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Michele Cereda
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# Prometheus on Kubernetes using Helm
Installation:
```sh
helm upgrade --install --namespace monitoring --create-namespace prometheus prometheus-community/prometheus
```
The server can be accessed via port 80 on `prometheus-server.monitoring.svc.cluster.local` from within the cluster.
Get the server URL:
```sh
export POD_NAME=$(kubectl get pods --namespace monitoring -l "app=prometheus,component=server" -o jsonpath="{.items[0].metadata.name}")
kubectl --namespace monitoring port-forward $POD_NAME 9090
```
Alertmanager can be accessed via port 80 on `prometheus-alertmanager.monitoring.svc.cluster.local` from within the cluster
Get Alertmanager's URL:
```sh
export POD_NAME=$(kubectl get pods --namespace monitoring -l "app=prometheus,component=alertmanager" -o jsonpath="{.items[0].metadata.name}")
kubectl --namespace monitoring port-forward $POD_NAME 9093
```
PushGateway can be accessed via port 9091 on `prometheus-pushgateway.monitoring.svc.cluster.local` from within the cluster
Get PushGateway's URL:
```sh
export POD_NAME=$(kubectl get pods --namespace monitoring -l "app=prometheus,component=pushgateway" -o jsonpath="{.items[0].metadata.name}")
```
## Further readings
- [Install Prometheus and Grafana with helm 3 on a local machine VM]
- [Set up prometheus and ingress on kubernetes]
## Sources
All the references in the [further readings] section, plus the following:
- [Helm chart]
<!-- project's references -->
[helm chart]: https://github.com/prometheus-community/helm-charts/tree/main/charts/prometheus
<!-- internal references -->
[further readings]: #further-readings
<!-- external references -->
[install prometheus and grafana with helm 3 on a local machine vm]: https://dev.to/ko_kamlesh/install-prometheus-grafana-with-helm-3-on-local-machine-vm-1kgj
[set up prometheus and ingress on kubernetes]: https://blog.gojekengineering.com/diy-how-to-set-up-prometheus-and-ingress-on-kubernetes-d395248e2ba