Hi, We are currently preparing to upgrade a kolla-ansible deployed OpenStack cluster and were wondering if it is possible to upgrade individual services independently of each other, for example to upgrade one service at a time to Ussuri while still using kolla-ansible to deploy and reconfigure the Train versions of the other services. Our idea was that either the Ussuri release of kolla-ansible is used to deploy Train and Ussuri services (with properly migrated configuration), or that two different releases and configurations are used for the two sets of services in the same deployment. Does anyone have experience if this is practical or even possible? Thank you in advance, Erik _____ Erik Panter Systementwickler | Infrastruktur Mittwald CM Service GmbH & Co. KG Königsberger Straße 4-6 32339 Espelkamp Tel.: 05772 / 293-900 Fax: 05772 / 293-333 Mobil: 0151 / 12345678 e.panter@mittwald.de https://www.mittwald.de Geschäftsführer: Robert Meyer, Florian Jürgens St.Nr.: 331/5721/1033, USt-IdNr.: DE814773217, HRA 6640, AG Bad Oeynhausen Komplementärin: Robert Meyer Verwaltungs GmbH, HRB 13260, AG Bad Oeynhausen Informationen zur Datenverarbeitung im Rahmen unserer Geschäftstätigkeit gemäß Art. 13-14 DSGVO sind unter www.mittwald.de/ds abrufbar.