Integration with Prometheus trait doesn't deploy on Minikube

[tadayosi]

Prometheus trait works fine on OpenShift, but on Minikube I cannot finish running the following on Minikube even with or without prometheus.service-monitor:

kamel run examples/simple.js -t prometheus.enabled=true -t prometheus.service-monitor=false

It keeps Deploying forever:

$ kamel get
NAME	PHASE		KIT
simple	Deploying	kit-bv7h9harqm6v2qmd9890

Note the pod still runs fine and the service simple-prometheus is also created behind the scenes, but the phase never changes to Running.

Versions info:

$ kamel version 
Camel K Client 1.3.0-SNAPSHOT

$ minikube version 
minikube version: v1.15.1
commit: 23f40a012abb52eff365ff99a709501a61ac5876

[tadayosi]

As it turns out, it's an issue not only on Minikube but also on k8s in general and even on OCP 3.11 where ServiceMonitor CRD is not provided. The root cause is that some bool properties on traits are really not effective and thus prometheus.service-monitor=false is neglected. Pls see my pull req above.