aodh/ceilometer/compute/notifications/instance.py
Julien Danjou a5f8d66d6e Upgrade to hacking 0.10
Change-Id: Ia567c3aeb7f8516d0834dc8e4c3852e43a687043
2015-01-23 17:43:04 +01:00

175 lines
6.2 KiB
Python

#
# Copyright 2012 New Dream Network, LLC (DreamHost)
# Copyright 2013 eNovance
#
# 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)
class UserMetadataAwareInstanceNotificationBase(
notifications.ComputeNotificationBase):
"""Consumes notifications containing instance user metadata."""
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)
def get_instance_properties(self, message):
"""Retrieve instance properties from notification payload."""
return message['payload']
@abc.abstractmethod
def get_sample(self, message):
"""Derive sample from notification payload."""
class InstanceScheduled(UserMetadataAwareInstanceNotificationBase):
event_types = ['scheduler.run_instance.scheduled']
def get_instance_properties(self, message):
"""Retrieve instance properties from notification payload."""
return message['payload']['request_spec']['instance_properties']
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)
class ComputeInstanceNotificationBase(
UserMetadataAwareInstanceNotificationBase):
"""Convert compute.instance.* notifications into Samples."""
event_types = ['compute.instance.*']
class Instance(ComputeInstanceNotificationBase):
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)
class Memory(ComputeInstanceNotificationBase):
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)
class VCpus(ComputeInstanceNotificationBase):
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)
class RootDiskSize(ComputeInstanceNotificationBase):
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)
class EphemeralDiskSize(ComputeInstanceNotificationBase):
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)
class InstanceFlavor(ComputeInstanceNotificationBase):
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)
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']
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)