nix/modules/nixos/nix/default.nix
2025-04-10 17:40:56 -04:00

103 lines
3.3 KiB
Nix

{ config, lib, pkgs, inputs, namespace, host, ... }:
let
inherit (lib) types mkIf;
inherit (lib.${namespace}) mkBoolOpt mkOpt;
cfg = config.${namespace}.nix;
in
{
options.${namespace}.nix = {
enable = mkBoolOpt true "Whether or not to manage nix configuration.";
package = mkOpt types.package pkgs.nixVersions.latest "Which nix package to use.";
};
config = mkIf cfg.enable {
nix =
let
mappedRegistry = lib.pipe inputs [
(lib.filterAttrs (_: lib.isType "flake"))
(lib.mapAttrs (_: flake: { inherit flake; }))
(x: x // {
nixpkgs.flake = if pkgs.stdenv.hostPlatform.isLinux then inputs.nixpkgs else inputs.nixpkgs-unstable;
})
(x: if pkgs.stdenv.hostPlatform.isDarwin then lib.removeAttrs x [ "nixpkgs-unstable" ] else x)
];
users = [
"root"
"@wheel"
"nix-builder"
"evanreichard"
];
in
{
inherit (cfg) package;
buildMachines = lib.optional (config.${namespace}.security.sops.enable && host != "nixos-builder") {
hostName = "10.0.50.130";
systems = [ "x86_64-linux" ];
sshUser = "evanreichard";
protocol = "ssh";
sshKey = config.sops.secrets.builder_ssh_key.path;
supportedFeatures = [
"benchmark"
"big-parallel"
"nixos-test"
"kvm"
];
};
checkConfig = true;
distributedBuilds = true;
optimise.automatic = true;
registry = mappedRegistry;
gc = {
automatic = true;
options = "--delete-older-than 7d";
};
settings = {
connect-timeout = 5;
allowed-users = users;
max-jobs = "auto";
auto-optimise-store = pkgs.stdenv.hostPlatform.isLinux;
builders-use-substitutes = true;
experimental-features = [
"nix-command"
"flakes "
];
flake-registry = "/etc/nix/registry.json";
http-connections = 50;
keep-derivations = true;
keep-going = true;
keep-outputs = true;
log-lines = 50;
sandbox = true;
trusted-users = users;
warn-dirty = false;
use-xdg-base-directories = true;
substituters = [
"https://anyrun.cachix.org"
"https://cache.nixos.org"
"https://hyprland.cachix.org"
"https://nix-community.cachix.org"
"https://nixpkgs-unfree.cachix.org"
"https://nixpkgs-wayland.cachix.org"
"https://numtide.cachix.org"
];
trusted-public-keys = [
"anyrun.cachix.org-1:pqBobmOjI7nKlsUMV25u9QHa9btJK65/C8vnO3p346s="
"cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
"hyprland.cachix.org-1:a7pgxzMz7+chwVL3/pzj6jIBMioiJM7ypFP8PwtkuGc="
"nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
"nixpkgs-unfree.cachix.org-1:hqvoInulhbV4nJ9yJOEr+4wxhDV4xq2d1DK7S6Nj6rs="
"nixpkgs-wayland.cachix.org-1:3lwxaILxMRkVhehr5StQprHdEo4IrE8sRho9R9HOLYA="
"numtide.cachix.org-1:2ps1kLBUWjxIneOy1Ik6cQjb41X0iXVXeHigGmycPPE="
];
};
};
};
}