* test(metrics): add comprehensive tests for Prometheus and Stackdriver metrics setup

- Added tests for Prometheus exporter registration and metrics endpoint exposure
- Verified all expected metrics are served via /metrics endpoint
- Included Stackdriver-only setup test to ensure no panics

* add allocation metrics endpoint test

---------

Co-authored-by: igooch <igooch@google.com>

* Controller for Pod in Succeeded state.

When sidecar containers are enabled, if a Pod `exit(0)`s, then it will
end up in a Succeeded state, and the backing GameServer will not get
deleted.

This introduces a new controller to check for this Pod state and move
the `GameServer` to a `Shutdown` state.

Also updates all records of simple-game-server to the latest version,
since we need it to test that this fix works.

Closes #4188

* Fix lint issues.

* Fix bugs in SucceededController

* Ignore terminating pods.
* Ignores Error or Unhealthy states.
* Minor cleanup of failing e2e test, to help with error reporting.

* Disable TestGameServerPodCompletedAfterCleanExit during FeatureSidecarContainers

---------

Co-authored-by: Aravindh K <karavindh@google.com>

…ant one (#4186)

* Changed the sidecar requests rate limiter from exponential to a constant one

* Generate install.yaml

* Update the helm.md

* Using sdkServer instead of sdk for nesting

* Using sdkServer outside of the controller nesting

* Merge branch 'main' into perf/sidecar-patches

---------

Co-authored-by: Mark Mandel <mark@compoundtheory.com>
Co-authored-by: Aravindh K <karavindh@google.com>
Co-authored-by: igooch <igooch@google.com>

* mock stackdriver metrics registration to prevent local test failure

… call fails. (#4214)

* add retry when invoke addMoreGameServers error return

* retrigger checks

* add return err

…bility (#4165)

* Add failure logs in submit-upgrade-test-cloud-build

* Add failure logs in submit-upgrade-test-cloud-build

* rebase

* clean

* update

* update

* Install jq in Dockerfile

* update

* update

* lint fixes

* Improve logging for upgrade test job status parsing

* remove docker change

* remove docker change

* Improve logging for upgrade test job status parsing

* updates

* improve logs

* error handle the job 'upgrade-test-runner'

* fixes

* Add failure logs in submit-upgrade-test-cloud-build

* add msg in logs

* adding more logs

* extract submit-upgrade-test-cloud-build step to build/e2e_upgrade_test.sh
extract submit-e2e-test-cloud-build step to build/e2e_test.sh

* lint fixes

* fixes

* fixes

* fixes

* fixes

* fixes

* rollback e2e test

* Improves upgrade test failure logging

---------

Co-authored-by: Mark Mandel <mark@compoundtheory.com>

…er (#4211)

Bumps [github.com/go-viper/mapstructure/v2](https://github.com/go-viper/mapstructure) from 2.2.1 to 2.3.0.
- [Release notes](https://github.com/go-viper/mapstructure/releases)
- [Changelog](https://github.com/go-viper/mapstructure/blob/main/CHANGELOG.md)
- [Commits](go-viper/mapstructure@v2.2.1...v2.3.0)

---
updated-dependencies:
- dependency-name: github.com/go-viper/mapstructure/v2
  dependency-version: 2.3.0
  dependency-type: indirect
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Aravindh K <karavindh@google.com>
Co-authored-by: Mengye (Max) Gong <8364575+gongmax@users.noreply.github.com>

* feat: promote ScheduledAutoscaler to beta

* feat: re-run gen-install

* feat: roll back alpha gates from 1.50.0

* feat: update feature stages

* feat: update default value for RollingUpdateFix

---------

Co-authored-by: Mark Mandel <mark@compoundtheory.com>
Co-authored-by: Sivasankaran R <sivasankaranr@google.com>

* Add support for lists in Unreal SDK, resolves #4029

* Some doc and path fixes

* Update Unreal SDK docs to show lists are supported

* Wrapping Unreal SDK doc update in a feature check

---------

Co-authored-by: Aravindh K <karavindh@google.com>
Co-authored-by: Sivasankaran R <sivasankaranr@google.com>

Co-authored-by: Mark Mandel <mark@compoundtheory.com>

* release v1.51.0

* correct slash in 1.51.0 md file

* remove unwanted tag

* remove unwanted tag 1.50.0