fix the passing of collector list to openstack_config script

we expect collector_list to be a list of 2 collectors, when
there are more than 1 collector configured. corrected the way
the list was being passed to openstack_config script.

Change-Id: I64e51874c08f4f96c763b46eb94b1caa95bfd8ee
Closes-Bug: #1679859

fabfile/tasks/issu_process.py

@@ -41,12 +41,15 @@ def issu_contrail_switch_collector_in_compute_node(*args):
             for i in range(0, max_collectors):
                 collector_list += "%s:8086 " %(hstr_to_ip(get_control_host_string(env.roledefs['collector'][host_num])))
                 host_num = (host_num + 1) % num_collectors
-            import glob
-            file_list = glob.glob('/etc/contrail/contrail-tor-agent*.conf')
+            file_list = sudo('ls /etc/contrail/contrail-tor-agent*')
+            if file_list.succeeded:
+                file_list = file_list.split()
+            else:
+                file_list = []
             file_list.append('/etc/contrail/contrail-vrouter-agent.conf')
             for cfile in file_list:
-                run('openstack-config --set %s DEFAULT collectors %s' % (cfile, collector_list))
-            run('openstack-config --set /etc/contrail/contrail-vrouter-nodemgr.conf COLLECTOR server_list %s' % (collector_list))
+                run('openstack-config --set %s DEFAULT collectors "%s"' % (cfile, collector_list))
+            run('openstack-config --set /etc/contrail/contrail-vrouter-nodemgr.conf COLLECTOR server_list "%s"' % (collector_list))
 
 @task
 @roles('compute')