[vignesh2027]

withEndpointScheme in internal/shared/otlp/otlptrace/otlpconfig/envconfig.go.tmpl treats only http and unix endpoints as insecure. A unix-abstract:// endpoint set through OTEL_EXPORTER_OTLP_ENDPOINT or OTEL_EXPORTER_OTLP_TRACES_ENDPOINT falls through to WithSecure, so the trace exporter enables TLS for a local abstract socket. The metric template already lists unix-abstract (#8862), so the trace and metric exporters behave differently for the same endpoint.

This adds unix-abstract to the insecure schemes in the trace template and regenerates the otlptracegrpc and otlptracehttp copies with go generate. The only generated changes are the one-line envconfig.go change and the new test case in both modules.

Testing:

Added a "Test Environment Unix Abstract Endpoint" case to the shared trace options test template, mirroring the existing unix case and the metric unix-abstract case. It fails on main in both modules (Insecure is false) and passes with the change.

go test -race ./..., golangci-lint run, go vet and gofmt are clean for exporters/otlp/otlptrace/otlptracegrpc and exporters/otlp/otlptrace/otlptracehttp.

[opentelemetry-pr-dashboard]

Pull request dashboard status

Waiting on maintainers · refreshed 2026-10-22 14:28 UTC

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[Copilot]

🟢 Approval recommended

The narrow fix consistently updates the template and generated files, includes targeted regression coverage, and has no unresolved findings.

No open issues 🎉

What changed in this PR

This PR makes trace exporters treat environment-configured unix-abstract:// endpoints as insecure, aligning them with Unix endpoints and the metric exporter behavior established in #8862.

Changes:

• Adds unix-abstract to the shared trace configuration’s insecure schemes.
• Updates both generated exporters and adds regression coverage for insecure configuration and gRPC target preservation.
• Documents the behavior change in the changelog.

No issues were identified. Reported test results were not independently rerun.

File	Description
internal/​shared/​otlp/​otlptrace/​otlpconfig/​options_test.go.tmpl	Adds the shared Unix abstract endpoint regression case.
internal/​shared/​otlp/​otlptrace/​otlpconfig/​envconfig.go.tmpl	Classifies Unix abstract endpoints as insecure.
exporters/​otlp/​otlptrace/​otlptracehttp/​internal/​otlpconfig/​options_test.go	Includes the generated regression case.
exporters/​otlp/​otlptrace/​otlptracehttp/​internal/​otlpconfig/​envconfig.go	Applies the generated scheme-handling fix.
exporters/​otlp/​otlptrace/​otlptracegrpc/​internal/​otlpconfig/​options_test.go	Includes the generated regression case.
exporters/​otlp/​otlptrace/​otlptracegrpc/​internal/​otlpconfig/​envconfig.go	Applies the generated scheme-handling fix.
CHANGELOG.md	Records the fix for both trace exporters.

_{Review effort: Balanced}

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.4%. Comparing base (5968638) to head (617d6b7).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##            main   #9261     +/-   ##
=======================================
- Coverage   89.4%   89.4%   -0.1%     
=======================================
  Files        346     346             
  Lines      22848   22848             
=======================================
- Hits       20443   20438      -5     
- Misses      2405    2410      +5     

Files with missing lines	Coverage Δ
...ace/otlptracegrpc/internal/otlpconfig/envconfig.go	91.5% <ø> (ø)
...ace/otlptracehttp/internal/otlpconfig/envconfig.go	91.5% <ø> (ø)

... and 6 files with indirect coverage changes

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