It is possible to configure Cinder and Ceph to use different Ceph users for different Ceph pools and Cinder volume types. Or to have the nova boot volumes and cinder block volumes controlled by different users.
In the case of multiple Ceph users, it is required to adopt the keyring extension in the tvault-contego.conf inside the Ceph block.
The following example will try all files with the extension keyring that are located inside /etc/ceph to access the Ceph cluster for a Trilio related task.
It is possible to configure Cinder to have multiple configurations and keyrings for CEPH.
In this case, the Trilio Datamover file needs to be extended with the CEPH information.
For Trilio to be able to work in such an environment it is required to put copies of each of these configurations and keyrings into a separate directory, which is then made known to the Trilio Datamover inside a [ceph] block in the tvault-contego.conf.
A tvault-contego.conf file with the extended [ceph] block would look like this.
Ceph is the most common OpenSource solution to provide block storage through OpenStack Cinder.
Ceph is a very flexible solution. The possibilities of Ceph require additional steps to the Trilio solution.