Getting Started with OpenTelemetry: Zero-Code Instrumentation, Custom Signals, and the Collector
“Instrumentation” is one of those words that gets thrown around constantly in the observability world - but what does it actually mean, and how does it work in practice? I’ve run this as a hands-on workshop several times, and what I find most effective is starting from first principles: build a tiny app, make it produce telemetry, and watch what comes out. By the end you understand why the pieces fit together the way they do. ...