Emojivoto Tutorial: Missing Cross-Service Tracing with Go Auto-Instrumentation

[littlemilkwu]

Describe the bug

I followed the tutorial documentation to deploy the Emojivoto application in a Kind environment:
Emojivoto - Tutorial

However, the tracing does not propagate across multiple components of the application.
For example, when visiting the leaderboard, the trace only shows GET /api/leaderboard from the web service, but it does not continue into the emoji service.

Moreover, there are no trace spans from the emoji service alone either( no spans are generated.

This might be due to the fact that Emojivoto is compiled with Go v1.15, which may currently have limited compatibility with the Go auto-instrumentation.

Environment

• OS: MacOS 15.5
• Go Version: 1.5
• Kind version: kind v0.29.0 go1.24.3 darwin/arm64

To Reproduce

Follow the tutorial guide linked above.

Expected behavior

The /api/leaderboard trace should show the full call chain, including spans from the emoji service.

Additional context

Add any other context about the problem here.

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[bohub12]

I encountered the same problem.