Hi David,

I am using Samba 4.6.7 (shipped with Ubuntu 17.10). I've got it working now by copying the ceph.client.admin.keyring to /etc/ceph (I'm very unhappy with that). Which Samba Version & Linux Distribution are using? Are you using quotas on subdirectories and are they applied when you export the subdirectory via samba?

Regards Felix


On 12/21/2017 06:19 PM, David Disseldorp wrote:
Hi Felix,

On Thu, 21 Dec 2017 14:16:23 +0100, Felix Stolte wrote:

Hello folks,

is anybody using the vfs_ceph module for exporting cephfs as samba
shares?
Yes, alongside Luminous.
Which version of Samba are you using? Make sure it includes the fix for
https://bugzilla.samba.org/show_bug.cgi?id=12911 .

We are running ceph jewel with cephx enabled. Manpage of
vfs_ceph only references the option ceph:config_file. How do I need to
configure my share (or maybe ceph.conf)?

log.smbd:  '/' does not exist or permission denied when connecting to
[vfs] Error was Transport endpoint is not connected

I have a user ctdb with keyring file /etc/ceph/ceph.client.ctdb.keyring
with permissions:

      caps: [mds] allow rw
      caps: [mon] allow r    caps: [osd] allow rwx
pool=cephfs_metadata,allow rwx pool=cephfs_data

I can mount cephfs with cephf-fuse using the id ctdb and its keyfile.

My share definition is:

[vfs]
      comment = vfs
      path = /
      read only = No
      vfs objects = acl_xattr ceph
      ceph:user_id = ctdb
      ceph:config_file = /etc/ceph/ceph.conf
Your configuration looks fine - can you confirm that the *mapped* Samba
user is permitted access to the root of the CephFS filesystem? Have you
tried using ceph-fuse as the mapped user? If you're still running into
problems, feel free to raise a ticket at bugzilla.samba.org and assign
it to me.

Cheers, David

--
Felix Stolte
IT-Services
Tel.: +49 2461 61-9243
Email: f.sto...@fz-juelich.de

Forschungszentrum Jülich GmbH
52425 Jülich
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Karsten Beneke (stellv. Vorsitzender), Prof. Dr.-Ing. Harald Bolt,
Prof. Dr. Sebastian M. Schmidt


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