BUG/MINOR: prevents clash on custom routes names to avoid unecessary …

…restarts

All custom routes are stored in the routes.CustomRoutes map using
the backend name as the key (`ServiceNS_ServiceName_PortName`). When
we encounter two distinct IngressRules, whether they are within
the same Ingress or not, and they utilize different hosts or paths
while pointing to the same Service, they end up sharing the same
key in CustomRoutes. This similarity in keys results in comparison
failures during every synchronization, requiring a hard reload of
HAProxy.

This PR addresses the issue by prepending the name of the Ingress
resource to the keys in route.CustomRoutes to prevent these conflicts
(`IngressName_ServiceNS_ServiceName_PortName`).

pkg/ingress/ingress.go

@@ -110,7 +110,7 @@ func (i *Ingress) handlePath(k store.K8s, h haproxy.HAProxy, host string, path *
 		BackendName:    backendName,
 		SSLPassthrough: i.sslPassthrough,
 	}
-	customRouteID := fmt.Sprintf("%s_%s:%s", i.resource.Namespace, i.resource.Name, backendName)
+	customRouteID := fmt.Sprintf("%s_%s", i.resource.Name, backendName)
 
 	routeACLAnn := a.String("route-acl", svc.GetResource().Annotations)
 	if routeACLAnn == "" {