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trace_provider.go
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/
trace_provider.go
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package telemetry
import (
"context"
"fmt"
"github.com/anoideaopen/foundation/proto"
"go.opentelemetry.io/otel"
"go.opentelemetry.io/otel/exporters/otlp/otlptrace"
"go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp"
"go.opentelemetry.io/otel/propagation"
"go.opentelemetry.io/otel/sdk/resource"
sdktrace "go.opentelemetry.io/otel/sdk/trace"
semconv "go.opentelemetry.io/otel/semconv/v1.17.0"
"go.opentelemetry.io/otel/trace"
)
// InstallTraceProvider returns trace provider based on http otlp exporter .
func InstallTraceProvider(
settings *proto.CollectorEndpoint,
serviceName string,
) {
var tracerProvider trace.TracerProvider
defer func() {
otel.SetTracerProvider(tracerProvider)
otel.SetTextMapPropagator(propagation.NewCompositeTextMapPropagator(propagation.TraceContext{}, propagation.Baggage{}))
}()
if settings == nil || len(settings.GetEndpoint()) == 0 {
tracerProvider = trace.NewNoopTracerProvider()
return
}
client := otlptracehttp.NewClient(
otlptracehttp.WithEndpoint(settings.GetEndpoint()),
otlptracehttp.WithInsecure(),
)
exporter, err := otlptrace.New(context.Background(), client)
if err != nil {
fmt.Printf("creating OTLP trace exporter: %v", err)
return
}
r, err := resource.Merge(
resource.Default(),
resource.NewWithAttributes(
semconv.SchemaURL,
semconv.ServiceName(serviceName)))
if err != nil {
fmt.Printf("creating resoure: %v", err)
return
}
tracerProvider = sdktrace.NewTracerProvider(
sdktrace.WithBatcher(exporter),
sdktrace.WithResource(r))
}