dotfiles/systems/mars/config/wireguard.nix

{ config, flake, ... }:
let
  inherit (flake.config.services.instances) wireGuard web;
  inherit (flake.config.machines.devices) ceres mars;
  service = wireGuard;
in
{
  networking = {
    wireguard.interfaces = {
      wg0 = {
        ips = [ "${mars.wireguard.ip0}/32" ];
        privateKeyFile = config.sops.secrets."${service.name}-mars-private".path;
        peers = [
          {
            publicKey = "fs58+Kz+eG9qAXvvMB2NkW+wa88yP61uam4HHWaBJVw=";
            allowedIPs = [
              "${ceres.wireguard.ip0}/32"
              "${web.localhost.address4}/24"
              "${web.remotehost.address0}/32"
            ];
            endpoint = "${web.remotehost.address0}:${builtins.toString service.ports.port1}";
            persistentKeepalive = 25;
          }
        ];
      };
    };
  };

  sops =
    let
      sopsPath = secret: {
        path = "${service.sops.path0}/${service.name}-${secret}-pass";
        owner = "root";
        mode = "600";
      };
    in
    {
      secrets = builtins.listToAttrs (
        map
          (secret: {
            name = "${service.name}-${secret}";
            value = sopsPath secret;
          })
          [
            "mars-private"
            "mars-public"
          ]
      );
    };
}