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     #binaryCaches = lib.mkForce [];
  13     extraOptions = ''
  14     '';
  15     # Use gc.automatic to keep disk space under control.
  16     gc = {
  17       automatic = true;
  18       dates = "weekly";
  19       options = "--delete-older-than 30d";
  20     };
  21     nixPath = [
  22       "nixpkgs=${pkgs.path}"
  23     ];
  24   };
  25
  26   nixpkgs = {
  27     config = {
  28       allowUnfree = false;
  29       /*
  30       packageOverrides = pkgs: {
  31         postfix = pkgs.postfix.override {
  32           withLDAP = true;
  33         };
  34       };
  35       */
  36     };
  37     #overlays = import ../overlays.nix;
  38   };
  39
  40   documentation.nixos = {
  41     enable = false; # NOTE: useless on a server, and CPU intensive.
  42   };
  43
  44   # Clean /tmp automatically on boot.
  45   boot.cleanTmpDir = true;
  46
  47   time = {
  48     timeZone = "Europe/Paris";
  49   };
  50
  51   i18n = {
  52     consoleFont   = "Lat2-Terminus16";
  53     consoleKeyMap = "fr";
  54     defaultLocale = "fr_FR.UTF-8";
  55   };
  56
  57   services = {
  58     openssh = {
  59       enable = true;
  60       passwordAuthentication = false;
  61       extraConfig = ''
  62       '';
  63     };
  64     journald = {
  65       extraConfig = ''
  66         SystemMaxUse=50M
  67       '';
  68     };
  69   };
  70
  71   environment = {
  72     systemPackages = with pkgs; [
  73       binutils
  74       dnsutils
  75       htop
  76       inetutils
  77       iotop
  78       lsof
  79       mailutils
  80       multitail
  81       ncdu
  82       pv
  83       swaplist
  84       tcpdump
  85       tmux
  86       tree
  87       vim
  88       which
  89     ];
  90
  91     etc."inputrc".text = lib.readFile defaults/readline/inputrc;
  92   };
  93
  94   programs = {
  95     bash = {
  96       interactiveShellInit = ''
  97         bind '"\e[A":history-search-backward'
  98         bind '"\e[B":history-search-forward'
  99
 100         # Ignore duplicate commands, ignore commands starting with a space
 101         export HISTCONTROL=erasedups:ignorespace
 102         export HISTSIZE=42000
 103
 104         # Append to the history instead of overwriting (good for multiple connections)
 105         shopt -s histappend
 106       '';
 107       shellAliases = {
 108         cl = "clear";
 109         l  = "ls -alh";
 110         ll = "ls -l";
 111         ls = "ls --color=tty";
 112         mem = "ps -e -orss=,user=,args= | sort -b -k1,1n";
 113
 114         s="sudo systemctl";
 115         s-u="systemctl --user";
 116
 117         nixos-clean="sudo nix-collect-garbage -d";
 118         nixos-history="sudo nix-env --list-generations --profile /nix/var/nix/profiles/system";
 119         nixos-rollback="sudo nixos-rebuild switch --rollback";
 120         nixos-update="sudo nix-channel --update";
 121         nixos-upgrade="sudo nixos-rebuild switch";
 122         nixos-upstream="sudo nix-channel --list";
 123       };
 124     };
 125     mtr.enable = true;
 126   };
 127 };
 128 }