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