OpenStack

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 [https://docs.openstack.org/cinder/pike/admin/blockstorage-volume-backed-image.html](volume-backed images), although the support has not been verified yet.

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