Agenix: error: attribute 'restic_b2_awscredentials' missing

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1

I want to setup restic and using agenix to use secrets. This is my agenix config

let
  papanito = "ssh-rsa AAAA...;
  users = [ papanito ];
in
{
  "restic_password.age".publicKeys = [ papanito ];
  "restic_b2_awscredentials.age".publicKeys = [ papanito ];

}

And this is my restic config, which uses agenix for restic_password and restic_b2_awscredentials

{ config, pkgs, ... }:

{
  environment.systemPackages = with pkgs; [
    restic
    autorestic
  ];

  services.restic.backups.b2 = {
    initialize = true;
    passwordFile = config.age.secrets.restic_password.path;
    paths = ["/home/papanito"];
    repository = "b2:my-repo";
    timerConfig = {
      OnUnitActiveSec = "1d";
    };

    pruneOpts = [
      "--keep-daily 7"
      "--keep-weekly 5"
      "--keep-monthly 6"
      "--keep-yearly 10"
    ];
  };

  systemd.services.restic-backups-b2 = {
    environmentFile = {
      s3CredentialsFile = config.age.secrets.restic_b2_awscredentials.path;
    };
  };
}

nixos-rebuils fails with

error: attribute 'restic_b2_awscredentials' missing

       at /etc/nixos/services/restic.nix:112:27:

          111|     environmentFile = {
          112|       s3CredentialsFile = config.age.secrets.restic_b2_awscredentials.path;
             |                           ^
          113|     };

Any clue why? The necessary files are under /etc/nixos/secrets and it works at least for the restic_password.

2

Ok it seems I missed to define the files as follows

  age.secrets.restic_b2_credentials = {
    file = ./secrets/restic_b2_credentials.age;
  };

  age.secrets.restic_password = {
    file = ./secrets/restic_password.age;
  };