python-novaclient/novaclient/v2/versions.py
Takashi NATSUME 0414bab3d3 Add return-request-id-to-caller function(3/5)
Add return-request-id-to-caller function to
resources and resource managers in the following files.
The methods in the resource class and resource manager return
a wrapper class that has 'request_ids' property.
The caller can get request ids of the callee via the property.

* novaclient/v2/keypairs.py
* novaclient/v2/limits.py
* novaclient/v2/networks.py
* novaclient/v2/quota_classes.py
* novaclient/v2/quotas.py
* novaclient/v2/security_group_default_rules.py
* novaclient/v2/security_group_rules.py
* novaclient/v2/security_groups.py
* novaclient/v2/server_groups.py
* novaclient/v2/services.py
* novaclient/v2/usage.py
* novaclient/v2/versions.py

Co-authored-by: Ankit Agrawal <ankit11.agrawal@nttdata.com>
Change-Id: I9203f70a0eef5686b590fbff35563f2cf8b6f586
Implements: blueprint return-request-id-to-caller
2016-01-28 11:22:00 +00:00

105 lines
4.1 KiB
Python

# Copyright 2014 NEC Corporation. All 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.
"""
version interface
"""
from six.moves import urllib
from novaclient import base
from novaclient import client
from novaclient import exceptions as exc
class Version(base.Resource):
"""
Compute REST API information
"""
def __repr__(self):
return "<Version>"
class VersionManager(base.ManagerWithFind):
resource_class = Version
def _is_session_client(self):
return isinstance(self.api.client, client.SessionClient)
def _get_current(self):
"""Returns info about current version."""
# TODO(sdague): we've now got to make up to 3 HTTP requests to
# determine what version we are running, due to differences in
# deployments and versions. We really need to cache the
# results of this per endpoint and keep the results of it for
# some reasonable TTL (like 24 hours) to reduce our round trip
# traffic.
if self._is_session_client():
try:
# Assume that the value of get_endpoint() is something
# we can get the version of. This is a 404 for Nova <
# Mitaka if the service catalog contains project_id.
#
# TODO(sdague): add microversion for when this will
# change
url = "%s" % self.api.client.get_endpoint()
return self._get(url, "version")
except exc.NotFound:
# If that's a 404, we can instead try hacking together
# an endpoint root url by chopping off the last 2 /s.
# This is kind of gross, but we've had this baked in
# so long people got used to this hard coding.
#
# NOTE(sdague): many service providers don't really
# implement GET / in the expected way, if we do a GET
# /v2 that's actually a 300 redirect to
# /v2/... because of how paste works. So adding the
# end slash is really important.
url = "%s/" % url.rsplit("/", 1)[0]
return self._get(url, "version")
else:
# NOTE(andreykurilin): HTTPClient doesn't have ability to send get
# request without token in the url, so `self._get` doesn't work.
all_versions = self.list()
url = self.client.management_url.rsplit("/", 1)[0]
for version in all_versions:
for link in version.links:
if link["href"].rstrip('/') == url:
version.append_request_ids(all_versions.request_ids)
return version
def get_current(self):
try:
return self._get_current()
except exc.Unauthorized:
# NOTE(sdague): RAX's repose configuration blocks access to the
# versioned endpoint, which is definitely non-compliant behavior.
# However, there is no defcore test for this yet. Remove this code
# block once we land things in defcore.
return None
def list(self):
"""List all versions."""
version_url = None
if self._is_session_client():
# NOTE: "list versions" API needs to be accessed without base
# URI (like "v2/{project-id}"), so here should be a scheme("http",
# etc.) and a hostname.
endpoint = self.api.client.get_endpoint()
url = urllib.parse.urlparse(endpoint)
version_url = '%s://%s/' % (url.scheme, url.netloc)
return self._list(version_url, "versions")