Cephfs authorize command fails with a cap error

This document (000001014) is provided subject to the disclaimer at the end of this document.


Ceph 12.2.12+git.1568024032.02236657ca-2.39.1


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'


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).


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


This Support Knowledgebase provides a valuable tool for SUSE customers and parties interested in our products and solutions to acquire information, ideas and learn from one another. Materials are provided for informational, personal or non-commercial use within your organization and are presented "AS IS" WITHOUT WARRANTY OF ANY KIND.

  • Document ID:000001014
  • Creation Date: 23-Oct-2020
  • Modified Date:23-Oct-2020
    • SUSE Enterprise Storage

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