Decrease value of limit before "Namespace quota is going to be full.

[PG2000]

Hello,

as some experience of day to day problems with resource quotas it think it would make sense to decrease the default value to 0.75. for the warning alert.

https://github.com/prometheus-operator/kube-prometheus/blob/408f3863905f0f9ba1679592fd65a4d7793e7021/manifests/kubernetes-prometheusRule.yaml#L306

I often was informed by a team or user when this happens after they tried to restart an deployment, statefulset etc. and the alert has not be thrown as the limit was to high.

Same here:

https://github.com/prometheus-operator/kube-prometheus/blob/408f3863905f0f9ba1679592fd65a4d7793e7021/manifests/kubernetes-prometheusRule.yaml#L319

Could this ever happen that it will be exactly 1

So, what is your experience with this? If this makes sense i could provide a PR.