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zfs: better zfs-import@ integration
[julm/julm-nix.git] / nixos / profiles / system.nix
1 { config, pkgs, lib, inputs, ... }:
2 with lib;
3 {
4 boot.tmp.cleanOnBoot = mkDefault true;
5 boot.tmp.useTmpfs = mkDefault true;
6 services.logrotate.enable = true;
7 # NOTE: mostly useless on a server, and CPU intensive.
8 documentation = {
9 enable = mkDefault true;
10 dev.enable = mkDefault false;
11 doc.enable = mkDefault true;
12 info.enable = mkDefault false;
13 man.enable = mkDefault true;
14 nixos.enable = mkDefault false;
15 };
16 programs.vim.defaultEditor = mkDefault true;
17 environment.variables = {
18 EDITOR = "vim";
19 NIXPKGS_CONFIG = mkForce "";
20 PAGER = "less -R";
21 SYSTEMD_LESS = "FKMRX";
22 # Setting TZ= avoids a lot of useless syscalls reading /etc/localtime
23 # but requires to restart the session to change the time zone for all programs.
24 TZ = config.time.timeZone;
25 };
26 home-manager.users.root = {
27 imports = [
28 ../../home-manager/options.nix
29 ../../home-manager/profiles/essential.nix
30 ];
31 services.gpg-agent.pinentryFlavor = "curses";
32 };
33 nix = {
34 settings.auto-optimise-store = mkDefault true;
35 gc.automatic = mkDefault true;
36 gc.dates = mkDefault "weekly";
37 gc.options = mkDefault "--delete-older-than 7d";
38 nixPath = mkForce [ ];
39 registry.nixpkgs = mkDefault { flake = inputs.nixpkgs; };
40 package = pkgs.nixFlakes;
41 settings.experimental-features = [ "nix-command" "flakes" ];
42 };
43 security.lockKernelModules = false;
44 services.journald = {
45 extraConfig = ''
46 Compress=true
47 MaxRetentionSec=1month
48 Storage=persistent
49 SystemMaxUse=100M
50 '';
51 };
52 systemd.oomd = {
53 enable = mkDefault true;
54 enableRootSlice = mkDefault true;
55 enableSystemSlice = mkDefault true;
56 enableUserServices = mkDefault true;
57 };
58 systemd.services.openssh = {
59 serviceConfig = {
60 ManagedOOMPreference = "omit";
61 };
62 };
63 /*
64 system.nixos.versionSuffix = ".${
65 substring 0 8 (inputs.self.lastModifiedDate or inputs.self.lastModified)}.${
66 inputs.self.shortRev or "dirty"}";
67 system.nixos.revision = mkIf (inputs.self ? rev) inputs.self.rev;
68 */
69 # Let 'nixos-version --json' know about the Git revision of this flake.
70 system.configurationRevision = mkIf (inputs.self ? rev) inputs.self.rev;
71 /*
72 system.configurationRevision =
73 if inputs.self ? rev
74 then inputs.self.rev
75 else throw "Refusing to build from a dirty Git tree!";
76 */
77 users.mutableUsers = false;
78 }