Secretfile

A small library for helping with loading secrets from files including systemd service credentials support.

Usage

Load a value from a file

fn main() -> Result<(), Box<dyn std::error::Error>> {
    let secret = secretfile::load("/path/to/supper/secret/file")?;
    println!("{secret}");
    Ok(())
}

If the provided path includes the $CREDENTIALS_DIRECTORY placeholder, it will be replaced with the systemd service credential directory. Any trailing whitespace will be stripped from the returned secret.

Why make this a library?

While the code is simple enough, I found myself copy-pasting it enough times that it seemed useful to put into a library.