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How to do it...

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:

We have already configured the following options to enable volume attachment:

        rbd_user=cinder        rbd_secret_uuid= e279566e-bc97-46d0-bd90-68080a2a0ad8

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 list

Attach the volume to the instance:

# nova volume-attach 31000c20-5847-48eb-b2e3-6b681f5df46c 21bb3f31-6f9e-4d26-9afd-5eec3f450034# cinder list

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