exists notification.
Emits a sample for a measurable audit interval.
"""
event_types = ['%s.domain.exists' % SERVICE]
[docs] def process_notification(self, message):
period_start = timeutils.normalize_time(timeutils.parse_isotime(
message['payload']['audit_period_beginning']))
period_end = timeutils.normalize_time(timeutils.parse_isotime(
message['payload']['audit_period_ending']))
period_difference = timeutils.delta_seconds(period_start, period_end)
yield sample.Sample.from_notification(
name=message['event_type'],
type=sample.TYPE_CUMULATIVE,
unit='s',
volume=period_difference,
resource_id=message['payload']['id'],
user_id=message['_context_user'],
project_id=message['payload']['tenant_id'],
message=message)