go get go.opentelemetry.io/otel/bridge/opentracing
Assuming you have configured an OpenTelemetry TracerProvider
, these will be the steps to follow to wire up the bridge:
import (
"go.opentelemetry.io/otel"
otelBridge "go.opentelemetry.io/otel/bridge/opentracing"
)
func main() {
/* Create tracerProvider and configure OpenTelemetry ... */
otelTracer := tracerProvider.Tracer("tracer_name")
// Use the bridgeTracer as your OpenTracing tracer.
bridgeTracer, wrapperTracerProvider := otelBridge.NewTracerPair(otelTracer)
// Set the wrapperTracerProvider as the global OpenTelemetry
// TracerProvider so instrumentation will use it by default.
otel.SetTracerProvider(wrapperTracerProvider)
/* ... */
}
In order to get OpenTracing spans properly into the OpenTelemetry context, so they can be propagated (both internally, and externally), you will need to explicitly use the BridgeTracer
for creating your OpenTracing spans, rather than a bare OpenTracing Tracer
instance.
When you have started an OpenTracing Span, make sure the OpenTelemetry knows about it like this:
ctxWithOTSpan := opentracing.ContextWithSpan(ctx, otSpan)
ctxWithOTAndOTelSpan := bridgeTracer.ContextWithSpanHook(ctxWithOTSpan, otSpan)
// Propagate the otSpan to both OpenTracing and OpenTelemetry
// instrumentation by using the ctxWithOTAndOTelSpan context.