https://github.com/prometheus-community/helm-charts/tree/main/charts/kube-prometheus-stack#configuration


```
helm repo add prometheus-community https://prometheus-community.github.io/helm-charts
helm repo update
```

Use for `helm` values:
https://github.com/cablespaghetti/k3s-monitoring/blob/master/kube-prometheus-stack-values.yaml

```
helm upgrade --install prometheus prometheus-community/kube-prometheus-stack \
 --create-namespace \ 
 --namespace monitoring \ 
 --values kube-prometheus-stack-values.yaml
```

Accessing UIs via PortForwarding
```
kubectl port-forward svc/prometheus-grafana 8080:80 -n monitoring
kubectl port-forward svc/prometheus-kube-prometheus-prometheus 9090 -n monitoring
kubectl port-forward svc/prometheus-kube-prometheus-alertmanager 9093 -n monitoring
```

This will make Grafana accessible on http://localhost:8080, Prometheus on http://localhost:9090 and Alert Manager on http://localhost:9093

Get Grafana Password via:
```
kubectl get secret --namespace monitoring -l app.kubernetes.io/component=admin-secret -o jsonpath="{.items[0].data.admin-password}" | base64 --decode ; echo
``` 
Login for Grafana:
**User:** admin