lxd: Add proper support for `nftables`

nixos/modules/virtualisation/lxd.nix

@@ -15,7 +15,6 @@ in
   ###### interface
 
   options = {
-
     virtualisation.lxd = {
       enable = mkOption {
         type = types.bool;
@@ -30,7 +29,7 @@ in
 
       package = mkOption {
         type = types.package;
-        default = pkgs.lxd;
+        default = pkgs.lxd.override { nftablesSupport = config.networking.nftables.enable; };
         defaultText = "pkgs.lxd";
         description = ''
           The LXD package to use.
@@ -65,6 +64,7 @@ in
           with nixos.
         '';
       };
+
       recommendedSysctlSettings = mkOption {
         type = types.bool;
         default = false;
@@ -83,7 +83,6 @@ in
   ###### implementation
 
   config = mkIf cfg.enable {
-
     environment.systemPackages = [ cfg.package ];
 
     security.apparmor = {

pkgs/tools/admin/lxd/default.nix

@@ -1,13 +1,21 @@
 { stdenv, hwdata, pkgconfig, lxc, buildGoPackage, fetchurl
 , makeWrapper, acl, rsync, gnutar, xz, btrfs-progs, gzip, dnsmasq
-, squashfsTools, iproute, iptables, ebtables, libcap, libco-canonical, dqlite
-, raft-canonical, sqlite-replication, udev
+, squashfsTools, iproute, iptables, ebtables, iptables-nftables-compat, libcap
+, libco-canonical, dqlite, raft-canonical, sqlite-replication, udev
 , writeShellScriptBin, apparmor-profiles, apparmor-parser
 , criu
 , bash
 , installShellFiles
+, nftablesSupport ? false
 }:
 
+let
+  networkPkgs = if nftablesSupport then
+    [ iptables-nftables-compat ]
+  else
+    [ iptables ebtables ];
+
+in
 buildGoPackage rec {
   pname = "lxd";
   version = "4.1";
@@ -38,12 +46,14 @@ buildGoPackage rec {
     # test binaries, code generation
     rm $out/bin/{deps,macaroon-identity,generate}
 
-    wrapProgram $out/bin/lxd --prefix PATH : ${stdenv.lib.makeBinPath [
-      acl rsync gnutar xz btrfs-progs gzip dnsmasq squashfsTools iproute iptables ebtables bash criu
-      (writeShellScriptBin "apparmor_parser" ''
-        exec '${apparmor-parser}/bin/apparmor_parser' -I '${apparmor-profiles}/etc/apparmor.d' "$@"
-      '')
-    ]}
+    wrapProgram $out/bin/lxd --prefix PATH : ${stdenv.lib.makeBinPath (
+      networkPkgs
+      ++ [ acl rsync gnutar xz btrfs-progs gzip dnsmasq squashfsTools iproute bash criu ]
+      ++ [ (writeShellScriptBin "apparmor_parser" ''
+             exec '${apparmor-parser}/bin/apparmor_parser' -I '${apparmor-profiles}/etc/apparmor.d' "$@"
+           '') ]
+      )
+    }
 
     installShellCompletion --bash go/src/github.com/lxc/lxd/scripts/bash/lxd-client
   '';