5bfce045a3
Remove steps in the release process around creating temporary ACLs for new stable branches and switching Gerrit group contents around release time. This implements the plan presented and discussed at: http://lists.openstack.org/pipermail/openstack-dev/2018-March/128731.html Change-Id: I2d211af54dc4f170172757a82dc1e6c55d2ab504
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===================
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Release Processes
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===================
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This document describes the relative ordering and rough timeline for
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all of the steps related to preparing the release.
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Before PTG (after closing previous release)
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===========================================
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1. Set up the release schedule for the newly opened cycle by creating
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the required pages in openstack/releases.
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2. Update the link to the documentation on the newly opened cycle page
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to point to the right place on docs.openstack.org.
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3. Create the $series-relmgt-plan and $series-relmgt-tracking
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etherpads.
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4. Use ``init-series`` to create stub deliverable files based on the
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contents of the previous release.
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Between Summit and Milestone-1
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==============================
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1. Establish liaisons by having them update
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https://wiki.openstack.org/wiki/CrossProjectLiaisons with their
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contact information.
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2. Email PTLs directly one time to explain the use of the "[release]"
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email tag on the openstack-dev list.
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3. Encourage liaisons to ensure that their release model is set
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properly before the first milestone.
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4. Start weekly countdown emails, sent on Thursday afternoon (US)
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or Friday morning (EU/APAC) with information needed about the
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following week (deadlines, instructions, etc.).
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5. The week before Milestone-1, include a reminder about completing
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the responses to community-wide goals in the countdown email.
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Milestone-1
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===========
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1. Include the deadline for the milestone in the countdown emails but
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do not send extra reminders to liaisons. Missing the first
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milestone isn't important in terms of the release, so we want to
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encourage everyone to pay attention on their own.
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Between Milestone-1 and Milestone-2
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===================================
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1. Follow up with PTLs and liaisons for projects that missed the first
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milestone.
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2. Use the countdown emails to list which projects have not done any
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stable release yet, to encourage them to do so.
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3. Use the countdown emails to list which intermediary-released (or
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independent) projects haven't done a release yet. Remind teams that
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we need at least one library release before milestone-2.
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4. The week before Milestone-2 include a reminder of the deadline in
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the countdown emails. Mention the MembershipFreeze deadline as well.
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List teams that still haven't done a library release yet and remind
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them of the milestone-2 deadline.
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Milestone-2
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===========
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1. Run the following to get a report of which libraries have unreleased
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changes::
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tools/list_library_unreleased_changes.sh
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Filter out libraries that have insignificant changes (Updates to .gitreview,
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etc.) and include list in the weekly countdown email.
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Between Milestone-2 and Milestone-3
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===================================
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1. Follow up with PTLs and liaisons for projects that missed the second
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milestone, or still haven't done their library releases yet.
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2. In the countdown email immediately after Milestone-2, include a
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reminder about the various freezes that happen around Milestone-3.
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3. Two weeks before Milestone-3, include a reminder about the final
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library release freeze coming the week before Milestone-3.
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1. Run the command from milestone-2 again to get a list of libraries::
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tools/list_library_unreleased_changes.sh
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2. Include list of unreleased libraries in the email to increase visibility.
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4. Two weeks before Milestone-3, prepare other teams to the final release
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rush.
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1. Ask the release liaisons for the affected teams to update the
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contents of their $project-stable-maint groups, as that group
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will control the stable/$series branch prior to release. They
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should reach out to the stable-maint-core group for additions.
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2. Notify the Infrastructure team to `generate
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<https://docs.openstack.org/infra/system-config/signing.html#generation>`_
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an artifact signing key (but not replace the current one yet), and
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begin the attestation process.
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5. Two weeks before milestone 3, warn cycle-with-intermediary projects
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without any releases that the release team will tag HEAD of master
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for their project if they have not prepared a release by the
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following week so that there is a fallback release to use for the
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cycle and as a place to create their stable branch.
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Final Library Release (week before Milestone-3)
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===============================================
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1. Release libraries as quickly as possible this week to ensure they
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are all done before the freeze. Consider relaxing the "not on
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Friday" release rule if absolutely necessary.
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2. Remind liaisons to prepare releases for client libraries at
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Milestone-3.
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3. Update the feature list and allowed stable branch names in
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devstack-gate for the new stable branch. For
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example, https://review.openstack.org/362435 and
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https://review.openstack.org/363084
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4. Ensure that final releases for libraries also include the
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specification to create the stable/$series branch.
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5. Tag HEAD of master for any cycle-with-intermediary project without
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any releases. Do not create branches for non-library projects.
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Milestone-3
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===========
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1. Verify that all projects following release:cycle-with-intermediary
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have prepared at least one release for the cycle.
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2. Freeze changes to ``openstack/requirements`` by applying -2 to all
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open patches. Ensure that reviewers do not approve changes created
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by the proposal bot.
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3. Ensure the stable/$series branch is requested with each client
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library final release.
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4. Remind PTLs/liaisons that master should be frozen except for bug
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fixes and feature work with FFEs.
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5. Remind PTL/liaisons to start preparing "prelude" release notes as
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summaries of the content of the release so that those are merged
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before their first release candidate.
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6. Freeze all cycle-based library releases except for release-critical
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bugs. Independently-released libraries may still be released, but
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constraint or requirement changes will be held until after the freeze
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period.
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7. Include a reminder about completing the responses to community-wide
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goals in the countdown email.
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Between Milestone-3 and RC1
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===========================
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1. Encourage liaisons to wait as long as possible to create RC1 to
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avoid immediately having to create an RC2 with a new bug fix.
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2. Encourage release:independent projects to add the history for any
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releases not yet listed in their deliverable file.
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3. Remind projects using all release models to prepare their new
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stable branch request around the RC1 target date.
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As soon as grenade is updated for the new branch (see the RC1
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instructions that follow), projects without stable branches may
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start seeing issues with their grenade jobs because without the
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stable branch the branch selection will cause the jobs to run
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master->master instead of previous->master. At the end of Ocata
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this caused trouble for the Ironic team, for example.
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4. Warn cycle-with-intermediary projects that have releases more than
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2 months old that we will use their existing release as a point for
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branching if they have not prepared a newer release by the RC1
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deadline.
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RC1
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===
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1. Ensure all RC1 tag requests include the info to have the
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stable/$series branch created, too.
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Branches for cycle-trailing and cycle-with-intermediary projects
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should be created when the PTL/liaison are ready, and not
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necessarily for RC1 week.
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2. After the minimum set of projects used by devstack have been branched, the
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devstack branch can be created. Devstack doesn't push a tag at RC1 it is
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just branched off of HEAD
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3. After devstack is branched a grenade branch can be created. As with
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devstack it will branch from HEAD instead of a tag.
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4. Update the default branch for devstack in the new stable
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branch. For example, https://review.openstack.org/#/c/493208/
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5. Update the grenade settings in devstack-gate for the new branch. For
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example, https://review.openstack.org/362438.
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6. For translations, create stable-$series versions in the Zanata
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translation server on https://translate.openstack.org for all
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projects that the translation team wants to handle. Create new
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translation-jobs-$series periodic jobs to import translations from
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the Zanata translation server and propose them to projects, add
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these jobs to all projects that have a stable-$series version.
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Note this work is done by translation team.
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7. After all cycle-with-milestone projects have their branches
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created, someone from the requirements core team (preferably the
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requirements PTL) needs to propose an update the deliverable file to
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create the stable/$series branch for ``openstack/requirements``.
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Then announce that the requirements freeze is lifted from master.
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Note that we wait until after the other projects have branched to
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create the branch for requirements because tests for the stable
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branches of those projects will fall back to using the master
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branch of requirements until the same stable branch is created,
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but if the branch for the requirements repo exists early the
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changes happening in master on the other projects will not use it
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and we can have divergence between the requirements being tested
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and being declared as correct.
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8. In the tempest repo, create new branch specific jobs for our two branchless
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projects, devstack-gate and tempest. Configure tempest to run them on all
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changes, voting. Configure tempest to run them as periodic bitrot jobs as
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well. All this can be done in one tempest patch, like for example, see
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https://review.openstack.org/521888.
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Configure devstack-gate to run the new jobs in check pipeline only,
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non-voting, for example see https://review.openstack.org/545144.
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9. Add the new branch to the list of branches in the periodic-stable job
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templates in openstack-zuul-jobs. For example, see
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https://review.openstack.org/545268/.
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Between RC1 and Final
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=====================
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Try to avoid creating more than 3 release candidates so we are not
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creating candidates that consumers are then trained to ignore. Each
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release candidate should be kept for at least 1 day, so if there is a
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proposal to create RCX but clearly a reason to create another one,
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delay RCX to include the additional patches. Teams that know they will
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need additional release candidates can submit the requests and mark
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them WIP until actually ready, so the release team knows that more
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candidates are coming.
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1. Ensure that all projects that are publishing release notes have the
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notes link included in their deliverable file. See
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``tools/add_release_note_links.sh``.
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2. Encourage liaisons to merge all translation patches.
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3. When all translations and bug fixes are merged for a project,
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prepare a new release candidate.
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4. Ensure that the final release candidate for each project is
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prepared at least one week before the final release date.
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5. After final releases for release:cycle-with-intermediary projects
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are tagged, create their stable branches.
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6. On the morning of the deadline for final release candidates, check
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the list of unreleased changes for milestone projects and verify
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with the PTLs and liaisons that they are planning a release or that
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they do not need one.
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In the release-tools repository working directory, run::
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$ ./list_unreleased_changes.sh stable/newton $(list-repos --tag release:cycle-with-milestones) 2>&1 | tee unreleased.log
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7. As soon as the last release candidate is tagged and the freeze
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period is entered, use ``propose-final-releases`` to tag the
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existing most recent release candidates as the final release for
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projects using the cycle-with-milestone model.
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8. Ask liaisons and PTLs of milestone-based projects to review and +1
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the final release proposal from the previous step so their approval
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is included in the metadata that goes onto the signed tag.
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9. The week before final release test the release process using the
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openstack/release-test repository.
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10. Notify the documentation team that it should be safe to apply
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their process to create the new release series landing pages for
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docs.openstack.org. Their process works better if they wait until
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most of the projects have their stable branches created, but they
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can do the work before the final release date to avoid having to
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synchronize with the release team on that day.
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Final Release
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=============
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1. Approve the final release patch created earlier.
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2. Run the missing-releases script to check for missing tarballs on the
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release page before the announcement::
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tox -e venv -- missing-releases --series $SERIES
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3. Mark series as released on releases.o.o, by updating doc/source/index.rst
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and doc/source/$series/index.rst.
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See https://review.openstack.org/#/c/381006 for an example.
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4. Update the default series name in
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``openstack/releases/openstack_releases/defaults.py`` to use the
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new series name.
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5. Send release announcement email to
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``openstack-announce@lists.openstack.org``, based on
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``templates/final.txt``. Coordinate the timing of the email with
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the press release from the Foundation staff.
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6. Send an email to the openstack-dev list to point to the official
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release announcement, and declare ``openstack/releases`` unfrozen for
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releases on the new series.
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Post-Final Release
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==================
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1. The week after the final release, process any late or blocked
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release requests for deliverables for any branch (treating the new
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series branch as stable).
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2. The week after the final releases for milestone-based projects are
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tagged, use ``propose-final-releases --all`` to tag the existing
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most recent release candidates as the final release for projects
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using the cycle-trailing model.
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3. Ask liaisons and PTLs of cycle-trailing projects to review and +1
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the final release proposal from the previous step so their approval
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is included in the metadata that goes onto the signed tag.
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cycle-trailing Final Release
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============================
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1. Two weeks after the final release for milestone-based projects,
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approve the final release patch created earlier.
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