Skip to main content

Application Metrics Forwarding

Forwarding metrics and logs from your CKS clusters

CoreWeave supports forwarding telemetry data from CKS clusters to external systems. Compared to direct querying, telemetry forwarding provides a more efficient and reliable method to export metrics and logs for storage, monitoring, and analysis purposes.

Forwarding metrics​

All CKS clusters come with Prometheus Operator pre-installed. Using Prometheus Operator, you can deploy Prometheus Agent inside a CKS cluster, and configure it to use remote write for writing to an external system.

Prerequisites​

To forward metrics to an external system, you will need:

  • kubectl installed and configured to your target CKS cluster
  • The address and credentials for the external system for which to use remote write
Warning

Always provide credentials as Secrets. To do this, you will first need to create the appropriate Secrets objects in your namespace. Never include credentials as plaintext in your YAML file.

Choosing a namespace​

You may deploy Prometheus Agent to an existing namespace, or create a new namespace with kubectl.

If desired, create a new namespace with the following command, replacing my-remote-write-namespace with your chosen namespace:

Example
$
kubectl create namespace my-remote-write-namespace

Deploying Prometheus Agent​

Info

CKS Clusters deployed before July 7, 2025 have Prometheus Operator pre-installed.

CKS clusters deployed after July 7, 2025 do not have Prometheus Operator pre-installed. Clusters deployed after this date must install Prometheus Operator before proceeding with the steps below.

Prometheus Operator allows you to deploy Prometheus Agent as follows:

First, prepare a Prometheus Agent CustomResource YAML file with the appropriate configuration for your remote-write destination, as in the following example:

sample-prometheus-agent.yaml
apiVersion: monitoring.coreos.com/v1alpha1

kind: PrometheusAgent

metadata:

  name: my-prom-agent

  namespace: my-remote-write-namespace

spec:

  remoteWrite:

    - url: ...

      ...
Note

For more details on specifying the remoteWrite configuration(s), see Prometheus Operator's API reference.

Next, use kubectl to deploy the Prometheus Agent to your CKS cluster with the following command, replacing sample-prometheus-agent.yaml with the appropriate filename:

Example
$
kubectl apply -f sample-prometheus-agent.yaml

Metrics generated within your CKS cluster will now remote-write to your specified destination.

Other telemetry forwarding​

To forward other kinds of metrics, see Introduction to CoreWeave Telecaster™.

Last updated on