use filter on downstream_cx_active stats url

Add a filter to prometheus stats url so that only the desired stats are returned. This improves the performance especially in clusters with high number of routes Signed-off-by: Ahmad Karimi <[email protected]>
snapp-incubator · Jun 20, 2024 · 0bcac42 · 0bcac42
1 parent 9f25ff6
commit 0bcac42
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/cmd/contour/shutdownmanager.go b/cmd/contour/shutdownmanager.go
@@ -31,7 +31,7 @@ import (
 )
 
 const (
-	prometheusURL      = "http://unix/stats/prometheus"
+	prometheusURL      = "http://unix/stats/prometheus?filter=http\\..*\\.downstream_cx_active"
 	healthcheckFailURL = "http://unix/healthcheck/fail"
 	prometheusStat     = "envoy_http_downstream_cx_active"
 )