35 lines
1.4 KiB
ReStructuredText
35 lines
1.4 KiB
ReStructuredText
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Copyright 2011-2012 OpenStack Foundation
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All Rights Reserved.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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=======================
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Middleware Architecture
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=======================
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Abstract
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========
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The Keystone middleware architecture supports a common authentication protocol
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in use between the OpenStack projects. By using Keystone as a common
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authentication and authorization mechanism, the OpenStack project can plug in
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to existing authentication and authorization systems in use by existing
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environments.
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The auth_token middleware is no longer hosted in Keystone and has moved to the
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keystonemiddleware project. The `documentation regarding authentication
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middleware`_ can be found there.
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.. _`documentation regarding authentication middleware`: http://docs.openstack.org/developer/keystonemiddleware/middlewarearchitecture.html
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