Deployments

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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 thrice daily (06:00, 11:00 and 16:00 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.
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)

Near-term

NOTE: You can 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 calendar being wrong.


Week of October 23rd

  • Week of:
    • nothing yet...
By day
Time Component Deployer Changes

Monday, October 23

 UTC #
 PDT
European Mid-day SWAT
(Max 8 patches)
addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof) Marius (hoo)
  • Enable description usage tracking on further wikis. (385340, T178515)

Zoranzoki21

  • Added <aleph500.biblacad.ro:8991/> to $wgCopyUploadsDomains (385829, T178753)

Requesting Developer (irc-nickname)

  • Gerrit link to backport or config change
 UTC #
 PDT
Wikidata Query Service weekly deploy Guillaume (gehel) Smalyshev
  • Deploy WDQS Blazegraph + GUI update
 UTC #
 PDT
Morning SWAT
(Max 8 patches)
addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof) Requesting Developer (irc-nickname)
  • Gerrit link to backport or config change
 UTC #
 PDT
ServicesParsoid / OCG / Citoid / Mobileapps / ORES / … Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Bernd (bearND), Aaron (halfak), Amir (Amir1) See mw:Parsoid/Deployments, OCG/Deployments, Mobileapps deployments
 UTC #
 PDT
Weekly Security deployment window Darian (dapatrick), Brian (bawolff), Sam (Reedy) Held deployment window for Security-team related deploys.
 UTC #
 PDT
Evening SWAT
(Max 8 patches)
addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof) Tomasz (twkozlowski)
  • [config] 385377 Working Class Movement Library (Salford) throttle rule

Requesting Developer (irc-nickname)

  • Gerrit link to backport or config change

Tuesday, October 24

 UTC #
 PDT
European Mid-day SWAT
(Max 8 patches)
addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof) Requesting Developer (irc-nickname)
  • Gerrit link to backport or config change
 UTC #
 PDT
Puppet SWAT
(Max 8 patches)
Filippo (godog), Moritz (moritzm), Giuseppe (_joe_) Requesting Developer (irc-nickname)
  • Gerrit link to backport or config change
 UTC #
 PDT
ServicesGraphoid / Parsoid / OCG / Citoid / ORES Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Aaron (halfak), Amir (Amir1) See Graphoid, mw:Parsoid/Deployments, OCG/Deployments
 UTC #
 PDT
MediaWiki train Chad (no_justification) 1.31 schedule
group0 1.31.0-wmf.4->1.31.0-wmf.5
group1 1.31.0-wmf.4
group2 1.31.0-wmf.4
 UTC #
 PDT
Evening SWAT
(Max 8 patches)
addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof) Requesting Developer (irc-nickname)
  • Gerrit link to backport or config change

Wednesday, October 25

 UTC #
 PDT
European Mid-day SWAT
(Max 8 patches)
addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof) Requesting Developer (irc-nickname)
  • Gerrit link to backport or config change
 UTC #
 PDT
Morning SWAT
(Max 8 patches)
addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof) Smalyshev
  • [config] 379426 Make using CirrusSearch engine default for wbsearchentities

Requesting Developer (irc-nickname)

  • Gerrit link to backport or config change
 UTC #
 PDT
MediaWiki train Chad (no_justification) 1.31 schedule
group0 1.31.0-wmf.5
group1 1.31.0-wmf.4->1.31.0-wmf.5
group2 1.31.0-wmf.4
  • group1 to 1.31.0-wmf.5
    • All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, etc)
    • Catalan and Hebrew Wikipedias
  • Blockers: Task T174361
 UTC #
 PDT
ServicesParsoid / OCG / Citoid / Mobileapps / ORES / … Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Bernd (bearND), Aaron (halfak), Amir (Amir1) See mw:Parsoid/Deployments, OCG/Deployments, Mobileapps deployments
 UTC #
 PDT
Evening SWAT
(Max 8 patches)
addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof) Requesting Developer (irc-nickname)
  • Gerrit link to backport or config change

Thursday, October 26

 UTC #
(Wed)  PDT
Phabricator update Mukunda (twentyafterfour) HOLD: Window to update phabricator.wikimedia.org
 UTC #
 PDT
European Mid-day SWAT
(Max 8 patches)
addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof) Requesting Developer (irc-nickname)
  • Gerrit link to backport or config change
 UTC #
 PDT
Puppet SWAT
(Max 8 patches)
Filippo (godog), Moritz (moritzm), Giuseppe (_joe_) Requesting Developer (irc-nickname)
  • Gerrit link to backport or config change
 UTC #
 PDT
ServicesGraphoid / Parsoid / OCG / Citoid / ORES Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Aaron (halfak), Amir (Amir1) See Graphoid, mw:Parsoid/Deployments, OCG/Deployments
 UTC #
 PDT
Morning SWAT
(Max 8 patches)
addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof) Requesting Developer (irc-nickname)
  • Gerrit link to backport or config change
 UTC #
 PDT
MediaWiki train Chad (no_justification) 1.31 schedule
group0 1.31.0-wmf.5
group1 1.31.0-wmf.5
group2 1.31.0-wmf.4->1.31.0-wmf.5
 UTC #
 PDT
Evening SWAT
(Max 8 patches)
addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof) Requesting Developer (irc-nickname)
  • Gerrit link to backport or config change

Week of October 30th

  • Week of:
    • nothing yet...
By day
Time Component Deployer Changes

Monday, October 30

 UTC #
 PDT
European Mid-day SWAT
(Max 8 patches)
addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof) Requesting Developer (irc-nickname)
  • Gerrit link to backport or config change
 UTC #
 PDT
Wikidata Query Service weekly deploy Guillaume (gehel) TBD
 UTC #
 PDT
Morning SWAT
(Max 8 patches)
addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof) Requesting Developer (irc-nickname)
  • Gerrit link to backport or config change
 UTC #
 PDT
ServicesParsoid / OCG / Citoid / Mobileapps / ORES / … Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Bernd (bearND), Aaron (halfak), Amir (Amir1) See mw:Parsoid/Deployments, OCG/Deployments, Mobileapps deployments
 UTC #
 PDT
Weekly Security deployment window Darian (dapatrick), Brian (bawolff), Sam (Reedy) Held deployment window for Security-team related deploys.
 UTC #
 PDT
Evening SWAT
(Max 8 patches)
addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof) Requesting Developer (irc-nickname)
  • Gerrit link to backport or config change

Tuesday, October 31

 UTC #
 PDT
European Mid-day SWAT
(Max 8 patches)
addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof) Requesting Developer (irc-nickname)
  • Gerrit link to backport or config change
 UTC #
 PDT
Puppet SWAT
(Max 8 patches)
Filippo (godog), Moritz (moritzm), Giuseppe (_joe_) Requesting Developer (irc-nickname)
  • Gerrit link to backport or config change
 UTC #
 PDT
ServicesGraphoid / Parsoid / OCG / Citoid / ORES Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Aaron (halfak), Amir (Amir1) See Graphoid, mw:Parsoid/Deployments, OCG/Deployments
 UTC #
 PDT
MediaWiki train Chad (no_justification) 1.31 schedule
group0 1.31.0-wmf.5->1.31.0-wmf.6
group1 1.31.0-wmf.5
group2 1.31.0-wmf.5
 UTC #
 PDT
Evening SWAT
(Max 8 patches)
addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof) Requesting Developer (irc-nickname)
  • Gerrit link to backport or config change

Wednesday, November 01

 UTC #
 PDT
European Mid-day SWAT
(Max 8 patches)
addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof) Requesting Developer (irc-nickname)
  • Gerrit link to backport or config change
 UTC #
 PDT
Morning SWAT
(Max 8 patches)
addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof) Requesting Developer (irc-nickname)
  • Gerrit link to backport or config change
 UTC #
 PDT
MediaWiki train Chad (no_justification) 1.31 schedule
group0 1.31.0-wmf.6
group1 1.31.0-wmf.5->1.31.0-wmf.6
group2 1.31.0-wmf.5
  • group1 to 1.31.0-wmf.6
    • All non-Wikipedia sites (Wiktionary, Wikisource, Wikinews, Wikibooks, Wikiquote, Wikiversity, etc)
    • Catalan and Hebrew Wikipedias
  • Blockers: Task T174362
 UTC #
 PDT
ServicesParsoid / OCG / Citoid / Mobileapps / ORES / … Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Bernd (bearND), Aaron (halfak), Amir (Amir1) See mw:Parsoid/Deployments, OCG/Deployments, Mobileapps deployments
 UTC #
 PDT
Evening SWAT
(Max 8 patches)
addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof) Requesting Developer (irc-nickname)
  • Gerrit link to backport or config change

Thursday, November 02

 UTC #
(Wed)  PDT
Phabricator update Mukunda (twentyafterfour) HOLD: Window to update phabricator.wikimedia.org
 UTC #
 PDT
European Mid-day SWAT
(Max 8 patches)
addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof) Requesting Developer (irc-nickname)
  • Gerrit link to backport or config change
 UTC #
 PDT
Puppet SWAT
(Max 8 patches)
Filippo (godog), Moritz (moritzm), Giuseppe (_joe_) Requesting Developer (irc-nickname)
  • Gerrit link to backport or config change
 UTC #
 PDT
ServicesGraphoid / Parsoid / OCG / Citoid / ORES Gabriel (gwicke), C.Scott (cscott), Arlo (arlolra), Subbu (subbu), Aaron (halfak), Amir (Amir1) See Graphoid, mw:Parsoid/Deployments, OCG/Deployments
 UTC #
 PDT
Morning SWAT
(Max 8 patches)
addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof) Requesting Developer (irc-nickname)
  • Gerrit link to backport or config change
 UTC #
 PDT
MediaWiki train Chad (no_justification) 1.31 schedule
group0 1.31.0-wmf.6
group1 1.31.0-wmf.6
group2 1.31.0-wmf.5->1.31.0-wmf.6
 UTC #
 PDT
Evening SWAT
(Max 8 patches)
addshore, Antoine (hashar), Brad (anomie), Chad (RainbowSprinkles), Katie (aude), Max (MaxSem), Mukunda (twentyafterfour), Roan (RoanKattouw), Sébastien (Dereckson), Tyler (thcipriani), Niharika (Niharika), or Željko (zeljkof) Requesting Developer (irc-nickname)
  • Gerrit link to backport or config change

Upcoming

  • No MW train the week of Thanksgiving (Nov 20th), SWATs open for high priority things
  • No deploys weeks of Dec 18th and 25th (last two weeks)
  • Normal week week of Jan 1st (minus no deploys that Monday)
  • The Dev Summit and WMF All Hands is the week of January 22nd, so that will be a "No Train but SWATs OK on Mon/Tues/Wed" week.
  • The following week (week of January 29th) the Release Engineering team will be on an offsite, so a week of "No Train, but SWATs and service deploys OK".

Past deployments