/
trace.go
52 lines (45 loc) · 1.26 KB
/
trace.go
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package main
import (
"context"
"go.opentelemetry.io/otel"
"go.opentelemetry.io/otel/attribute"
"go.opentelemetry.io/otel/exporters/otlp/otlptrace"
"go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc"
"go.opentelemetry.io/otel/propagation"
"go.opentelemetry.io/otel/sdk/resource"
sdktrace "go.opentelemetry.io/otel/sdk/trace"
"go.uber.org/zap"
)
func initTracer() func(context.Context) error {
logger, _ := zap.NewProduction()
secureOption := otlptracegrpc.WithInsecure()
exporter, err := otlptrace.New(
context.Background(),
otlptracegrpc.NewClient(
secureOption,
otlptracegrpc.WithEndpoint("otel-collector:4317"),
),
)
if err != nil {
logger.Fatal(err.Error())
}
resources, err := resource.New(
context.Background(),
resource.WithAttributes(
attribute.String("service.name", "workflow-engine"),
attribute.String("library.language", "go"),
),
)
if err != nil {
logger.Error(err.Error())
}
otel.SetTracerProvider(
sdktrace.NewTracerProvider(
sdktrace.WithSampler(sdktrace.AlwaysSample()),
sdktrace.WithBatcher(exporter),
sdktrace.WithResource(resources),
),
)
otel.SetTextMapPropagator(propagation.NewCompositeTextMapPropagator(propagation.TraceContext{}, propagation.Baggage{}))
return exporter.Shutdown
}