Source code for ceilometer.compute.notifications.instance

#
# Copyright 2012 New Dream Network, LLC (DreamHost)
# Copyright 2013 eNovance
#
# Author: Doug Hellmann <doug.hellmann@dreamhost.com>
#         Julien Danjou <julien@danjou.info>
#
# 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 sample messages from notification events.
"""

import abc
import six

from ceilometer.compute import notifications
from ceilometer.compute import util
from ceilometer import sample


@six.add_metaclass(abc.ABCMeta)
[docs]class UserMetadataAwareInstanceNotificationBase( notifications.ComputeNotificationBase): """Consumes notifications containing instance user metadata."""
[docs] def process_notification(self, message): instance_properties = self.get_instance_properties(message) if isinstance(instance_properties.get('metadata'), dict): src_metadata = instance_properties['metadata'] del instance_properties['metadata'] util.add_reserved_user_metadata(src_metadata, instance_properties) return self.get_sample(message)
[docs] def get_instance_properties(self, message): """Retrieve instance properties from notification payload.""" return message['payload']
@abc.abstractmethod
[docs] def get_sample(self, message): """Derive sample from notification payload."""
[docs]class InstanceScheduled(UserMetadataAwareInstanceNotificationBase): event_types = ['scheduler.run_instance.scheduled']
[docs] def get_instance_properties(self, message): """Retrieve instance properties from notification payload.""" return message['payload']['request_spec']['instance_properties']
[docs] def get_sample(self, message): yield sample.Sample.from_notification( name='instance.scheduled', type=sample.TYPE_DELTA, volume=1, unit='instance', user_id=None, project_id=message['payload']['request_spec'] ['instance_properties']['project_id'], resource_id=message['payload']['instance_id'], message=message)
[docs]class ComputeInstanceNotificationBase( UserMetadataAwareInstanceNotificationBase): """Convert compute.instance.* notifications into Samples.""" event_types = ['compute.instance.*']
[docs]class Instance(ComputeInstanceNotificationBase):
[docs] def get_sample(self, message): yield sample.Sample.from_notification( name='instance', type=sample.TYPE_GAUGE, unit='instance', volume=1, user_id=message['payload']['user_id'], project_id=message['payload']['tenant_id'], resource_id=message['payload']['instance_id'], message=message)
[docs]class Memory(ComputeInstanceNotificationBase):
[docs] def get_sample(self, message): yield sample.Sample.from_notification( name='memory', type=sample.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'], message=message)
[docs]class VCpus(ComputeInstanceNotificationBase):
[docs] def get_sample(self, message): yield sample.Sample.from_notification( name='vcpus', type=sample.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'], message=message)
[docs]class RootDiskSize(ComputeInstanceNotificationBase):
[docs] def get_sample(self, message): yield sample.Sample.from_notification( name='disk.root.size', type=sample.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'], message=message)
[docs]class EphemeralDiskSize(ComputeInstanceNotificationBase):
[docs] def get_sample(self, message): yield sample.Sample.from_notification( name='disk.ephemeral.size', type=sample.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'], message=message)
[docs]class InstanceFlavor(ComputeInstanceNotificationBase):
[docs] def get_sample(self, message): instance_type = message.get('payload', {}).get('instance_type') if instance_type: yield sample.Sample.from_notification( name='instance:%s' % instance_type, type=sample.TYPE_GAUGE, unit='instance', volume=1, user_id=message['payload']['user_id'], project_id=message['payload']['tenant_id'], resource_id=message['payload']['instance_id'], message=message)
[docs]class InstanceDelete(ComputeInstanceNotificationBase): """Handle the messages sent by the nova notifier plugin. Messages are sent when an instance is being deleted. """ event_types = ['compute.instance.delete.samples']
[docs] def get_sample(self, message): for s in message['payload'].get('samples', []): yield sample.Sample.from_notification( name=s['name'], type=s['type'], unit=s['unit'], volume=s['volume'], user_id=message['payload']['user_id'], project_id=message['payload']['tenant_id'], resource_id=message['payload']['instance_id'], message=message)