use alternative translator

go.mod

@@ -86,6 +86,7 @@ require (
 	github.com/pires/go-proxyproto v0.11.0
 	github.com/pkg/sftp v1.13.9
 	github.com/prometheus/client_golang v1.23.2
+	github.com/prometheus/otlptranslator v1.0.0
 	github.com/quic-go/quic-go v0.55.0
 	github.com/redis/go-redis/v9 v9.7.3
 	github.com/rs/xid v1.3.0
@@ -254,7 +255,6 @@ require (
 	github.com/power-devops/perfstat v0.0.0-20240221224432-82ca36839d55 // indirect
 	github.com/prometheus/client_model v0.6.2 // indirect
 	github.com/prometheus/common v0.67.5 // indirect
-	github.com/prometheus/otlptranslator v1.0.0 // indirect
 	github.com/prometheus/procfs v0.19.2 // indirect
 	github.com/russellhaering/goxmldsig v1.5.0 // indirect
 	github.com/rymdport/portal v0.4.2 // indirect

management/server/telemetry/app_metrics.go

@@ -10,6 +10,7 @@ import (
 	"github.com/gorilla/mux"
 	prometheus2 "github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/client_golang/prometheus/promhttp"
+	"github.com/prometheus/otlptranslator"
 	log "github.com/sirupsen/logrus"
 	"go.opentelemetry.io/otel/exporters/prometheus"
 	metric2 "go.opentelemetry.io/otel/metric"
@@ -206,7 +207,9 @@ func (appMetrics *defaultAppMetrics) GetMeter() metric2.Meter {
 
 // NewDefaultAppMetrics and expose them via defaultEndpoint on a given HTTP port
 func NewDefaultAppMetrics(ctx context.Context) (AppMetrics, error) {
-	exporter, err := prometheus.New()
+	exporter, err := prometheus.New(
+		prometheus.WithTranslationStrategy(otlptranslator.UnderscoreEscapingWithoutSuffixes),
+	)
 	if err != nil {
 		return nil, fmt.Errorf("failed to create prometheus exporter: %w", err)
 	}

proxy/internal/metrics/metrics_test.go

@@ -8,6 +8,7 @@ import (
 	"testing"
 
 	"github.com/google/go-cmp/cmp"
+	"github.com/prometheus/otlptranslator"
 	"go.opentelemetry.io/otel/exporters/prometheus"
 	"go.opentelemetry.io/otel/sdk/metric"
 
@@ -51,7 +52,9 @@ func TestMetrics_RoundTripper(t *testing.T) {
 		},
 	}
 
-	exporter, err := prometheus.New()
+	exporter, err := prometheus.New(
+		prometheus.WithTranslationStrategy(otlptranslator.UnderscoreEscapingWithoutSuffixes),
+	)
 	if err != nil {
 		t.Fatalf("create prometheus exporter: %v", err)
 	}

proxy/server.go

@@ -27,6 +27,7 @@ import (
 	"github.com/pires/go-proxyproto"
 	prometheus2 "github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/client_golang/prometheus/promhttp"
+	"github.com/prometheus/otlptranslator"
 	log "github.com/sirupsen/logrus"
 	"go.opentelemetry.io/otel/exporters/prometheus"
 	"go.opentelemetry.io/otel/sdk/metric"
@@ -236,7 +237,9 @@ func (s *Server) ListenAndServe(ctx context.Context, addr string) (err error) {
 	s.svcPorts = make(map[types.ServiceID][]uint16)
 	s.lastMappings = make(map[types.ServiceID]*proto.ProxyMapping)
 
-	exporter, err := prometheus.New()
+	exporter, err := prometheus.New(
+		prometheus.WithTranslationStrategy(otlptranslator.UnderscoreEscapingWithoutSuffixes),
+	)
 	if err != nil {
 		return fmt.Errorf("create prometheus exporter: %w", err)
 	}

shared/metrics/metrics.go

@@ -8,6 +8,7 @@ import (
 
 	prometheus2 "github.com/prometheus/client_golang/prometheus"
 	"github.com/prometheus/client_golang/prometheus/promhttp"
+	"github.com/prometheus/otlptranslator"
 	"go.opentelemetry.io/otel"
 	"go.opentelemetry.io/otel/exporters/prometheus"
 	api "go.opentelemetry.io/otel/metric"
@@ -27,7 +28,9 @@ type Metrics struct {
 
 // NewServer initializes and returns a new Metrics instance
 func NewServer(port int, endpoint string) (*Metrics, error) {
-	exporter, err := prometheus.New()
+	exporter, err := prometheus.New(
+		prometheus.WithTranslationStrategy(otlptranslator.UnderscoreEscapingWithoutSuffixes),
+	)
 	if err != nil {
 		return nil, err
 	}