# -*- encoding: utf-8 -*-
#
# Copyright © 2012 New Dream Network, LLC (DreamHost)
#
# Author: Doug Hellmann <doug.hellmann@dreamhost.com>
#
# 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.
"""Converters for producing compute counter messages from notification events.
"""
from oslo.config import cfg
from ceilometer.compute import instance
from ceilometer import counter
from ceilometer import plugin
OPTS = [
cfg.StrOpt('nova_control_exchange',
default='nova',
help="Exchange name for Nova notifications"),
]
cfg.CONF.register_opts(OPTS)
class _Base(plugin.NotificationBase):
"""Convert compute.instance.* notifications into Counters
"""
metadata_keys = instance.INSTANCE_PROPERTIES
def notification_to_metadata(self, event):
metadata = super(_Base, self).notification_to_metadata(event)
metadata['instance_type'] = event['payload']['instance_type_id']
return metadata
@staticmethod
def get_event_types():
return ['compute.instance.create.end',
'compute.instance.exists',
'compute.instance.delete.start',
'compute.instance.finish_resize.end',
'compute.instance.resize.revert.end']
@staticmethod
def get_exchange_topics(conf):
"""Return a sequence of ExchangeTopics defining the exchange and
topics to be connected for this plugin."""
return [
plugin.ExchangeTopics(
exchange=conf.nova_control_exchange,
topics=set(topic + ".info"
for topic in conf.notification_topics)),
]
[docs]class Instance(_Base):
[docs] def process_notification(self, message):
return [
counter.Counter(name='instance',
type=counter.TYPE_GAUGE,
unit='instance',
volume=1,
user_id=message['payload']['user_id'],
project_id=message['payload']['tenant_id'],
resource_id=message['payload']['instance_id'],
timestamp=message['timestamp'],
resource_metadata=self.notification_to_metadata(
message),
),
]
[docs]class Memory(_Base):
[docs] def process_notification(self, message):
return [
counter.Counter(name='memory',
type=counter.TYPE_GAUGE,
unit='MB',
volume=message['payload']['memory_mb'],
user_id=message['payload']['user_id'],
project_id=message['payload']['tenant_id'],
resource_id=message['payload']['instance_id'],
timestamp=message['timestamp'],
resource_metadata=self.notification_to_metadata(
message)),
]
[docs]class VCpus(_Base):
[docs] def process_notification(self, message):
return [
counter.Counter(name='vcpus',
type=counter.TYPE_GAUGE,
unit='vcpu',
volume=message['payload']['vcpus'],
user_id=message['payload']['user_id'],
project_id=message['payload']['tenant_id'],
resource_id=message['payload']['instance_id'],
timestamp=message['timestamp'],
resource_metadata=self.notification_to_metadata(
message)),
]
[docs]class RootDiskSize(_Base):
[docs] def process_notification(self, message):
return [
counter.Counter(name='disk.root.size',
type=counter.TYPE_GAUGE,
unit='GB',
volume=message['payload']['root_gb'],
user_id=message['payload']['user_id'],
project_id=message['payload']['tenant_id'],
resource_id=message['payload']['instance_id'],
timestamp=message['timestamp'],
resource_metadata=self.notification_to_metadata(
message)),
]
[docs]class EphemeralDiskSize(_Base):
[docs] def process_notification(self, message):
return [
counter.Counter(name='disk.ephemeral.size',
type=counter.TYPE_GAUGE,
unit='GB',
volume=message['payload']['ephemeral_gb'],
user_id=message['payload']['user_id'],
project_id=message['payload']['tenant_id'],
resource_id=message['payload']['instance_id'],
timestamp=message['timestamp'],
resource_metadata=self.notification_to_metadata(
message)),
]
[docs]class InstanceFlavor(_Base):
[docs] def process_notification(self, message):
counters = []
instance_type = message.get('payload', {}).get('instance_type')
if instance_type:
counters.append(
counter.Counter(
name='instance:%s' % instance_type,
type=counter.TYPE_GAUGE,
unit='instance',
volume=1,
user_id=message['payload']['user_id'],
project_id=message['payload']['tenant_id'],
resource_id=message['payload']['instance_id'],
timestamp=message['timestamp'],
resource_metadata=self.notification_to_metadata(
message),
)
)
return counters
[docs]class InstanceDelete(_Base):
"""Handle the messages sent by the nova notifier plugin
when an instance is being deleted.
"""
@staticmethod
[docs] def get_event_types():
return ['compute.instance.delete.samples']
[docs] def process_notification(self, message):
return [
counter.Counter(name=sample['name'],
type=sample['type'],
unit=sample['unit'],
volume=sample['volume'],
user_id=message['payload']['user_id'],
project_id=message['payload']['tenant_id'],
resource_id=message['payload']['instance_id'],
timestamp=message['timestamp'],
resource_metadata=self.notification_to_metadata(
message),
)
for sample in message['payload'].get('samples', [])
]