Monitor persistent volume claims on Kubernetes/OpenShift

Dynatrace version 1.240+

ActiveGate version 1.239+

In Kubernetes, persistent data is stored in persistent volume claims (PVCs). Dynatrace provides you the needed insights into your persistent volume claims capacity.

• You can add a dedicated Kubernetes persistent volume claims preset dashboard to Dynatrace (extension required) that allows you to analyze your persistent volume claims based on total capacity, usage, remaining free space, and growth rates.
• Templates for custom alerts enable you to alert on related issues, such as persistent volume claims running out of free space or growing in an unusual manner.

To start monitoring persistent volume claims, see below.

Permissions

Make sure that the get rule and the nodes/metrics resources are enabled in the Kubernetes ClusterRole. If you're monitoring PVCs with an ActiveGate running outside of the cluster, you'll also need the nodes/proxy permission.

Example:

Enable monitoring

To enable PVC monitoring

1. In the Dynatrace menu, go to Kubernetes and select your Kubernetes cluster.
2. Select More (…) and go to Settings.
3. Enable Monitor persistent volume claims.
4. Select Test connection to verify your connection. If connection to the API is successful, you should get this message: Successfully connected to Kubernetes API.
5. Select Save changes.

Activate dashboard and alerts

To add a dedicated dashboard for PVC monitoring and configure the preset PVC alerts

1. In the Dynatrace menu, go to Dynatrace Hub.
2. Find and select the Kubernetes persistent volume claims extension.
3. Follow the setup instructions in the extension tile.

Example dashboard:

Limitations

This feature is available only if your Kubernetes cluster is connected to a local Kubernetes API endpoint.