masakari-monitors/masakarimonitors/ha/masakari.py

97 lines
3.6 KiB
Python

# Copyright(c) 2016 Nippon Telegraph and Telephone Corporation
#
# 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 eventlet
from keystoneauth1.identity.generic import password as ks_password
from keystoneauth1 import session as ks_session
from openstack import connection
from openstack import exceptions
from oslo_log import log as oslo_logging
import masakarimonitors.conf
LOG = oslo_logging.getLogger(__name__)
CONF = masakarimonitors.conf.CONF
class SendNotification(object):
def _make_client(self):
auth = ks_password.Password(
auth_url=CONF.api.auth_url,
username=CONF.api.username,
password=CONF.api.password,
user_domain_id=CONF.api.user_domain_id,
project_name=CONF.api.project_name,
project_domain_id=CONF.api.project_domain_id)
session = ks_session.Session(auth=auth)
conn = connection.Connection(session=session)
return conn.instance_ha
def send_notification(self, api_retry_max, api_retry_interval, event):
"""Send a notification.
This method sends a notification to the masakari-api.
:param api_retry_max: Number of retries when the notification
processing is error.
:param api_retry_interval: Trial interval of time of the notification
processing is error.
:param event: dictionary of event that included in notification.
"""
LOG.info("Send a notification. %s", event)
# Get client.
client = self._make_client()
# Send a notification.
retry_count = 0
while True:
try:
response = client.create_notification(
type=event['notification']['type'],
hostname=event['notification']['hostname'],
generated_time=event['notification']['generated_time'],
payload=event['notification']['payload'])
LOG.info("Response: %s", response)
break
except Exception as e:
if isinstance(e, exceptions.HttpException):
# TODO(samP): Remove attribute check and else case if
# openstacksdk is bumped up from '>=0.9.19' to '>=0.10.0'
# in global-requirements.
if hasattr(e, 'status_code'):
is_status_409 = e.status_code == 409
else:
is_status_409 = e.http_status == 409
if is_status_409:
msg = ("Stop retrying to send a notification because "
"same notification have been already sent.")
LOG.info("%s", msg)
break
if retry_count < api_retry_max:
LOG.warning("Retry sending a notification. (%s)", e)
retry_count = retry_count + 1
eventlet.greenthread.sleep(api_retry_interval)
else:
LOG.exception("Exception caught: %s", e)
break