gistfile1.txt

$swapfile_path          = '/mnt/swap.1'
$margin                 = '5MB'
$expected_swapfile_size = '200MB'

if ($::swapfile_sizes and is_hash($::swapfile_sizes)) {

    $margin_bytes                  = to_bytes($margin)
    $existing_swapfile_bytes       = to_bytes("${::swapfile_sizes[$swapfile_path]}kb")
    $expected_swapfile_size_bytes  = to_bytes($expected_swapfile_size)

    if has_key($::swapfile_sizes,$swapfile_path) {
      notify{'Swapfile already present! Checking size':}

      if ($expected_swapfile_size_bytes == $existing_swapfile_bytes) {
        notify{"Existing Swapfile does match size exactly!":}
      } else {
        notify{"Existing Swapfile does not match size exactly, checking against margin (${margin})":}
        notify{"Existing: $existing_swapfile_bytes":}
        notify{"Expected: $expected_swapfile_size_bytes":}
      }

    }
  }