Health Check Commands: Kubeflow Admission Webhook

The Admission Webhook is built with the controller runtime and mutates Pods in the following ways:

• Set CPU and Memory requirements 1m.
• Set the ImagePullPolicy to PullNever if the image is in the provided image list
• Add a startup lock Init Container to solve the thundering herd issue.

Please refer to the following commands to perform a health check or investigation into the Kubeflow Admission Webhook.

1. Check the status of the Admission Webhook Deployment:

$ kubectl get deployment -n kubeflow admission-webhook-deployment -o wide

2. Inspect the events on the Admission Webhook Deployment:

$ kubectl describe deployment -n kubeflow admission-webhook-deployment

3. Check the status of the Admission Webhook Pod:

$ kubectl get pods -n kubeflow -l app.kubernetes.io/name=poddefaults -o wide

4. View Admission Webhook logs:

$ kubectl logs -n kubeflow deploy/admission-webhook-deployment -f

Useful links

1. Admission Webhook GitHub