Unable to run basic example due to cgroup conflict with docker

[raonsv]

I installed bare metal version on ubuntu LTS 22.04 with python3. I was able to run examples without container node. When I tried "sudo python3 containernet_example.py" I get the following error:
docker.errors.APIError: 400 Client Error: Bad Request ("cgroup-parent for systemd chgroup should be a valid slice named as "xxx.slice"")

I checked that docker is in cgroup systemd - docker is installed using your ansible.

I tried to change the cgroup to cgroupfs and restarting docker daemon but cgroup remains systemd.

I would appreciate any help. Did you see this error with others.

Best,
Nagi

[raonsv]

It is resolved it by creating file /etc/docker/daemon.json configuration file with the following:
{
"exec-opts": ["native.cgroupdriver=cgroupfs"]
}
After saving it, restarting docker service.
sudo systemctl enable docker
sudo systemclt daemon-reload
sudo systemctl restart docker