systemd-sysctl stopped working at boot

[anmazzotti]

elemental-toolkit version: nightly

Describe the bug

I did setup /etc/sysctl.d/99-k8s.conf as follows:

net.bridge.bridge-nf-call-iptables = 1
net.ipv4.ip_forward = 1
net.ipv4.conf.all.forwarding = 1

This used to work fine and I think it broke somewhere in July 2024.
Can only be reproduced on nightly, not on 2.1.0 for example.

systemd-sysctl doesn't seem to work anymore at boot.
Config is not applied.
This only happens on the installed/active system, it works as expected from the live media.

Logs
live-logs.txt
active-logs.txt

Additional context
As a workaround, restarting systemd-sysctl at boot seems to work fine

name: "Workaround for systemd-sysctl missing boot"
stages:
  boot:
  - commands:
    - systemctl restart systemd-sysctl