TMAegis
Weitere Regeln für aks

TMA-AKS-5.4.2

Use private AKS clusters and disable public control plane DNS

HochStufe 2Automatisiertaks

Beschreibung

Provisioning AKS in private cluster mode limits control plane exposure by placing the Kubernetes API server on private addressing and requiring connectivity through Azure Private Link and a private endpoint rather than broad public network access. Requires the az CLI (logged in) with read access to the cluster named by AKS_RG and AKS_NAME. Requires enablePrivateCluster true and enablePublicFqdn false.

So wird geprüft

Prüfmethode: Shell-Befehl

shell
out=$(az aks show --resource-group "${AKS_RG:?set AKS_RG}" --name "${AKS_NAME:?set AKS_NAME}" --query '[apiServerAccessProfile.enablePrivateCluster, apiServerAccessProfile.enablePublicFqdn]' -o tsv) || exit 1
set -- $(printf '%s\n' "$out" | tr 'A-Z' 'a-z')
if [ "${1:-}" = true ] && [ "${2:-}" = false ]; then echo compliant; else echo "noncompliant: enablePrivateCluster=${1:-} enablePublicFqdn=${2:-}"; fi
Erwartete Ausgabe
compliant

So wird behoben

Behebungsmethode: Anleitung oder Infrastruktur-Patch

Use the apiServerAccessProfile results to determine whether the cluster must be moved to private cluster mode and whether the public FQDN must be disabled. Remediation should bring the cluster to enablePrivateCluster: true and, where required by policy, enablePublicFqdn: false; the detailed action depends on whether the cluster is new or existing and whether API Server VNet Integration is already in place. 1. If enablePrivateCluster is false on a new deployment, create the cluster as private by using az aks create --enable-private-cluster add --disable-public-fqdn when the requirement is to prevent publication of a public DNS name for the API server. 2. If enablePrivateCluster is false on an existing cluster, first determine whether the cluster already uses API Server VNet Integration.

Eigenschaften

Betriebssysteme
Beliebig
Tags
aksmanaged-servicesnetwork
Referenz
CIS Azure Kubernetes Service (AKS) Benchmark v2.0.0 - 5.4.2 Use private AKS clusters and disable public control plane DNS

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shell
tmaegis scan --target aks --level 2