apply Service "OS Update" {
    import "generic-service"
    check_command = "nrpe-check-1arg"
    vars.host = "$host.address$"
    vars.check = "check_os_update"
    max_check_attempts = 5
    check_interval = 30m
    retry_interval = 10m


    assign where host.address && ( host.vars.os == "CentOS7" )
    ignore where host.name == "einzelner Rechner"
}