Profile applicability: Level 1 - Master Node
Rotate log files on reaching 100 MB or as appropriate.
Kubernetes automatically rotates the log files. Retaining old log files ensures that
you would
have sufficient log data available for carrying out any investigation or correlation.
If you have
set file size of 100 MB and the number of old log files to keep as 10, you would approximate
have
1 GB of log data that you could potentially use for your analysis.
NoteBy default, auditing is not enabled.
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Audit
Run the following command on the Control Plane node:
ps -ef | grep kube-apiserver
Verify that the
--audit-log-maxsize
argument is set to 100 or as
appropriate.Remediation
Edit the API server pod specification file
/etc/kubernetes/manifests/kube-apiserver.yaml
on the Control Plane node and
set the --audit-log-maxsize
parameter to an appropriate size in MB. For
example, to set it as 100 MB:--audit-log-maxsize=100