vfs_ceph — Utilize features provided by CephFS
vfs objects = ceph
This VFS module is part of the samba(8) suite.
The vfs_ceph VFS module exposes
CephFS specific features for use by Samba.
Ceph is a distributed network file system designed to provide excellent performance, reliability, and scalability. This is a shared library allowing applications to access a Ceph distributed file system via a POSIX-like interface.
This module can be combined with other modules, but it
should be the last module in the vfs objects
list. Modules added to this list to the right of the ceph
entry may not have any effect at all.
vfs_ceph performs mapping between Windows and
POSIX Access Control Lists (ACLs). To ensure correct processing
and enforcement of POSIX ACLs, the following Ceph configuration
parameters are automatically applied:
client acl type = posix_aclfuse default permissions = false
vfs_ceph requires that the underlying share
path is a Ceph filesystem.
[share]
vfs objects = ceph
path = /non-mounted/cephfs/path
kernel share modes = no
Since vfs_ceph does not require a filesystem
mount, the share path is treated differently:
it is interpreted as an absolute path within the Ceph filesystem
on the attached Ceph cluster.
In a ctdb cluster environment where ctdb manages Samba,
CTDB_SAMBA_SKIP_SHARE_CHECK=yes must be
configured to disable local share path checks, otherwise ctdb
will not reach a healthy state.
Note that currently kernel share modes have
to be disabled in a share running with the CephFS vfs module for
file serving to work properly.
Allows one to define a ceph configfile to use. Empty by default.
Example: ceph:config_file = /etc/ceph/ceph.conf
Allows one to explicitly set the client ID used for the CephFS mount handle. Empty by default (CephFS uses the process id).
Example: ceph:user_id = samba