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Mar 25, 2025
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Docs: add warning about Ceph when updating packages #1578

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18 changes: 18 additions & 0 deletions doc/source/operations/upgrading-openstack.rst
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Expand Up @@ -989,6 +989,24 @@ the change:

kayobe playbook run $KAYOBE_CONFIG_PATH/ansible/reboot.yml -l <host>

.. warning::

Take extra care when updating packages on Ceph hosts. Docker live-restore
does not work until the Squid version of Ceph, so a reload of docker will
restart all Ceph containers. Set the hosts to maintenance mode before
updating packages, and unset when done:

.. code-block:: console

kayobe playbook run $KAYOBE_CONFIG_PATH/ansible/ceph-enter-maintenance.yml --limit <host>
kayobe overcloud host package update --packages "*" --limit <host>
kayobe playbook run $KAYOBE_CONFIG_PATH/ansible/reboot.yml -l <host>
kayobe playbook run $KAYOBE_CONFIG_PATH/ansible/ceph-exit-maintenance.yml --limit <host>

**Always** reconfigure hosts in small batches or one-by-one. Check the Ceph
state after each host configuration. Ensure all warnings and errors are
resolved before moving on.

If the host is a hypervisor, enable the Nova compute service.

.. code-block:: console
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