openstack/deb-ceilometer
Code Issues Proposed changes

Handle the metrics sent by nova notifier

Browse Source 
Nova compute node can now get metrics from monitors and send
notifications to message bus. So, add listeners to handle the
metrics in ceilometer. This patch changes the directory layout
for compute notifications, because there will be other metrics
(e.g. network and cache Qos) to be added. The deployer can also
add the metrics they want. It's better to make a classification
of these metrics.

Nova blueprint utilization-aware-scheduling

Change-Id: I6f54ef18035c437370360bbaff6d71666d0323fe
This commit is contained in:
Shuangtai Tian 2013-07-30 18:10:12 +08:00
parent 5591e6a980
commit d2dfb1b146
8 changed files with 389 additions and 61 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

45
ceilometer/compute/notifications/__init__.py Normal file
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@ -0,0 +1,45 @@
# -*- encoding: utf-8 -*-
#
# Copyright © 2013 Intel
#
# Author: Shuangtai Tian <shuangtai.tian@intel.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.
from oslo.config import cfg
from ceilometer import plugin
OPTS = [
cfg.StrOpt('nova_control_exchange',
default='nova',
help="Exchange name for Nova notifications"),
]
cfg.CONF.register_opts(OPTS)
class ComputeNotificationBase(plugin.NotificationBase):
@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)),
]

140
ceilometer/compute/notifications/cpu.py Normal file
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@ -0,0 +1,140 @@
# -*- encoding: utf-8 -*-
#
# Copyright © 2013 Intel
#
# Author: Shuangtai Tian <shuangtai.tian@intel.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 CPU sample messages from notification
events.
"""
from ceilometer.compute import notifications
from ceilometer.openstack.common.gettextutils import _ # noqa
from ceilometer.openstack.common import log
from ceilometer.openstack.common import timeutils
from ceilometer import sample
LOG = log.getLogger(__name__)
class ComputeMetricsNotificationBase(notifications.ComputeNotificationBase):
"""Convert compute.metrics.update notifications into Samples
"""
event_types = ['compute.metrics.update']
metric = None
sample_type = None
unit = None
@staticmethod
def _get_sample(message, name):
try:
for metric in message['payload']['metrics']:
if name == metric['name']:
info = {}
info['payload'] = metric
info['event_type'] = message['event_type']
info['publisher_id'] = message['publisher_id']
info['resource_id'] = '%s_%s' % (
message['payload']['host'],
message['payload']['nodename'])
info['timestamp'] = str(timeutils.parse_strtime(
metric['timestamp']))
return info
except Exception as err:
LOG.warning(_('An error occurred while building %(m)s '
'sample: %(e)s') % {'m': name, 'e': err})
def process_notification(self, message):
info = self._get_sample(message, self.metric)
if info:
yield sample.Sample.from_notification(
name='compute.node.%s' % self.metric,
type=self.sample_type,
unit=self.unit,
volume=(info['payload']['value'] * 100 if self.unit == '%'
else info['payload']['value']),
user_id=None,
project_id=None,
resource_id=info['resource_id'],
message=info)
class CpuFrequency(ComputeMetricsNotificationBase):
"""Handle CPU current frequency message."""
metric = 'cpu.frequency'
sample_type = sample.TYPE_GAUGE,
unit = 'MHz'
class CpuUserTime(ComputeMetricsNotificationBase):
"""Handle CPU user mode time message."""
metric = 'cpu.user.time'
sample_type = sample.TYPE_CUMULATIVE,
unit = 'ns'
class CpuKernelTime(ComputeMetricsNotificationBase):
"""Handle CPU kernel time message."""
metric = 'cpu.kernel.time'
unit = 'ns'
sample_type = sample.TYPE_CUMULATIVE,
class CpuIdleTime(ComputeMetricsNotificationBase):
"""Handle CPU idle time message."""
metric = 'cpu.idle.time'
unit = 'ns'
sample_type = sample.TYPE_CUMULATIVE,
class CpuIowaitTime(ComputeMetricsNotificationBase):
"""Handle CPU I/O wait time message."""
metric = 'cpu.iowait.time'
unit = 'ns'
sample_type = sample.TYPE_CUMULATIVE,
class CpuKernelPercent(ComputeMetricsNotificationBase):
"""Handle CPU kernel percentage message."""
metric = 'cpu.kernel.percent'
unit = '%'
sample_type = sample.TYPE_GAUGE,
class CpuIdlePercent(ComputeMetricsNotificationBase):
"""Handle CPU idle percentage message."""
metric = 'cpu.idle.percent'
unit = '%'
sample_type = sample.TYPE_GAUGE,
class CpuUserPercent(ComputeMetricsNotificationBase):
"""Handle CPU user mode percentage message."""
metric = 'cpu.user.percent'
unit = '%'
sample_type = sample.TYPE_GAUGE,
class CpuIowaitPercent(ComputeMetricsNotificationBase):
"""Handle CPU I/O wait percentage message."""
metric = 'cpu.iowait.percent'
unit = '%'
sample_type = sample.TYPE_GAUGE,
class CpuPercent(ComputeMetricsNotificationBase):
"""Handle generic CPU utilization message."""
metric = 'cpu.percent'
unit = '%'
sample_type = sample.TYPE_GAUGE,

32
ceilometer/compute/notifications.py → ceilometer/compute/notifications/instance.py
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@ -20,37 +20,11 @@
"""Converters for producing compute sample messages from notification events.
"""
from oslo.config import cfg
from ceilometer import plugin
from ceilometer.compute import notifications
from ceilometer import sample
OPTS = [
cfg.StrOpt('nova_control_exchange',
default='nova',
help="Exchange name for Nova notifications"),
]
cfg.CONF.register_opts(OPTS)
class ComputeNotificationBase(plugin.NotificationBase):
@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)),
]
class InstanceScheduled(ComputeNotificationBase):
class InstanceScheduled(notifications.ComputeNotificationBase):
event_types = ['scheduler.run_instance.scheduled']
def process_notification(self, message):
@ -67,7 +41,7 @@ class InstanceScheduled(ComputeNotificationBase):
message=message)
class ComputeInstanceNotificationBase(ComputeNotificationBase):
class ComputeInstanceNotificationBase(notifications.ComputeNotificationBase):
"""Convert compute.instance.* notifications into Samples
"""
event_types = ['compute.instance.*']

0
ceilometer/tests/compute/notifications/__init__.py Normal file
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159
ceilometer/tests/compute/notifications/test_cpu.py Normal file
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@ -0,0 +1,159 @@
# -*- encoding: utf-8 -*-
#
# Copyright © 2013 Intel
#
# Author: Shuangtai Tian <Shuangtai.tian@intel.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.
"""Tests for converters for producing compute counter messages from
notification events.
"""
import copy
from ceilometer.compute.notifications import cpu
from ceilometer.openstack.common import test
METRICS_UPDATE = {
u'_context_request_id': u'req-a8bfa89b-d28b-4b95-9e4b-7d7875275650',
u'_context_quota_class': None,
u'event_type': u'compute.metrics.update',
u'_context_service_catalog': [],
u'_context_auth_token': None,
u'_context_user_id': None,
u'payload': {
u'metrics': [
{'timestamp': u'2013-07-29T06:51:34.472416',
'name': 'cpu.frequency', 'value': 1600,
'source': 'libvirt.LibvirtDriver'},
{'timestamp': u'2013-07-29T06:51:34.472416',
'name': 'cpu.user.time', 'value': 17421440000000L,
'source': 'libvirt.LibvirtDriver'},
{'timestamp': u'2013-07-29T06:51:34.472416',
'name': 'cpu.kernel.time', 'value': 7852600000000L,
'source': 'libvirt.LibvirtDriver'},
{'timestamp': u'2013-07-29T06:51:34.472416',
'name': 'cpu.idle.time', 'value': 1307374400000000L,
'source': 'libvirt.LibvirtDriver'},
{'timestamp': u'2013-07-29T06:51:34.472416',
'name': 'cpu.iowait.time', 'value': 11697470000000L,
'source': 'libvirt.LibvirtDriver'},
{'timestamp': u'2013-07-29T06:51:34.472416',
'name': 'cpu.user.percent', 'value': 0.012959045637294348,
'source': 'libvirt.LibvirtDriver'},
{'timestamp': u'2013-07-29T06:51:34.472416',
'name': 'cpu.kernel.percent', 'value': 0.005841204961898534,
'source': 'libvirt.LibvirtDriver'},
{'timestamp': u'2013-07-29T06:51:34.472416',
'name': 'cpu.idle.percent', 'value': 0.9724985141658965,
'source': 'libvirt.LibvirtDriver'},
{'timestamp': u'2013-07-29T06:51:34.472416',
'name': 'cpu.iowait.percent', 'value': 0.008701235234910634,
'source': 'libvirt.LibvirtDriver'},
{'timestamp': u'2013-07-29T06:51:34.472416',
'name': 'cpu.percent', 'value': 0.027501485834103515,
'source': 'libvirt.LibvirtDriver'}],
u'nodename': u'tianst.sh.intel.com',
u'host': u'tianst',
u'host_id': u'10.0.1.1'},
u'priority': u'INFO',
u'_context_is_admin': True,
u'_context_user': None,
u'publisher_id': u'compute.tianst.sh.intel.com',
u'message_id': u'6eccedba-120e-4db8-9735-2ad5f061e5ee',
u'_context_remote_address': None,
u'_context_roles': [],
u'timestamp': u'2013-07-29 06:51:34.474815',
u'_context_timestamp': u'2013-07-29T06:51:34.348091',
u'_unique_id': u'0ee26117077648e18d88ac76e28a72e2',
u'_context_project_name': None,
u'_context_read_deleted': u'no',
u'_context_tenant': None,
u'_context_instance_lock_checked': False,
u'_context_project_id': None,
u'_context_user_name': None
}
RES_ID = '%s_%s' % (METRICS_UPDATE['payload']['host'],
METRICS_UPDATE['payload']['nodename'])
class TestMetricsNotifications(test.BaseTestCase):
def _process_notification(self, ic):
self.assertIn(METRICS_UPDATE['event_type'],
ic.event_types)
samples = list(ic.process_notification(METRICS_UPDATE))
self.assertEqual(samples[0].resource_id, RES_ID)
return samples[0]
def test_compute_metrics(self):
ERROR_METRICS = copy.copy(METRICS_UPDATE)
ERROR_METRICS['payload'] = {"metric_err": []}
ic = cpu.CpuFrequency()
info = ic._get_sample(METRICS_UPDATE, 'cpu.frequency')
info_none = ic._get_sample(METRICS_UPDATE, 'abc.efg')
info_error = ic._get_sample(ERROR_METRICS, 'cpu.frequency')
self.assertEqual(info['payload']['name'], 'cpu.frequency')
self.assertEqual(info_none, None)
self.assertEqual(info_error, None)
def test_compute_cpu_frequency(self):
c = self._process_notification(cpu.CpuFrequency())
self.assertEqual(c.name, 'compute.node.cpu.frequency')
self.assertEqual(c.volume, 1600)
def test_compute_cpu_user_time(self):
c = self._process_notification(cpu.CpuUserTime())
self.assertEqual(c.name, 'compute.node.cpu.user.time')
self.assertEqual(c.volume, 17421440000000L)
def test_compute_cpu_kernel_time(self):
c = self._process_notification(cpu.CpuKernelTime())
self.assertEqual(c.name, 'compute.node.cpu.kernel.time')
self.assertEqual(c.volume, 7852600000000L)
def test_compute_cpu_idle_time(self):
c = self._process_notification(cpu.CpuIdleTime())
self.assertEqual(c.name, 'compute.node.cpu.idle.time')
self.assertEqual(c.volume, 1307374400000000L)
def test_compute_cpu_iowait_time(self):
c = self._process_notification(cpu.CpuIowaitTime())
self.assertEqual(c.name, 'compute.node.cpu.iowait.time')
self.assertEqual(c.volume, 11697470000000L)
def test_compute_cpu_kernel_percent(self):
c = self._process_notification(cpu.CpuKernelPercent())
self.assertEqual(c.name, 'compute.node.cpu.kernel.percent')
self.assertEqual(c.volume, 0.5841204961898534)
def test_compute_cpu_idle_percent(self):
c = self._process_notification(cpu.CpuIdlePercent())
self.assertEqual(c.name, 'compute.node.cpu.idle.percent')
self.assertEqual(c.volume, 97.24985141658965)
def test_compute_cpu_user_percent(self):
c = self._process_notification(cpu.CpuUserPercent())
self.assertEqual(c.name, 'compute.node.cpu.user.percent')
self.assertEqual(c.volume, 1.2959045637294348)
def test_compute_cpu_iowait_percent(self):
c = self._process_notification(cpu.CpuIowaitPercent())
self.assertEqual(c.name, 'compute.node.cpu.iowait.percent')
self.assertEqual(c.volume, 0.8701235234910634)
def test_compute_cpu_percent(self):
c = self._process_notification(cpu.CpuPercent())
self.assertEqual(c.name, 'compute.node.cpu.percent')
self.assertEqual(c.volume, 2.7501485834103515)

44
ceilometer/tests/compute/test_notifications.py → ceilometer/tests/compute/notifications/test_instance.py
View File

@ -21,7 +21,7 @@
notification events.
"""
from ceilometer.compute import notifications
from ceilometer.compute.notifications import instance
from ceilometer.openstack.common import test
from ceilometer import sample
@ -401,7 +401,7 @@ INSTANCE_SCHEDULED = {
class TestNotifications(test.BaseTestCase):
def test_process_notification(self):
info = list(notifications.Instance().process_notification(
info = list(instance.Instance().process_notification(
INSTANCE_CREATE_END
))[0]
for name, actual, expected in [
@ -425,42 +425,42 @@ class TestNotifications(test.BaseTestCase):
return filter(lambda counter: counter.name == name, counters)[0]
def test_instance_create_instance(self):
ic = notifications.Instance()
ic = instance.Instance()
counters = list(ic.process_notification(INSTANCE_CREATE_END))
self.assertEqual(len(counters), 1)
c = counters[0]
self.assertEqual(c.volume, 1)
def test_instance_create_flavor(self):
ic = notifications.InstanceFlavor()
ic = instance.InstanceFlavor()
counters = list(ic.process_notification(INSTANCE_CREATE_END))
self.assertEqual(len(counters), 1)
c = counters[0]
self.assertEqual(c.volume, 1)
def test_instance_create_memory(self):
ic = notifications.Memory()
ic = instance.Memory()
counters = list(ic.process_notification(INSTANCE_CREATE_END))
self.assertEqual(len(counters), 1)
c = counters[0]
self.assertEqual(c.volume, INSTANCE_CREATE_END['payload']['memory_mb'])
def test_instance_create_vcpus(self):
ic = notifications.VCpus()
ic = instance.VCpus()
counters = list(ic.process_notification(INSTANCE_CREATE_END))
self.assertEqual(len(counters), 1)
c = counters[0]
self.assertEqual(c.volume, INSTANCE_CREATE_END['payload']['vcpus'])
def test_instance_create_root_disk_size(self):
ic = notifications.RootDiskSize()
ic = instance.RootDiskSize()
counters = list(ic.process_notification(INSTANCE_CREATE_END))
self.assertEqual(len(counters), 1)
c = counters[0]
self.assertEqual(c.volume, INSTANCE_CREATE_END['payload']['root_gb'])
def test_instance_create_ephemeral_disk_size(self):
ic = notifications.EphemeralDiskSize()
ic = instance.EphemeralDiskSize()
counters = list(ic.process_notification(INSTANCE_CREATE_END))
self.assertEqual(len(counters), 1)
c = counters[0]
@ -468,34 +468,34 @@ class TestNotifications(test.BaseTestCase):
INSTANCE_CREATE_END['payload']['ephemeral_gb'])
def test_instance_exists_instance(self):
ic = notifications.Instance()
ic = instance.Instance()
counters = list(ic.process_notification(INSTANCE_EXISTS))
self.assertEqual(len(counters), 1)
def test_instance_exists_flavor(self):
ic = notifications.Instance()
ic = instance.Instance()
counters = list(ic.process_notification(INSTANCE_EXISTS))
self.assertEqual(len(counters), 1)
def test_instance_delete_instance(self):
ic = notifications.Instance()
ic = instance.Instance()
counters = list(ic.process_notification(INSTANCE_DELETE_START))
self.assertEqual(len(counters), 1)
def test_instance_delete_flavor(self):
ic = notifications.Instance()
ic = instance.Instance()
counters = list(ic.process_notification(INSTANCE_DELETE_START))
self.assertEqual(len(counters), 1)
def test_instance_finish_resize_instance(self):
ic = notifications.Instance()
ic = instance.Instance()
counters = list(ic.process_notification(INSTANCE_FINISH_RESIZE_END))
self.assertEqual(len(counters), 1)
c = counters[0]
self.assertEqual(c.volume, 1)
def test_instance_finish_resize_flavor(self):
ic = notifications.InstanceFlavor()
ic = instance.InstanceFlavor()
counters = list(ic.process_notification(INSTANCE_FINISH_RESIZE_END))
self.assertEqual(len(counters), 1)
c = counters[0]
@ -503,7 +503,7 @@ class TestNotifications(test.BaseTestCase):
self.assertEqual(c.name, 'instance:m1.small')
def test_instance_finish_resize_memory(self):
ic = notifications.Memory()
ic = instance.Memory()
counters = list(ic.process_notification(INSTANCE_FINISH_RESIZE_END))
self.assertEqual(len(counters), 1)
c = counters[0]
@ -511,7 +511,7 @@ class TestNotifications(test.BaseTestCase):
INSTANCE_FINISH_RESIZE_END['payload']['memory_mb'])
def test_instance_finish_resize_vcpus(self):
ic = notifications.VCpus()
ic = instance.VCpus()
counters = list(ic.process_notification(INSTANCE_FINISH_RESIZE_END))
self.assertEqual(len(counters), 1)
c = counters[0]
@ -519,14 +519,14 @@ class TestNotifications(test.BaseTestCase):
INSTANCE_FINISH_RESIZE_END['payload']['vcpus'])
def test_instance_resize_finish_instance(self):
ic = notifications.Instance()
ic = instance.Instance()
counters = list(ic.process_notification(INSTANCE_FINISH_RESIZE_END))
self.assertEqual(len(counters), 1)
c = counters[0]
self.assertEqual(c.volume, 1)
def test_instance_resize_finish_flavor(self):
ic = notifications.InstanceFlavor()
ic = instance.InstanceFlavor()
counters = list(ic.process_notification(INSTANCE_RESIZE_REVERT_END))
self.assertEqual(len(counters), 1)
c = counters[0]
@ -534,7 +534,7 @@ class TestNotifications(test.BaseTestCase):
self.assertEqual(c.name, 'instance:m1.tiny')
def test_instance_resize_finish_memory(self):
ic = notifications.Memory()
ic = instance.Memory()
counters = list(ic.process_notification(INSTANCE_RESIZE_REVERT_END))
self.assertEqual(len(counters), 1)
c = counters[0]
@ -542,7 +542,7 @@ class TestNotifications(test.BaseTestCase):
INSTANCE_RESIZE_REVERT_END['payload']['memory_mb'])
def test_instance_resize_finish_vcpus(self):
ic = notifications.VCpus()
ic = instance.VCpus()
counters = list(ic.process_notification(INSTANCE_RESIZE_REVERT_END))
self.assertEqual(len(counters), 1)
c = counters[0]
@ -550,14 +550,14 @@ class TestNotifications(test.BaseTestCase):
INSTANCE_RESIZE_REVERT_END['payload']['vcpus'])
def test_instance_delete_samples(self):
ic = notifications.InstanceDelete()
ic = instance.InstanceDelete()
counters = list(ic.process_notification(INSTANCE_DELETE_SAMPLES))
self.assertEqual(len(counters), 2)
names = [c.name for c in counters]
self.assertEqual(names, ['sample-name1', 'sample-name2'])
def test_instance_scheduled(self):
ic = notifications.InstanceScheduled()
ic = instance.InstanceScheduled()
self.assertIn(INSTANCE_SCHEDULED['event_type'],
ic.event_types)

4
ceilometer/tests/test_notification.py
View File

@ -23,7 +23,7 @@ import mock
from stevedore import extension
from stevedore.tests import manager as test_manager
from ceilometer.compute import notifications
from ceilometer.compute.notifications import instance
from ceilometer import notification
from ceilometer.openstack.common.fixture import config
from ceilometer.openstack.common import timeutils
@ -101,7 +101,7 @@ class TestNotification(tests_base.BaseTestCase):
[extension.Extension('test',
None,
None,
notifications.Instance(),
instance.Instance(),
),
])
self.srv.process_notification(TEST_NOTICE)

26
setup.cfg
View File

@ -29,14 +29,24 @@ packages =
[entry_points]
ceilometer.notification =
instance = ceilometer.compute.notifications:Instance
instance_flavor = ceilometer.compute.notifications:InstanceFlavor
instance_delete = ceilometer.compute.notifications:InstanceDelete
instance_scheduled = ceilometer.compute.notifications:InstanceScheduled
memory = ceilometer.compute.notifications:Memory
vcpus = ceilometer.compute.notifications:VCpus
disk_root_size = ceilometer.compute.notifications:RootDiskSize
disk_ephemeral_size = ceilometer.compute.notifications:EphemeralDiskSize
instance = ceilometer.compute.notifications.instance:Instance
instance_flavor = ceilometer.compute.notifications.instance:InstanceFlavor
instance_delete = ceilometer.compute.notifications.instance:InstanceDelete
instance_scheduled = ceilometer.compute.notifications.instance:InstanceScheduled
memory = ceilometer.compute.notifications.instance:Memory
vcpus = ceilometer.compute.notifications.instance:VCpus
disk_root_size = ceilometer.compute.notifications.instance:RootDiskSize
disk_ephemeral_size = ceilometer.compute.notifications.instance:EphemeralDiskSize
cpu_frequency = ceilometer.compute.notifications.cpu:CpuFrequency
cpu_user_time = ceilometer.compute.notifications.cpu:CpuUserTime
cpu_kernel_time = ceilometer.compute.notifications.cpu:CpuKernelTime
cpu_idle_time = ceilometer.compute.notifications.cpu:CpuIdleTime
cpu_iowait_time = ceilometer.compute.notifications.cpu:CpuIowaitTime
cpu_kernel_percent = ceilometer.compute.notifications.cpu:CpuKernelPercent
cpu_idle_percent = ceilometer.compute.notifications.cpu:CpuIdlePercent
cpu_user_percent = ceilometer.compute.notifications.cpu:CpuUserPercent
cpu_iowait_percent = ceilometer.compute.notifications.cpu:CpuIowaitPercent
cpu_percent = ceilometer.compute.notifications.cpu:CpuPercent
volume = ceilometer.volume.notifications:Volume
volume_size = ceilometer.volume.notifications:VolumeSize
image_crud = ceilometer.image.notifications:ImageCRUD