Public hostnames aren't propagated automatically

Public hostnames aren't propagated automatically. In the example below you can see our configuration:

```
cloudflare:
ingress:
- hostname: prom-server.domain.com
service: https://prometheus-server.monitoring:80
```

But these settings aren't applying automatically. It means that I still have to add public hostnames in Tunnel configuration manually. Are there any additional settings required? Or this functionality isn't working yet?


Start by reproducing the provided cloudflare.ingress configuration from the issue and inspect the Helm chart's handling of Tunnel configuration and public hostnames. Confirm whether the hostname is rendered and propagated automatically, and define done as either fixing that propagation or documenting the additional required settings.

Written by the indexing model from the issue text.