diff --git a/conf/container.conf b/conf/container.conf
index 1445173..e235da1 100644
--- a/conf/container.conf
+++ b/conf/container.conf
@@ -23,7 +23,8 @@ lxc.utsname = %HOSTNAME%
 
 lxc.network.type = veth
 lxc.network.name = eth0
-lxc.network.veth.pair = %LXCNAME%
+# veth.pair is limited in 16 bytes
+lxc.network.veth.pair = %VETHPAIR%
 lxc.network.script.up = Bridge=docklet-br VLANID=%VLANID% %LXCSCRIPT%/lxc-ifup
 lxc.network.script.down = Bridge=docklet-br %LXCSCRIPT%/lxc-ifdown
 lxc.network.ipv4 = %IP%
diff --git a/src/container.py b/src/container.py
index 4843b9a..356f915 100755
--- a/src/container.py
+++ b/src/container.py
@@ -4,7 +4,7 @@ import subprocess, os, json
 import imagemgr
 from log import logger
 import env
-from lvmtool import *
+from lvmtool import sys_run, check_volume
 
 class Container(object):
     def __init__(self, addr, etcdclient):
@@ -21,7 +21,7 @@ class Container(object):
         self.lxcpath = "/var/lib/lxc"
         self.imgmgr = imagemgr.ImageMgr()
 
-    def create_container(self, lxc_name, username, user_info, clustername, clusterid, hostname, ip, gateway, vlanid, image):
+    def create_container(self, lxc_name, username, user_info, clustername, clusterid, containerid, hostname, ip, gateway, vlanid, image):
         logger.info("create container %s of %s for %s" %(lxc_name, clustername, username))
         try:
             user_info = json.loads(user_info) 
@@ -45,31 +45,41 @@ class Container(object):
             sys_run("mkdir -p /var/lib/lxc/%s" % lxc_name)
             logger.info("generate config file for %s" % lxc_name)
             
-            if os.path.exists(self.confpath+"/lxc.custom.conf"):
-                conffile = open(self.confpath+"/lxc.custom.conf",'r')
-            else:
-                conffile = open(self.confpath+"/container.conf",'r')
+            def config_prepare(content):
+                content = content.replace("%ROOTFS%",rootfs)
+                content = content.replace("%HOSTNAME%",hostname)
+                content = content.replace("%IP%",ip)
+                content = content.replace("%GATEWAY%",gateway)
+                content = content.replace("%CONTAINER_MEMORY%",str(memory))
+                content = content.replace("%CONTAINER_CPU%",str(cpu))
+                content = content.replace("%FS_PREFIX%",self.fspath)
+                content = content.replace("%USERNAME%",username)
+                content = content.replace("%CLUSTERID%",str(clusterid))
+                content = content.replace("%LXCSCRIPT%",env.getenv("LXC_SCRIPT"))
+                content = content.replace("%LXCNAME%",lxc_name)
+                content = content.replace("%VLANID%",str(vlanid))
+                content = content.replace("%CLUSTERNAME%", clustername)
+                content = content.replace("%VETHPAIR%", str(clusterid)+'-'+str(containerid))
+                return content
 
+            conffile = open(self.confpath+"/container.conf", 'r')
             conftext = conffile.read()
             conffile.close()
-            conftext = conftext.replace("%ROOTFS%",rootfs)
-            conftext = conftext.replace("%HOSTNAME%",hostname)
-            conftext = conftext.replace("%IP%",ip)
-            conftext = conftext.replace("%GATEWAY%",gateway)
-            conftext = conftext.replace("%CONTAINER_MEMORY%",str(memory))
-            conftext = conftext.replace("%CONTAINER_CPU%",str(cpu))
-            conftext = conftext.replace("%FS_PREFIX%",self.fspath)
-            conftext = conftext.replace("%USERNAME%",username)
-            conftext = conftext.replace("%CLUSTERID%",str(clusterid))
-            conftext = conftext.replace("%LXCSCRIPT%",env.getenv("LXC_SCRIPT"))
-            conftext = conftext.replace("%LXCNAME%",lxc_name)
-            conftext = conftext.replace("%VLANID%",str(vlanid))
-            conftext = conftext.replace("%CLUSTERNAME%", clustername)
+            conftext = config_prepare(conftext)
 
             conffile = open("/var/lib/lxc/%s/config" % lxc_name,"w")
             conffile.write(conftext)
             conffile.close()
 
+            if os.path.isfile(self.confpath+"/lxc.custom.conf"):
+                conffile = open(self.confpath+"/lxc.custom.conf", 'r')
+                conftext = conffile.read()
+                conffile.close()
+                conftext = config_prepare(conftext)
+                conffile = open("/var/lib/lxc/%s/config" % lxc_name, 'a')
+                conffile.write(conftext)
+                conffile.close()
+
             #logger.debug(Ret.stdout.decode('utf-8'))
             logger.info("create container %s success" % lxc_name)
 
diff --git a/src/vclustermgr.py b/src/vclustermgr.py
index c09441b..296fc63 100755
--- a/src/vclustermgr.py
+++ b/src/vclustermgr.py
@@ -84,7 +84,7 @@ class VclusterMgr(object):
             lxc_name = username + "-" + str(clusterid) + "-" + str(i)
             hostname = "host-"+str(i)
             logger.info ("create container with : name-%s, username-%s, clustername-%s, clusterid-%s, hostname-%s, ip-%s, gateway-%s, image-%s" % (lxc_name, username, clustername, str(clusterid), hostname, ips[i], gateway, image_json))
-            [success,message] = onework.create_container(lxc_name, username, user_info , clustername, str(clusterid), hostname, ips[i], gateway, str(vlanid), image_json)
+            [success,message] = onework.create_container(lxc_name, username, user_info , clustername, str(clusterid), str(i), hostname, ips[i], gateway, str(vlanid), image_json)
             if success is False:
                 logger.info("container create failed, so vcluster create failed")
                 return [False, message]
@@ -124,7 +124,7 @@ class VclusterMgr(object):
         onework = workers[random.randint(0, len(workers)-1)]
         lxc_name = username + "-" + str(clusterid) + "-" + str(cid)
         hostname = "host-" + str(cid)
-        [success, message] = onework.create_container(lxc_name, username, user_info, clustername, clusterid, hostname, ip, gateway, str(vlanid), image_json)
+        [success, message] = onework.create_container(lxc_name, username, user_info, clustername, clusterid, str(cid), hostname, ip, gateway, str(vlanid), image_json)
         if success is False:
             logger.info("create container failed, so scale out failed")
             return [False, message]
diff --git a/web/webViews/dockletrequest.py b/web/webViews/dockletrequest.py
index bb9e283..299444a 100644
--- a/web/webViews/dockletrequest.py
+++ b/web/webViews/dockletrequest.py
@@ -1,5 +1,4 @@
 import requests
-import json
 from flask import abort, session
 from webViews.log import logger
 
@@ -25,9 +24,7 @@ class dockletRequest():
 
     @classmethod
     def unauthorizedpost(self, url = '/', data = None):
-        data = dict(data)
-        data_log = {'user': data['user']}
-        logger.info("Docklet Unauthorized Request: data = %s, url = %s" % (data_log, url))
+        logger.info("Docklet Unauthorized Request: data = %s, url = %s" % (data, url))
         result = requests.post(endpoint + url, data = data).json()
         logger.info("Docklet Unauthorized Response: result = %s, url = %s"%(result, url))
         return result