{ depot, lib, pkgs, rebuilder, config, ... }:
let
  inherit (depot.ops) secrets;
in {
  imports = [ ../lib/bgp.nix ];

  boot.initrd.availableKernelModules = [
    "ata_piix"
    "vmw_pvscsi"
    "sd_mod"
    "sr_mod"
  ];

  fileSystems = {
    "/" = {
      device = "/dev/disk/by-uuid/fafafa2b-ec19-40ae-bd04-cc286beb2946";
      fsType = "ext4";
    };
  };
  swapDevices = [
    { device = "/dev/disk/by-uuid/9920239c-492f-4f79-8a06-8f412d047605"; }
  ];

  nix.maxJobs = lib.mkDefault 2;

  # Use GRUB2.
  boot.loader.grub.enable = true;
  boot.loader.grub.version = 2;
  boot.loader.grub.device = "/dev/sda";

  # Networking!
  networking = {
    hostName = "ixvm-fra01"; # Define your hostname.
    domain = "as205479.net";
    nameservers = ["8.8.8.8" "8.8.4.4"];
    useDHCP = false;
    defaultGateway = {
      address = "141.98.136.97"; interface = "ens-inet";
    };
    defaultGateway6 = {
      address = "2a09:11c0:f1:bc0b::1"; interface = "ens-inet";
    };
    interfaces = {
      ens-inet = {
        ipv4.addresses = [
          { address = "141.98.136.124"; prefixLength = 27; }
        ];
        ipv6.addresses = [
          { address = "2a09:11c0:f1:bc0b::2"; prefixLength = 64; }
        ];
      };
      ens-kleyrex = {
        ipv4.addresses = [
          { address = "193.189.83.41"; prefixLength = 23; }
        ];
        ipv6.addresses = [
          { address = "2001:7f8:33::a120:5479:1"; prefixLength = 48; }
        ];
      };
      ens-locix = {
        ipv4.addresses = [
          { address = "185.1.166.219"; prefixLength = 23; }
        ];
        ipv6.addresses = [
          { address = "2001:7f8:f2:e1::a20:5479:1"; prefixLength = 48; }
        ];
      };
      ens-nlix = {
        ipv4.addresses = [
          { address = "193.239.118.225"; prefixLength = 22; }
        ];
        ipv6.addresses = [
          { address = "2001:7f8:13::a520:5479:1"; prefixLength = 64; }
        ];
      };
    };
  };
  services.udev.extraRules = ''
    ATTR{address}=="00:50:56:a3:b0:5e", NAME="ens-inet"
    ATTR{address}=="00:50:56:a3:27:bd", NAME="ens-kleyrex"
    ATTR{address}=="00:50:56:a3:95:72", NAME="ens-locix"
    ATTR{address}=="00:50:56:a3:6e:0f", NAME="ens-nlix"
  '';

  environment.systemPackages = with pkgs; [];

  # Define a user account.
  users.users = {
    lukegb.extraGroups = [ "networkmanager" "bird2" ];
  };

  services.lukegbgp = let local = {
    asn = 205479;
  }; in {
    enable = true;
    config = {
      local = {
        routerID = "141.98.136.124";
      };
      peering = {
        ixvm = {
          local = local // {
            v4 = "141.98.136.124";
            v6 = "2a09:11c0:f1:bc0b::2";
          };
          remote = {
            asn = 209844;
            export_community = 2000;
            routers = [{
              v4 = "141.98.136.97";
              v6 = "2a09:11c0:f1:bc0b::1";
            } {
              v4 = "141.98.136.126";
              v6 = "2a09:11c0:f1:bc0b::3";
            }];
          };
        };
        kleyrex = {
          local = local // {
            v4 = "193.189.83.41";
            v6 = "2001:7f8:33::a120:5479:1";
          };
          remote = {
            asn = 31142;
            export_community = 2001;
            routers = [{
              v4 = "193.189.82.251";
              v6 = "2001:7f8:33::a103:1142:1";
            } {
              v4 = "193.189.82.252";
              v6 = "2001:7f8:33::a103:1142:2";
            } {
              v4 = "193.189.82.253";
              v6 = "2001:7f8:33::a103:1142:3";
            }];
          };
        };
        locix = {
          local = local // {
            v4 = "185.1.166.219";
            v6 = "2001:7f8:f2:e1::a20:5479:1";
          };
          remote = {
            asn = 202409;
            export_community = 2002;
            routers = [{
              v4 = "185.1.166.100";
              v6 = "2001:7f8:f2:e1::babe:1";
            } {
              v4 = "185.1.166.200";
              v6 = "2001:7f8:f2:e1::dead:1";
            } {
              v4 = "185.1.166.254";
              v6 = "2001:7f8:f2:e1::be5a";
            }];
          };
        };
        nlix = {
          local = local // {
            v4 = "193.239.118.225";
            v6 = "2001:7f8:13::a520:5479:1";
          };
          remote = {
            asn = 34307;
            export_community = 2003;
            routers = [{
              v4 = "193.239.116.255";
              v6 = "2001:7f8:13::a503:4307:1";
            } {
              enabled = false;
              v4 = "193.239.117.0";
              v6 = "2001:7f8:13::a503:4307:2";
            }];
          };
        };
      };
    };
  };

  system.stateVersion = "20.03";
}