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TMA-EKS-3.2.7

Ensure the kubelet client certificate rotation is enabled

YüksekDüzey 1Otomatikeks

Açıklama

In EKS, the setting rotateCertificates is about whether the kubelet renews its client certificate before that certificate expires. The EKS default is that certificate rotation is not enabled by default for self-managed EKS nodes, and AWS warns that a node running longer than one year can stop authenticating to the Kubernetes API if rotation stays disabled. Reads every node's effective kubelet configuration through the API server (kubectl get --raw /api/v1/nodes/<node>/proxy/configz); requires kubectl with nodes/proxy access.

Nasıl denetlenir

Denetim yöntemi: Kabuk komutu

shell
nodes=$(kubectl get nodes -o jsonpath='{range .items[*]}{.metadata.name}{"\n"}{end}') || exit 1
[ -n "$nodes" ] || exit 1
ok=1
for n in $nodes; do
  c=$(kubectl get --raw "/api/v1/nodes/$n/proxy/configz") || exit 1
  if ! { printf '%s' "$c" | grep -Eq '"rotateCertificates":true'; }; then echo "noncompliant: $n"; ok=0; fi
done
if [ "$ok" -eq 1 ]; then echo compliant; fi
Beklenen çıktı
compliant

Nasıl düzeltilir

Düzeltme yöntemi: Kılavuz veya altyapı yaması

If the audit returns false, the worker node is not configured to rotate its kubelet client certificate and should be treated as noncompliant. If the field is not present, interpret that conservatively as rotation not enabled unless your EKS platform explicitly manages certificate rotation for you. AWS’s self-managed EKS node guidance states that kubelet certificates have a one-year expiration, that certificate rotation is not enabled by default, and that nodes can lose the ability to authenticate to the Kubernetes API if they remain in service beyond that period without renewal. Kubernetes also defines rotateCertificates as the kubelet setting that enables client certificate rotation and gives it a default of false.

Özellikler

İşletim sistemleri
Herhangi biri
Etiketler
eksworker-nodekubelet
Referans
CIS Amazon Elastic Kubernetes Service (EKS) Benchmark v2.0.0 - 3.2.7 Ensure the kubelet client certificate rotation is enabled

Bu ana makineyi denetle

Bunu denetleme izniniz olan bir makinede çalıştırın. Tarama salt okunurdur.

shell
tmaegis scan --target eks