Configuring Cinder to Integrate with Ceph

Modify the Cinder configuration file on OpenStack to integrate Cinder with Ceph.

1. On the OpenStack storage node (Cinder node), modify the /etc/cinder/cinder.conf file.
   1. Open the file.

      vi /etc/cinder/cinder.conf

   2. Press i to enter the insert mode and modify the file as follows:

      [DEFAULT] 
      ... 
      #enabled_backends = lvm 
      enabled_backends = ceph 
       
      [ceph] 
      volume_driver = cinder.volume.drivers.rbd.RBDDriver 
      volume_backend_name = ceph 
      rbd_pool = volumes 
      rbd_ceph_conf = /etc/ceph/ceph.conf 
      rbd_flatten_volume_from_snapshot = false 
      rbd_max_clone_depth = 5 
      rbd_store_chunk_size = 4 
      rados_connect_timeout = -1 
      glance_api_version = 2 
      rbd_user = cinder 
      rbd_secret_uuid = b3d5fee6-839c-482e-b244-668bad7128a9

      

      • When configuring the enabled_backends parameter, comment out or delete other enabled_backends configuration items.

      • Change the value of rbd_secret_uuid to the UUID generated when a key is added to libvirt.

   3. Press Esc to exit the insert mode. Type :wq! and press Enter to save the file and exit.
2. On the OpenStack storage node (Cinder node), restart the cinder-volume service.

   systemctl restart openstack-cinder-volume.service