Ensure KSM is disabled

NiskaNivo 2Automatskaopenshift-virt

Opis

Kernel Samepage Merging (KSM) is a Linux kernel feature that merges identical memory pages across virtual machines running on a single host, potentially reducing memory usage and improving system performance. Audit: Passes when .spec.ksmConfiguration of the HyperConverged resource is unset or false (KSM is disabled by default); any KSM node selector configuration fails. Requires oc logged in to the cluster with read access.

Kako se proverava

Metod provere: Komanda ljuske

shell

command -v oc >/dev/null 2>&1 || exit 1; v=$(oc get hyperconvergeds kubevirt-hyperconverged -n openshift-cnv -o jsonpath='{.spec.ksmConfiguration}') || exit 1; case "$v" in ""|false|null|"{}") echo compliant;; *) echo noncompliant;; esac

Očekivani izlaz: compliant

Kako se ispravlja

Metod ispravke: Smernica ili zakrpa infrastrukture

Disable the KSM feature.For example, by directly editing the object with oc edit hyperconverged kubevirt-hyperconverged -n openshift-cnv and set the field to false

Svojstva

Operativni sistemi: Bilo koji
Oznake: openshift-virtmemoryksm
Referenca: CIS Red Hat OpenShift Virtual Machine Extension Benchmark v1.0.0 - 1.7 Ensure KSM is disabled

Proverite ovaj računar

Pokrenite ovo na računaru za koji imate dozvolu za proveru. Skeniranje radi u režimu samo za čitanje.

shell

tmaegis scan --target openshift-virt --level 2