When I do enable documentation.nixos.includeAllModules with agenix I get:

┃        error: attribute 'users' missing
┃ 
┃        at /nix/store/nwlhw7kzyyryssszhvw2as3gq4ncc1ai-source/modules/age.nix:15:11:
┃ 
┃            14|
┃            15|   users = config.users.users;
┃              |           ^
┃            16|

Hi, I'm trying to add agenix to my newish flakes nixos config and I created the secrets.nix and all the age files and added a reference to a secret as directed in the docs and I now get the following error:

warning: Git tree '/etc/nixos' is dirty
building the system configuration...
warning: Git tree '/etc/nixos' is dirty
error:
       Failed assertions:
       - age.identityPaths must be set.
(use '--show-trace' to show detailed location information)

If this helps, here's my flakes.nix:

  description = "my config";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.05";
    home-manager = {
      url = "github:nix-community/home-manager/release-23.05";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    agenix = {
      url = "github:ryantm/agenix";
      inputs.nixpkgs.follows = "nixpkgs";
      inputs.darwin.follows = "";
    };
  };

  outputs = { self, nixpkgs, home-manager, agenix, ... }: 
    let 
        system = "x86_64-linux";
        agenixModule = { environment.systemPackages = [ agenix.packages.${system}.default nixpkgs.age-plugin-yubikey ]; };
    in {
      nixosConfigurations = {
        "theseus" = nixpkgs.lib.nixosSystem { inherit system; modules = [ ./machines/theseus.nix  agenix.nixosModules.default  agenixModule ]; };
      };
    };
}

If this helps, here's my flakes.nix:

  description = "my config";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-23.05";
    home-manager = {
      url = "github:nix-community/home-manager/release-23.05";
      inputs.nixpkgs.follows = "nixpkgs";
    };
    agenix = {
      url = "github:ryantm/agenix";
      inputs.nixpkgs.follows = "nixpkgs";
      inputs.darwin.follows = "";
    };
  };

  outputs = { self, nixpkgs, home-manager, agenix, ... }: 
    let 
        system = "x86_64-linux";
        agenixModule = { environment.systemPackages = [ agenix.packages.${system}.default ]; };
    in {
      nixosConfigurations = {
        "theseus" = nixpkgs.lib.nixosSystem { inherit system; modules = [ ./machines/theseus.nix  agenix.nixosModules.default  agenixModule ]; };
      };
    };
}

In reply to @ryantm:matrix.org
metasyntactical: probably what is happening is you haven't specified how to decrypt the secrets, and you have also not turned on openssh on the computer to make use of the system SSH keys for decryption.

I have a ./secrets/secrets.nix file with:

let
    connelly_headless = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIMV3hxhcKHYCmTpl5wRMfibT4wgWKAuLE7nWvDbIoswg";

    theseus_host = "ssh-ed25519 AAAAC3Nza...(redacted)";
    fw_host = "ssh-ed25519 AAAAC3Nza...(redacted)";
    house_host = "ssh-ed25519 AAAAC3Nza...(redacted)";
    void_host = "ssh-ed25519 AAAAC3Nza...(redacted)";

    theseus = [ connelly_headless theseus_host ];
    fw = [ connelly_headless fw_host ];
    house = [ connelly_headless house_host ];
    void = [ connelly_headless void_host ];
    all = [ connelly_headless theseus_host fw_host void_host house_host ];
in {
    "restic-s3.age".publicKeys = all;
    "restic-theseus.age".publicKeys = theseus;
    "restic-fw.age".publicKeys = fw;
    "restic-house.age".publicKeys = house;
    "restic-void.age".publicKeys = void;
    "ssh-theseus-headless-priv.age".publicKeys = theseus;
   }

In reply to @ryantm:matrix.org
metasyntactical: do you have config.services.openssh.enable = true in your config?

okay. so in ./machines/theseus.nix I add the line below

age.secrets.wg-theseus-home-privkey.file = ./secrets/wg-theseus-home-privkey.age;

and I get the error:

error:
       Failed assertions:
       - age.identityPaths must be set.
(use '--show-trace' to show detailed location information)

ssh_config  ssh_host_ed25519_key  ssh_host_ed25519_key.pub  ssh_host_rsa_key  ssh_host_rsa_key.pub  ssh_known_hosts