Metrics: Use correct gatherer in graphite bridge (#100624)

pkg/infra/metrics/service.go

@@ -26,12 +26,13 @@ func (lw *logWrapper) Println(v ...any) {
 	lw.logger.Info("graphite metric bridge", v...)
 }
 
-func ProvideService(cfg *setting.Cfg, reg prometheus.Registerer) (*InternalMetricsService, error) {
+func ProvideService(cfg *setting.Cfg, reg prometheus.Registerer, gatherer prometheus.Gatherer) (*InternalMetricsService, error) {
 	initMetricVars(reg)
 	initFrontendMetrics(reg)
 
 	s := &InternalMetricsService{
-		Cfg: cfg,
+		Cfg:      cfg,
+		gatherer: gatherer,
 	}
 	return s, s.readSettings()
 }
@@ -41,6 +42,7 @@ type InternalMetricsService struct {
 
 	intervalSeconds int64
 	graphiteCfg     *graphitebridge.Config
+	gatherer        prometheus.Gatherer
 }
 
 func (im *InternalMetricsService) Run(ctx context.Context) error {

pkg/infra/metrics/settings.go

@@ -5,8 +5,6 @@ import (
 	"strings"
 	"time"
 
-	"github.com/prometheus/client_golang/prometheus"
-
 	"github.com/grafana/grafana/pkg/infra/metrics/graphitebridge"
 )
 
@@ -40,7 +38,7 @@ func (im *InternalMetricsService) parseGraphiteSettings() error {
 		URL:             address,
 		Prefix:          graphiteSection.Key("prefix").MustString("prod.grafana.%(instance_name)s"),
 		CountersAsDelta: true,
-		Gatherer:        prometheus.DefaultGatherer,
+		Gatherer:        im.gatherer,
 		Interval:        time.Duration(im.intervalSeconds) * time.Second,
 		Timeout:         10 * time.Second,
 		Logger:          &logWrapper{logger: metricsLogger},