KubeDiagrams/flake.nix at main · philippemerle/KubeDiagrams · GitHub

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{
  description = "Flake for github:philippemerle/KubeDiagrams";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-24.11";
    flake-utils.url = "github:numtide/flake-utils";
  };

  outputs =
    {
      self,
      nixpkgs,
      flake-utils,
    }:
    flake-utils.lib.eachDefaultSystem (
      system:
      let
        pkgs = nixpkgs.legacyPackages.${system};

        graphviz2drawio = let
          pname = "graphviz2drawio";
          version = "1.1.0";
        in
          pkgs.python3Packages.buildPythonPackage {
            inherit pname version;
            src = pkgs.fetchPypi {
              inherit pname version;
              sha256 = "sha256-h1i57vusXYwDoDWMAViEUjXJw8qpmIfw9gJs/swolfI=";
            };
          };

        pythonEnv = pkgs.python312.withPackages (ps: [
          ps.pyyaml
          ps.diagrams
          graphviz2drawio
        ]);

        kube-diagrams = pkgs.stdenv.mkDerivation {
          pname = "kube-diagrams";
          version = "0.9.0";
          src = self;
          postPatch = ''
            substituteInPlace bin/kube-diagrams \
              --replace '/usr/bin/env python3' '${pythonEnv}/bin/python'
          '';
          installPhase = ''
            mkdir -p $out/bin
            cp -r bin/* $out/bin/
            chmod +x $out/bin/*-diagrams
          '';
        };

        kubectl-diagrams = pkgs.writeShellApplication {
          name = "kubectl-diagrams";
          runtimeInputs = [ kube-diagrams ];
          text = builtins.readFile ./bin/kubectl-diagrams;
        };

        runtimeEnv =
          with pkgs;
          [
            cacert
            graphviz
            kubernetes-helm
            kube-diagrams
            kubectl-diagrams
            pythonEnv
          ]
          ++ lib.optionals pkgs.stdenv.isLinux [ busybox ];
      in
      {
        devShells.default = pkgs.mkShell {
          packages =
            with pkgs;
            [
              git
              lazygit
              nodePackages.prettier
            ]
            ++ runtimeEnv;
        };

        packages = {
          default = kube-diagrams;
          kube-diagrams = kube-diagrams;
          kubectl-diagrams = kubectl-diagrams;
          docker = pkgs.dockerTools.buildImage {
            name = "ghcr.io/philippemerle/kubediagrams";
            tag = "latest";
            copyToRoot = runtimeEnv;
            created = builtins.substring 0 8 self.lastModifiedDate;
          };
        };
      }
    );
}