Verify that the RotateKubeletServerCertificate argument is set to true

MediumLevel 2Manual reviewopenshift

Description

Enable kubelet server certificate rotation. The benchmark marks this recommendation Manual.

How it is checked

Audit method: Manual review

This recommendation cannot be checked automatically. A scan lists it with these instructions when you pass --include-manual.

Run the following command to check if the RotateKubeletServerCertificate feature gate is enabled on each node: for node in $(oc get nodes -ojsonpath='{.items[*].metadata.name}'); do oc get --raw /api/v1/nodes/$node/proxy/configz | jq '.kubeletconfig.featureGates.RotateKubeletServerCertificate' done Verify that all nodes return true. Run the following command to check that each node is configured to rotate certificates: for node in $(oc get nodes -ojsonpath='{.items[*].metadata.name}').

How it is fixed

Fix method: Guidance or infrastructure patch

Set the RotateKubeletServerCertificate argument to true.

Properties

Operating systems: Any
Tags: openshiftworker-nodekubelet
Reference: CIS Red Hat OpenShift Container Platform Benchmark v2.0.0 - 4.2.11 Verify that the RotateKubeletServerCertificate argument is set to true