To enable Vitastor support in an OpenStack installation:

  • Install vitastor-client, patched QEMU and libvirt packages from Vitastor DEB or RPM repository
  • Use patches/nova-21.diff or patches/nova-23.diff to patch your Nova installation. Patch 21 fits Nova 21-22, patch 23 fits Nova 23-24.
  • Install patches/cinder-vitastor.py as ..../cinder/volume/drivers/vitastor.py
  • Define a volume type in cinder.conf (see below)
  • Block network access from VMs to Vitastor network (to OSDs and etcd), because Vitastor doesn’t support authentication
  • Restart Cinder and Nova

Cinder volume type configuration example:

[DEFAULT]
enabled_backends = lvmdriver-1, vitastor-testcluster
# ...

[vitastor-testcluster]
volume_driver = cinder.volume.drivers.vitastor.VitastorDriver
volume_backend_name = vitastor-testcluster
image_volume_cache_enabled = True
volume_clear = none
vitastor_etcd_address = 192.168.7.2:2379
vitastor_etcd_prefix =
vitastor_config_path = /etc/vitastor/vitastor.conf
vitastor_pool_id = 1
image_upload_use_cinder_backend = True

To put Glance images in Vitastor, use volume-backed images, although the support has not been verified yet.