Hello ! Would be great to have a playbook to upgrade system parts of an OpenStack Cloud ! With OpenStack Ansible : LXC containers and hosts. It would be awesome to do a controlled rolling reboot of hosts when needed... Different conditions to check : - for controllers : check galera status... - for compute nodes : disable compute node and live-evacuate instances... - for storage : with Ceph : set no out... I know, I can do it and contribute, but perhaps someone already has something similar ? It could be hosted in one of these projects : - https://git.openstack.org/cgit/openstack/openstack-ansible-ops - https://git.openstack.org/cgit/openstack/ansible-role-openstack-operations (Why already to project for the same goal ?)