ceilometer/ceilometer/alarm/rpc.py

97 lines
3.8 KiB
Python

#
# Copyright 2013 eNovance <licensing@enovance.com>
#
# Authors: Mehdi Abaakouk <mehdi.abaakouk@enovance.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
import six
from ceilometer.alarm.storage import models
from ceilometer import messaging
from ceilometer.openstack.common import context
from ceilometer.openstack.common.gettextutils import _
from ceilometer.openstack.common import log
OPTS = [
cfg.StrOpt('notifier_rpc_topic',
default='alarm_notifier',
help='The topic that ceilometer uses for alarm notifier '
'messages.'),
cfg.StrOpt('partition_rpc_topic',
default='alarm_partition_coordination',
help='The topic that ceilometer uses for alarm partition '
'coordination messages. DEPRECATED: RPC-based partitioned'
'alarm evaluation service will be removed in Kilo in '
'favour of the default alarm evaluation service using '
'tooz for partitioning.'),
]
cfg.CONF.register_opts(OPTS, group='alarm')
LOG = log.getLogger(__name__)
class RPCAlarmNotifier(object):
def __init__(self):
transport = messaging.get_transport()
self.client = messaging.get_rpc_client(
transport, topic=cfg.CONF.alarm.notifier_rpc_topic,
version="1.0")
def notify(self, alarm, previous, reason, reason_data):
actions = getattr(alarm, models.Alarm.ALARM_ACTIONS_MAP[alarm.state])
if not actions:
LOG.debug(_('alarm %(alarm_id)s has no action configured '
'for state transition from %(previous)s to '
'state %(state)s, skipping the notification.') %
{'alarm_id': alarm.alarm_id,
'previous': previous,
'state': alarm.state})
return
self.client.cast(context.get_admin_context(),
'notify_alarm', data={
'actions': actions,
'alarm_id': alarm.alarm_id,
'previous': previous,
'current': alarm.state,
'reason': six.text_type(reason),
'reason_data': reason_data})
class RPCAlarmPartitionCoordination(object):
def __init__(self):
transport = messaging.get_transport()
self.client = messaging.get_rpc_client(
transport, topic=cfg.CONF.alarm.partition_rpc_topic,
version="1.0")
def presence(self, uuid, priority):
cctxt = self.client.prepare(fanout=True)
return cctxt.cast(context.get_admin_context(),
'presence', data={'uuid': uuid,
'priority': priority})
def assign(self, uuid, alarms):
cctxt = self.client.prepare(fanout=True)
return cctxt.cast(context.get_admin_context(),
'assign', data={'uuid': uuid,
'alarms': alarms})
def allocate(self, uuid, alarms):
cctxt = self.client.prepare(fanout=True)
return cctxt.cast(context.get_admin_context(),
'allocate', data={'uuid': uuid,
'alarms': alarms})