44e6949b0c
If we negotiate an API microversion in the ironiccclient, cache this value so that we don't need to re-negotiate it again for the next API call, if the user doesn't specify a version. We cache the version for a particular ironic instance in a temporary file, one per server, in a multi-user, multi-server safe-way - deleting old files once they expire, so only the latest is kept. Depends-On: Icb29fdc92ecd54e388b7c16899070572458308da Change-Id: I0232bc611789fb96491d855020042e23ba0c4fab Blueprint: version-caching
57 lines
2.3 KiB
Python
57 lines
2.3 KiB
Python
# Copyright 2012 OpenStack LLC.
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# All Rights Reserved.
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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 ironicclient.common import filecache
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from ironicclient.common import http
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from ironicclient.common.http import DEFAULT_VER
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from ironicclient.v1 import chassis
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from ironicclient.v1 import driver
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from ironicclient.v1 import node
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from ironicclient.v1 import port
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class Client(object):
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"""Client for the Ironic v1 API.
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:param string endpoint: A user-supplied endpoint URL for the ironic
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service.
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:param function token: Provides token for authentication.
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:param integer timeout: Allows customization of the timeout for client
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http requests. (optional)
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"""
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def __init__(self, *args, **kwargs):
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"""Initialize a new client for the Ironic v1 API."""
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if kwargs.get('os_ironic_api_version'):
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kwargs['api_version_select_state'] = "user"
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else:
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# If the user didn't specify a version, use a cached version if
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# one has been stored
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host, netport = http.get_server(args[0])
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saved_version = filecache.retrieve_data(host=host, port=netport)
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if saved_version:
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kwargs['api_version_select_state'] = "cached"
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kwargs['os_ironic_api_version'] = saved_version
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else:
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kwargs['api_version_select_state'] = "default"
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kwargs['os_ironic_api_version'] = DEFAULT_VER
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self.http_client = http._construct_http_client(*args, **kwargs)
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self.chassis = chassis.ChassisManager(self.http_client)
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self.node = node.NodeManager(self.http_client)
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self.port = port.PortManager(self.http_client)
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self.driver = driver.DriverManager(self.http_client)
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