infrastructure/hosts/hydrogen/configuration.nix

{ modulesPath, pkgs, lib, name, ... }: {
  imports =
    lib.optional (builtins.pathExists ./do-userdata.nix) ./do-userdata.nix ++ [
      (modulesPath + "/virtualisation/digital-ocean-config.nix")

      ./services
    ];

  networking = {
    hostName = name;
    domain = "fainsin.bzh";
    firewall = {
      allowedTCPPorts = [
        22 # ssh
        80 # http
        443 # https
      ];
    };
  };

  services.fail2ban = {
    enable = true;
    maxretry = 5;
  };

  networking.nat.enable = true;

  users.mutableUsers = false;
  users.users.root.openssh.authorizedKeys.keys = [
    "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAINTvwXCT99s1EwOCeGQ28jyCAH/RBoLZza9k5I7wWdEu"
  ];

  environment.systemPackages = with pkgs; [ htop ];

  services.nginx = {
    enable = true;

    recommendedTlsSettings = true;
    recommendedOptimisation = true;
    recommendedGzipSettings = true;
    recommendedProxySettings = true;

    virtualHosts = {
      "fainsin.bzh" = {
        enableACME = true;
        forceSSL = true;
        locations."/".return =
          ''301 "$scheme://laurent.fainsin.bzh$request_uri"'';
      };
      "laurent.fainsin.bzh" = {
        enableACME = true;
        forceSSL = true;
        root = "/srv/www/";
      };
      default = {
        default = true;
        locations."/".return = ''301 "$scheme://fainsin.bzh" '';
      };
    };
  };

  security.acme = {
    acceptTerms = true;
    defaults.email = "acme@fainsin.bzh";
  };

  # This value determines the NixOS release from which the default
  # settings for stateful data, like file locations and database versions
  # on your system were taken. It‘s perfectly fine and recommended to leave
  # this value at the release version of the first install of this system.
  # Before changing this value read the documentation for this option
  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
  system.stateVersion = "22.11"; # Did you read the comment?
}