modules/pms7003-exporter.nix


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{ config, lib, pkgs, ... }:
let
  cfg = config.orbekk.pms7003-exporter;
  aliases = import ../data/aliases.nix;
in
{
  options = {
    orbekk.pms7003-exporter = {
      enable = lib.mkEnableOption "Enable PMS7003 exporter";
      bind-addr = lib.mkOption {
        type = lib.types.str;
        default = let
          port = aliases.services.prometheus-pms7003-exporter.port;
        in "0.0.0.0:${toString port}";
      };
    };
  };

  config = lib.mkIf cfg.enable {
    systemd.services.pms7003-exporter = {
      description = "PMS7003 prometheus exporter";
      wantedBy = [ "multi-user.target" ];
      after = [ "network.target" ];
      serviceConfig = {
        DynamicUser = true;
        SupplementaryGroups = "dialout";
        ExecStart = "${pkgs.pms7003}/bin/pms7003 --prometheus-bind-addr ${cfg.bind-addr} --quiet -v /dev/ttyUSB0";
      };
    };
  };
}