I’m deploying to flyio using the flyctl launch tool + my app runs locally.
I have a function that reads a file.

 def read_json(json_file) do
    json_file
    |> File.read!()
    |> Jason.decode!()
  end

It’s called like this (attempt to true relative path):
@json myApp.read_json("./alert_text.json")
or allow elixir to find it as usual:
@json myApp.read_json("alert_text.json")

The alert_text.json file is a root now, but I also tried moving it into the lib folder. No matter what, fly will not find it.

When I run the fly command I get ** (File.Error) could not read file "./alert_text.json": no such file or directory. I have no idea how to make fly find my file.

Is there some kind of function I can use to make it use absolute paths? I’d need to be environment agnostic to work on fly’s system and my local system.

Edit: just looked up Path module. Playing around with absname at the moment.