Too strong permission for RGW in OpenStack

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Hi.

We have ceph cluster with a lot of users who use S3 and RBD protocols. Now we need to give access to one use group with OpenStack, so they run RGW on their side, but we have to set "ceph caps" for this RGW. In the documentation for OpenStack is following

ceph auth get-or-create client.radosgw osd 'allow rwx' mon 'allow rwx' -o /etc/ceph/ceph.client.radosgw.keyring

which means full permission. Can we limit the permission somehow so RGW from OpenStack cannot reach the data of other users? Would it be enough if RGW has only some swift account?

I would appreciate any advice.

Best regards,
Michal Strnad

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