Feat: add HTTPRoute-rule name to envoy route metadata

internal/gatewayapi/route.go

@@ -362,6 +362,10 @@ func (t *Translator) processHTTPRouteRule(httpRoute *HTTPRouteContext, ruleIdx i
 			Name:               irRouteName(httpRoute, ruleIdx, matchIdx),
 			SessionPersistence: sessionPersistence,
 		}
+		irRoute.Metadata = buildRouteMetadata(httpRoute)
+		if rule.Name != nil {
+			irRoute.Metadata.SectionName = string(*rule.Name)
+		}
 		processRouteTimeout(irRoute, rule)
 
 		if match.Path != nil {
@@ -696,7 +700,6 @@ func (t *Translator) processHTTPRouteParentRefListener(route RouteContext, route
 			continue
 		}
 		hasHostnameIntersection = true
-		routeMetadata := buildRouteMetadata(route)
 
 		var perHostRoutes []*ir.HTTPRoute
 		for _, host := range hosts {
@@ -721,6 +724,10 @@ func (t *Translator) processHTTPRouteParentRefListener(route RouteContext, route
 				// Remove dots from the hostname before appending it to the IR Route name
 				// since dots are special chars used in stats tag extraction in Envoy
 				underscoredHost := strings.ReplaceAll(host, ".", "_")
+				routeMetadata := routeRoute.Metadata
+				if routeMetadata == nil { // if metadata was not set in the matcher evaluation phase, build it here
+					routeMetadata = buildRouteMetadata(route)
+				}
 				hostRoute := &ir.HTTPRoute{
 					Name:                  fmt.Sprintf("%s/%s", routeRoute.Name, underscoredHost),
 					Metadata:              routeMetadata,

internal/gatewayapi/testdata/httproute-with-invalid-regex.in.yaml

@@ -46,3 +46,4 @@ httpRoutes:
           backendRefs:
             - name: service-1
               port: 8080
+          name: rule-1

internal/gatewayapi/testdata/httproute-with-invalid-regex.out.yaml

@@ -98,6 +98,7 @@ httpRoutes:
       - path:
           type: RegularExpression
           value: '*.foo.bar.com'
+      name: rule-1
   status:
     parents:
     - conditions:

internal/gatewayapi/testdata/httproute-with-metadata.in.yaml

@@ -31,4 +31,5 @@ httpRoutes:
     - backendRefs:
       - name: service-1
         port: 8080
+      name: rule-1
 

internal/gatewayapi/testdata/httproute-with-metadata.out.yaml

@@ -58,6 +58,7 @@ httpRoutes:
     - backendRefs:
       - name: service-1
         port: 8080
+      name: rule-1
   status:
     parents:
     - conditions: