nixos-config/terranix/graylog/modules/all-messages.nix

{ config, lib, pkgs, ... }:

with lib;

let

  cfg = config.graylog.all_messages;

in {

  options.graylog.all_messages = {
    streamId = mkOption {
      type = with types; str;
      default = "000000000000000000000001";
      description = ''
        id of "All Messages" stream;
      '';
    };
    rules = mkOption {
      default = [ ];
      type = with types; listOf str;
      example = [ "route sshd" "route kernel" "mark junk" ];
      description = ''
        all the rules which should be called on the pipeline operating on the
        all_messages input
      '';
    };
  };

  config = mkIf (cfg.rules != [ ]) {
    graylog.pipeline.mainsorting = {
      source = let rules = map (rule: "  rule \"${rule}\";") cfg.rules;
      in ''
        stage 0 match either
        ${concatStringsSep "\n" rules}
      '';

      description = "main sorting pipeline (TF)";
      streamId = cfg.streamId;
    };
  };

}