Ignazio, please apply the following -> https://review.opendev.org/c/openstack/kolla-ansible/+/806476 That fixes the issue.
The issue was because of Docker's behaviour with cgroupsv1, it actually cleaned them up on container exit. That's why Debian 11, using cgroupsv2, was able to avoid this issue.
Ignazio, please apply the following -> https:/ /review. opendev. org/c/openstack /kolla- ansible/ +/806476
That fixes the issue.
The issue was because of Docker's behaviour with cgroupsv1, it actually cleaned them up on container exit.
That's why Debian 11, using cgroupsv2, was able to avoid this issue.