deb-ceilometer/ceilometer/alarm/notifier/trust.py
Thomas Herve cfd9b746e1 Optionally create trust for alarm actions
When creating actions using TrustRestAlarmNotifier, allow the absence of
trust ID and automatically creates a trust in this case for the
ceilometer service user. This enables creation of trust alarms without
knowing the ceilometer service user ID outside of ceilometer itself.

blueprint trust-alarm-notifier
Change-Id: I4b781cbdd46dd4574fea44b40adad869373ab344
2015-05-27 05:57:06 +02:00

57 lines
1.9 KiB
Python

#
# Copyright 2014 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.
"""Rest alarm notifier with trusted authentication."""
from oslo_config import cfg
from six.moves.urllib import parse
from ceilometer.alarm.notifier import rest
from ceilometer import keystone_client
cfg.CONF.import_opt('http_timeout', 'ceilometer.service')
cfg.CONF.import_group('service_credentials', 'ceilometer.service')
class TrustRestAlarmNotifier(rest.RestAlarmNotifier):
"""Notifier supporting keystone trust authentication.
This alarm notifier is intended to be used to call an endpoint using
keystone authentication. It uses the ceilometer service user to
authenticate using the trust ID provided.
The URL must be in the form trust+http://trust-id@host/action.
"""
@staticmethod
def notify(action, alarm_id, alarm_name, severity, previous, current,
reason, reason_data):
trust_id = action.username
client = keystone_client.get_v3_client(trust_id)
# Remove the fake user
netloc = action.netloc.split("@")[1]
# Remove the trust prefix
scheme = action.scheme[6:]
action = parse.SplitResult(scheme, netloc, action.path, action.query,
action.fragment)
headers = {'X-Auth-Token': client.auth_token}
rest.RestAlarmNotifier.notify(
action, alarm_id, alarm_name, severity, previous, current, reason,
reason_data, headers)