doc/mgr/nfs: document that nfs exports related mgr call requirements

A recent change in the mgr/nfs module should enable the functioning
of export management commands/API calls as long as the rados namespaces
and objects have been already established. Document this fact, noting
that now only the `ceph nfs cluster ...` calls *require* an
orchestration module.

Signed-off-by: John Mulligan <jmulligan@redhat.com>

diff --git a/doc/mgr/nfs.rst b/doc/mgr/nfs.rst
index 79e6c29be9f99b88a0676420caecae8c58f6610b..777e2ee8173b20cda0e62f59d47d7eaed6de52c4 100644 (file)
--- a/doc/mgr/nfs.rst
+++ b/doc/mgr/nfs.rst
@@ -533,20 +533,26 @@ The NFS log level can be adjusted using `nfs cluster config set` command (see :r
 Manual Ganesha deployment
 =========================
 
-It may be possible to deploy and manage the NFS ganesha daemons manually
-instead of allowing cephadm or rook to do so.
+It may be possible to deploy and manage the NFS ganesha daemons without
+orchestration frameworks such as cephadm or rook.
 
 .. note:: Manual configuration is not tested or fully documented; your
           mileage may vary. If you make this work, please help us by
           updating this documentation.
 
-Known issues
+Limitations
 ------------
 
-* The ``mgr/nfs`` module enumerates NFS clusters via the orchestrator API; if NFS is
-  not managed by the orchestrator (e.g., cephadm or rook) then this will not work.  It
-  may be possible to create the cluster, mark the cephadm service as 'unmanaged', but this
-  is awkward and not ideal.
+If no orchestrator module is enabled for the Ceph Manager the NFS cluster
+management commands, such as those starting with ``ceph nfs cluster``, will not
+function. However, commands that manage NFS exports, like those prefixed with
+``ceph nfs export`` are expected to work as long as the necessary RADOS objects
+have already been created. The exact RADOS objects required are not documented
+at this time as support for this feature is incomplete. A curious reader can
+find some details about the object by reading the source code for the
+``mgr/nfs`` module (found in the ceph source tree under
+``src/pybind/mgr/nfs``).
+
 
 Requirements
 ------------