7078b58038
This patch removes all the duplicated code blocks related to HTTP requests, improves the way that the exceptions are handled and adds a new base class for all the metadata providers which use HTTP(S) protocol in order to serve information. Change-Id: Ib36b0cf592310bb1e6cc4aec4fc2b9b5f29f1759 Co-Authored-By: Alexandru Tudose <atudose@cloudbasesolutions.com>
81 lines
2.7 KiB
Python
81 lines
2.7 KiB
Python
# Copyright 2012 Cloudbase Solutions Srl
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from oslo_log import log as oslo_logging
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from six.moves.urllib import error
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from cloudbaseinit import conf as cloudbaseinit_conf
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from cloudbaseinit.metadata.services import base
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from cloudbaseinit.metadata.services import baseopenstackservice as baseos
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from cloudbaseinit.utils import network
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CONF = cloudbaseinit_conf.CONF
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LOG = oslo_logging.getLogger(__name__)
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class HttpService(base.BaseHTTPMetadataService, baseos.BaseOpenStackService):
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_POST_PASSWORD_MD_VER = '2013-04-04'
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def __init__(self):
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super(HttpService, self).__init__(
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base_url=CONF.openstack.metadata_base_url,
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https_allow_insecure=CONF.openstack.https_allow_insecure,
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https_ca_bundle=CONF.openstack.https_ca_bundle)
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self._enable_retry = True
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def load(self):
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super(HttpService, self).load()
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if CONF.openstack.add_metadata_private_ip_route:
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network.check_metadata_ip_route(CONF.openstack.metadata_base_url)
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try:
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self._get_meta_data()
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return True
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except Exception:
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LOG.debug('Metadata not found at URL \'%s\'' %
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CONF.openstack.metadata_base_url)
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return False
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def _post_data(self, path, data):
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self._http_request(path, data=data)
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return True
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def _get_password_path(self):
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return 'openstack/%s/password' % self._POST_PASSWORD_MD_VER
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@property
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def can_post_password(self):
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try:
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self._get_meta_data(self._POST_PASSWORD_MD_VER)
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return True
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except base.NotExistingMetadataException:
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return False
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@property
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def is_password_set(self):
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path = self._get_password_path()
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return len(self._get_data(path)) > 0
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def post_password(self, enc_password_b64):
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try:
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path = self._get_password_path()
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action = lambda: self._post_data(path, enc_password_b64)
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return self._exec_with_retry(action)
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except error.HTTPError as ex:
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if ex.code == 409:
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# Password already set
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return False
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else:
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raise
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