Hi,
I would like to provide access to a bunch of large files (bio sequence
databases) to our cloud users. Putting the files in a RBD instance
requires special care if several VMs need to access the files; creating
an individual RBD snapshot for each instance requires more effort in the
cloud setup.
I'm currently thinking about given the users read-only access to a
CephFS subdirectory. The Jewel release includes a path based access
restriction for CephFS, which fits nicely into the concept. But the
documentation does not state whether it is possible to have a read-only
CephFS mount point. Is it sufficient to skip the write flag from the
user's capabilities, e.g.
caps: [mds] allow rp, allow rp path=/foo
caps: [mon] allow r
caps: [osd] allow r pool=data
Regards,
Burkhard
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