How to Add Custom Hostnames in Kubernetes CoreDNS?

Hey everyone, I'm trying to get some local host entries integrated into the CoreDNS of my Kubernetes setup. I've drafted a YAML to add custom DNS entries but when I boot a Fedora container, I can't see these entries in the host table. Here's what I've got:

```yaml
apiVersion: v1
kind: ConfigMap
metadata:
name: coredns-custom
namespace: kube-system
data:
# The key name can be anything, but must end with .override
local-containers.override: |
hosts {
192.168.12.6 oracle.fedora.local broker01.fedora.local broker02.fedora.local broker03.fedora.local oracle broker01 broker02 broker03

fallthrough
}
```

I noticed the config map seems to expect files in `etc/coredns/custom/*.override`, but I'm not sure if what I've created fits that requirement. I briefly experimented with adding a custom host block, but that broke DNS in the containers. Plus, a block for Docker hosts didn't persist. Ultimately, I'm just looking for a way to set up custom name resolution without going through the hassle of setting up a full DNS server. For what it's worth, after implementing the above configuration, my CoreDNS pod fails to start. Any insights would be greatly appreciated!