Chapter 6. Checking audit logs

Procedure

1. Retrieve the node name by running the following command:

   $ NODE_NAME=$(oc get node -ojsonpath='{.items[0].metadata.name}')

2. View the available audit logs by running the following command:

   $ oc adm node-logs ${NODE_NAME} --path=kube-apiserver/

   Example output

   rhel-94.lab.local audit-2024-10-18T18-25-41.663.log
   rhel-94.lab.local audit-2024-10-19T11-21-29.225.log
   rhel-94.lab.local audit-2024-10-20T04-16-09.622.log
   rhel-94.lab.local audit-2024-10-20T21-11-41.163.log
   rhel-94.lab.local audit-2024-10-21T14-06-10.402.log
   rhel-94.lab.local audit-2024-10-22T06-35-10.392.log
   rhel-94.lab.local audit-2024-10-22T23-26-27.667.log
   rhel-94.lab.local audit-2024-10-23T16-52-15.456.log
   rhel-94.lab.local audit-2024-10-24T07-31-55.238.log

3. Parse the audit logs to find pod security violations by running the following command:

   $ oc adm node-logs ${NODE_NAME} --path=kube-apiserver/audit.log \
     | jq -r 'select((.annotations["pod-security.kubernetes.io/audit-violations"] != null) and (.objectRef.resource=="pods")) | .objectRef.namespace + " " + .objectRef.name + " " + .objectRef.resource' \
     | sort | uniq -c