Windows DNS registry entry generation

dns.pp

# Build a registry value string for setting DNS servers on windows

$dns_servers = [ '1.1.1.1', '2.2.2.2', '3.3.3.3' ]
$suffixes    = [ '0x09', '0x0a' ]

# Generate an array that has 0x09 after the first server, and
# 0x0a after all the other servers.
$array = $dns_servers.map |$index, $server| {
  if $index == 0 {
    "${server},${suffixes[0]}"
  } else {
    "${server},${suffixes[1]}"
  }
}

# Create a string from the array that is separated by spaces.
$full_string = join($array, ' ')

# Show the output
notice($full_string)