Beginner’s Guide to Jaeger + OpenTracing Instrumentation for Go

Albert Teoh's blog post provides a beginner-friendly guide to implementing Jaeger and OpenTracing instrumentation in Go applications through a practical example. It explains how to instrument Go services by utilizing OpenTracing's APIs and Jaeger as a tracer, covering key concepts such as starting and finishing spans, and injecting and extracting span contexts. The example involves two services, "service-a" and "service-b," which communicate through HTTP endpoints, and demonstrates how to generate and validate traces using the Jaeger UI. The post also provides a walkthrough of the code involved in setting up a tracer, managing spans, and ensuring proper parent-child relationships between spans for effective distributed tracing. Additionally, the post includes instructions for running the example project available on GitHub and highlights the importance of validating instrumentation by checking the Jaeger UI for proper trace generation.

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