When a NUMAResourcesOperator resource is created, a MachineConfig named 51-numaresources-<mcp name> is created by the operator. This MC adds an SELinux module to the nodes, via a file and a systemd resource.

If the NUMAResourcesOperator resource is removed, the file and systemd resources are removed, but the SELinux module will stay in the active configuration.

Seen with Openshift 4.14.26 and NUMA Resources Operator 4.14.5

Always

    1. Deploy NUMA Resources Operator and create a NUMAResourcesOperator resource
    2. Once the environment is stable, delete the NUMAResourcesOperator resource     
    3. On one of the nodes included in the resource, run "semodule -l | grep rte"    

rte SELinux module remains active.

The rte SELinux module should be removed.

This will not be seen often in production, but it may impact test environments or initial deployments, if the NUMAResourcesOperator resource is modified or removed as part of a troubleshooting exercise.