Lxc3: run docker inside lxc

LXC
1

Can someone point me towards the lxc 3 config I need to use to run docker inside my lxc container?
Most of my searches have lead me to configs for lxc 2 and that doesn’t seem to work including

security.nesting = true
security.privileged = true

At the moment I get this error:

docker: Error response from daemon: OCI runtime create failed: container_linux.go:349: starting container process caused "process_linux.go:449: container init caused \"process_linux.go:415: setting cgroup config for procHooks process caused \\\"failed to write \\\\\\\"c 10:200 rwm\\\\\\\" to \\\\\\\"/sys/fs/cgroup/devices/docker/7613dee59979f2402083e0125f30ed16d3cff37022d8c37c2490cc19adee1c19/devices.allow\\\\\\\": write /sys/fs/cgroup/devices/docker/7613dee59979f2402083e0125f30ed16d3cff37022d8c37c2490cc19adee1c19/devices.allow: operation not permitted\\\"\"": unknown.
ERRO[0000] error waiting for container: context canceled

EDIT:
I am running Fedora 32 as host OS

2

Okay, looks like I figured it out for the time being. Add the following to you lxc container config:

lxc.cgroup.devices.allow = c 10:200 rwm

3

How do I set this?
All attempts fail with errors and I cannot find this config in the docs.