Cephfs authorize command fails with a cap error

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Environment

Ceph 12.2.12+git.1568024032.02236657ca-2.39.1

Situation

When attempting to authorize a cephfs client using for example:

ceph fs authorize cephfs client.suse /some_dir rw

This fails with:

Error EINVAL: unknown cap type '/some_dir'

Resolution

The command only simplifies the creation of the auth key required for the specified client access. Workaround then is to instead manually create the key for the client. For example:

ceph auth get-or-create client.my_cephfs_client mon 'allow r' mds 'allow r, allow rw path=/some_dir' osd 'allow rwx pool=cephfs_data' -o client.<my_cephfs_client>.key

The above example assumes the relevant CephFS pool is "cephfs_data" (the default data pool for CephFS), and that the client (my_cephfs_client) requires RW access to the specified CephFS directory (the "path=" statement).

Cause

This is due to a bug that should be fixed when Ceph 12.2.13 is released.

Disclaimer

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