[TT-16342] revert: undo incorrect OTel scenario update (PR #8041)

[buger]

Summary

Reverts PR #8041 which incorrectly updated OTel test scenarios to use NEW attribute names on release-5.12.

release-5.12 uses otelhttp v0.49.0 (pinned via go.mod replace), which emits OLD names:

• http.method (not http.request.method)
• http.status_code (not http.response.status_code)
• http.user_agent (not user_agent.original)
• http.wrote_bytes (not http.response.body.size)

The scenario update was only correct for master (otelhttp v0.65.0).

🤖 Generated with Claude Code

[github-actions]

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[probelabs]

This pull request reverts PR #8041, which incorrectly updated OpenTelemetry (OTel) test scenarios with attribute names that are not compatible with the release-5.12 branch.

The release-5.12 branch uses an older version of the otelhttp library (v0.49.0), which emits older OTel attribute names. The original PR introduced newer attribute names (e.g., http.request.method) that are only correct for the master branch, causing tests to fail on the release branch. This PR reverts those changes to align the tests with the library version in use.

Files Changed Analysis

• 16 files changed, all of which are YAML test scenario definitions located in ci/tests/tracing/scenarios/.
• The changes are uniform across all files, consisting of reverting OpenTelemetry attribute names in test selectors and assertions.
• There are 58 additions and 58 deletions, reflecting the direct replacement of incorrect attribute names with the correct ones.

Architecture & Impact Assessment

• What this PR accomplishes: It fixes the broken OpenTelemetry integration tests on the release-5.12 branch by restoring the expected OTel attribute names to their older format, ensuring test assertions match the actual data emitted by the gateway.

• Key technical changes introduced: The changes are exclusively within test configuration files. Newer OTel attribute names are reverted to their older counterparts. Examples include:

  • http.request.method -> http.method
  • http.response.status_code -> http.status_code
  • user_agent.original -> http.user_agent
  • http.response.body.size -> http.wrote_bytes
  • url.full -> http.url

• Affected system components: The impact is confined to the CI/CD pipeline and the tracing test suite. There are no changes to the application's runtime code or its architecture. The sole purpose is to correct test assertions.

Scope Discovery & Context Expansion

• The scope of this PR is strictly limited to the test scenarios for OpenTelemetry tracing. It does not affect any application logic, dependencies, or user-facing functionality.
• This change highlights a dependency divergence between the master and release-5.12 branches, specifically concerning the otelhttp library and its corresponding OTel semantic conventions. It serves as a reminder that backporting changes from master requires careful verification against the dependency set of the target release branch.

Metadata

• Review Effort: 1 / 5
• Primary Label: bug

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Last updated: 2026-04-16T15:57:38.898Z | Triggered by: pr_opened | Commit: e5bc04f

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[github-actions]

API Changes

no api changes detected

[probelabs]

✅ Security Check Passed

No security issues found – changes LGTM.

✅ Security Check Passed

No security issues found – changes LGTM.

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✅ Performance Check Passed

No performance issues found – changes LGTM.

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Last updated: 2026-04-16T15:57:16.721Z | Triggered by: pr_opened | Commit: e5bc04f

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[buger]

Closing: Go 1.25 updated the OTel HTTP instrumentation library on release-5.12.1, so scenarios need the NEW-style attribute names (e.g. http.request.method instead of http.method). This revert was incorrect. Correct fix applied in PR #8059.