Sheriffing: Difference between revisions

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When we moved to the "inbound" model of tree management, the Tree Sheriffs became a crucial part of our engineering infrastructure. The primary responsibility of the Sheriffs is and will always be to aid developers to easily, quickly, and seamlessly land their code in the proper location(s) and ensure that code does not break our automated tests. In the service of this objective, the Sheriffs work closely with the larger engineering organization to create and enforce landing policies that increase productivity while maintaining an efficient and robust automated testing system. Beyond the policy role, they have also become shepherds of automation quality by monitoring intermittent failures, performing uplifts and merges, and identifying poorly performing automation machines. This role has proven successful, and it feels like it is time to propose a formal module for the Tree Sheriffs in the larger context of the Activities Module.
= The Tree Sheriffs, aka Code Sheriffs =
When Mozilla moved to the "inbound" model of tree management, the Tree Sheriffs became important stewards of our engineering infrastructure. The primary responsibility of the Sheriffs is to aid developers to easily, quickly, and seamlessly land their code in the proper location(s) and ensure that code does not break our automated tests. In the service of this objective, the Sheriffs work closely with the larger engineering organization to create and enforce landing policies that increase productivity while maintaining an efficient and robust automated testing system. Beyond the policy role, they have also become shepherds of automation quality by monitoring intermittent failures, performing uplifts and merges, and identifying poorly performing automation machines. A formal module for the Tree Sheriffs in the larger context of the Activities Module was created: [[Modules/Activities#Tree_Sheriffs]].


Ed Morley (edmorley) will be module owner for Tree Sheriffing.
== Meet the Sheriffs ==
The owners & peers of the Tree Sheriffs module can be found on the [[Modules/Activities#Tree_Sheriffs|module page]], however for day-to-day sheriffduty coverage, look for the following people in #developers and #sheriffs. The on-duty sheriffs will typically have "|sheriffduty" appended to their Matrix nick.
* UTC+2: 15 sheriffs from SoftVision in Romania on a rotating schedule
* UTC+1: Sebastian Hengst [:Aryx] (staff/community)
* UTC-8: Phil Ringnalda [:philor] (community)


The peers will be Ryan VanderMeulen (ryanvm), Phil Ringalda (philor), Carsten Book (Tomcat), and Wes Kocher (kwierso).
We're always looking for more people to join the community team and help out - just drop us a message in the [https://chat.mozilla.org/#/room/#sheriffs:mozilla.org sheriffs] Matrix channel or at the [https://mail.mozilla.org/listinfo/sheriffs sheriffs mailing list]!


The living document of Sheriff roles and responsibilities will be kept up to date on this wiki page [1] and will certainly change over time as our organization and our automation continues to expand.  But this module and this document will help give the sheriffs a platform to work from for future changes.
= Links =
 
== For Developers ==
WIP Links (Pages will be cleaned up/combined where needed):
* Module proposal post: https://etherpad.mozilla.org/tIxSK3xRjs
* [https://developer.mozilla.org/en-US/docs/Developer_Guide/Committing_Rules_and_Responsibilities Committing rules and responsibilities]
* [https://developer.mozilla.org/en-US/docs/Developer_Guide/Committing_Rules_and_Responsibilities Committing rules and responsibilities]
* [[Tree Rules]]
* [[Tree Rules]]
* [[Sheriffing/Job Visibility Policy]]
* [[Sheriffing/How_To/Recommended_Try_Practices|Recommended Try Practices]]
* [[TBPL]]
 
* [[Auto-tools/Projects/TBPL2]]
== For Sheriffs ==
* https://intranet.mozilla.org/How_To/Update_Tinderbox_Pushlog_%28tbpl%29
* [[Sheriffing/How To/Getting_started_as_a_sheriff|How to get started as a sheriff]]
* https://developer.mozilla.org/en-US/docs/Tinderbox
* [[:Category:Sheriffing_How_To|How-to guides]]
* https://developer.mozilla.org/en-US/docs/Test_log_format
* [[Sheriffing/How To/Treeherder|Treeherder]]: how to interpret Treeherder data. Also explains how to [[Sheriffing/How_To/Treeherder#Classifying.2FStarring_jobs|star failures]].
* https://etherpad.mozilla.org/SheriffOnboarding
** [[Sheriffing/Job Visibility Policy|Job Visibility Policy]]
** [[Sheriffing/Test_Disabling_Policy|Test Disabling Policy]]
* [[Sheriffing/Deciding To Close A Tree|Deciding To Close A Tree]]
* [[Sheriffing/Schedule for Tasks performed by Code Sheriffs|Schedule for Tasks performed by Code Sheriffs]]
* [https://docs.google.com/document/d/1EkSwx8QanwMw88KFOQjiKKtu6HWNrQDoDSIy41v3ELE/edit# Uplift simulation reference]: a list of all beta uplift simulations performed and associated bugs filed
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