Connect 2 elixir nodes using slptool

slp_connect.ex

# Node 1
{ :ok, [ { ip_oct = { 192, x, y, z }, _, _ } | tail ]} = :inet.getif()
ip_addr = ip_oct |> Tuple.to_list |> List.join "."
{ "", 0 } = System.cmd("slptool", ["register", "service:my.service://#{ip_addr}"])
case System.cmd("slptool", ["unicastfindsrvs", ip_addr, "service:my.service"]) do
  { "", 0 } -> # consider slpd restart + re-register
  { my_address, 0 } -> # all good
  { error, err_code } -> # handle error
end
# Node 2
System.cmd("slptool", [ "findsrvs", "my.service" ]) |> elem(0)
  |> String.strip
  |> String.replace(~r/^service\:(.+?)\,(\d+)$/, "\\1")
  |> URI.parse
  |> Map.get(:host)
  |> String.replace(~r/^(.+)/, "node@\\1")
  |> String.to_atom
  |> Node.connect