prometheus-knot-exporter: 2021-08-21 -> 3.3.2

- `rome` was removed because it is no longer maintained and is succeeded by `biome`.

- The `prometheus-knot-exporter` was migrated to a version maintained by CZ.NIC. Various metric names have changed, so checking existing rules is recommended.

- The `services.mtr-exporter.target` has been removed in favor of `services.mtr-exporter.jobs` which allows specifying multiple targets.

- Setting `nixpkgs.config` options while providing an external `pkgs` instance will now raise an error instead of silently ignoring the options. NixOS modules no longer set `nixpkgs.config` to accomodate this. This specifically affects `services.locate`, `services.xserver.displayManager.lightdm.greeters.tiny` and `programs.firefox` NixOS modules. No manual intervention should be required in most cases, however, configurations relying on those modules affecting packages outside the system environment should switch to explicit overlays.

{ stdenv, fetchFromGitHub, lib, python3, nixosTests }:

{ lib

, python3

, fetchPypi

, nixosTests

}:

stdenv.mkDerivation rec {

python3.pkgs.buildPythonApplication rec {

  pname = "knot-exporter";

  version = "unstable-2021-08-21";

  version = "3.3.2";

  pyproject = true;

  src = fetchFromGitHub {

    owner = "ghedo";

    repo = "knot_exporter";

    rev = "b18eb7db735b50280f0815497475f4c7092a6550";

    sha256 = "sha256-FGzkO/KHDhkM3PA2urNQcrMi3MHADkd0YwAvu1jvfrU=";

  src = fetchPypi {

    pname = "knot_exporter";

    inherit version;

    hash = "sha256-/TBzq9MhYb664TsSD46Ep7gOkLBmmPSK9d89xlgvbSw=";

  };

  dontBuild = true;

  nativeBuildInputs = [

    python3.pkgs.hatchling

  ];

  nativeBuildInputs = [ python3.pkgs.wrapPython ];

  buildInputs = [ python3 ];

  propagatedBuildInputs = with python3.pkgs; [

    libknot

    prometheus-client

    psutil

  ];

  installPhase = ''

    runHook preInstall

    install -Dm0755 knot_exporter $out/bin/knot_exporter

    patchShebangs $out/bin

    buildPythonPath ${python3.pkgs.prometheus-client}

    patchPythonScript $out/bin/knot_exporter

    runHook postInstall

  '';

  pythonImportsCheck = [

    "knot_exporter"

  ];

  passthru.tests = { inherit (nixosTests.prometheus-exporters) knot; };

  meta = with lib; {

    homepage = "https://github.com/ghedo/knot_exporter";

    description = "Prometheus exporter for Knot DNS";

    homepage = "https://gitlab.nic.cz/knot/knot-dns/-/tree/master/python/knot_exporter";

    license = licenses.gpl3Only;

    maintainers = with maintainers; [ ma27 ];

    platforms = platforms.linux;

    maintainers = with maintainers; [ ma27 hexa ];

    mainProgram = "knot-exporter";

  };

}