nixos-config/machines/heimdall/configuration.nix

{ self, ... }@inputs:
{ modulesPath, lib, ... }:
# let
#   pkgs = self.inputs.nixpkgs.legacyPackages.x86_64-linux;
# in
{
  imports = [
    "${modulesPath}/profiles/qemu-guest.nix"

    ../../users/root
    ../../users/erwin
  ];

  eboskma = {
    users.erwin = {
      enable = true;
      server = true;
    };
    headscale = {
      enable = false;
      baseDomain = "asgard.datarift.nl";
      serverUrl = "https://heimdall.datarift.nl";
    };
    keycloak.enable = true;
    nix-common = {
      enable = true;
    };
  };

  networking = {
    hostName = "heimdall";
    domain = "datarift.nl";

    nameservers = [ "8.8.8.8" ];
    defaultGateway = "172.31.1.1";
    defaultGateway6 = {
      address = "fe80::1";
      interface = "eth0";
    };
    dhcpcd.enable = false;
    usePredictableInterfaceNames = lib.mkForce false;
    interfaces = {
      eth0 = {
        ipv4.addresses = [
          {
            address = "159.69.211.175";
            prefixLength = 32;
          }
        ];
        ipv6.addresses = [
          {
            address = "2a01:4f8:1c1e:5fb2::1";
            prefixLength = 64;
          }
          {
            address = "fe80::9400:2ff:fe12:a2eb";
            prefixLength = 64;
          }
        ];
        ipv4.routes = [
          {
            address = "172.31.1.1";
            prefixLength = 32;
          }
        ];
        ipv6.routes = [
          {
            address = "fe80::1";
            prefixLength = 128;
          }
        ];
      };
    };
  };

  ### Hetzner stuff
  boot = {
    tmp.cleanOnBoot = true;
    loader.grub.device = "/dev/sda";
    initrd = {
      availableKernelModules = [
        "ata_piix"
        "uhci_hcd"
        "xen_blkfront"
        "vmw_pvscsi"
      ];
      kernelModules = [ "nvme" ];
    };
  };

  fileSystems."/" = {
    device = "/dev/sda1";
    fsType = "ext4";
  };

  zramSwap.enable = true;
  ### END Hetzner stuff

  time.timeZone = "Europe/Amsterdam";

  system.configurationRevision = self.inputs.nixpkgs.lib.mkIf (self ? rev) self.rev;

  services = {
    udev.extraRules = ''
      ATTR{address}=="96:00:02:12:a2:eb", NAME="eth0"
    '';

    openssh = {
      enable = true;
      settings = {
        PasswordAuthentication = false;
      };
    };
    tailscale = {
      enable = true;
      permitCertUid = "caddy";
    };

    caddy = {
      virtualHosts = {
        "datarift.nl" = {
          extraConfig = ''
            @webfinger-erwin {
              path /.well-known/webfinger
              query resource=acct:erwin@datarift.nl
            }
            respond @webfinger-erwin 200 {
              body `{"subject":"acct:erwin@datarift.nl","links":[{"rel":"http://openid.net/specs/connect/1.0/issuer","href":"https://id.datarift.nl/realms/datarift"}]}`
              close
            }
          '';
        };
      };
    };
  };

  security.apparmor = {
    enable = true;
    killUnconfinedConfinables = true;
  };
  security.protectKernelImage = true;

  sops.defaultSopsFile = ./secrets.yaml;
  sops.secrets = {
    keycloak-db-password = { };
  };

  system.stateVersion = "23.05";
}