gistfile1.pp

class config::sysctl::hugepages{

    $memory = hiera_hash('memory')
    $required_memory_keys = [
        'reserved',
        'huge_pagesize'
    ]
    validate_hash_content($memory, $required_memory_keys)

    $nr_hugepages = ( $memorysize_raw - $memory['reserved'] ) / $memory['huge_pagesize']

    sysctl{
        'vm.nr_hugepages':
            ensure    => present,
            permanent => yes,
            value     => $nr_hugepages,
    }

}