For QEMU, when using '-blockdev', there is no way to specify the
keyring file like was possible with '-drive', so it has to be set in
the corresponding Ceph configuration file. As it applies to all images
on the storage, it also is the most natural place for the setting.
Signed-off-by: Fiona Ebner <f.ebner@proxmox.com>
7684225bac