use feature gate to disable metrics remapping

Author: mabdinur

exporter/datadogexporter/factory.go

@@ -53,6 +53,12 @@ var metricExportNativeClientFeatureGate = featuregate.GlobalRegistry().MustRegis
 	featuregate.WithRegisterDescription("When enabled, metric export in datadogexporter uses native Datadog client APIs instead of Zorkian APIs."),
 )
 
+var metricRemappingEnabledFeatureGate = featuregate.GlobalRegistry().MustRegister(
+	"exporter.datadogexporter.metricremappingenabled",
+	featuregate.StageBeta,
+	featuregate.WithRegisterDescription("When set the Datadog Exporter does not remap Opentelemetry metrics to Datadog semantics."),
+)
+
 // noAPMStatsFeatureGate causes the trace consumer to skip APM stats computation.
 var noAPMStatsFeatureGate = featuregate.GlobalRegistry().MustRegister(
 	"exporter.datadogexporter.DisableAPMStats",
@@ -65,6 +71,11 @@ func isMetricExportV2Enabled() bool {
 	return metricExportNativeClientFeatureGate.IsEnabled()
 }
 
+// isMetricRemappingEnabled returns true if the datadogexporter should generate Datadog-compliant metrics from OpenTelemetry metrics
+func isMetricRemappingEnabled() bool {
+	return metricRemappingEnabledFeatureGate.IsEnabled()
+}
+
 func isLogsAgentExporterEnabled() bool {
 	return logsAgentExporterFeatureGate.IsEnabled()
 }

exporter/datadogexporter/metrics_exporter.go

@@ -55,7 +55,12 @@ func translatorFromConfig(set component.TelemetrySettings, cfg *Config, attrsTra
 	options := []otlpmetrics.TranslatorOption{
 		otlpmetrics.WithDeltaTTL(cfg.Metrics.DeltaTTL),
 		otlpmetrics.WithFallbackSourceProvider(sourceProvider),
-		otlpmetrics.WithRemapping(),
+	}
+
+	if isMetricRemappingEnabled() {
+		options = append(options, otlpmetrics.WithRemapping())
+	} else {
+		set.Logger.Warn("Metric remapping is disabled in the Datadog exporter. OpenTelemetry metrics must be mapped to Datadog metrics.")
 	}
 
 	if cfg.Metrics.HistConfig.SendAggregations {