I'm following this guide to set up an k8s ingress with a gcloud load balancer.

After creating a service and ingress in my cluster and deleting them I noticed that I run out of resources in the gcloud free trial quota.

Every time I create an ingress, k8s also creates a Backend Service and some other resources (Forwarding rules, Health checks, IP addresses, ...). But after I delete the k8s service and ingress this resources never get deleted.

Do I need to delete them manually or is there also a way to set up releasing of these resources?