infra/modules/nixos/monitoring/telegraf.nix

{ inputs, ... }:
{
  services.telegraf.extraConfig.inputs = {
    http_response = [
      {
        urls = [ "https://buildbot.nix-community.org/" ];
        response_string_match = "Buildbot Web UI";
        tags.host = "build03.nix-community.org";
        tags.org = "nix-community";
      }
      {
        urls = [ "https://hydra.nix-community.org/" ];
        response_string_match = "hosted on this server";
        tags.host = "build03.nix-community.org";
        tags.org = "nix-community";
      }
      {
        urls = [ "https://nur-update.nix-community.org/" ];
        response_string_match = "NUR update endpoint";
        tags.host = "build03.nix-community.org";
        tags.org = "nix-community";
      }
      {
        urls = [ "https://nixpkgs-update-logs.nix-community.org/~supervisor/" ];
        response_string_match = "state.db";
        tags.host = "build02.nix-community.org";
        tags.org = "nix-community";
      }
    ];
    net_response =
      let
        hosts = (import "${inputs.self}/modules/shared/known-hosts.nix").programs.ssh.knownHosts;
      in
      map (host: {
        protocol = "tcp";
        address = "${toString host.hostNames}:22";
        send = "SSH-2.0-Telegraf";
        expect = "SSH-2.0";
        tags.host = toString host.hostNames;
        tags.org = "nix-community";
        timeout = "10s";
      }) (builtins.attrValues hosts);
  };
}