2920a88b82
This adds a notifier driver for Oslo that will send directly samples to the collector, avoiding an entire round-trip of the data in their notification form. Currently, our only pulisher (ceilometer.publisher.meter) relies on openstack.common.rpc which doesn't allow cross project RPC calls, so it's no possible to use this publisher for now. But I'm confident this limitation will be bypassed soon as we redesign the RPC API. We will also add other methods to publish soon (HTTP, UDP…) that will be usable with this notifier driver. Blueprint: oslo-multi-publisher Change-Id: Ie639b2fdd3dce24680285ce91f1a024fcfb3b5d0 Signed-off-by: Julien Danjou <julien@danjou.info>
86 lines
2.5 KiB
Python
86 lines
2.5 KiB
Python
# -*- encoding: utf-8 -*-
|
|
#
|
|
# Copyright © 2013 eNovance
|
|
#
|
|
# Author: 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.
|
|
|
|
from ceilometer import pipeline
|
|
from ceilometer import publisher
|
|
from ceilometer import transformer
|
|
from ceilometer.openstack.common import context as req_context
|
|
from ceilometer.openstack.common import log as logging
|
|
from oslo.config import cfg
|
|
from stevedore import extension
|
|
|
|
|
|
LOG = logging.getLogger(__name__)
|
|
|
|
cfg.CONF.import_opt('counter_source', 'ceilometer.counter')
|
|
|
|
|
|
_notification_manager = None
|
|
_pipeline_manager = None
|
|
|
|
|
|
def _load_notification_manager():
|
|
global _notification_manager
|
|
|
|
namespace = 'ceilometer.collector'
|
|
|
|
LOG.debug('loading notification handlers from %s', namespace)
|
|
|
|
_notification_manager = extension.ExtensionManager(
|
|
namespace=namespace,
|
|
invoke_on_load=True)
|
|
|
|
if not list(_notification_manager):
|
|
LOG.warning('Failed to load any notification handlers for %s',
|
|
namespace)
|
|
|
|
|
|
def _load_pipeline_manager():
|
|
global _pipeline_manager
|
|
|
|
_pipeline_manager = pipeline.setup_pipeline(
|
|
transformer.TransformerExtensionManager(
|
|
'ceilometer.transformer',
|
|
),
|
|
publisher.PublisherExtensionManager(
|
|
'ceilometer.publisher',
|
|
),
|
|
)
|
|
|
|
|
|
def _process_notification_for_ext(ext, context, notification):
|
|
handler = ext.obj
|
|
if notification['event_type'] in handler.get_event_types():
|
|
|
|
with _pipeline_manager.publisher(context,
|
|
cfg.CONF.counter_source) as p:
|
|
# FIXME(dhellmann): Spawn green thread?
|
|
p(list(handler.process_notification(notification)))
|
|
|
|
|
|
def notify(context, message):
|
|
"""Sends a notification as a meter using Ceilometer pipelines."""
|
|
if not _notification_manager:
|
|
_load_notification_manager()
|
|
if not _pipeline_manager:
|
|
_load_pipeline_manager()
|
|
_notification_manager.map(
|
|
_process_notification_for_ext,
|
|
context=context or req_context.get_admin_context(),
|
|
notification=message)
|