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fix(docs): update values.yaml path for prometheus #757

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Sep 20, 2024
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fix(docs): update values.yaml path for prometheus #757

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18 changes: 8 additions & 10 deletions docs/02-Installation/04-Grafana/prometheus-unmanaged.md
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Expand Up @@ -15,44 +15,42 @@
helm repo update
```

2. Save **[these Prometheus values](https://github.com/microsoft/retina/blob/main/deploy/legacy/prometheus/values.yaml)** below to `deploy/legacy/prometheus/values.yaml`

3. Install the Prometheus chart
2. Install the Prometheus chart

```shell
helm install prometheus -n kube-system -f deploy/prometheus/values.yaml prometheus-community/kube-prometheus-stack
helm install prometheus -n kube-system -f deploy/legacy/prometheus/values.yaml prometheus-community/kube-prometheus-stack
```

Or if you already have the chart installed, upgrade how you see fit, providing the new job name as an additional scrape config, ex:

```shell
helm upgrade prometheus -n kube-system -f deploy/prometheus/values.yaml prometheus-community/kube-prometheus-stack
helm upgrade prometheus -n kube-system -f deploy/legacy/prometheus/values.yaml prometheus-community/kube-prometheus-stack
```

Note: Grafana and kube-state metrics may schedule on Windows nodes, the current chart doesn't have node affinity for those components. Some manual intervention may be required.

6. Verify that the Retina Pods are being scraped by port-forwarding the Prometheus server:
3. Verify that the Retina Pods are being scraped by port-forwarding the Prometheus server:

```shell
kubectl port-forward --namespace kube-system svc/prometheus-operated 9090
```

7. Then go to [http://localhost:9090/targets](http://localhost:9090/targets) to see the Retina Pods being discovered and scraped:
4. Then go to [http://localhost:9090/targets](http://localhost:9090/targets) to see the Retina Pods being discovered and scraped:

![alt text](../img/prometheus-retina-pods.png)

## Configuring Grafana

Create a Grafana instance at [grafana.com](https://www.grafana.com) and follow [Configuring Grafana](./grafana.md), or use the one installed from above.

8. Get the Grafana password:
1. Get the Grafana password:

```shell
kubectl get secret -n kube-system prometheus-grafana -o jsonpath="{.data.admin-password}" | base64 --decode ; echo
```

9. Import the new dashboard from **[here](https://grafana.com/grafana/dashboards/18814/)**.
2. Import the new dashboard from **[here](https://grafana.com/grafana/dashboards/18814/)**.

10. Metrics should be visible:
3. Metrics should be visible:

![alt text](../img/grafana-dashboard-metrics.png)
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