doc: Added CHAP cofiguration instructions for iSCSI

Added details to specify the CHAP username and password while
discovering/login the iSCSI target.

Signed-off-by: Ashish Singh <assingh@redhat.com>
(cherry picked from commit 2a5755e0767108aefa6ccfb8a85e5d63e8c04fe8)

diff --git a/doc/rbd/iscsi-initiator-linux.rst b/doc/rbd/iscsi-initiator-linux.rst
index 386a68fa34048ab9df53e0988b6ee68941617e20..3fd91670ddd8886c2e0e1e49cc2932ad444ff076 100644 (file)
--- a/doc/rbd/iscsi-initiator-linux.rst
+++ b/doc/rbd/iscsi-initiator-linux.rst
@@ -53,6 +53,9 @@ Install the iSCSI initiator and multipath tools:
 
 **iSCSI Discovery and Setup:**
 
+#. If CHAP was setup on the iSCSI gateway, provide a CHAP username and
+   password by updating the ``/etc/iscsi/iscsid.conf`` file accordingly.
+
 #. Discover the target portals:
 
    ::