node rsync -s switch

confluent_client/bin/nodersync

@@ -48,6 +48,8 @@ def run():
                           'prompting if over the threshold')   
     argparser.add_option('-l', '--loginname', type='str',
                          help='Username to use when connecting, defaults to current user.')
+    argparser.add_option('-s', '--substitutename',
+                         help='Use a different name other than the nodename for rsync')
     argparser.add_option('-f', '-c', '--count', type='int', default=168,
                          help='Number of nodes to concurrently rsync')
     # among other things, FD_SETSIZE limits.  Besides, spawning too many
@@ -63,8 +65,14 @@ def run():
     c = client.Command()
     cmdstr = ' '.join(args[:-1])
     cmdstr = 'rsync -av --info=progress2 ' + cmdstr
-    if options.loginname:
-        cmdstr += ' {}@'.format(options.loginname) + '{node}:' + targpath
+    if options.loginname and options.substitutename: 
+        cmdstr += ' {}@'.format(options.loginname) + '{node}' + '{}:'.format(options.substitutename) + targpath
+    elif options.loginname and not options.substitutename:
+        cmdstr += ' {}@'.format(options.loginname) + '{node}:' + targpath  
+    elif options.substitutename and not options.loginname:
+        subname = options.substitutename
+        if '{' not in subname:
+            cmdstr += ' {node}' + '{}:'.format(options.substitutename)  + targpath
     else:
         cmdstr += ' {node}:' + targpath
 

confluent_client/doc/man/nodersync.ronn

@@ -16,6 +16,9 @@ noderange. This will present progress as percentage for all nodes.
   Specify how many rsync executions to do concurrently.  If noderange
   exceeds the count, then excess nodes will wait until one of the
   active count completes. 
+
+* `-s`, `--substitutename`:
+  'Use a different name other than the nodename for rsync'
   
 * `-m MAXNODES`, `--maxnodes=MAXNODES`:
   Specify a maximum number of nodes to run rsync to, prompting if over the