Deploy Prometheus using Helm

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Deploy Prometheus using Helm - Amazon EKS

As an alternative to using Amazon Managed Service for Prometheus, you can deploy Prometheus into your cluster with Helm. If you already have Helm installed, you can check your version with the helm version command. Helm is a package manager for Kubernetes clusters. For more information about Helm and how to install it, see Deploy applications with Helm on Amazon EKS.

After you configure Helm for your Amazon EKS cluster, you can use it to deploy Prometheus with the following steps.

Create a Prometheus namespace.
```
kubectl create namespace prometheus
```

Add the prometheus-community chart repository.


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

Deploy Prometheus.
```
helm upgrade -i prometheus prometheus-community/prometheus \
    --namespace prometheus \
    --set alertmanager.persistence.storageClass="gp2" \
    --set server.persistentVolume.storageClass="gp2"
```
Note
If you get the error Error: failed to download "stable/prometheus" (hint: running helm repo update may help) when executing this command, run helm repo update prometheus-community, and then try running the Step 2 command again.

If you get the error Error: rendered manifests contain a resource that already exists, run helm uninstall your-release-name -n namespace, then try running the Step 3 command again.

Verify that all of the Pods in the prometheus namespace are in the READY state.


kubectl get pods -n prometheus

An example output is as follows.


NAME                                             READY   STATUS    RESTARTS   AGE
prometheus-alertmanager-59b4c8c744-r7bgp         1/2     Running   0          48s
prometheus-kube-state-metrics-7cfd87cf99-jkz2f   1/1     Running   0          48s
prometheus-node-exporter-jcjqz                   1/1     Running   0          48s
prometheus-node-exporter-jxv2h                   1/1     Running   0          48s
prometheus-node-exporter-vbdks                   1/1     Running   0          48s
prometheus-pushgateway-76c444b68c-82tnw          1/1     Running   0          48s
prometheus-server-775957f748-mmht9               1/2     Running   0          48s

Use kubectl to port forward the Prometheus console to your local machine.


kubectl --namespace=prometheus port-forward deploy/prometheus-server 9090

Point a web browser to http://localhost:9090 to view the Prometheus console.
Choose a metric from the - insert metric at cursor menu, then choose Execute. Choose the Graph tab to show the metric over time. The following image shows container_memory_usage_bytes over time.
From the top navigation bar, choose Status, then Targets.

All of the Kubernetes endpoints that are connected to Prometheus using service discovery are displayed.