doc: Add troubleshooting section

* Mention glusterfs versions which requires additional steps to allow
  non-root users to mount the volume.
* Add note on tested platform and python versions.
* Remove TODOs and add them as issues on GitHub

Change-Id: I36a63ff2b9f98de82c2fd58542584565dab7dda0
Signed-off-by: Prashanth Pai <ppai@redhat.com>

1 files changed, 48 insertions, 0 deletions

diff --git a/doc/troubleshooting.rst b/doc/troubleshooting.rst
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+Troubleshooting
+===============
+
+Mount GlusterFS volume as non-root user
+---------------------------------------
+
+.. versionchanged:: 3.7.3
+    GlusterFS versions prior to version **3.7.3** requires the following
+    additional steps to allow non-root users to mount the volume over libgfapi.
+    Following these steps is not required for recent versions i.e >= 3.7.3
+
+One can follow the following steps to allow a non-root user to virtual mount
+a GlusterFS volume over libgfapi. This requires a configuration change which
+enables GlusterFS server to accept client connections from non-priveledged
+ports.
+
+.. code-block:: console
+
+    # gluster volume set <volname> server.allow-insecure on
+    # gluster volume stop <volname>
+    # gluster volume start <volname>
+
+Edit `/etc/glusterfs/glusterd.vol` or `/usr/local/etc/glusterfs/glusterd.vol`
+and set:
+
+.. code-block:: aconf
+
+    option rpc-auth-allow-insecure on
+
+Restart glusterd service:
+
+.. code-block:: console
+
+    # service glusterd restart
+
+Further, use `chown` and/or `chmod` commands to change permissions on mount
+point or required directories to allow non-root access to appropriate users.
+
+If you do not provide a custom location for log file, you might see an error
+similar to the following during mount.
+
+.. code-block:: python
+
+   LibgfapiException: glfs_set_logging(None, 7) failed: Permission denied
+
+In such case, provide a log file path that has appropriate write permissions
+or change permission of default log location i.e `/var/log/glusterfs` or
+`/usr/local/var/log/glusterfs` accordingly.