ceilometer/ceilometer/polling/discovery/non_openstack_credentials_d...

60 lines
2.2 KiB
Python

# Copyright 2014-2015 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.
from oslo_log import log
from ceilometer.polling.discovery.endpoint import EndpointDiscovery
import six.moves.urllib.parse as urlparse
import requests
LOG = log.getLogger(__name__)
class NonOpenStackCredentialsDiscovery(EndpointDiscovery):
"""Barbican secrets discovery
Discovery that supplies non-OpenStack credentials for the dynamic
pollster sub-system. This solution uses the EndpointDiscovery to
find the Barbican URL where we can retrieve the credentials.
"""
BARBICAN_URL_GET_PAYLOAD_PATTERN = "/v1/secrets/%s/payload"
def discover(self, manager, param=None):
barbican_secret = "No secrets found"
if not param:
return [barbican_secret]
barbican_endpoints = super(NonOpenStackCredentialsDiscovery,
self).discover("key-manager")
if not barbican_endpoints:
LOG.warning("No Barbican endpoints found to execute the"
" credentials discovery process to [%s].",
param)
return [barbican_secret]
else:
LOG.debug("Barbican endpoint found [%s].", barbican_endpoints)
barbican_server = next(iter(barbican_endpoints))
barbican_endpoint = self.BARBICAN_URL_GET_PAYLOAD_PATTERN % param
babrican_url = urlparse.urljoin(barbican_server, barbican_endpoint)
LOG.debug("Retrieving secrets from: %s.", babrican_url)
resp = manager._keystone.session.get(babrican_url, authenticated=True)
if resp.status_code != requests.codes.ok:
resp.raise_for_status()
return [resp._content]