nix-infra/config/hosts/lifeline/configuration.nix

{ ... }:
{
  boot.loader.grub = {
    enable = true;
    device = "/dev/vda";
  };

  boot.kernel.sysctl."net.ipv4.conf.all.forwarding" = true;

  networking = {
    hostName = "lifeline";
    useDHCP = true;
    firewall = {
      enable = true;
      allowedUDPPorts = [ 51820 ];
    };
  };

  services.prometheus.exporters.node.enable = false;

  system.stateVersion = "23.05";
}