Difference between revisions of "ReleaseTeam/How To Release"

Latest revision as of 16:11, 13 June 2016

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You can find all tools mentioned here in the openstack-infra/release-tools repository.

Development milestone publication

PROJECT=nova
MILESTONE=juno-3

Pre-flight checks

Missing files check (for all integrated projects doing the milestone)

./repo_tarball_diff.sh $PROJECT master

Milestone tag/publication (between Tuesday and Thursday)

All the integrated projects, as well as oslo-incubator and oslo.messaging, need to follow this process sometimes during the milestone publication window.

NB: The milestone.sh script special-cases oslo-incubator (where no tarball is published) and oslo.messaging (where no tag is pushed and no tarball is published) so you can just run the same commands with them.

Get PTL signoff (for all except oslo.messaging)

• PTL confirms SHA for tag

Deferring blueprints and bugs

• Move all incomplete blueprints to the next milestone ($MILESTONE should all be 'Implemented')
• Move all incomplete bugs to the next milestone ($MILESTONE should all be 'Fix Committed'). You can use the following script:

./process_bugs.py $PROJECT --milestone $MILESTONE --settarget $NEXTMILESTONE

Tag, wait for tarball build, process FixCommitted bugs, check similarities and upload (if applicable)

./milestone.sh $MILESTONE $SHA $PROJECT

NB: for oslo.messaging $SHA is not used for tagging and is therefore ignored.

When all projects are done

Announce milestone

• Email to openstack general ML
• Twitter

Swift intermediary releases

PROJECT=swift
MILESTONE=1.8.1

Pre-flight checks

Missing files check

./repo_tarball_diff.sh swift master

Check bugs

• Look at the list of FixCommitted bugs, sanity-check that they were fixed during the period

RC1 tag

Get PTL signoff

• Get RC1 $RCSHA from PTL
• Check that the $MILESTONE changelog was committed to master

Deferring blueprints

• Move all incomplete blueprints to the next milestone ($MILESTONE should all be 'Implemented')
• Move all incomplete bugs to the next milestone ($MILESTONE should all be 'Fix Committed')

Tag RC1, wait for tarball build and process FixCommitted bugs

./swiftrc.sh $RC1SHA $MILESTONE

Announce candidate builds

• Email to openstack general ML
• Twitter

Further RCs

We generally hope that intermediary Swift releases won't generate multiple RCs, but shit sometimes happens. In that case we follow a manual process.

Set up proposed/$MILESTONE branch

• Go to review.openstack.org and create a proposed/$MILESTONE branch with the same SHA as the RC1 tag
• Backport fixes to this branch

Manually push new tag on that branch

git checkout master && git pull
git checkout -b proposed/$MILESTONE -t origin/proposed/$MILESTONE
git tag -m "Swift $MILESTONE-rc2" -s "${MILESTONE}rc2" $RC2SHA
git push gerrit ${MILESTONE}rc2

Release

Get PTL signoff

• Get confirmation that SHA=RCxSHA

Tag, wait for tarball build, check similarities and upload

./milestone.sh $MILESTONE $SHA swift

Announce release

• Email to openstack general ML & openstack announce.
• Twitter
• If a proposed/$MILESTONE branch was created, check that tags merged back to master and delete the branch (manually under review.openstack.org)

Final release

NB: The rccut.sh and rcdelivery.sh scripts special-case swift (where RC milestones are named differently) and oslo-incubator (where no tarball is published), so you can just run the same commands with them. They do not handle oslo.* libraries where tagging is external: bugs must be closed directly and stable branches created manually.

PROJECT=nova
SERIES=icehouse
FINALSWIFT=2.0.0
NEXTSERIES=juno

Pre-flight checks

Create next series

• Create $NEXTSERIES series in Launchpad
• Set status to Future, Set release manager

Check RC1 has 'RC1' as short name

• $NAME-rc1 should have 'RC1' as short milestone name

Missing files check

./repo_tarball_diff.sh $PROJECT master

Check bugs

• Look at the list of FixCommitted bugs, sanity-check that they were fixed during the period

Check for translations /requirements updates

• Branch should have a relatively recent translation update
• Branch should have a relatively recent requirements update

stable/$SERIES branch cut (switch master to next version)

Get PTL signoff

• This should be done close to the RC1 cut
• For Swift, check that the $FINALSWIFT changelog was committed to master

Push new version to master

• Prepare change which sets next version on master branch in setup.cfg (except for Swift which doesn't set preversions)
• Get it approved by core and make sure it's merged
• Note down SHA = stable/$SERIES cut commit id (the commit just before the version bump)

Create stable/$SERIES branch from previous commit, wait for tarball, process FixCommitted bugs

./rccut.sh $SHA $SERIES $PROJECT [$FINALSWIFT]

Set $NEXTSERIES as active development

• Make $NEXTSERIES the "Development focus" for $PROJECT
• Set $NEXTSERIES status to "Active development"
• Set $SERIES status to "Pre-release freeze"

RC1 cut

Get PTL signoff

• Check that the branch contents are ready to go from PTL perspective (backport any last-minute bugfix)

Tag, wait for tarball, check similarities and upload

./rcdelivery.sh $SERIES rc1 $PROJECT [$FINALSWIFT]

Announce RC1

• Email to openstack general ML
• Twitter

Unfreeze requirements

• (should be doublechecked since we changed things here)
• Create stable/$SERIES for openstack/requirements
• Consider master branch unfrozen
• Email to openstack dev ML

Further RC-X windows

Decision to open next RC window

• Consider $SERIES-rc-potential bugs and discuss with PTL if they warrant a respin

Create RC-X milestone page

• Create the RC-X milestone page (short name = RCX) on Launchpad
• Target relevant bugs

Refine/fix bugs

• Track bug fixes
• Facilitate backports

Check for translations/requirements updates

• Branch should have a relatively recent translation update. This requires a manual script to be run.
• Requirements job (as proposed automatically when stable/* is created) should be merged if it exists

Get PTL signoff

• Get confirmation that RC is releasable from PTL perspective

Tag, wait for tarball, check similarities and upload

./rcdelivery.sh $SERIES rcX $PROJECT [$FINALSWIFT]

Announce RC-X

• Email to openstack general ML
• Twitter

Final release

Create final release milestone page

• Create the $VERSION final milestone page on Launchpad

Push all bugs and blueprints to final page

./consolidate_release_page.py $PROJECT $SERIES $VERSION

This can take a very long time. For large bugs you will have to run it multiple times. Verify all intermediary milestone pages are now empty.

Tag, wait for tarball, check similarities and upload

./rcdelivery.sh $SERIES final $PROJECT [$FINALSWIFT]

Extra similarity check

./similar_tarballs.sh $PROJECT $VERSION.rcX $VERSION

Add release notes link to release page

• Add the "See http://wiki.openstack.org/ReleaseNotes/$SERIES" note to the Release note on the download page.

Announce release

• openstack-announce, openstack general ML
• Twitter etc.

Post-release

Update wiki pages

• http://wiki.openstack.org/Releases
• https://wiki.openstack.org/wiki/Getting_The_Code

Create openstack/openstack stable branch

• This needs to be done before any stable branch is created
• Go to review.openstack.org openstack/openstack branch admin panel
• New branch: "stable/$SERIES", Initial revision: "HEAD"
• Push update to .gitmodules switching all "." to "stable/$SERIES"

Switch dev focus

• Switch $SERIES to current stable release, set release manager = openstack-stable-maint
• Switch previous stable release (series - 1) to Obsolete

Clean rc-potential tags

• Search for https://bugs.launchpad.net/openstack/+bugs?field.tag=$SERIES-rc-potential
• Remove tag where found

Enable stable/$SERIES

• (should be doublechecked since we changed things here)
• Add stable/$SERIES periodic jobs, example for Icehouse https://review.openstack.org/115933

Push .1 version to stable/$SERIES branch

git checkout -t -b stable/$SERIES origin/stable/$SERIES
git checkout -b stable-$SERIES
vi setup.cfg # set to $VERSION.1
vi .gitreview # set defaultbranch=stable/$SERIES
git commit -a
git review stable/$SERIES

NB: For Swift, it still makes sense to commit the the defaultbranch patch (even if you don't do the setup.cfg version bump)