Hi Wodel, We haven't done it yet (but will need to soon since we're on Train and stable/train branch is gone!) but this looks like a good place to start: https://docs.openstack.org/kolla-ansible/train/user/operating-kolla.html I'm not sure about this, but it came up in a web search and might help too: https://www.reversengineered.com/2019/05/10/upgrading-kolla-ansible-for-deploying-openstack/ HTH, Greg. On 18/8/22 18:07, wodel youchi wrote: > Hi, > > What are the steps of upgrading an openstack platform when the upgrade > involves: > > - OS upgrade: how to perform the upgrade? What type of node to upgrade > first? Controllers, network or compute? > > - Ceph storage when using HCI deployment? > > Just general steps. > > Regards -- Gregory Orange Cloud System Administrator Scientific Platforms Team building representative Pawsey Supercomputing Centre, CSIRO