Backend describes one or more remote server/s (endpoints) associated with a service +k8s:deepcopy-gen=true.

Configuration holds the definition of all the parts required to describe all ingresses reachable by the ingress controller (using a filter by namespace).

Endpoint describes a kubernetes endpoint in a backend +k8s:deepcopy-gen=true.

Location describes an URI inside a server.

Server describes a website.

SSLCert describes a SSL certificate to be used in a server.