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 }