Prometheus rules and runtime reload

[EnthuDeveloper]

Hello,
I am trying helm charts(prometheus operator ) to install Prometheus and Alertmanager. Looking for some recommendations as to what the preferable options are for :
1. Reading alert rules generated from our application in form of a yaml file and loading them to container running Prometheus ?
2. How to reload the alert rules for prometheus in case , the rules yaml file generated by our application sees any modifications.

Any recommendations would be much appreciated ?

Thanks.

[Frederic Branczyk]

I don’t know the exact setup of the helm chart, but generally those use cases are covered by the prometheus operator. The first by provisioning PrometheusRule objects in the application namespace and the second, Prometheus is simply automatically reloaded when the new rule appears in the container, which because of configmap reload times, this can be up to 5minutes delay.

I recommend going through the alerting user guide to understand the components involved: 

https://github.com/coreos/prometheus-operator/blob/master/Documentation/user-guides/alerting.md

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