check libvirt

    Usage:

    install virsh on icinga/nagios host

    check the nagios user can connect to remote libvirt machine
     ex. sudo nagios virsh -c qemu+ssh://user@remote.libvirt.machine/system --readonly list

    If all looks good put the command into your icinga/nagios

    check_libvirt -H libvirt-host -m mode -u user <-t type -w warning -c critical>

    -H (libvirt host)
        The remote libvirt host
        !!! mandatory argument !!!

    -u (username)
        Username to connect to hypervisor
        !!! mandatory argument !!!

    -t (connection type)
        currently only qemu+ssh supported, this is default  
    -m (mode):
        vm_status
            check virtual machines status (running,paused etc...)
            returns WARNING when one ore more VM powerwed off or paused
            returns CRITICAL when one or more VM crashed

        pool_status
            check definied storage pools
            returns warning when inactive pool founded

        pool_usage
            check all active pool usage
    -w (warning)
        Warning threshonld in percentage
        Default: 80%

    -c (critital)
        Critical threshold in percentage
        Default: 95%

    You can donate the plugin via PayPal (csehvendel@gmail.com)