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path: root/flakes/private/opendmarc/flake.nix
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{
  inputs.opendmarc = {
    path = "../../opendmarc";
    type = "path";
  };
  inputs.nix-lib.url = "github:NixOS/nixpkgs";

  description = "Private configuration for opendmarc";
  outputs = { self, nix-lib, opendmarc }:
    let
      cfg = name': { config, lib, pkgs, name, ... }: lib.mkIf (name == name') {
        users.users."${config.services.opendmarc.user}".extraGroups = [ "keys" ];
        systemd.services.opendmarc.serviceConfig.Slice = "mail.slice";
        services.opendmarc = {
          enable = true;
          socket = "local:${config.myServices.mail.milters.sockets.opendmarc}";
          configFile = pkgs.writeText "opendmarc.conf" ''
            AuthservID                  HOSTNAME
            FailureReports              false
            FailureReportsBcc           postmaster@immae.eu
            FailureReportsOnNone        true
            FailureReportsSentBy        postmaster@immae.eu
            IgnoreAuthenticatedClients  true
            IgnoreHosts                 ${config.secrets.fullPaths."opendmarc/ignore.hosts"}
            SoftwareHeader              true
            SPFIgnoreResults            true
            SPFSelfValidate             true
            UMask                       002
            '';
          group = config.services.postfix.group;
        };
        services.filesWatcher.opendmarc = {
          restart = true;
          paths = [
            config.secrets.fullPaths."opendmarc/ignore.hosts"
          ];
        };
        secrets.keys = [
          {
            dest = "opendmarc/ignore.hosts";
            user = config.services.opendmarc.user;
            group = config.services.opendmarc.group;
            permissions = "0400";
            text = let
              mxes = lib.attrsets.filterAttrs
                (n: v: v.mx.enable)
                config.myEnv.servers;
              in
                builtins.concatStringsSep "\n" ([
                  config.myEnv.mail.dmarc.ignore_hosts
                ] ++ lib.mapAttrsToList (n: v: v.fqdn) mxes);
          }
        ];
      };
    in
      opendmarc.outputs //
      { nixosModules = opendmarc.nixosModules or {} // nix-lib.lib.genAttrs ["eldiron" "backup-2"] cfg; };
}