Admission controller NamespaceLifecycle is enabled
Set up the kubernetes integration.
Description
Reject creating objects in a namespace that is undergoing termination.
Rationale
Setting admission control policy to NamespaceLifecycle ensures that objects cannot be created in non-existent namespaces, and that namespaces undergoing termination are not used for creating the new objects. This is recommended to enforce the integrity of the namespace termination process and also for the availability of the newer objects.
Audit
Run the following command on the master node:
ps -ef | grep kube-apiserver
Verify that the --disable-admission-plugins argument is set to a value that does not include NamespaceLifecycle.
Edit the API server pod specification file /etc/kubernetes/manifests/kube-apiserver.yaml on the master node and set the –disable-admission-plugins parameter to ensure it does not include NamespaceLifecycle.
Impact
None
Default value
By default, NamespaceLifecycle is set.
References
- https://kubernetes.io/docs/admin/kube-apiserver/ 2. https://kubernetes.io/docs/admin/admission-controllers/#namespacelifecycle
CIS controls
Version 6 14 Controlled Access Based on the Need to Know Controlled Access Based on the Need to Know Version 7 4 Controlled Use of Administrative Privileges Controlled Use of Administrative Privileges
