108 lines
4.0 KiB
Python
108 lines
4.0 KiB
Python
# -*- encoding: utf-8 -*-
|
|
#
|
|
# Copyright © 2012-2013 eNovance <licensing@enovance.com>
|
|
#
|
|
# 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.
|
|
|
|
import socket
|
|
|
|
import msgpack
|
|
from oslo.config import cfg
|
|
|
|
from ceilometer.openstack.common.gettextutils import _ # noqa
|
|
from ceilometer.openstack.common import log
|
|
from ceilometer.openstack.common.rpc import dispatcher as rpc_dispatcher
|
|
from ceilometer.openstack.common.rpc import service as rpc_service
|
|
from ceilometer.openstack.common import units
|
|
from ceilometer import service
|
|
|
|
OPTS = [
|
|
cfg.StrOpt('udp_address',
|
|
default='0.0.0.0',
|
|
help='Address to which the UDP socket is bound. Set to '
|
|
'an empty string to disable.'),
|
|
cfg.IntOpt('udp_port',
|
|
default=4952,
|
|
help='Port to which the UDP socket is bound.'),
|
|
]
|
|
|
|
cfg.CONF.register_opts(OPTS, group="collector")
|
|
cfg.CONF.import_opt('rpc_backend', 'ceilometer.openstack.common.rpc')
|
|
cfg.CONF.import_opt('metering_topic', 'ceilometer.publisher.rpc',
|
|
group="publisher_rpc")
|
|
|
|
|
|
LOG = log.getLogger(__name__)
|
|
|
|
|
|
class CollectorService(service.DispatchedService, rpc_service.Service):
|
|
"""Listener for the collector service."""
|
|
|
|
def start(self):
|
|
"""Bind the UDP socket and handle incoming data."""
|
|
if cfg.CONF.collector.udp_address:
|
|
self.tg.add_thread(self.start_udp)
|
|
if cfg.CONF.rpc_backend:
|
|
super(CollectorService, self).start()
|
|
if not cfg.CONF.collector.udp_address:
|
|
# Add a dummy thread to have wait() working
|
|
self.tg.add_timer(604800, lambda: None)
|
|
|
|
def start_udp(self):
|
|
udp = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
|
|
udp.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
|
|
udp.bind((cfg.CONF.collector.udp_address,
|
|
cfg.CONF.collector.udp_port))
|
|
|
|
self.udp_run = True
|
|
while self.udp_run:
|
|
# NOTE(jd) Arbitrary limit of 64K because that ought to be
|
|
# enough for anybody.
|
|
data, source = udp.recvfrom(64 * units.Ki)
|
|
try:
|
|
sample = msgpack.loads(data)
|
|
except Exception:
|
|
LOG.warn(_("UDP: Cannot decode data sent by %s"), str(source))
|
|
else:
|
|
try:
|
|
LOG.debug(_("UDP: Storing %s"), str(sample))
|
|
self.dispatcher_manager.map_method('record_metering_data',
|
|
sample)
|
|
except Exception:
|
|
LOG.exception(_("UDP: Unable to store meter"))
|
|
|
|
def stop(self):
|
|
self.udp_run = False
|
|
super(CollectorService, self).stop()
|
|
|
|
def initialize_service_hook(self, service):
|
|
'''Consumers must be declared before consume_thread start.'''
|
|
# Set ourselves up as a separate worker for the metering data,
|
|
# since the default for service is to use create_consumer().
|
|
self.conn.create_worker(
|
|
cfg.CONF.publisher_rpc.metering_topic,
|
|
rpc_dispatcher.RpcDispatcher([self]),
|
|
'ceilometer.collector.' + cfg.CONF.publisher_rpc.metering_topic,
|
|
)
|
|
|
|
def record_metering_data(self, context, data):
|
|
"""RPC endpoint for messages we send to ourselves.
|
|
|
|
When the notification messages are re-published through the
|
|
RPC publisher, this method receives them for processing.
|
|
"""
|
|
self.dispatcher_manager.map_method('record_metering_data',
|
|
data=data)
|