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# Copyright (c) 2014 IBM Corp.
# 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.
"""Middleware that ensures x-compute-request-id
Nova's notion of request-id tracking predates any common idea, so the
original version of this header in OpenStack was
x-compute-request-id. Eventually we got oslo, and all other projects
implemented this with x-openstack-request-id.
However, x-compute-request-id was always part of our contract. The
following migrates us to use x-openstack-request-id as well, by using
the common middleware.
"""
from oslo_middleware import request_id
HTTP_RESP_HEADER_REQUEST_ID = 'x-compute-request-id'
class ComputeReqIdMiddleware(request_id.RequestId):
compat_headers = [HTTP_RESP_HEADER_REQUEST_ID]
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