nixos-config/machines/okarin/hardware-configuration.nix

# SPDX-FileCopyrightText: 2023-2024 Simon Bruder <simon@sbruder.de>
#
# SPDX-License-Identifier: AGPL-3.0-or-later

{ lib, modulesPath, ... }:

{
  imports = [
    (modulesPath + "/profiles/qemu-guest.nix")
  ];

  sbruder.machine.isVm = true;

  boot = {
    kernelModules = [ ];
    extraModulePackages = [ ];
    kernelParams = [ "ip=dhcp" ];
    initrd = {
      availableKernelModules = [ "aesni_intel" "ahci" "sd_mod" "sr_mod" "virtio_net" "virtio_pci" "xhci_pci" ];
      kernelModules = [ ];
      network = {
        enable = true; # remote unlocking
        # for some reason, the DHCP server does not transmit the static route to the gateway in a form udhcpc understands
        # this works around this, but is arguably quite hacky
        postCommands = ''
          ip route add 85.215.165.1 dev eth0
          ip route add default via 85.215.165.1 dev eth0
        '';
      };
      luks.devices."root".device = "/dev/disk/by-uuid/1dcb9ee1-5594-4174-98a7-a362da09f131";
    };
    loader.grub.device = "/dev/vda";
  };

  fileSystems = {
    "/" = {
      device = "/dev/disk/by-uuid/3ab8f4a7-952c-4b6c-93c6-7b307d5bb88b";
      fsType = "btrfs";
      options = [ "compress=zstd" "discard" "noatime" "ssd" ]; # for some reason, the kernel assumes rotational
    };
    "/boot" = {
      device = "/dev/disk/by-uuid/97aec56b-5fea-4445-83dc-4a20dcf482ce";
      fsType = "ext2";
    };
  };

  zramSwap = {
    enable = true;
    memoryPercent = 150;
  };

  networking = {
    useDHCP = false;
    usePredictableInterfaceNames = false;
  };
  systemd.network = {
    enable = true;
    networks = {
      eth0 = {
        name = "eth0";
        DHCP = "yes";
        domains = [ "sbruder.de" ];
      };
    };
  };
}