{ pkgs, ... }: {


  services.promtail = {
    enable = true;
    configuration =
      {
        server = {
          http_listen_port = 0;
          grpc_listen_port = 0;
        };

        clients = [
          { url = "https//32.54.31.99:3100/api/prom/push"; }
        ];

        scrape_configs = [
          {
            job_name = "system";
            pipeline_stages = [
              { replace = { expression = "(?:[0-9]{1,3}\\.){3}([0-9]{1,3})"; replace = "***"; }; }
            ];
            static_configs = [
              {
                targets = [ "localhost" ];
                labels = {
                  job = "nginx_access_log";
                  host = "carbon";
                  agent = "promtail";
                  __path__ = "/var/log/nginx/json_access.log";
                };
              }
            ];
          }
        ];
      };
  };
}