zitadel/internal/telemetry/tracing/otel/open_telemetry.go
2022-04-28 17:35:56 +02:00

86 lines
2.7 KiB
Go

package otel
import (
"context"
"net/http"
"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"
)
type Tracer struct {
Exporter api_trace.Tracer
sampler sdk_trace.Sampler
}
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(""), sampler: sampler}, nil
}
func (t *Tracer) Sampler() sdk_trace.Sampler {
return t.sampler
}
func (t *Tracer) NewServerInterceptorSpan(ctx context.Context, name string) (context.Context, *tracing.Span) {
return t.newSpanFromName(ctx, name, api_trace.WithSpanKind(api_trace.SpanKindServer))
}
func (t *Tracer) NewServerSpan(ctx context.Context, caller string) (context.Context, *tracing.Span) {
return t.newSpan(ctx, caller, api_trace.WithSpanKind(api_trace.SpanKindServer))
}
func (t *Tracer) NewClientInterceptorSpan(ctx context.Context, name string) (context.Context, *tracing.Span) {
return t.newSpanFromName(ctx, name, api_trace.WithSpanKind(api_trace.SpanKindClient))
}
func (t *Tracer) NewClientSpan(ctx context.Context, caller string) (context.Context, *tracing.Span) {
return t.newSpan(ctx, caller, api_trace.WithSpanKind(api_trace.SpanKindClient))
}
func (t *Tracer) NewSpan(ctx context.Context, caller string) (context.Context, *tracing.Span) {
return t.newSpan(ctx, caller)
}
func (t *Tracer) newSpan(ctx context.Context, caller string, options ...api_trace.SpanStartOption) (context.Context, *tracing.Span) {
return t.newSpanFromName(ctx, caller, options...)
}
func (t *Tracer) newSpanFromName(ctx context.Context, name string, options ...api_trace.SpanStartOption) (context.Context, *tracing.Span) {
ctx, span := t.Exporter.Start(ctx, name, options...)
return ctx, tracing.CreateSpan(span)
}
func (t *Tracer) NewSpanHTTP(r *http.Request, caller string) (*http.Request, *tracing.Span) {
ctx, span := t.NewSpan(r.Context(), caller)
r = r.WithContext(ctx)
return r, span
}