forked from go-kratos/kratos-layout
/
tracer.go
70 lines (66 loc) · 1.85 KB
/
tracer.go
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package data
import (
"context"
"time"
"github.com/go-cinch/common/log"
"github.com/go-cinch/layout/internal/conf"
"github.com/pkg/errors"
"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/exporters/stdout/stdouttrace"
"go.opentelemetry.io/otel/sdk/resource"
"go.opentelemetry.io/otel/sdk/trace"
semconv "go.opentelemetry.io/otel/semconv/v1.12.0"
"google.golang.org/grpc"
)
func NewTracer(c *conf.Bootstrap) (tp *trace.TracerProvider, err error) {
defer func() {
e := recover()
if e != nil {
err = errors.Errorf("%v", e)
}
}()
if !c.Tracer.Enable {
log.Info("skip initialize tracer")
return
}
ctx, cancel := context.WithTimeout(context.Background(), 10*time.Second)
defer cancel()
var exporter trace.SpanExporter
if c.Tracer.Otlp.Endpoint != "" {
// rpc driver
driverOpts := []otlptracegrpc.Option{
otlptracegrpc.WithEndpoint(c.Tracer.Otlp.Endpoint),
otlptracegrpc.WithDialOption(grpc.WithBlock()),
}
if c.Tracer.Otlp.Insecure {
driverOpts = append(driverOpts, otlptracegrpc.WithInsecure())
}
driver := otlptracegrpc.NewClient(driverOpts...)
exporter, err = otlptrace.New(ctx, driver)
} else {
// stdout driver
if c.Tracer.Stdout.PrettyPrint {
exporter, err = stdouttrace.New(stdouttrace.WithPrettyPrint())
} else {
exporter, err = stdouttrace.New()
}
}
if err != nil {
err = errors.WithMessage(err, "initialize tracer failed")
return
}
tp = trace.NewTracerProvider(
trace.WithSampler(trace.AlwaysSample()),
trace.WithSyncer(exporter),
trace.WithResource(resource.NewSchemaless(
semconv.ServiceNameKey.String(c.Name),
attribute.String("exporter", "otlp"),
)),
)
otel.SetTracerProvider(tp)
log.Info("initialize tracer success")
return
}