remove prom endpoint config field

Author: wllmshao

telemetry/metrics.go

@@ -94,7 +94,6 @@ type Config struct {
 	// Otlp Exporter fields
 	OtlpExporterEnabled   bool          `mapstructure:"otlp-exporter-enabled"`
 	OtlpCollectorHttpAddr string        `mapstructure:"otlp-collector-http-addr"`
-	PrometheusEndpoint    string        `mapstructure:"prometheus-endpoint"`
 	OtlpServiceName       string        `mapstructure:"otlp-service-name"`
 	OtlpPushInterval      time.Duration `mapstructure:"otlp-push-interval"`
 }

telemetry/otlp_exporter.go

@@ -48,15 +48,15 @@ func StartOtlpExporter(cfg Config) {
 
 	go func() {
 		for {
-			if err := scrapePrometheusMetrics(ctx, cfg.PrometheusEndpoint, meter, gauges, histograms); err != nil {
+			if err := scrapePrometheusMetrics(ctx, meter, gauges, histograms); err != nil {
 				log.Printf("error scraping metrics: %v", err)
 			}
 			time.Sleep(cfg.OtlpPushInterval)
 		}
 	}()
 }
 
-func scrapePrometheusMetrics(ctx context.Context, promEndpoint string, meter otmetric.Meter, gauges map[string]otmetric.Float64Gauge, histograms map[string]otmetric.Float64Histogram) error {
+func scrapePrometheusMetrics(ctx context.Context, meter otmetric.Meter, gauges map[string]otmetric.Float64Gauge, histograms map[string]otmetric.Float64Histogram) error {
 	metricFamilies, err := prometheus.DefaultGatherer.Gather()
 	if err != nil {
 		log.Printf("failed to gather prometheus metrics: %v", err)