From e922fad91498310b2a169303d4510d325d979d2e Mon Sep 17 00:00:00 2001
From: Jonas Juselius <jonas.juselius@itpartner.no>
Date: Thu, 16 Sep 2021 13:05:01 +0200
Subject: [PATCH] kubelet: Disable cgroupsv2 for kubelet hosts

---
 nixos/modules/services/cluster/kubernetes/kubelet.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/nixos/modules/services/cluster/kubernetes/kubelet.nix b/nixos/modules/services/cluster/kubernetes/kubelet.nix
index 51b2b5f6eb0d..a5158369e09a 100644
--- a/nixos/modules/services/cluster/kubernetes/kubelet.nix
+++ b/nixos/modules/services/cluster/kubernetes/kubelet.nix
@@ -258,6 +258,8 @@ in
         "net.bridge.bridge-nf-call-ip6tables" = 1;
       };
 
+      systemd.enableUnifiedCgroupHierarchy = false; # true breaks node memory metrics
+
       systemd.services.kubelet = {
         description = "Kubernetes Kubelet Service";
         wantedBy = [ "kubernetes.target" ];