In order to attach the Ceph RBD to OpenStack instances, we should configure the nova component of OpenStack by adding the rbd
user and uuid information that it needs to connect to the Ceph cluster. To do this, we need to edit /etc/nova/nova.conf
on the OpenStack node and perform the steps that are given in the following section.
The cinder service that we configured in the last recipe creates volumes on Ceph, however, to attach these volumes to OpenStack instances, we need to configure Nova:
Navigate to the Options defined in nova.virt.libvirt.volume section and add the following lines of code (replace the secret
uuid
with your environments value):rbd_user=cinder rbd_secret_uuid= bb90381e-a4c5-4db7-b410-3154c4af486e
Restart the OpenStack nova services:
# service openstack-nova-compute restart
To test this configuration, we will attach the cinder volume to an OpenStack instance. List the instance and volumes to get the ID:
# nova list # cinder...