nixos-module/container/upstream.nix: setup sched_cake

2021-04-03 04:31:55 +02:00 · 2021-04-03 04:31:55 +02:00 · 7615d4d8de
parent e9d4f1192f
commit 7615d4d8de
1 changed files with 9 additions and 1 deletions
--- a/nix/nixos-module/container/upstream.nix
+++ b/nix/nixos-module/container/upstream.nix
@ -12,8 +12,16 @@ let
    else null;
 in
 {
-  systemd.network.networks = builtins.mapAttrs (_: _: {
+  systemd.network.networks = builtins.mapAttrs (_: { upstream, ... }: {
    DHCP = "yes";
+
+    extraConfig = ''
+      [CAKE]
+      Parent = root
+      # DOCSIS overhead
+      OverheadBytes = 18
+      Bandwidth = ${toString upstream.upBandwidth}K
+    '';
  }) upstreamInterfaces;

  networking.nat = lib.optionalAttrs (firstUpstreamInterface != null) {