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add retention time hint #1812

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add retention time hint #1812

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2 changes: 2 additions & 0 deletions docs/customizing.md
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Expand Up @@ -164,6 +164,8 @@ be created successfully.

Check the monitoring namespace (or the namespace you have specific in `namespace: `) and make sure the pods are running. Prometheus and Grafana should be up and running soon.

If you want to increase retention time make sure you will add retention: 1y in `prometheus-prometheus.yaml `
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I don't think it's the right place otherwise we would have to enumerate all possible settings. If your workflow is to update manually the YAML manifests generated by kube-prometheus then the right source of information is https://prometheus-operator.dev/docs/operator/api/#monitoring.coreos.com/v1.PrometheusSpec (it has a description of the CRD fields).
Having said there could be a parameter in https://github.com/prometheus-operator/kube-prometheus/blob/main/jsonnet/kube-prometheus/components/prometheus.libsonnet to define the retention value?


## Minikube Example

To use an easy to reproduce example, see [minikube.jsonnet](../examples/minikube.jsonnet), which uses the minikube setup as demonstrated in [Prerequisites](../README.md#prerequisites). Because we would like easy access to our Prometheus, Alertmanager and Grafana UIs, `minikube.jsonnet` exposes the services as NodePort type services.