Define testing runtime for 2024.2 release
Below are the changes from previous cycle testing runtime: * Removing python 3.8 support because it is EOLing in oct 2024[1] which means python 3.9 will be the minimum python version in testing runtime. * Add Python 3.12 as non voting testing. * Remove Debian 11 from Additional testing support because 2024.2 is non-SLURP release and previous SLURP release 2024.1 supported Debian 12 also which is what can be used as smooth upgrade to future SLURP release 2025.1 * Removing Nodejs from runtime: Nodejs is not a runtime requirement for Horizon instead it is one of the test dependency. It does not fit as a runtime and can be handle by Horizon team based. * For better clarity, changed the 'Best Effort' section to 'Advance/Unstable Testing'. Adding Ubuntu 24.04 in that list. [1] https://devguide.python.org/versions/ Change-Id: I77dbbf2413074ce0cddbfe6ac2f29d0ee1d71921
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.. _2024-2-testing-runtime:
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==========================
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Tested Runtimes for 2024.2
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==========================
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Linux Distribution
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==================
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At the start of the 2024.2 development cycle, the current :ref:`LTS or stable
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distribution <pti-linux-distros>` versions are:
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* Ubuntu 22.04
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* Debian 12
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Additional testing for a smooth upgrade
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---------------------------------------
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* None
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Python
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======
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It is the :doc:`policy <../../resolutions/20181024-python-update-process>` that
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each OpenStack release cycle will target the latest available version of
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Python; default Python runtime on the distributions listed above; and versions
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used in integration tests at the start of the cycle, at least until the point
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when all projects have migrated to a later version.
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Also, as per the Python testing requirements defined in :ref:`pti-python`,
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projects should avoid removing Python versions that have not reached EOL
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without a solid reason.
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Based on the criteria above, all Python-based projects must target and test
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against, at a minimum:
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* Python 3.9 (available as default in Debian 11 and Centos 9 Stream)
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Python 3.9 is the the minimum supported/required version for 2024.2.
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This does not imply that Debian 11 is the minimum supported distribution
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but it may be used for tox testing. supporting Python 3.9 does not require
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full tempest testing, but py39 unit tests are expected as a minimum
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requirement for all Python projects. The minimal requirement for
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testing jobs against Python versions above is to ensure language compatibility,
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having more extensive testing is allowed.
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* Python 3.10 (available as default in Ubuntu 22.04)
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In previous cycle testing, we have not seen many incompatible changes between
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Python 3.9 and Python 3.10. It is okay to skip running the Python 3.10 testing
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jobs assuming that anything that works on Python 3.9 and 3.11 will also
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work on 3.10.
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Note: as most tempest jobs run on Ubuntu 22.04, it is expected that python
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3.10 will be tested in tempest jobs. As such, it will be transitively tested
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for compatibility even without explicit unit and functional tests.
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* Python 3.11 (available as default in Debian 12)
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This is the upper bound of required testing for 2024.2.
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* Python 3.12 (going to be available as default in Ubuntu 24.02)
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This is not mandatory testing in the 2024.2 cycle, and there is no guarantee
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that the OpenStack 2024.2 release will support Python 3.12.
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.. warning::
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There is a high chance that we might see a lot of failure in Python 3.12
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and need a good amount of time to fix them. Adding it as non-voting is an
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effort to start testing and fixing the issues in advance. It is
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recommended to start the minimal testing in the 2024.2 cycle.
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Python 3.12 will be mandatory testing in a future release.
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More details on Python requirements can be found in :ref:`pti-python`.
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Advance/Unstable Testing
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========================
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The below list is for the distribution/python advance or unstable versions
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to test them in OpenStack CI/CD. These may not be part of integrated testing
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and may be tested as non-blockers or periodically only. The main idea is to
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test them in advance to be part of integrated testing in future
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cycles.
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Based on their testing infra setup, instability, or their future
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releases, we can modify the list during any phase of the current development
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cycle.
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* CentOS Stream 9
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* Rocky Linux 9
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* Ubuntu 24.04 (supposed to be released at the end of April 2024)
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