chore: bump otelcontribcol to v0.127.0-gke.7

[Camila-B]

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[google-oss-prow]

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[gemini-code-assist]

Summary of Changes

Hello @Camila-B, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request performs a routine dependency update, specifically incrementing the version of the OpenTelemetry Contrib Collector image used in the project. This ensures the project utilizes the latest stable release of the collector, incorporating any new features, bug fixes, or security patches from the upstream project.

Highlights

• Dependency Update: The OTELCONTRIBCOL_VERSION in the Makefile has been updated from v0.127.0-gke.6 to v0.127.0-gke.7.

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Changelog

• Makefile
  • Updated the OTELCONTRIBCOL_VERSION variable.

Activity

• No specific activity has been recorded for this pull request yet.

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[gemini-code-assist]

Code Review

This pull request bumps the version of otelcontribcol. While this seems like a routine update, it introduces a critical breaking change. The new version of opentelemetry-collector-contrib has removed a feature gate that is currently being used, which will cause the otel-collector deployment to fail upon upgrade. Additionally, the default behavior for metric naming has changed, which is another breaking change that will impact monitoring. Please see the detailed comment on the Makefile for the necessary actions to resolve this.

[gemini-code-assist]

This version bump to v0.127.0-gke.7 introduces critical breaking changes. The otel-collector deployment in manifests/templates/otel-collector.yaml must be updated as part of this PR.

1. Deployment Failure: The collector will fail to start because the --feature-gates=-pkg.translator.prometheus.NormalizeName argument (at manifests/templates/otel-collector.yaml:117) is no longer supported. This feature gate was removed in opentelemetry-collector-contrib v0.93.0. Please remove this argument.

2. Breaking Metric Name Change: The old configuration disabled trimming of the _ratio suffix from gauge metric names. In the new version, this trimming is enabled by default and cannot be turned off. This will alter metric names and likely break existing dashboards and alerts. This impact needs to be assessed and managed.

Additionally, the comment at manifests/templates/otel-collector.yaml:116 is incorrect and should be removed or updated. It wrongly claims the feature gate enables suffix trimming, when it was actually disabling it.

[tiffanny29631]

Is this from a branch in this repo?

[Camila-B]

Yes I created the patch change in Github directly

[tiffanny29631]

I thought #2070 did it?

[Camila-B]

You're right I missed that. Closing this PR then