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Add monitoring section to docs

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Signed-off-by: Stefan Prodan <stefan.prodan@gmail.com>
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Stefan Prodan 2024-04-11 11:41:19 +03:00
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@ -143,7 +143,7 @@ ingress-nginx 4.10.0 False True
podinfo 6.6.2 False True
```
> [!NOTE]
> [!TIP]
> Note that Flux detects changes made directly in-cluster on the objects managed
> by a HelmRelease and automatically [corrects the drift](https://fluxcd.io/flux/components/helm/helmreleases/#drift-detection).
> During an incident or for debugging purposes, you can manually suspend the reconciliation
@ -234,6 +234,20 @@ To enforce the RBAC restrictions, and to provision the controllers before the cu
3. `infra-configs` (cluster-wide custom resources - depends on `infra-controllers`)
4. `apps` (app workloads - depends on `infra-configs`)
> [!TIP]
> When managing a large numbers of tenants and clusters, it is recommended to use run a dedicated
> Flux instance for each group of clusters belonging to the same tenant. For more information
> on how to assign Flux instances to specific clusters, see the
> [Flux sharding and horizontal scaling guide](https://fluxcd.io/flux/installation/configuration/sharding/).
## Monitoring and alerting
To configure Prometheus, Loki and Grafana for monitoring the Flux controllers and the workloads reconciliation,
see the [monitoring example repository](https://github.com/fluxcd/flux2-monitoring-example).
To configure Flux to send events for Slack, Teams, Discord, Sentry and others external system,
you can follow the [alerting guide](https://fluxcd.io/flux/monitoring/alerts/).
## Testing
After making changes to the manifests, you can validate them locally with [kubeconform](https://github.com/yannh/kubeconform) by running: