feat: cockpit: add cockpit-tailscale plugin

configuration.nix

@@ -65,6 +65,9 @@
 
     juanfont-headscale.headscale # install to allow debugging/control of headscale using the CLI
     pkgs.glauth
+
+    # Plugins for cockpit
+    cockpit-tailscale
   ];
 
   environment.variables = {

flake.nix

@@ -13,15 +13,21 @@
 
   outputs = { self, nixpkgs, agenix, juanfont-headscale }:
     let
-      overlay-juanfont-headscale = final: prev: {
+      pkgs = import nixpkgs { system = "x86_64-linux"; };
-        juanfont-headscale = juanfont-headscale.packages.${prev.system};
-        glauth = prev.callPackage ./pkgs/glauth.nix {};
-      };
     in {
+      packages.x86_64-linux.glauth = pkgs.callPackage ./pkgs/glauth.nix {};
+      packages.x86_64-linux.cockpit-tailscale = pkgs.callPackage ./pkgs/cockpit-tailscale.nix {};
+
       nixosConfigurations.samsehu = nixpkgs.lib.nixosSystem {
         system = "x86_64-linux";
         modules = [
-          ({config, pkgs, ...}: { nixpkgs.overlays = [ overlay-juanfont-headscale ]; })
+          ({config, pkgs, ...}: {
+            nixpkgs.overlays = [ (final: prev: {
+              juanfont-headscale = juanfont-headscale.packages.${prev.system};
+              glauth = self.packages.${prev.system}.glauth;
+              cockpit-tailscale = self.packages.${prev.system}.cockpit-tailscale;
+            })];
+          })
           ./agenix-config-module.nix
           ./configuration.nix
           ./services/glauth.nix

pkgs/cockpit-tailscale.nix

@@ -0,0 +1,15 @@
+{ lib, stdenv, fetchzip }:
+stdenv.mkDerivation rec {
+  pname = "cockpit-tailscale";
+  version = "0.0.6";
+
+  src = fetchzip {
+    url = "https://github.com/spotsnel/cockpit-tailscale/releases/download/v${version}/cockpit-tailscale-v${version}.tar.gz";
+    sha256 = "sha256-ESUZdt8GVEToyrv6UP8lOff67LsumdJAY1lXvC3fBaI=";
+  };
+
+  installPhase = ''
+    mkdir -p $out/share/cockpit
+    cp -r ${src} $out/share/cockpit/tailscale
+  '';
+}