nixos-configs/configuration.nix

{ pkgs, ... }:

{
  disabledModules = [ "system/boot/loader/raspberrypi/raspberrypi.nix" ];
  imports = [
    ./modules/system/boot/loader/raspberrypi/raspberrypi.nix
    ./fileserver.nix
  ];

  boot = {
    kernelPackages = pkgs.linuxPackages_rpi4;
    supportedFilesystems = ["zfs"];
    zfs.enableUnstable = true;
    loader = {
      grub.enable = false;
      raspberryPi = {
        enable = true;
        version = 4;
        configurationLimit = 1;
      };
    };
  };
  
  # MAKE SURE THESE ARE RIGHT OR THE PI WILL NOT BOOT
  fileSystems = {
    "/" = {
      fsType = "ext4";
      device = "/dev/disk/by-label/NIXOS_SD";
    };
    "/boot" = {
      fsType = "vfat";
      device = "/dev/disk/by-label/NIXOS_BOOT";
    };
  };
  
  hardware.enableRedistributableFirmware = true;
  
  swapDevices = [ { device = "/swap"; size = 1024; } ];
  
  console.keyMap = "us";
  i18n.defaultLocale = "en_US.UTF-8";
  
  environment.systemPackages = with pkgs;
  let
    py3-packages = python-packages: with python-packages; [
      flask
    ];
    py3-with-packages = python3.withPackages py3-packages;
  in [
    wget vim curl git htop bash tmux psmisc manpages pv lsof
    zip unzip
    nginx
    py3-with-packages
    usbutils
    hdparm sdparm smartmontools gptfdisk gnufdisk
    dosfstools
    mkpasswd samba
    tinc_pre
    #file-rename
    rsync
    rclone gnupg
  ];
  
  networking = {
    hostName = "catacomb";
    hostId = "beeeeee5";
    firewall = {
      enable = true;
      allowPing = true;
      allowedTCPPorts = [ 22 139 445 ];
      allowedUDPPorts = [ 137 138 ];
    };
  };
  
  security = {
    hideProcessInformation = true;
  };
 
  services.cron = {
    enable = true;
    systemCronJobs = [
      "0 20 * * 1 root /root/reassert-nas-permissions.sh"
      "0  0 * * 1 tvb  . /etc/profile; /home/tvb/gitea-backup"
    ];
  };
 
  services.openssh = {
    enable = true;
    passwordAuthentication = true;
  };

  services.ntp = {
    enable = true;
    servers = ["time.nist.gov"];
  };

  services.rsyncd.enable = true;

  services.samba =
    let
      sambaShare = path: validUsers: {
        path = path;
        comment = "Samba share for ${path}";
        browseable = "yes";
        "read only" = "no";
        "guest okay" = "no";
        "create mask" = "0640";
        "force create mode" = "0640";
        "directory mask" = "0750";
        "force directory mode" = "0750";
        "valid users" = validUsers;
        "force group" = ''nas'';
      };
      sambaShareRO = path: validUsers: {
        path = path;
        comment = "Read-only Samba share for ${path}";
        browseable = "yes";
        "read only" = "yes";
        "guest okay" = "no";
        "valid users" = validUsers;
        "force group" = ''nas'';
      };
    in
    {
      enable = true;
      securityType = "user";
      extraConfig = ''
        workgroup = beatific
        server string = Catacomb Nix SMB
        netbios name = catacomb
        deadtime = 300

        local master = yes
        domain master = yes
        preferred master = yes

        guest account = nobody
        map to guest = bad user

        case sensitive = yes
        veto files = /^.DS_Store$/^.Trash-1000$/

        load printers = no
        printcap name = /dev/null
        printing = bsd

        log file = /var/log/samba/client-%m.log
        log level = 2
        max log size = 64

        hide dot files = no
        hosts allow = 10.7.3.
        map archive = no
        unix extensions = yes

	ntlm auth = yes
      '';
      shares = {
        audioRO = sambaShareRO "/nas/audio" ''@nas'';
        docRO = sambaShareRO "/nas/doc/" ''@nas'';
        gameRO = sambaShareRO "/nas/game/" ''@nas'';
        imageRO = sambaShareRO "/nas/image" ''@nas'';
        videoRO = sambaShareRO "/nas/video" ''@nas'';
        audio = sambaShare "/nas/audio" ''@nas'';
        doc = sambaShare "/nas/doc/" ''@nas'';
        game = sambaShare "/nas/game/" ''@nas'';
        image = sambaShare "/nas/image" ''@nas'';
        video = sambaShare "/nas/video" ''@nas'';
      };
    };
 
  services.tinc.networks = {
    beatific = {
      name = "catacomb";
      listenAddress = "0.0.0.0";
      chroot = false;
    };
  };
 
  services.zfs = {
    autoScrub = {
      enable = true;
      pools = ["catapool"];
      interval = "monthly";
    };
  };

  users.groups = {
    nas = { gid = 1600; };
  };

  users.users.tvb = {
    isNormalUser = true;
    uid = 1001;
    password = "badpassword";
    extraGroups = ["wheel" "nas"];
    shell = pkgs.bash;
    openssh.authorizedKeys.keyFiles = [
      ./keys/tvb.palamas.pub
      ./keys/tvb.stagirite.pub
      ./keys/monitor.isidore.pub
      ./keys/inquisitor.conduit.pub
    ];
  };
  #./keys/tvb.empyrean.pub

  nix.buildCores = 4;
}