Error running kubernix on btrfs

[PanAeon]

Hi,
I've compiled kubernix 0.2.0 against nixos 20.03. When tried to run it I got the following error:

ERROR] Kubelet (kubelet) died unexpectedly
[ERROR] Unable to start all processes

Tail of kubernix-run/kubelet/nixos/kubelet.log:

F0506 18:39:22.264088   12722 kubelet.go:1372] Failed to start ContainerManager failed to get rootfs info: failed to get device for dir "/home/vitalii/lab/foo/kubernix-run/kubelet/nixos/run": could not find device with major: 0, minor: 32 in cached partitions map

I've found similar issue here. After putting

featureGates:
  LocalStorageCapacityIsolation: false

into kubernix-run/kubelet/nixos/config.yml the issue had gone.

I'm not quite sure about implications of the above fix :)

[saschagrunert]

Hm, we could disable it, yeah. I'm also quite not sure about negative implications but do you mind opening a PR for that?