NixOS Server config

configuration.nix

{ config, pkgs, ... }:
{
  # Bare basics
  boot.loader.grub.enable = true;
  boot.loader.grub.version = 1;
  boot.loader.grub.extraPerEntryConfig = "root (hd0)";
  boot.loader.grub.device = "nodev";
  boot.initrd.kernelModules = [ "xen_blkfront" ];
  fileSystems."/boot".fsType = "ext2";
  fileSystems."/boot".device = "/dev/xvda";
  fileSystems."/".label = "nixos";
  fileSystems."/".fsType = "ext4";
  swapDevices = [{ device = "/dev/xvdb"; }];

  # Networking
  networking.hostName = "zerver.zef.me";

  # Main services
  services.postfix.enable = true;
  services.sshd.enable = true;
  services.mysql.enable = true;

  # Web server
  services.httpd.enable = true;

  services.httpd.adminAddr = "zef@zef.me";
  services.httpd.extraModules = [
    { name = "php5";
      path = "${pkgs.php54}/modules/libphp5.so"; }
  ];

  services.httpd.virtualHosts = [
    { hostName = "zef.me";
      documentRoot = "/home/zef/www/zef.me"; }
    { hostName = "stateofcode.com";
      serverAliases = ["www.stateofcode.com"];
      documentRoot = "/home/zef/www/stateofcode.com"; }
  ];

  // Packages available to everybody
  environment.systemPackages = [ pkgs.htop ];

  users.extraUsers = {
    zef = {
      createHome = true;
      extraGroups = [ "wheel" ];
      group = "users";
      home = "/home/zef";
      shell = "/bin/sh";
    };
  };
}