adds metric middlware to route register

pkg/metrics/graphitebridge/graphite.go

@@ -54,7 +54,6 @@ const (
 )
 
 var metricCategoryPrefix []string = []string{"proxy_", "api_", "page_", "alerting_", "aws_", "db_", "stat_", "go_", "process_"}
-var ignorePrefix []string = []string{"http_"}
 
 // Config defines the Graphite bridge config.
 type Config struct {
@@ -206,18 +205,6 @@ func (b *Bridge) writeMetrics(w io.Writer, mfs []*dto.MetricFamily, prefix strin
 			return err
 		}
 
-		ignoreThisMetric := false
-		for _, v := range ignorePrefix {
-			if strings.HasPrefix(mf.GetName(), v) {
-				ignoreThisMetric = true
-				break
-			}
-		}
-
-		if ignoreThisMetric {
-			continue
-		}
-
 		buf := bufio.NewWriter(w)
 		for _, s := range vec {
 			if err := writePrefix(buf, prefix); err != nil {