adding docker options

example.yml

@@ -2,6 +2,7 @@
 # Modify these to suit your needs.
 image: "gizmonic.cs.umd.edu:8080/baseline"
 image_cmd: "/usr/bin/tail -f /etc/issue"
+docker_opts: ""
 
 # Here's how you define the network you want.
 # The topology can be "mesh" or "star". The

start_testbed.py

@@ -121,9 +121,11 @@ def start_node(base_name,i):
                'run',
                '-d',
                '--name',
-               name,
-               conf['image']
+               name
               ]
+    if conf['docker_opts']:
+        command.extend(conf['docker_opts'].split())
+    command.append(conf['image'])
     command.extend(conf['image_cmd'].split())
     retval = subprocess.call(command)