Is live (code) reloading works in production

mogadget · March 6, 2018, 11:51am

I have an app that generates code and save it as .exs file. This works in a dev environment but Im not sure how it behaves in production. Is it possible to retain live reload in prod where generated/updated .exs files are loaded in dynamic function?

Thanks

hlx · March 6, 2018, 4:22pm

Not really sure if it fits your use-case but you might take a look at how Discord is doing it with FastGlobal

github.com

discordapp/fastglobal/blob/master/lib/fastglobal.ex

defmodule FastGlobal do
  @moduledoc """
  Abuse module constant pools as a "read-only shared heap" (since erts 5.6)
  http://www.erlang.org/pipermail/erlang-questions/2009-March/042503.html
  """

  @type t :: {__MODULE__, atom}

  @doc """
  Create a module for the FastGlobal instance.
  """
  @spec new(atom) :: {__MODULE__, atom}
  def new(key) do
    {__MODULE__, key_to_module(key)}
  end

  @doc """
  Get the value for `key` or return nil.
  """
  @spec get(atom) :: any | nil

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