nixos/defaults.nix

   1 { pkgs, lib, config, ... }:
   2 let inherit (lib) types;
   3 in
   4 {
   5 imports = [
   6   ./modules.nix
   7   ./defaults/predictable-interface-names.nix
   8 ];
   9 config = {
  10   nix = {
  11     autoOptimiseStore = true;
  12     extraOptions = ''
  13     '';
  14     # Use gc.automatic to keep disk space under control.
  15     gc = {
  16       automatic = true;
  17       dates = "weekly";
  18       options = "--delete-older-than 30d";
  19     };
  20   };
  21
  22   nixpkgs = {
  23     config = {
  24       allowUnfree = false;
  25       /*
  26       packageOverrides = pkgs: {
  27         postfix = pkgs.postfix.override {
  28           withLDAP = true;
  29         };
  30       };
  31       */
  32     };
  33     #overlays = import ../overlays.nix;
  34   };
  35
  36   documentation.nixos = {
  37     enable = false; # NOTE: useless on a server, and CPU intensive.
  38   };
  39
  40   # Clean /tmp automatically on boot.
  41   boot.cleanTmpDir = true;
  42
  43   time = {
  44     timeZone = "Europe/Paris";
  45   };
  46
  47   i18n = {
  48     consoleFont   = "Lat2-Terminus16";
  49     consoleKeyMap = "fr";
  50     defaultLocale = "fr_FR.UTF-8";
  51   };
  52
  53   services = {
  54     openssh = {
  55       enable = true;
  56       extraConfig = ''
  57       '';
  58     };
  59     journald = {
  60       extraConfig = ''
  61         SystemMaxUse=50M
  62       '';
  63     };
  64   };
  65
  66   environment = {
  67     systemPackages = with pkgs; [
  68       binutils
  69       dnsutils
  70       htop
  71       inetutils
  72       iotop
  73       lsof
  74       mailutils
  75       multitail
  76       ncdu
  77       pv
  78       swaplist
  79       tcpdump
  80       tmux
  81       tree
  82       vim
  83       which
  84     ];
  85
  86     etc."inputrc".text = lib.readFile defaults/readline/inputrc;
  87   };
  88
  89   programs = {
  90     bash = {
  91       interactiveShellInit = ''
  92         bind '"\e[A":history-search-backward'
  93         bind '"\e[B":history-search-forward'
  94
  95         # Ignore duplicate commands, ignore commands starting with a space
  96         export HISTCONTROL=erasedups:ignorespace
  97         export HISTSIZE=42000
  98
  99         # Append to the history instead of overwriting (good for multiple connections)
 100         shopt -s histappend
 101       '';
 102       shellAliases = {
 103         cl = "clear";
 104         l  = "ls -alh";
 105         ll = "ls -l";
 106         ls = "ls --color=tty";
 107         mem = "ps -e -orss=,user=,args= | sort -b -k1,1n";
 108
 109         s="sudo systemctl";
 110         s-u="systemctl --user";
 111
 112         nixos-clean="sudo nix-collect-garbage -d";
 113         nixos-history="sudo nix-env --list-generations --profile /nix/var/nix/profiles/system";
 114         nixos-rollback="sudo nixos-rebuild switch --rollback";
 115         nixos-update="sudo nix-channel --update";
 116         nixos-upgrade="sudo nixos-rebuild switch";
 117         nixos-upstream="sudo nix-channel --list";
 118       };
 119     };
 120     mtr.enable = true;
 121   };
 122 };
 123 }