Deployments

Some notes about the deployment windows

• It is good to ask for a little more time than what you think you'll need to do all of the deployment and testing; you never know what issues will come up and slow you down.
  • Generally, we have found one hour windows to be a good size for most things.
• Deployment windows are 'pinned' to the time in San Francisco and thus the UTC time will change due to the United States observance of Daylight Savings Time as appropriate.
• SWAT deploys happen twice daily (8am and 4pm Pacific) and are for pushing out simple, quick, and low risk changes (as assessed by you, members of the SWAT team, and the Release Manager).

For detailed instructions on how to actually deploy code to the Wikimedia servers, see How to deploy code.

This page tracks planned deployments of software to the Wikimedia Foundation servers that host the various Wikimedia project wikis (Wikipedias, Wiktionaries, Wikiversities, Wikimedia Commons, etc.).

Cadence

The Wikimedia Foundation currently follows a one-week deploy cadence. This means that there is one week between updates to any one Wikimedia project site wiki (excluding urgent fixes, of course).

Scheduling

To schedule a deploy window, or if you see a potential conflict with your upcoming deployment, please e-mail Greg Grossmeier.

Inclusion criteria

See the list at Inclusion criteria for the kinds of changes that require scheduling here.

Communicating

• Every major or new feature deployment should be announced on the Wikimedia blog and/or Tech News (use the "user-notice" tag on Phabricator) and/or global on-wiki delivery. For routine and maintenance deployments, listing your change here is enough.
• Changes that are liable to affect site performance or infrastructure should be announced on the ops mailing list. This includes anything that alters caching behavior, introduces cookies, substantially increases the static asset payload, or adds new and complicated query patterns.

Near-term

Week of March 14th

• Week of:
  • March 16th: Day long switching default search to completion suggester - Erik (ebernhardson)

By day

Time	Component	Deployer	Changes
Monday, March 14
15:00–16:00 UTC # 08:00–09:00 PDT	Morning SWAT (Max 8 patches)	Brad (anomie), Chad (ostriches), Tyler (thcipriani), Mark (marktraceur), or Katie (aude)	Matt (matt_flaschen) [wmf.16] 276916 (deploy commands) Echo fatal fix Kartik Mistry (kart_) [wmf.16] 277195 (deploy commands) Better announce new optional MT services available James_F [wmf.16] 277183 (deploy commands) Update VE core submodule to wmf/1.27.0-wmf.16 HEAD (5019e21) Requesting Developer (irc-nickname) Gerrit link to backport or config change
20:00–21:00 UTC # 13:00–14:00 PDT	Services – Parsoid / OCG / Citoid / Mobileapps / …	Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Bernd (bearND) and Michael (mdholloway)	See mw:Parsoid/Deployments, OCG/Deployments, Mobileapps deployments
23:00–00:00 UTC # 16:00–17:00 PDT	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), Alex (Krenair), or Max (MaxSem)	Sébastien (Dereckson) [config] 276993 (deploy commands) Add files to noc.wikimedia.org (task T116163) [config] 276919 (deploy commands) Remove Wikisaurus namespace from ko.wiktionary (task T129631) [config] 276895 (deploy commands) Women's writes WikiWarriors edit-a-thon throttle rule (task T129697) [config] 276743 (deploy commands) Create Draft namespace on kn.wikipedia (task T129052) [config] 276547 (deploy commands) Set logo and site name on gu.wiktionary (task T122407) [config] 276485 (deploy commands) Enable SandboxLink on sr.wikipedia (task T129485) [config] 276378 (deploy commands) Configure upload rights on ce.wikipedia (task T129005) Bartosz (MatmaRex) (task T129411) Run php maintenance/updateCollation.php --force on the following projects: ruwikibooks (should take seconds) ruwikivoyage (should take seconds) ruwikiversity (should take less than a minute) ruwikiquote (should take less than three minutes) ruwikinews (should take less than ten minutes) (This counts as zero patches! ;) ) Erik B (ebernhardson) [wmf.16] 277339 (deploy commands) Allow phrase boost to be set to 1.0 or lower [wmf.16] 277337 (deploy commands) Turn on phrase boost AB test Requesting Developer (irc-nickname)
Tuesday, March 15
15:00–16:00 UTC # 08:00–09:00 PDT	Morning SWAT (Max 8 patches)	Brad (anomie), Chad (ostriches), Tyler (thcipriani), Mark (marktraceur), Alex (Krenair), or Katie (aude)	James_F [config] 271712 (deploy commands) Enable VisualEditor for IP users on the German Wikipedia [config] 274130 (deploy commands) Enable VisualEditor Single Edit Tab on the Polish Wikipedia csteipp [config] 272660 (deploy commands) Increase password requirements for privileged groups, as specified in the RFC Sébastien (Dereckson) [config] 263614 (deploy commands) Config changes for gu.wikiquote.org (task T121853 and task T122635) [config] 276900 (deploy commands) Taller d'iniciació a la Viquipèdia, Montserrat throttle rule (task T129490) Requesting Developer (irc-nickname) Gerrit link to backport or config change
16:00–17:00 UTC # 09:00–10:00 PDT	Puppet SWAT (Max 8 patches)	Giuseppe (_joe_), Guillaume (gehel)	Michael (mdholloway) 275853 (deploy commands) Add Accept: header to RESTBase/Parsoid requests Eric Evans (urandom) 277264 (deploy commands) Cassandra dependencies for logback filtering Chad (ostriches) 267149 (deploy commands) pep8: remove useless lambda 267150 (deploy commands) osm.py: various pep8 fixes 275855 (deploy commands) phab_epipe.py: remove useless lambda 276533 (deploy commands) demux.py: remove unused import 276764 (deploy commands) Gerrit: make repo directory location configurable Requesting Developer (irc-nickname) Gerrit link to backport or config change
17:00–18:00 UTC # 10:00–11:00 PDT	Services – Graphoid / Parsoid / OCG / Citoid	Yuri (yurik), Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra), Subbu (subbu)	See Graphoid, mw:Parsoid/Deployments, OCG/Deployments
19:00–21:00 UTC # 12:00–14:00 PDT	MediaWiki train	Mukunda (twentyafterfour)	1.27 schedule group0 1.27.0-wmf.16->1.27.0-wmf.17 group1 1.27.0-wmf.16 group2 1.27.0-wmf.16 group0 to 1.27.0-wmf.17 test wikis and mediawiki.org Blockers: task T128872
23:00–00:00 UTC # 16:00–17:00 PDT	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), Alex (Krenair), or Max (MaxSem)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
Wednesday, March 16
15:00–16:00 UTC # 08:00–09:00 PDT	Morning SWAT (Max 8 patches)	Brad (anomie), Chad (ostriches), Tyler (thcipriani), Mark (marktraceur), Alex (Krenair), or Katie (aude)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
17:30–18:30 UTC # 10:30–11:30 PDT	Enabling UrlShortener in read-only mode	legoktm	phab:T108557#2113621
19:00–21:00 UTC # 12:00–14:00 PDT	MediaWiki train	Mukunda (twentyafterfour)	1.27 schedule group0 1.27.0-wmf.17 group1 1.27.0-wmf.16->1.27.0-wmf.17 group2 1.27.0-wmf.16 group1 to 1.27.0-wmf.17 All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, etc) Catalan and Hebrew Wikipedias Blockers: task T128872
20:00–21:00 UTC # 13:00–14:00 PDT	Services – Parsoid / OCG / Citoid / Mobileapps / …	Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Bernd (bearND) and Michael (mdholloway)	See mw:Parsoid/Deployments, OCG/Deployments, Mobileapps deployments
23:00–00:00 UTC # 16:00–17:00 PDT	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), Alex (Krenair), or Max (MaxSem)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
Thursday, March 17
00:00–01:00 UTC # (Wed) 17:00–18:00 PDT	Phabricator update	Mukunda (twentyafterfour)	HOLD: Window to update phabricator.wikimedia.org
10:00–13:00 UTC # 03:00–06:00 PDT	Services test switch from eqiad to codfw	Giuseppe (_joe_), Marko (mobrovac)	* task T127974
13:00–14:00 UTC # 06:00–07:00 PDT	Elasticsearch switch DC from eqiad to codfw	Guillaume (gehel) with support from David (dcausse) and Erik (ebernhardson)	* Links to be added
15:00–16:00 UTC # 08:00–09:00 PDT	Morning SWAT (Max 8 patches)	Brad (anomie), Chad (ostriches), Tyler (thcipriani), Mark (marktraceur), or Katie (aude)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
16:00–17:00 UTC # 09:00–10:00 PDT	Puppet SWAT (Max 8 patches)	Giuseppe (_joe_), Guillaume (gehel)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
17:00–18:00 UTC # 10:00–11:00 PDT	Services – Graphoid / Parsoid / OCG / Citoid	Yuri (yurik), Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra), Subbu (subbu)	See Graphoid, mw:Parsoid/Deployments, OCG/Deployments
19:00–21:00 UTC # 12:00–14:00 PDT	MediaWiki train	Mukunda (twentyafterfour)	1.27 schedule group0 1.27.0-wmf.17 group1 1.27.0-wmf.17 group2 1.27.0-wmf.16->1.27.0-wmf.17 group2 to 1.27.0-wmf.17 All Wikipedias Blockers: task T128872
23:00–00:00 UTC # 16:00–17:00 PDT	Evening SWAT (Max 8 patches)	Roan (RoanKattouw), Chad (ostriches), Alex (Krenair), Max (MaxSem), or Adam (awight)	Requesting Developer (irc-nickname) Gerrit link to backport or config change

Week of March 21st

• Week of: Datacenter failure test to CODFW (Dallas)
  • No non-urgent deploys. Coordination with Release Engineering and Technical Operations teams required.

Upcoming

16 March

Erik Bernhardson

Long term callouts

Not scheduled yet

• Re-enable VisualEditor by default for all logged-out users of the English Wikipedia - phab:T90663
• Clean up skin user preferences in user_properties table on Wikimedia wikis – phab:T54778, use WikimediaMaintenance's cleanupSkinPrefs
• Deploy Sentry (JavaScript error logging) to production, configured to log only UploadWizard - phab:T91649
• Scrap VisualEditor providing its own edit tab, instead provide only one with switching, and memory of which editor the user used last – phab:T102398
• Enable Wikibase arbitrary access on commons. phab:T49930

Deployment trains

• mw:MediaWiki 1.27/Roadmap
• mw:Wikidata deployment

Recently completed

For older deployments, please see the /Archive.