Adding upstream version 115.7.0esr.upstream/115.7.0esr

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

2 files changed, 114 insertions, 0 deletions

diff --git a/testing/docs/ci-configs/index.md b/testing/docs/ci-configs/index.md
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+# Configuration Changes
+
+This process outlines how Mozilla will handle configuration changes.  For a list of configuration changes, please see the [schedule](schedule.md)
+
+## Infrastructure setup (2-4 weeks)
+
+This is behind the scenes, when there is a need for a configuration change (upgrade or addition of a new platform), the first step
+is to build a machine and work to get the OS working with taskcluster.  This is work for hardware/cloud is done by IT.  Sometimes
+this is as simple as installing a package or changing an OS setting on an existing machine, but this requires automation and documentation.
+
+In some cases there is little to no work as the CI change is running tests with different runtime settings (environment variables or preferences).
+
+
+## Setting up a pool on try server (1 week)
+
+The next step is getting some machines available on try server.  This is where we add some code in tree to support the new config
+(a new worker type, test variant, etc.) and validate any setup done by IT works with taskcluster client.  Then Releng ensures the target tests
+can run at a basic level (mozharness, testharness, os environment, logging, something passes).
+
+
+## Green up tests (1 week)
+
+This is a stage where Releng will run all the target tests on try server and disable, skip, fail-if all tests that are not passing or frequently
+intermittent.  Typically there are a dozen or so iterations of this because a crash on one test means we don't run the rest of the tests in the
+manifest.
+
+
+## Turn on new config as tier-2 (1/2 week)
+
+We will time this at the start of a new release.
+
+Releng will land changes to manifests for all non passing tests and then schedule the new jobs by default.  This will be tier-2 for a couple reasons:
+ * it is a new config with a lot of tests that still need attention
+ * in many cases there is a previous config (lets say upgrading windows 10 from 1803 -> 1903) which is still running in parallel as tier-1
+
+This will now run on central and integration and be available on try server.  In a few cases where there are limited machines (android phones),
+there will be needs to turn off the old config, or make the try server access hidden behind `./mach try --full`
+
+
+## Turn on new backstop jobs which run the skipped tests (1/2 week)
+
+Releng will turn on a new temporary job that will run the tests which are not green by default.  These will run as tier-2 on mozilla-central and be sheriffed.
+
+The goal here is to find tests that are now passing and should be run by default.  By doing this we are effectively running all the tests instead of
+disabling dozens of tests and forgetting about them.
+
+
+## Handoff to developers (1 week)
+
+Releng will file bugs for all failing tests (one bug per manifest) and needinfo the triage owner to raise awareness that one or more tests in their area need
+attention.  At this point, Releng is done and will move onto other work.  Developers can reproduce the failures on try server and when fixed edit the manifest
+as appropriate.
+
+There will be at least 6 weeks to investigate and fix the tests before they are promoted to tier-1.
+
+
+## move config to tier-1 (6-7 weeks later)
+
+After the config has been running as tier-2 makes it to beta and then to the release branch (i.e. 2 new releases later), Releng will:
+ * turn off the old tier-1 tests (if applicable)
+ * promote the tier-2 jobs to tier-1
+ * turn off the backstop jobs
+
+This allows developers to schedule time in a 6 weeks period to investigate and fix any test failures.
diff --git a/testing/docs/ci-configs/schedule.md b/testing/docs/ci-configs/schedule.md
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+# Schedule
+
+For each CI config change, we need to follow:
+ * scope of work (what will run, how frequently)
+ * capacity planning (cost, physical space limitations)
+ * will this replace anything or is this 100% new
+ * puppet/deployment scripts or documentation
+ * setup pool on try server
+ * documented updated on this page, communicate with release management and others as appropriate
+
+
+## Current / Future CI config changes
+
+Start Date | Completed | Tracking Bug | Description
+--- | --- | --- | ---
+TBD  | TBD | TBD | Upgrade Ubuntu 18.04 -> Ubuntu 22.04 X11
+TBD  | TBD | TBD | Add Ubuntu 22.04 Wayland
+TBD  | TBD | TBD | Upgrade Mac M1 from 11.2.3 -> 13.2.1
+TBD  | TBD | TBD | replace 2017 acer perf laptops with lower end NUCs
+TBD  | TBD | TBD | replace windows moonshots with mid level NUCs
+TBD  | TBD | TBD | Upgrade android emulators to modern version
+
+
+## Completed CI config changes
+
+Start Date | Completed | Tracking Bug | Description
+--- | --- | --- | ---
+October 2022 | March 2023 | [Bug 1794900](https://bugzilla.mozilla.org/show_bug.cgi?id=1794900) | Migrate from win10 -> win11
+November 2022 | February 2023 | [Bug 1804790](https://bugzilla.mozilla.org/show_bug.cgi?id=1804790) | Migrate Win7 unittests from AWS -> Azure
+October 2022 | February 2023 | [Bug 1794895](https://bugzilla.mozilla.org/show_bug.cgi?id=1794895) | Migrate unittests from pixel2 -> pixel5
+November 2020 | August 2021 | [Bug 1676850](https://bugzilla.mozilla.org/show_bug.cgi?id=1676850) | Windows tests migrate from AWS -> Datacenter/Azure and 1803 -> 20.04
+May 2022 | July 2022 | [Bug 1767486](https://bugzilla.mozilla.org/show_bug.cgi?id=1767486) | Migrate perftests from Moto G5 phones to Samsung A51 phones
+March 2021 | October 2021 | [Bug 1699541](https://bugzilla.mozilla.org/show_bug.cgi?id=1699541) | Migrate from OSX 10.14 -> 10.15
+July 2020 | March 2021 | [Bug 1572739](https://bugzilla.mozilla.org/show_bug.cgi?id=1572739) | upgrade datacenter linux perf machines from ubuntu 16.04 to 18.04
+September 2020  | January 2021 | [Bug 1665012](https://bugzilla.mozilla.org/show_bug.cgi?id=1665012) | Android phones upgrade from version 7 -> 10
+October 2020  | February 2021 | [Bug 1673067](https://bugzilla.mozilla.org/show_bug.cgi?id=1673067) | Run tests on MacOSX Aarch64 (subset in parallel)
+September 2020 | March 2021 | [Bug 1548264](https://bugzilla.mozilla.org/show_bug.cgi?id=1548264) | Python 2.7 -> 3.6 migration in CI
+July 2020 | October 2020| [Bug 1653344](https://bugzilla.mozilla.org/show_bug.cgi?id=1653344) | Remove EDID dongles from MacOSX machines
+August 2020 | September 2020 | [Bug 1643689](https://bugzilla.mozilla.org/show_bug.cgi?id=1643689) | Schedule tests by test selection/manifest
+June 2020 | August 2020 | [Bug 1486004](https://bugzilla.mozilla.org/show_bug.cgi?id=1486004) | Android hardware tests running without rooted phones
+August 2019 | January 2020 | [Bug 1572242](https://bugzilla.mozilla.org/show_bug.cgi?id=1572242) | Upgrade Ubuntu from 16.04 to 18.04 (finished in January)
+
+
+## Appendix:
+ * *OS*: base operating system such as Android, Linux, Mac OSX, Windows
+ * *Hardware*: specific cpu/memory/disk/graphics/display/inputs that we are using, could be physical hardware we own or manage, or it could be a cloud provider.
+ * *Platform*: a combination of hardware and OS
+ * *Configuration*: what we change on a platform (can be runtime with flags), installed OS software updates (service pack), tools (python/node/etc.), hardware or OS settings (anti aliasing, display resolution, background processes, clipboard), environment variables,
+ * *Test Failure*: a test doesn’t report the expected result (if we expect fail and we crash, that is unexpected).  Typically this is a failure, but it can be a timeout, crash, not run, or even pass
+ * *Greening up*: Assuming all tests return expected results (passing), they are green.  When tests fail, they are orange.  We need to find a way to get all tests green by investigating test failures.