Activating Prometheus on Eclipse Hono?

Question

i have recently installed eclipse-hono on a minikube with driver=none.

I want to use Grafana to show me the telemetry data and therefore I need to use Prometheus.

As you can see in the following picture, no port is assigned to Grafana or Prometheus.

This port needs to be exposed as I need to access the application from outside the server, where hono is running.

How can I activate the prometheus and grafana service?