nixos-config/2configs/stats/telegraf/default.nix

{...}:
let
  url = "http://localhost:8086";
  mqtt_server = "localhost:1883";
in {
  services.telegraf = {
    enable = true;
    extraConfig = {
      agent.debug = false;
      outputs = {
        influxdb = [{
          urls = [ url ];
          database = "telegraf";
        }];
        #file = [{ # debugging
        #  files = [ "stdout" ];
        #  data_format = "influx";
        #}];

        #mqtt = [{
        #  servers = [ mqtt_server ];
        #  topic_prefix = "/telegraf";
        #  data_format = "json";
        #  qos = 0;
        #  batch = false;
        #}];
      };
    };
  };
}