51 lines
2.3 KiB
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51 lines
2.3 KiB
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Licensing requirements
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========================
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Official OpenStack projects need to follow a number of rules when it comes
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to licensing.
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In order to be considered for inclusion in the
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:ref:`tag-tc:approved-release`, the project must be licensed under `Apache
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License, Version 2.0`_ (ASLv2).
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.. _Apache License, Version 2.0: http://www.apache.org/licenses/LICENSE-2.0
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**OpenStack projects and libraries** (produced by official OpenStack project
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teams) should generally be licensed under ASLv2, and otherwise must be
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licensed under a license supported by the `Contributor License
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Agreement`_ (CLA) which allows redistribution by the OpenStack
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Foundation under ASLv2 (currently only the MIT and both forms of the
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BSD license meet this requirement). In particular, service projects
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are recommended to *always* pick ASLv2 so that they may be included in
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the TC-approved release in the future.
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.. _Contributor License Agreement: https://wiki.openstack.org/wiki/How_To_Contribute#Contributor_License_Agreement
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In order to be acceptable as dependencies of OpenStack projects,
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**external libraries** (produced and published by 3rd-party developers)
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must be licensed under an `OSI-approved license`_ that does not restrict
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distribution of the consuming project. The list of acceptable licenses
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includes ASLv2, BSD (both forms), MIT, PSF, LGPL, ISC, and MPL. Licenses
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considered incompatible with this requirement include GPLv2, GPLv3, and AGPL.
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[A]GPL libraries used during validation or testing phases of development fall
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into a gray area - they are not presumed to be compatible or incompatible and
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instead are reviewed on a case by case basis. Please use the `legal-discuss`_
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mailing list to bring up any such cases.
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.. _legal-discuss: http://lists.openstack.org/cgi-bin/mailman/listinfo/legal-discuss
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**Projects run as part of the OpenStack Infrastructure** (in order to
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*produce* OpenStack software) may be licensed under any `OSI-approved license`_.
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This includes tools that are run with or on OpenStack projects only
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during validation or testing phases of development (e.g., a source
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code linter).
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.. _OSI-approved license: http://opensource.org/licenses/alphabetical
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Other licenses (not explicitly listed in this document) may be considered
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in the future on a case-by-case basis by the Technical Committee, with the
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help of the OpenStack Foundation legal counsel.
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