fix: otel not working without USER

pkg/proxy/httputil/builder.go

@@ -8,7 +8,7 @@ import (
 	"time"
 
 	"github.com/traefik/traefik/v3/pkg/config/dynamic"
-	"github.com/traefik/traefik/v3/pkg/metrics"
+	"github.com/traefik/traefik/v3/pkg/observability/metrics"
 )
 
 // TransportManager manages transport used for backend communications.

pkg/proxy/httputil/observability.go

@@ -9,9 +9,9 @@ import (
 	"strings"
 	"time"
 
-	"github.com/traefik/traefik/v3/pkg/metrics"
 	"github.com/traefik/traefik/v3/pkg/middlewares/observability"
-	"github.com/traefik/traefik/v3/pkg/tracing"
+	"github.com/traefik/traefik/v3/pkg/observability/metrics"
+	"github.com/traefik/traefik/v3/pkg/observability/tracing"
 	"go.opentelemetry.io/otel/attribute"
 	semconv "go.opentelemetry.io/otel/semconv/v1.37.0"
 	"go.opentelemetry.io/otel/semconv/v1.37.0/httpconv"

pkg/proxy/httputil/observability_test.go

@@ -8,9 +8,9 @@ import (
 
 	"github.com/stretchr/testify/require"
 	ptypes "github.com/traefik/paerser/types"
-	"github.com/traefik/traefik/v3/pkg/metrics"
 	"github.com/traefik/traefik/v3/pkg/middlewares/observability"
-	"github.com/traefik/traefik/v3/pkg/types"
+	"github.com/traefik/traefik/v3/pkg/observability/metrics"
+	otypes "github.com/traefik/traefik/v3/pkg/observability/types"
 	"go.opentelemetry.io/otel/attribute"
 	sdkmetric "go.opentelemetry.io/otel/sdk/metric"
 	"go.opentelemetry.io/otel/sdk/metric/metricdata"
@@ -59,7 +59,7 @@ func TestObservabilityRoundTripper_metrics(t *testing.T) {
 		t.Run(test.desc, func(t *testing.T) {
 			t.Parallel()
 
-			var cfg types.OTLP
+			var cfg otypes.OTLP
 			(&cfg).SetDefaults()
 			cfg.AddRoutersLabels = true
 			cfg.PushInterval = ptypes.Duration(10 * time.Millisecond)

pkg/proxy/httputil/proxy.go

@@ -15,7 +15,7 @@ import (
 
 	"github.com/rs/zerolog"
 	"github.com/rs/zerolog/log"
-	"github.com/traefik/traefik/v3/pkg/logs"
+	"github.com/traefik/traefik/v3/pkg/observability/logs"
 	"golang.org/x/net/http/httpguts"
 )