tripleo-heat-templates/docker_config_scripts/nova_wait_for_placement_service.py
Juan Antonio Osorio Robles 55188215d9 Use internal interface for keystone in "wait for placement" script
Instead of trying to go to the "admin" endpoint, which is
keystoneclient's default. We instead try to use the internal endpoint.

This reduces our usage of the keystone admin endpoint.

Change-Id: Ib2fe159d6e2503db834ae68d9a60c627a15b7b5e
2019-01-22 18:48:39 +02:00

111 lines
3.8 KiB
Python
Executable File

#!/usr/bin/env python
#
# Copyright 2018 Red Hat Inc.
#
# 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.
# shell script to check if nova API DB migrations finished after X attempts.
# Default max is 60 iterations with 10s (default) timeout in between.
from __future__ import print_function
import logging
import os
import re
import sys
import time
from keystoneauth1.identity import v3
from keystoneauth1 import session
from keystoneclient.v3 import client
import requests
from six.moves.configparser import SafeConfigParser
logging.basicConfig(stream=sys.stdout, level=logging.DEBUG)
LOG = logging.getLogger('nova_wait_for_placement_service')
iterations = 60
timeout = 10
nova_cfg = '/etc/nova/nova.conf'
if __name__ == '__main__':
if os.path.isfile(nova_cfg):
config = SafeConfigParser()
config.read(nova_cfg)
else:
LOG.error('Nova configuration file %s does not exist', nova_cfg)
sys.exit(1)
# get keystone client with details from [placement] section
auth = v3.Password(
user_domain_name=config.get('placement', 'user_domain_name'),
username=config.get('placement', 'username'),
password=config.get('placement', 'password'),
project_name=config.get('placement', 'project_name'),
project_domain_name=config.get('placement', 'user_domain_name'),
auth_url=config.get('placement', 'auth_url')+'/v3')
sess = session.Session(auth=auth, verify=False)
keystone = client.Client(session=sess, interface='internal')
iterations_endpoint = iterations
placement_endpoint_url = None
while iterations_endpoint > 1:
iterations_endpoint -= 1
try:
# get placement service id
placement_service_id = keystone.services.list(
name='placement')[0].id
# get placement endpoint (valid_interfaces)
placement_endpoint_url = keystone.endpoints.list(
service=placement_service_id,
interface=config.get('placement', 'valid_interfaces'))[0].url
if not placement_endpoint_url:
LOG.error('Failed to get placement service endpoint!')
else:
break
except Exception as e:
LOG.exception('Retry - Failed to get placement service endpoint:')
time.sleep(timeout)
if not placement_endpoint_url:
LOG.error('Failed to get placement service endpoint!')
sys.exit(1)
# we should have CURRENT in the request response from placement:
# {"versions": [{"status": "CURRENT", "min_version": "1.0", "max_version":
# "1.29", "id": "v1.0", "links": [{"href": "", "rel": "self"}]}]}
response_reg = re.compile('.*CURRENT,*')
while iterations > 1:
iterations -= 1
try:
r = requests.get(placement_endpoint_url+'/', verify=False)
if r.status_code == 200 and response_reg.match(r.text):
LOG.info('Placement service up! - %s', r.text)
sys.exit(0)
break
else:
LOG.info('response - %r', r)
LOG.info('Placement service not up - %s, %s',
r.status_code,
r.text)
except Exception as e:
LOG.exception('Error query the placement endpoint:')
time.sleep(timeout)
sys.exit(1)
# vim: set et ts=4 sw=4 :