configuration.nix

# This is your system's configuration file.
# Use this to configure your system environment (it replaces /etc/nixos/configuration.nix)
{
  inputs,
  lib,
  config,
  pkgs,
  ...
}: {
  imports = [
    # You can also split up your configuration and import pieces of it here:
    # ./users.nix
  ];

  nixpkgs = {
    overlays = [    ];
    # Configure your nixpkgs instance
    config = {
      # Disable if you don't want unfree packages
      allowUnfree = true;
    };
  };

  nix = let
    flakeInputs = lib.filterAttrs (_: lib.isType "flake") inputs;
  in {
    settings = {
      # Enable flakes and new 'nix' command
      experimental-features = "nix-command flakes";
      # Opinionated: disable global registry
      flake-registry = "";
      # Workaround for https://github.com/NixOS/nix/issues/9574
      nix-path = config.nix.nixPath;
    };
    # Opinionated: disable channels
    channel.enable = false;

    # Opinionated: make flake registry and nix path match flake inputs
    registry = lib.mapAttrs (_: flake: {inherit flake;}) flakeInputs;
    nixPath = lib.mapAttrsToList (n: _: "${n}=flake:${n}") flakeInputs;
  };

  # FIXME: Add the rest of your current configuration

  # TODO: Configure your system-wide user settings (groups, etc), add more users as needed.
  users.users = {
    # FIXME: Replace with your username
    root = {
      # TODO: You can set an initial password for your user.
      # If you do, you can skip setting a root password by passing '--no-root-passwd' to nixos-install.
      # Be sure to change it (using passwd) after rebooting!
      initialPassword = "123";
      isNormalUser = true;
      # TODO: Be sure to add any other groups you need (such as networkmanager, audio, docker, etc)
      extraGroups = ["wheel"];
    };
  };

  # https://nixos.wiki/wiki/FAQ/When_do_I_update_stateVersion
  system.stateVersion = "23.05";
}

error.log

23.04 Activating writeBoundary
23.05 Creating new profile generation
23.10 Activating installPackages
23.14 installing 'home-manager-path'
23.15 building '/nix/store/w0y8pcjg8s11h98fibdiqvcl74l1mbks-user-environment.drv'...
23.26 error: Unable to build profile. There is a conflict for the following files:
23.26 
23.26          /nix/store/6y6ijw6avikf17cyks2k07vc9q1wq31v-man-db-2.13.0/etc/man_db.conf
23.26          /nix/store/qrjriw7d294yg3fkwrbq19l7ijrzb8pr-home-manager-path/etc/man_db.conf
23.28 error: builder for '/nix/store/w0y8pcjg8s11h98fibdiqvcl74l1mbks-user-environment.drv' failed with exit code 1
23.29 
23.29 Oops, Nix failed to install your new Home Manager profile!
23.29 
23.29 Perhaps there is a conflict with a package that was installed using
23.29 "nix-env -i"? Try running
23.29 
23.29     nix-env -q
23.29 
23.29 and if there is a conflicting package you can remove it with
23.29 
23.29     nix-env -e {package name}
23.29 
23.29 Then try activating your Home Manager configuration again.
------
nix.Dockerfile:28
--------------------
  26 |     # home.nix and pure-local.nix are expected to be in the current WORKDIR.
  27 |     # The pure-local.nix uses `src = ../.` which correctly points to `/pure-dev/`.
  28 | >>> RUN home-manager switch -f ./home.nix --show-trace
  29 |     
  30 |     # Set the working directory to the root of the pure project for running tests
--------------------
ERROR: failed to solve: process "/bin/sh -c home-manager switch -f ./home.nix --show-trace" did not complete successfully: exit code: 1
make: *** [makefile:65: build-pure-on-nix] Error 1

home.nix

# This is your home-manager configuration file
# Use this to configure your home environment (it replaces ~/.config/nixpkgs/home.nix)
{ inputs, lib, config, pkgs, ... }: {
  imports = [ ];

  nixpkgs = {
    # Configure your nixpkgs instance
    config = { };
  };

  # TODO: Set your username
  home = {
    username = "root";
    homeDirectory = "/root";
  };

  # Add stuff for your user as you see fit:
  # programs.neovim.enable = true;

  # Enable home-manager and git
  programs.home-manager.enable = true;
  programs.git.enable = true;
  programs.fish.enable = true;
  home.packages = with pkgs; [ fishPlugins.fishtape_3 ];
  
  # Nicely reload system units when changing configs
  systemd.user.startServices = "sd-switch";
  home.stateVersion = "23.05";
}

nix.Dockerfile

# Use a base Nix image
FROM nixos/nix:latest

# Set environment variables for Nix and locale
ENV LANG=C.UTF-8 \
    LC_ALL=C.UTF-8
ENV NIX_CONFIG="experimental-features = nix-command flakes"

# Install base dependencies as root using nix-env
# These are needed for setting up the user environment and Home Manager
RUN nix-env -iA \
    nixpkgs.nix \
    nixpkgs.git \
    nixpkgs.fish \
    nixpkgs.home-manager 
    
# Copy the entire 'pure' project source code into the user's home directory
# This makes relative paths in Nix files (like src = ../.;) work correctly.
# The source code will be at /home/nemo/pure_project
COPY ../. /pure-dev

# Set the working directory to where the Nix configuration files will be referenced
WORKDIR /pure-dev/docker

# Apply the Home Manager configuration.
# home.nix and pure-local.nix are expected to be in the current WORKDIR.
# The pure-local.nix uses `src = ../.` which correctly points to `/pure-dev/`.
RUN home-manager switch -f ./home.nix --show-trace

# Set the working directory to the root of the pure project for running tests
WORKDIR /pure-dev/

# Default command to run when the container starts: execute fishtape tests.
# Assumes your tests are in the 'tests' directory at the root of your 'pure' project.
CMD ["fish", "-c", "fishtape tests/*.test.fish"]