feat: set service name in tracing (#3533)

internal/telemetry/tracing/google/google_tracer.go

@@ -12,15 +12,13 @@ import (
 )
 
 type Config struct {
-	ProjectID    string
+	ProjectID string
-	MetricPrefix string
+	Fraction  float64
-	Fraction     float64
 }
 
 func NewTracer(rawConfig map[string]interface{}) (err error) {
 	c := new(Config)
 	c.ProjectID, _ = rawConfig["projectid"].(string)
-	c.MetricPrefix, _ = rawConfig["metricprefix"].(string)
 	fraction, ok := rawConfig["fraction"].(string)
 	if ok {
 		c.Fraction, err = strconv.ParseFloat(fraction, 32)
@@ -43,7 +41,6 @@ func (c *Config) NewTracer() error {
 		return err
 	}
 
-	tracing.T = &Tracer{Tracer: *(otel.NewTracer(c.MetricPrefix, sampler, exporter))}
+	tracing.T, err = otel.NewTracer(sampler, exporter)
-
+	return err
-	return nil
 }

internal/telemetry/tracing/log/config.go

@@ -12,13 +12,11 @@ import (
 )
 
 type Config struct {
-	Fraction     float64
+	Fraction float64
-	MetricPrefix string
 }
 
 func NewTracer(rawConfig map[string]interface{}) (err error) {
 	c := new(Config)
-	c.MetricPrefix, _ = rawConfig["metricprefix"].(string)
 	fraction, ok := rawConfig["fraction"].(string)
 	if ok {
 		c.Fraction, err = strconv.ParseFloat(fraction, 32)
@@ -41,6 +39,6 @@ func (c *Config) NewTracer() error {
 		return err
 	}
 
-	tracing.T = &Tracer{Tracer: *(otel.NewTracer(c.MetricPrefix, sampler, exporter))}
+	tracing.T, err = otel.NewTracer(sampler, exporter)
-	return nil
+	return err
 }

internal/telemetry/tracing/otel/config.go

@@ -12,15 +12,13 @@ import (
 )
 
 type Config struct {
-	Fraction     float64
+	Fraction float64
-	MetricPrefix string
+	Endpoint string
-	Endpoint     string
 }
 
 func NewTracerFromConfig(rawConfig map[string]interface{}) (err error) {
 	c := new(Config)
 	c.Endpoint, _ = rawConfig["endpoint"].(string)
-	c.MetricPrefix, _ = rawConfig["metricprefix"].(string)
 	fraction, ok := rawConfig["fraction"].(string)
 	if ok {
 		c.Fraction, err = strconv.ParseFloat(fraction, 32)
@@ -39,6 +37,6 @@ func (c *Config) NewTracer() error {
 		return err
 	}
 
-	tracing.T = NewTracer(c.MetricPrefix, sampler, exporter)
+	tracing.T, err = NewTracer(sampler, exporter)
-	return nil
+	return err
 }

internal/telemetry/tracing/otel/open_telemetry.go

@@ -6,7 +6,9 @@ import (
 
 	"go.opentelemetry.io/otel"
 	"go.opentelemetry.io/otel/propagation"
+	"go.opentelemetry.io/otel/sdk/resource"
 	sdk_trace "go.opentelemetry.io/otel/sdk/trace"
+	semconv "go.opentelemetry.io/otel/semconv/v1.7.0"
 	api_trace "go.opentelemetry.io/otel/trace"
 
 	"github.com/zitadel/zitadel/internal/telemetry/tracing"
@@ -17,19 +19,30 @@ type Tracer struct {
 	sampler  sdk_trace.Sampler
 }
 
-func NewTracer(name string, sampler sdk_trace.Sampler, exporter sdk_trace.SpanExporter) *Tracer {
+func NewTracer(sampler sdk_trace.Sampler, exporter sdk_trace.SpanExporter) (*Tracer, error) {
+	resource, err := resource.Merge(
+		resource.Default(),
+		resource.NewWithAttributes(
+			semconv.SchemaURL,
+			semconv.ServiceNameKey.String("ZITADEL"),
+		),
+	)
+	if err != nil {
+		return nil, err
+	}
 	spanProcessor := sdk_trace.NewBatchSpanProcessor(exporter)
 	tp := sdk_trace.NewTracerProvider(
 		sdk_trace.WithSampler(sampler),
 		sdk_trace.WithBatcher(exporter),
 		sdk_trace.WithSpanProcessor(spanProcessor),
+		sdk_trace.WithResource(resource),
 	)
 
 	otel.SetTracerProvider(tp)
 	tc := propagation.TraceContext{}
 	otel.SetTextMapPropagator(tc)
 
-	return &Tracer{Exporter: tp.Tracer(name), sampler: sampler}
+	return &Tracer{Exporter: tp.Tracer(""), sampler: sampler}, nil
 }
 
 func (t *Tracer) Sampler() sdk_trace.Sampler {

internal/telemetry/tracing/span.go

@@ -1,9 +1,10 @@
 package tracing
 
 import (
-	grpc_errs "github.com/zitadel/zitadel/internal/api/grpc/errors"
 	"go.opentelemetry.io/otel/attribute"
 	"go.opentelemetry.io/otel/trace"
+
+	grpc_errs "github.com/zitadel/zitadel/internal/api/grpc/errors"
 )
 
 type Span struct {