CIS-1.2.13 - Ensure that the admission control plugin ServiceAccount is set

Ensure that the admission control plugin ServiceAccount is set

Framework

CIS

Severity

Low

Description of the the issue

When you create a pod, if you do not specify a service account, it is automatically assigned the default service account in the same namespace. You should create your own service account and let the API server manage its security tokens.

Related resources

Pod

What does this control test

Automate service accounts management.

How to check it manually

Run the following command on the Control Plane node:

ps -ef | grep kube-apiserver

Verify that the --disable-admission-plugins argument is set to a value that does not includes ServiceAccount.

Remediation

Follow the documentation and create ServiceAccount objects as per your environment. Then, edit the API server pod specification file /etc/kubernetes/manifests/kube-apiserver.yaml on the master node and ensure that the --disable-admission-plugins parameter is set to a value that does not include ServiceAccount.

Impact Statement

None.

Default Value

By default, ServiceAccount is set.

Example

No example