Cfengine bundle to extract VM from a FreeBSD host

detect_guest_freebsd.cf

bundle agent detect_guest_freebsd
{
    vars:

        freebsd::
        
            "fbsd_vm_guest" string => execresult("$(paths.path[sysctl]) -n kern.vm_guest", "noshell");

            "fbsd_known_guest_vms" data => '{
                "xen":     "xen_domu",
                "hv":      "hyper_v",
                "vmware":  "vmware",
                "generic": "generic_hypervisor"
            }';

            "fbsd_known_guest" slist => getindices("known_guest_vms");

    classes:

        freebsd::

            "found_vm_guest" expression => strcmp("$(fbsd_known_guest)", "$(fbsd_vm_guest)");

            "$(known_guest_vms[$(vm_guest)])" expression => "found_vm_guest",
                scope => "namespace";

    reports:

        found_vm_guest::

            "Host is Virtualized";

        xen_domu::

            "Running on Xen";
}