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nginx metrics + dashboards

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Dominik Chilla 2022-10-29 12:21:14 +02:00
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@ -25,6 +25,8 @@
* [Cluster monitoring](#cluster-monitoring)
* [Log correlation with Loki-stack](#loki-stack)
* [Metrics with Prometheus-stack + Grafana](#prometheus-grafana)
* [Nginx ingress controller](#prometheus-nginx-ingress)
* [Grafana dashboard for Node exporter full](#prometheus-node-exporter)
* [HELM charts](#helm)
* [Create a chart](#helm-create)
* [Install local chart without packaging](#helm-install-without-packaging)
@ -608,6 +610,35 @@ Access grafana web ui via port-forwarding at http://localhost:8080 (or configure
kubectl -n monitoring port-forward service/prom-stack-grafana 8080:80
```
## Metrics/Dashboard for Nginx ingress controller <a name="user-content-prometheus-nginx-ingress"></a>
If you want to monitor the NGINX ingress-controller as well, you´ll have to redeploy the nginx-ingress helm chart as follows:
```
helm -n ingress-nginx upgrade ingress-nginx ingress-nginx/ingress-nginx \
--set controller.metrics.enabled=true \
--set controller.metrics.serviceMonitor.enabled=true \
--set controller.metrics.serviceMonitor.additionalLabels.release="prom-stack"
```
**Note:** *controller.metrics.serviceMonitor.additionalLabels.release* must match the helm release/name of your prometheus-stack deployment:
```
helm -n monitoring ls
NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION
[...]
prom-stack monitoring 18 2022-10-09 23:38:07.258368513 +0200 CEST deployed kube-prometheus-stack-40.3.1 0.59.2
```
Eventually a re-deployment of prometheus will be needed:
```
kubectl -n monitoring rollout restart deployment prom-stack-kube-state-metrics
kubectl -n monitoring rollout restart statefulset prometheus-prom-stack-kube-prometheus-prometheus
```
Next, import the official Nginx-ingress dashboard into grafana.
1. Go to https://grafana.com/grafana/dashboards/9614-nginx-ingress-controller and get the id of the dashboard template. In this example it will be `9614`.
1. In the Grafana-UI navigate to `Dashboard` -> `+ New folder` panel and create a new folder named `NGINX ingress controller`.
1. In the Grafana-UI navigate to `Dashboard` -> `+ Import` panel, fill in the Grafana.com-ID=`9614`. Import the dashboard into the newly created folder `NGINX ingress controller`.
## Grafana dashboard for Node exporter <a name="user-content-prometheus-node-exporter"></a>
https://grafana.com/grafana/dashboards/10242-node-exporter-full/
# HELM charts <a name="user-content-helm"></a>
Docs:
* https://helm.sh/docs/intro/using_helm/