Hardened Images catalog | Kube Prometheus Stack Helm chart | Guides

dhi.io/kube-prometheus-stack-chart

Kube Prometheus Stack Helm chart

End-to-end Kubernetes cluster monitoring with Prometheus using the Prometheus Operator, including Alertmanager, Grafana, and exporters.

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Installing the chart

Installation steps

All examples in this guide use the public chart and images. If you've mirrored the repository for your own use (for example, to your Docker Hub namespace), update your commands to reference the mirrored chart instead of the public one.

For example:

Public chart: oci://dhi.io/kube-prometheus-stack-chart
Mirrored chart: oci://<your-registry>/<your-namespace>/kube-prometheus-stack-chart

For more details about customizing the chart to reference other images, see the documentation⁠.

Step 1: Optional. Mirror the Helm chart and/or its images to your own registry

To optionally mirror a chart to your own third-party registry, follow the instructions in How to mirror an image⁠ for either the chart, the image, or both. The same regctl tool used for container images can mirror Helm charts as OCI artifacts.

Step 2: Create a Kubernetes secret for pulling images

The Docker Hardened Images that the chart uses require authentication. Create a Kubernetes secret with your Docker Hub credentials or with the credentials for your own registry.

Follow the authentication instructions for DHI in Kubernetes⁠.

kubectl create secret docker-registry helm-pull-secret \
  --docker-server=dhi.io \
  --docker-username=<Docker username> \
  --docker-password=<Docker token> \
  --docker-email=<Docker email>

Step 3: Install the Helm chart

Use helm install. Run helm login before helm install if using the DHI registry.

helm install my-kube-prometheus-stack oci://dhi.io/kube-prometheus-stack-chart --version <version> \
  --set "global.imagePullSecrets[0].name=helm-pull-secret"

Replace <version> with the chart version. Replace dhi.io and helm-pull-secret if using your own registry or secret.

Note: Windows monitoring is disabled by default (windowsMonitoring.enabled: false) and should not be enabled, as this chart does not include the prometheus-windows-exporter subchart.

Step 4: Verify the installation

Check that the stack components are running:

kubectl get all
NAME                                                               READY   STATUS    RESTARTS   AGE
pod/alertmanager-my-kube-prometheus-stack-k-alertmanager-0         2/2     Running   0          3m11s
pod/my-kube-prometheus-stack-grafana-559cc98657-t6djg              3/3     Running   0          3m12s
pod/my-kube-prometheus-stack-k-operator-669f9b9cdf-rflrb           1/1     Running   0          3m12s
pod/my-kube-prometheus-stack-kube-state-metrics-66559fb987-qrmlt   1/1     Running   0          3m12s
pod/my-kube-prometheus-stack-prometheus-node-exporter-c2bzx        1/1     Running   0          3m12s
pod/my-kube-prometheus-stack-prometheus-node-exporter-mw279        1/1     Running   0          3m12s
pod/my-kube-prometheus-stack-prometheus-node-exporter-w84d2        1/1     Running   0          3m12s
pod/prometheus-my-kube-prometheus-stack-k-prometheus-0             2/2     Running   0          3m11s

NAME                                                        TYPE        CLUSTER-IP      EXTERNAL-IP   PORT(S)                      AGE
service/alertmanager-operated                               ClusterIP   None            <none>        9093/TCP,9094/TCP,9094/UDP   3m11s
service/kubernetes                                          ClusterIP   10.43.0.1       <none>        443/TCP                      24h
service/my-kube-prometheus-stack-grafana                    ClusterIP   10.43.223.67    <none>        80/TCP                       3m12s
service/my-kube-prometheus-stack-k-alertmanager             ClusterIP   10.43.199.150   <none>        9093/TCP,8080/TCP            3m12s
service/my-kube-prometheus-stack-k-operator                 ClusterIP   10.43.171.158   <none>        443/TCP                      3m12s
service/my-kube-prometheus-stack-k-prometheus               ClusterIP   10.43.251.61    <none>        9090/TCP,8080/TCP            3m12s
service/my-kube-prometheus-stack-kube-state-metrics         ClusterIP   10.43.180.90    <none>        8080/TCP                     3m12s
service/my-kube-prometheus-stack-prometheus-node-exporter   ClusterIP   10.43.243.209   <none>        9100/TCP                     3m12s
service/prometheus-operated                                 ClusterIP   None            <none>        9090/TCP                     3m11s

NAME                                                               DESIRED   CURRENT   READY   UP-TO-DATE   AVAILABLE   NODE SELECTOR            AGE
daemonset.apps/my-kube-prometheus-stack-prometheus-node-exporter   3         3         3       3            3           kubernetes.io/os=linux   3m12s

NAME                                                          READY   UP-TO-DATE   AVAILABLE   AGE
deployment.apps/my-kube-prometheus-stack-grafana              1/1     1            1           3m12s
deployment.apps/my-kube-prometheus-stack-k-operator           1/1     1            1           3m12s
deployment.apps/my-kube-prometheus-stack-kube-state-metrics   1/1     1            1           3m12s

NAME                                                                     DESIRED   CURRENT   READY   AGE
replicaset.apps/my-kube-prometheus-stack-grafana-559cc98657              1         1         1       3m12s
replicaset.apps/my-kube-prometheus-stack-k-operator-669f9b9cdf           1         1         1       3m12s
replicaset.apps/my-kube-prometheus-stack-kube-state-metrics-66559fb987   1         1         1       3m12s

NAME                                                                    READY   AGE
statefulset.apps/alertmanager-my-kube-prometheus-stack-k-alertmanager   1/1     3m11s
statefulset.apps/prometheus-my-kube-prometheus-stack-k-prometheus       1/1     3m11s

To get the Grafana admin password, by default it will be in a secret suffixed with "-grafana"

kubectl get secret --namespace <namespace> my-kube-prometheus-stack-grafana -o jsonpath="{.data.admin-password}" | base64 --decode ; echo

Port-forward to access Grafana:

kubectl port-forward --namespace <namespace> svc/my-kube-prometheus-stack-grafana 3000:80

Then open http://localhost:3000⁠ and log in with user admin and the password from above.