* :ref:`pre-update_container-status`: Ensure container status
* :ref:`pre-update_openstack-endpoints`: Check connectivity to various OpenStack services
* :ref:`pre-update_package-version`: package-version
* :ref:`pre-update_repos`: Check correctness of current repositories
* :ref:`pre-update_system-encoding`: System encoding
* :ref:`pre-update_undercloud-heat-purge-deleted`: Verify heat-manage purge_deleted is enabled in crontab
* :ref:`pre-update_undercloud-ipa-server-check`: Verify that the IPA server has the right permissions and ACI
* :ref:`pre-update_undercloud-service-status`: Verify undercloud services state before running update or upgrade
