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Move some docs to osism.github.io (#1119)
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Signed-off-by: Christian Berendt <[email protected]>
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berendt authored Oct 30, 2023
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Expand Up @@ -56,174 +56,12 @@ The documentation has been moved: https://osism.github.io/docs/guides/upgrade-gu
How do we release?
==================

Currently we do a major release every 6 months. Minor releases we do when needed and
about every 2 weeks.

In a minor release, only updates, bug fixes, etc. take place. There are also no major
upgrades of included components such as OpenStack, Keycloak or Ceph in a minor release.

It is possible to jump from any minor version within a major version to higher minor
versions without any intervention.

Deprecations, removals, etc. take place in a major release. New mandatory features are
also added in a major release. Upgrades of the included components can also take place
during a major release (e.g. OpenStack Xena -> OpenStack Yoga).

It is possible to jump from the previous major version to the next major version. It may
be that manual intervention is necessary. For example, configuration parameters may need
to be added or services that no longer exist may need to be removed.

The documentation has been moved: https://osism.github.io/docs/advanced-guides/developer-guide/#how-do-we-release

How do you do a release?
========================

Pre-release
-----------

1. On all repositories that are used, check that the versions to be used have an
appropriate version tag (e.g. ``v0.20230308.0``).

.. code-block:: none
osism/ansible-collection-commons
osism/ansible-collection-services
osism/ansible-collection-validations
osism/ansible-defaults
osism/ansible-playbooks
osism/ansible-playbooks-manager
osism/cf-generics
osism/kolla-operations
osism/python-osism
2. Copy the ``latest`` directory. The release to be created is used as the new name.

.. code-block:: none
latest -> 6.0.0b
3. Remove all ``# renovate`` lines from the ``base.yml`` file.

4. Remove all Ceph and OpenStack releases that should not be part of the pre-release.
There is only one OpenStack version and one Ceph version per (pre-)release.

5. Ensure that the symlinks ``openstack.yml`` and ``ceph.yml`` point to the releases
to be used in this pre-release.

.. code-block:: none
base.yml
ceph-pacific.yml
ceph.yml -> ceph-pacific.yml
openstack-zed.yml
openstack.yml -> openstack-zed.yml
6. Run ``src/prepare-release.py``.

.. code-block:: none
RELEASE=6.0.0b python3 src/prepare-release.py
7. Do the steps from the ``Stable release`` starting from the 4th step.

Stable release
--------------

1. Copy the directory of the last pre-release or the previous stable release.
The release to be created is used as the new name.

.. code-block:: none
5.0.0a -> 5.0.0b
5.0.0b -> 5.0.0
5.0.0 -> 5.1.0
5.1.0 -> 5.2.0
5.2.0 -> 5.3.0
2. Change all necessary versions in the YAML files within the new directory.
In any case, the version of the pre-release or the version of the stable
release must be replaced by the release to be created.

3. The release to be created is submitted as a pull request as usual and then
merged.

4. Add a tag with the name of the new release to the listed repositories.

.. code-block:: none
osism/container-image-ceph-ansible
osism/container-image-inventory-reconciler
osism/container-image-osism-ansible
osism/container-images-kolla
5. After completing the creation of the images in repository ``container-images-kolla``,
the file ``images.yml`` must be added to repository ``osism/sbom`` as
``5.0.0/openstack.yml`` (instead of ``5.0.0``, the corresponding release is used).
The file is available as a build artefact of the ``Release container images`` action
on the created tag.

Before the file is added, it is enhanced with the checksums of the images. The script
is available in the ``osism/sbom`` repository.

.. code-block:: none
VERSION=5.0.0 python3 scripts/add-image-checksum.py
6. If ``5.0.0/openstack.yml`` is present in ``osism/sbom``, repository
``osism/container-image-kolla-ansible`` can be tagged like the other
repositories before.

7. Add the created SPDX files from the listed repositories to the ``osism/sbom`` repository.
The file are available as build artefacts of the ``Build container image`` action
on the created tags.

.. code-block:: none
osism/container-image-ceph-ansible
osism/container-image-kolla-ansible
osism/container-image-osism-ansible
8. Add and run temporary CI jobs in ``osism/testbed`` that uses the pre-release.

.. code-block:: yaml
- job:
name: testbed-deploy-stable-next
parent: testbed-deploy
vars:
manager_version: "5.0.0a"
refstack: true
nodeset: testbed-orchestrator
- job:
name: testbed-upgrade-stable-next
parent: testbed-deploy
vars:
manager_version: "4.2.0"
manager_version_next: "5.0.0a"
nodeset: testbed-orchestrator
9. Test. Test. Test.

10. Prepare a PR to change the stable version to the new stable version in the following Zuul jobs
in the ``osism/testbed`` repository. All tests there must pass successfully before the tag is
set on this repository in the next step. The temporary CI jobs (step 8) are removed again with
this PR.

.. code-block:: none
testbed-deploy-stable
testbed-update-stable
testbed-update-stable
testbed-upgrade-stable
11. Add a new release notes file to ``doc/sorce/notes``. Generate the versions table with the
help of the ``release-table.py`` script in the ``osism/sbom`` repository.

12. After all known issues are documented, a corresponding tag, e.g. ``v5.0.0``, is set on the
release repository.

13. As the last of the release process, the previously prepared PR is merged on the
``osism/testbed`` repository to change the stable version.
The documentation has been moved: https://osism.github.io/docs/advanced-guides/developer-guide/#how-do-you-do-a-release

Questions & Answers
===================
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