Deployments

Notes:

• Ask for a little more time than what you think you'll need for deployment and testing; you never know what issues may come up and slow you down.
  • Generally, we have found one hour 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 are for pushing out simple and low-risk changes (as assessed by you, SWAT team, and the Release Manager). They happen at:
  • 06:00, 11:00 and 16:00 Pacific on Mondays and Thursdays
  • 06:00 and 16:00 Pacific on Tuesdays
  • 06:00, 10:00 and 16:00 Pacific on Wednesdays

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

Deployments
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This page tracks planned deployments of software to the Wikimedia Foundation servers that host the various Wikimedia projects (Wikipedia, Wiktionary, Wikiversity, 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.

Long running tasks/scripts

While not strictly a deployment, performing long running (>1 hour) tasks (eg: migration scripts) can encounter issues when code is updated while a script is being run. For this reason it is required to add an entry in the calendar for the task with a window that accounts for the anticipated start time and estimated length for the task.

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.

Something went wrong‽ (see also Incident response)

• Is there a user-impacting or other severe issue?
  • Communicate this in the #wikimedia-operations ^connect IRC channel.
  • Add the #wikimedia-incident project to any relevant Phabricator task; if appropriate set to UBN! priority.
• What happens next?
  • In case of halting or reverting the weekly train

Near-term

NOTE: You can also subscribe to the "WMF Deployments" google calendar by adding <wikimedia.org_rudis09ii2mm5fk4hgdjeh1u64@group.calendar.google.com>. This does not always get one-off windows that are noted below. This wiki page is the canonical deployment schedule and any differences with the google calendar are to be interpreted as the google calendar being incorrect.

Week of February 10

Time	Component	Deployer	Changes
Monday, February 10
11:30–12:00 UTC # 03:30–04:00 PST	Wikimedia Portals Update	Jan Drewniak (jan_drewniak)	Weekly window for the portals page: https://www.wikipedia.org/
12:00–13:00 UTC # 04:00–05:00 PST	European Mid-day SWAT (Max 6 patches)	Amir (Amir1), Lucas (Lucas_WMDE), Adam (awight), Martin (Urbanecm)	Matthias (matthiasmullie) Done [wmf.16] 570932 (deploy commands) [MachineVision] Use the wbsetclaim API to add depicts statements Done [config] 570935 (deploy commands) Remove handler deleted from the MachineVision extension MarcoAurelio (hauskatze) Done [wmf.16] 571261 (deploy commands) [WikimediaMessages] Create an override for 'globalblocking-ipblocked-range' for Wikimedia (T243974) Zoranzoki21 (please merge this if you can without me, this no needs mwdebug and can be merged directly, I don't have much free time today and in next few days because of school and health problems. Best regards, Zoranzoki21 (talk) 11:55, 10 February 2020 (UTC)) Done [config] 570998 (deploy commands) Add throttle rules for OSU Editathon and workshop for cawiki, remove expired ones Requesting Developer (irc-nickname) Gerrit link to backport or config change
18:00–18:30 UTC # 10:00–10:30 PST	Wikidata Query Service weekly deploy	Guillaume (gehel), Mathew (onimisionipe)	...
19:00–20:00 UTC # 11:00–12:00 PST	Morning SWAT (Max 6 patches)	Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm)	Andrew Otto (ottomata) Deploy EventStreamConfig extension to Beta cluster - task T242122 Done [config] 566842 (deploy commands) Add EventStreamConfig extension to extension-list Done [config] 566846 (deploy commands) Add EventStreamConfig extension config variable to InitialiseSettings.php Done [config] 566850 (deploy commands) Load EventStreamConfig extension in CommonSettings.php Done [config] 566847 (deploy commands) Add EventStreamConfig extension config variable to InitialiseSettings-labs.php Done [config] 571308 (deploy commands) Configure test.event stream in beta Petr Pchelko (Pchelolo) Done [config] 570393 (deploy commands) Session Store: Switch group0 and group1 to kask-session Requesting Developer (irc-nickname) Gerrit link to backport or config change
21:00–22:00 UTC # 13:00–14:00 PST	Services – Graphoid / Parsoid / Citoid / ORES	C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Aaron (halfak)), Andy (accraze)	See Graphoid, mw:Parsoid/Deployments
22:00–00:00 UTC # 14:00–16:00 PST	Weekly Security deployment window	Sam (Reedy), Scott (sbassett)	Held deployment window for Security-team related deploys.
Tuesday, February 11
00:00–01:00 UTC # (Mon) 16:00–17:00 PST	Evening SWAT (Max 6 patches)	Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm)	Erik B (ebernhardson) [config] 570712 (deploy commands) Give NS_HELP same weight as NS_MAIN in search on wikitech David Barratt (davidwbarratt) [config] 571383 (deploy commands) Enable SpecialMute page on all wikis Jdlrobson [wmf/1.35.0-wmf.18]: Revert "Reduce 'userContributions' icon code 570779 (deploy commands) Requesting Developer (irc-nickname) Gerrit link to backport or config change
12:00–13:00 UTC # 04:00–05:00 PST	European Mid-day SWAT (Max 6 patches)	Amir (Amir1), Lucas (Lucas_WMDE), Adam (awight), Martin (Urbanecm)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
17:00–18:00 UTC # 09:00–10:00 PST	Puppet SWAT (Max 6 patches)	Filippo (godog), Giuseppe (_joe_)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
18:00–19:00 UTC # 10:00–11:00 PST	Services – Graphoid / Parsoid / Citoid / ORES	C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Aaron (halfak)), Andy (accraze)	See Graphoid, mw:Parsoid/Deployments
19:00–20:00 UTC # 11:00–12:00 PST	Pre MediaWiki train sanity break		No Deploys
20:00–21:00 UTC # 12:00–13:00 PST	Mediawiki train - American Version	Dan (marxarelli), James (James_F)	1.35 schedule group0 1.35.0-wmf.18->1.35.0-wmf.19 group1 1.35.0-wmf.18 group2 1.35.0-wmf.18 group0 to 1.35.0-wmf.19 Blockers: task T233867
Wednesday, February 12
00:00–01:00 UTC # (Tue) 16:00–17:00 PST	Evening SWAT (Max 6 patches)	Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
12:00–13:00 UTC # 04:00–05:00 PST	European Mid-day SWAT (Max 6 patches)	Amir (Amir1), Lucas (Lucas_WMDE), Adam (awight), Martin (Urbanecm)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
19:00–20:00 UTC # 11:00–12:00 PST	Morning SWAT (Max 6 patches)	Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
20:00–21:00 UTC # 12:00–13:00 PST	Mediawiki train - American Version	Dan (marxarelli), James (James_F)	1.35 schedule group0 1.35.0-wmf.19 group1 1.35.0-wmf.18->1.35.0-wmf.19 group2 1.35.0-wmf.18 group1 to 1.35.0-wmf.19 Blockers: task T233867
21:00–22:00 UTC # 13:00–14:00 PST	Services – Graphoid / Parsoid / Citoid / ORES	C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Aaron (halfak)), Andy (accraze)	See Graphoid, mw:Parsoid/Deployments
Thursday, February 13
00:00–01:00 UTC # (Wed) 16:00–17:00 PST	Evening SWAT (Max 6 patches)	Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
01:00–02:00 UTC # (Wed) 17:00–18:00 PST	Phabricator update	Mukunda (twentyafterfour)	HOLD: Window to update phabricator.wikimedia.org
12:00–13:00 UTC # 04:00–05:00 PST	European Mid-day SWAT (Max 6 patches)	Amir (Amir1), Lucas (Lucas_WMDE), Adam (awight), Martin (Urbanecm)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
17:00–18:00 UTC # 09:00–10:00 PST	Puppet SWAT (Max 6 patches)	Filippo (godog), Giuseppe (_joe_)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
18:00–19:00 UTC # 10:00–11:00 PST	Services – Graphoid / Parsoid / Citoid / ORES	C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Aaron (halfak)), Andy (accraze)	See Graphoid, mw:Parsoid/Deployments
19:00–20:00 UTC # 11:00–12:00 PST	Morning SWAT (Max 6 patches)	Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm)	Requesting Developer (irc-nickname) Gerrit link to backport or config change
20:00–21:00 UTC # 12:00–13:00 PST	Mediawiki train - American Version	Dan (marxarelli), James (James_F)	1.35 schedule group0 1.35.0-wmf.19 group1 1.35.0-wmf.19 group2 1.35.0-wmf.18->1.35.0-wmf.19 group2 to 1.35.0-wmf.19 Blockers: task T233867
Friday, February 14
00:00–01:00 UTC # (Thu) 16:00–17:00 PST	Evening SWAT (Max 6 patches)	Roan (RoanKattouw), Niharika (Niharika), Martin (Urbanecm)	Requesting Developer (irc-nickname) Gerrit link to backport or config change

Upcoming events

• 17 February (Presidents' Day): No deploys
• 9 March (US DST switchover + 1 day): No deploys
• 25 May (Memorial Day): No deploys

Past deployments

• /Archive

See also

• SWAT deploys