Hi, This is a call to Storage vendors and application developers that, with the excitement of the Stein release, may have missed the first cinderlib release [1][2] under the OpenStack umbrella that happened on the 16th. Cinderlib is doing cycle trailing releases. Using Cinder drivers out of OpenStack has been a frequent request by developers wanting to leverage Cinder's storage management capabilities without all the extra features that Cinder provides, such as quotas, replication, migrations, etc. The answer from the Cinder team has been to create a Python library that provides an object oriented abstraction around Cinder’s storage drivers to allow their direct usage without running any of the Cinder services (API, Scheduler, Volume) or surrounding services (KeyStone, MySQL, RabbitMQ). Even though cinderlib has just been released as a Tech Preview, there are already 2 projects using it: - oVirt: in the Managed Block Storage functionality [3] - Ember-CSI: providing storage for Kubernetes, Mesos, Docker swarm, cloud foundry, etc. [4] This means that with a single Cinder driver vendors can support multiple platforms: - OpenStack - oVirt - Containers: Kubernetes, Mesos, Docker swarm, cloud foundry, etc. Cinderlib works around the limitations that prevented direct usage of the drivers. One of these are driver "particularities", and that's why we recommend vendors that want to ensure compatibility with the library to run the cinderlib functional tests at the gate. These tests take but a minute to run. We have some documentation under review [5] going over the process of doing manual validation of a driver, running the tests as jobs of the cinderlib project, or as an additional step of the Cinder tempest run. The cinderlib project currently has 2 backends running the functional tests, LVM and Ceph, and we have patches up to run them as part of the LVM [6] and Ceph [7] Cinder jobs as well. If you are interested in using project, validating your driver, or just have some feedback or questions feel free to drop me an email or DM me (twitter @geguileo) and I'll be more than happy help. If you are going to the Open Infrastructure Summit we can meet in person, and if you feel adventurous we can even do the manual validation. Cheers, Gorka. [1]: https://docs.openstack.org/cinderlib/latest/index.html [2]: https://pypi.org/project/cinderlib/ [3]: https://ovirt.org/develop/release-management/features/storage/cinderlib-inte... [4]: https://ember-csi.io [5]: https://review.opendev.org/#/c/651880/ [6]: https://review.opendev.org/#/c/620671/ [7]: https://review.opendev.org/#/c/645182/