ha-handler/lib/ha_handler.ex

defmodule HAHandler do
  @moduledoc false

  def http_port, do: Application.get_env(:ha_handler, :http_port)
  def haproxy_socket, do: Application.get_env(:ha_handler, :haproxy_socket)
  def acme_challenge_path, do: Application.get_env(:ha_handler, :acme_challenge_path)
end