Verify that the RotateKubeletServerCertificate argument is set to true (Kubelet) (Openshift)

Risk Level: Informational
Cloud Entity: Node
CloudGuard Rule ID: D9.K8S.CRY.43
Covered by Spectral: No
Category: Compute

GSL LOGIC

KubernetesNode should have kubeletData.kubeletconfig.featureGates.RotateKubeletServerCertificate= 'true'

REMEDIATION

None required.

References

1. https://github.com/openshift/machine-config-operator/blob/release-4.5/templates/master/01-master-kubelet/_base/files/kubelet.yaml
2. https://github.com/openshift/machine-config-operator/blob/release-4.5/templates/worker/01-worker-kubelet/_base/files/kubelet.yaml
3. https://github.com/kubernetes/kubernetes/pull/45059
4. https://kubernetes.io/docs/reference/command-line-tools-reference/kubelet-tls-bootstrapping/#kubelet-configuration

Node

A node is a worker machine in Kubernetes, previously known as a minion. A node may be a VM or physical machine, depending on the cluster. Each node contains the services necessary to run pods and is managed by the master components. The services on a node include the container runtime, kubelet and kube-proxy.

Compliance Frameworks

• CIS Amazon Elastic Kubernetes Service (EKS) Benchmark v1.2.0
• CIS Kubernetes Benchmark v1.20
• CIS Kubernetes Benchmark v1.24
• CIS Kubernetes Benchmark v1.6.1
• CIS OpenShift Container Platform v4 Benchmark v1.1.0
• CIS OpenShift Container Platform v4 Benchmark v1.4.0
• OpenShift Container Platform v3