How to import a nixpkgs profile using NixOS configuration flake

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1

Hi!

I’m switching a nixos configuration.nix file to flakes to use deploy-rs, but I don’t know how to fix the headless.nix import from nixpkgs :confused: I’m looking for some hints. :slight_smile:

 imports =
   [
     ./hardware-configuration.nix
     <nixpkgs/nixos/modules/profiles/headless.nix>
   ];
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2

I guess you are looking for modulesPath: NixOS Search

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3

You’d use it like this: tlaternet-server/flake.nix at master - tlaternet-server - Gitea: Git with a cup of tea

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4

thanks! It’s working doing this way, I have to admit I wouldn’t have figured easily alone how to use modulesPath in a flake :frowning:

it’s a bit unfortunate I have to spread the config between configuration.nix and flake.nix

5

You don’t have to, actually. You can also just add modulesPath to your configuration.nix's args:

{pkgs, lib, config, options, modulesPath, ...}:

{
    imports = [ (modulesPath + "/profiles/headless.nix") ];
    <snip>
}

And then import and add it to the flake’s modules like any other module.

Then maybe read through _module.args again and see if it’s any easier to grok. Tip: it defines what args your modules are called with, and its help text describes the defaults.

I frankly don’t recall why I put this config in my flake, that repo is due a refactor :slight_smile:

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