shipyard/shipyard_airflow/plugins/service_endpoint.py

58 lines
2.0 KiB
Python

# Copyright 2017 AT&T Intellectual Property. All other rights reserved.
#
# 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 logging
import time
from airflow.exceptions import AirflowException
from service_session import ucp_keystone_session
def ucp_service_endpoint(self, context):
# Initialize variables
retry = 0
int_endpoint = None
# Retrieve Keystone Session
sess = ucp_keystone_session(self, context)
# We will allow 1 retry in getting the Keystone Endpoint with a
# backoff interval of 10 seconds in case there is a temporary
# glitch in the network or transient problems with the keystone-api
# pod
while retry <= 1:
# Retrieve Keystone Endpoint
# We will make use of internal endpoint
logging.info("Get Keystone Endpoint")
int_endpoint = sess.get_endpoint(interface='internal',
service_type=context['svc_type'])
# Retry if we fail to get keystone endpoint
if int_endpoint:
logging.info("Successfully Retrieved Keystone Endpoint")
break
else:
logging.info("Unable to get Keystone endpoint on first attempt")
logging.info("Retrying after 10 seconds...")
time.sleep(10)
retry += 1
# Raise Execptions if we fail to get the keystone endpoint
if not int_endpoint:
raise AirflowException("Unable to get Keystone Endpoint!")
else:
return int_endpoint