Where is the server’s priv folder on Fly? I’m having trouble finding a file that I hope is being copied correctly during deployment.

For more context, for Metamorphic’s passphrase generator it uses the eff_large_wordlist.txt and subsequent strategy.

The GenServer for this is started in the Application:

...
# Start the word retrieval GenServer API for password generator.
{Metamorphic.Extensions.PasswordGenerator.WordRepository, %{}},
...

Then, there’s a WordLoader file that calls:

# I've also used Application.app_dir(@otp_app, "/priv/dict/eff_large_wordlist.txt") 
# with success locally.
@word_list_contents File.stream!(
  Path.join(:code.priv_dir(@otp_app), "/dict/eff_large_wordlist.txt")
)

This worked great in deployment with Render and locally. When deploying to Fly I run into the enoent error and that it was looking for the file at /app/_build/prod/lib/<@otp_app>/priv/dict/eff_large_wordlist.txt.

In the Docker file it runs the command COPY priv priv.

My local file structure root priv directory looks like /home/user/github/name/priv.

I’m not super familiar with Docker, but my understanding is that COPY priv priv is copying all the files in my priv folder over to a priv folder for the server on Fly. Is it copying the folder structure? I’ve used both Application.app_dir/2 and :code.priv_dir/1 and both work except for deployment to Fly (which my thinking is because I’m either not copying the file over and/or not finding it correctly).

Thanks for any help