cluster stat name: lowercase Kind

Signed-off-by: Guy Daich <guy.daich@sap.com>

Author: guydc

internal/gatewayapi/route.go

@@ -2083,7 +2083,7 @@ func getStatPattern(routeContext RouteContext, parentRef *RouteParentContext) st
 func buildStatName(pattern string, route RouteContext, ruleName *gwapiv1.SectionName, idx int, refs []string) string {
 	statName := strings.ReplaceAll(pattern, egv1a1.StatFormatterRouteName, route.GetName())
 	statName = strings.ReplaceAll(statName, egv1a1.StatFormatterRouteNamespace, route.GetNamespace())
-	statName = strings.ReplaceAll(statName, egv1a1.StatFormatterRouteKind, route.GetObjectKind().GroupVersionKind().Kind)
+	statName = strings.ReplaceAll(statName, egv1a1.StatFormatterRouteKind, strings.ToLower(route.GetObjectKind().GroupVersionKind().Kind))
 	if ruleName == nil {
 		statName = strings.ReplaceAll(statName, egv1a1.StatFormatterRouteRuleName, "-")
 	} else {

internal/gatewayapi/testdata/envoyproxy-with-statname.out.yaml

@@ -230,7 +230,7 @@ xdsIR:
             name: httproute/default/httproute-1/rule/0/backend/1
             protocol: HTTP
             weight: 1
-          statName: HTTPRoute/default/httproute-1/foo/0/default/service-3|default/service-4
+          statName: httproute/default/httproute-1/foo/0/default/service-3|default/service-4
         hostname: gateway.envoyproxy.io
         isHTTP2: false
         metadata:
@@ -262,7 +262,7 @@ xdsIR:
             name: httproute/default/httproute-1/rule/1/backend/0
             protocol: HTTP
             weight: 1
-          statName: HTTPRoute/default/httproute-1/fallback/1/default/service-1
+          statName: httproute/default/httproute-1/fallback/1/default/service-1
         hostname: gateway.envoyproxy.io
         isHTTP2: false
         metadata:
@@ -326,7 +326,7 @@ xdsIR:
             name: grpcroute/default/grpcroute-1/rule/0/backend/3
             protocol: GRPC
             weight: 1
-          statName: GRPCRoute/default/grpcroute-1/-/0/default/service-1|default/service-2|default/service-3|default/service-4
+          statName: grpcroute/default/grpcroute-1/-/0/default/service-1|default/service-2|default/service-3|default/service-4
         hostname: '*'
         isHTTP2: true
         metadata: