Junji Watanabe 53f3049588 [infra] Add Reclient shadow builders as experimental
The reclient CQ builders work as expected.

https://ci.chromium.org/ui/p/webrtc/builders/try/android_arm_rel_reclient/14/overview
https://ci.chromium.org/ui/p/webrtc/builders/try/ios_compile_arm64_rel_reclient/11/overview
https://ci.chromium.org/ui/p/webrtc/builders/try/linux_rel_reclient/15/overview
https://ci.chromium.org/ui/p/webrtc/builders/try/mac_rel_reclient/12/overview
https://ci.chromium.org/ui/p/webrtc/builders/try/win_compile_x64_clang_rel_reclient/11/overview

This CL allows those builders run as part of CQ, but as experimental.

Setting `experiment_percentage` make the builders non-blocking.
See also https://chromium.googlesource.com/infra/luci/luci-go/+/HEAD/lucicfg/doc/README.md#luci.cq-tryjob-verifier-args

Considering the volume of WebRTC CQ, it's probably fine to shadow all builds to collect data quickly.
If it causes bot shortage, please decrease the percentage so that they don't always run.

Bug: b/243594984
Change-Id: Id9ab422c0d3e37c11e0d787f2fe6145c80c2f384
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/286760
Auto-Submit: Junji Watanabe <jwata@google.com>
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Christoffer Jansson <jansson@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#38833}
2022-12-07 08:35:37 +00:00
..

infra/config folder

This folder contains WebRTC project-wide configurations for Chrome infra services, mainly the CI system (console).

*.cfg files are the actual configuration that LUCI looks at. They are in protocol buffer text format. For example, cr-buildbucket.cfg defines builders.

However, they are all automatically generated from the Starlark script config.star that defines a unified config using lucicfg. The main body of the config is at the bottom of the file, following all the helper definitions.

lucicfg should be available as part of depot_tools. After editing config.star you should run lucicfg generate config.star to re-generate *.cfg files. Check the diffs in generated files to confirm that your change worked as expected. Both the code change and the generated changes need to be committed together.

Uploading changes

It is recommended to have a separate checkout for this branch, so switching to/from it does not populate/delete all files in the master branch.

Initial setup:

git clone https://webrtc.googlesource.com/src/

Now you can create a new branch to make changes:

git new-branch add-new-builder
# edit/generate files
git commit -a
git cl upload

Changes can be reviewed on Gerrit and submitted with commit queue as usual.

Activating the changes

Any changes to this directory go live soon after landing, without any additional steps. You can see the status or force a refresh of the config at luci-config.