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Weitere Regeln für eks

Amazon EKS

TMA-EKS-4.5.2

The default namespace should not be used

NiedrigStufe 1Automatisierteks

Beschreibung

Avoid placing application workloads in the default namespace, and instead deploy them into dedicated namespaces that reflect the intended team, application, or environment boundary. In EKS, namespaces are the primary logical partition for organizing workloads and supporting soft multi-tenancy in a shared cluster. Requires kubectl read access; fails when the default namespace holds objects other than the kubernetes Service, kube-root-ca.crt ConfigMap and default ServiceAccount.

So wird geprüft

Prüfmethode: Shell-Befehl

shell
out=$(kubectl get pods,services,configmaps,secrets,serviceaccounts,deployments,statefulsets,daemonsets,jobs,cronjobs,ingresses,roles,rolebindings -n default -o name) || exit 1
bad=$(printf '%s\n' "$out" | grep -v '^$' | sed 's#^\([a-z]*\)\.[^/]*/#\1/#' | grep -Evx 'service/kubernetes|configmap/kube-root-ca\.crt|serviceaccount/default')
if [ -z "$bad" ]; then echo compliant; else printf '%s\n' "$bad" | head -n 25; fi
Erwartete Ausgabe
compliant

So wird behoben

Behebungsmethode: Anleitung oder Infrastruktur-Patch

Move user workloads out of the default namespace and place them in dedicated namespaces that reflect the intended team, application, or environment boundary. In EKS, namespaces are the core logical partition for soft multi-tenancy, but they only become meaningful administrative boundaries when they are paired with namespace-scoped access, service accounts, quotas, limits, and network policies. Because namespaced objects are created in default when no namespace is specified, remediation should address both existing workloads and the deployment process that created them there. • Create dedicated namespaces for each team, application, or environment that needs its own administrative scope, then redeploy or migrate user workloads from default into those namespaces.

Eigenschaften

Betriebssysteme
Beliebig
Tags
ekspolicies
Referenz
CIS Amazon Elastic Kubernetes Service (EKS) Benchmark v2.0.0 - 4.5.2 The default namespace should not be used

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shell
tmaegis scan --target eks