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     #binaryCaches = lib.mkForce [];
  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 }