nixpkgs/nixos/modules/services/monitoring/do-agent.nix

{ config, lib, pkgs, ... }:
let
  cfg = config.services.do-agent;

in
{
  options.services.do-agent = {
    enable = lib.mkEnableOption "do-agent, the DigitalOcean droplet metrics agent";
  };

  config = lib.mkIf cfg.enable {
    systemd.packages = [ pkgs.do-agent ];

    systemd.services.do-agent = {
      wantedBy = [ "multi-user.target" ];
      serviceConfig = {
        ExecStart = [ "" "${pkgs.do-agent}/bin/do-agent --syslog" ];
        DynamicUser = true;
      };
    };
  };
}