Enable the GKE security posture dashboard for cluster security insights

How it is checked

Audit method: Shell command

v=$(gcloud container clusters describe "${GKE_CLUSTER:?set GKE_CLUSTER}" --location "${GKE_LOCATION:?set GKE_LOCATION}" ${GKE_PROJECT:+--project=$GKE_PROJECT} --format='value(securityPostureConfig.mode)') || exit 1
if case "$v" in BASIC|ENTERPRISE) true;; *) false;; esac; then echo compliant; else echo "noncompliant: securityPostureConfig.mode=$v"; fi

Expected output

compliant

How it is fixed

Fix method: Guidance or infrastructure patch

Enable the GKE security posture dashboard for workload configuration auditing when the audit shows that securityPostureConfig.mode is not BASIC. GKE supports enabling configuration auditing on existing clusters by setting the security posture mode to standard, which maps to BASIC in the cluster configuration. gcloud container clusters update $CLUSTER_NAME \ --location $LOCATION \ --project $PROJECT_ID \ --security-posture=standard For new clusters, include --security-posture=standard during cluster creation when this setting must be explicitly enforced. Rerun the audit command and confirm that securityPostureConfig.mode returns BASIC. Initial configuration audit results can take several minutes to appear in the security posture dashboard and related logs.

Check this host

Run this on a machine you are allowed to audit. The scan is read-only.

tmaegis scan --target gke --level 2