Don't forget to checkout Kubewarden's official documentation for more information about writing policies.
This repository contains a working policy written in Go.
The policy looks at the name of a Kubernetes namespace and rejects the request
if the name is on a deny list.
The deny list is configurable by the user via the runtime settings of the policy, as a default the IANA TLDs are used.
The configuration of the policy is expressed via this structure:
{
"denied_toplevel_domains": [ "com", "de" ]
}