Nova-Docker:container lost the ip address withouy dhcp assignment ip if docker kill / docker start

[gavin.nie]

OS:Ubuntu 14.04
openstack KILO with nova-docker

Problem:Nova-Docker:container lost the ip address if docker kill / docker start (DHCP assighend)

Steps:
1 Bring up the ubuntu kilo setup
2 Bring up the ubuntu docker setup
3 select one container
root@quasarucn1:~# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
6fff17927b94 leo_ubuntu "/usr/sbin/sshd -D" About an hour ago Up 3 seconds nova-a2d1d62e-7fca-4ede-8ce6-98886b0c5036

4 Kill the docker container
root@quasarucn1:~# docker kill -s 6fff17927b94

5 check the docker status
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
6fff17927b94 leo_ubuntu "/usr/sbin/sshd -D" About an hour ago Exited (137) 2 minutes ago nova-a2d1d62e-7fca-4ede-8ce6-98886b0c5036

6 then start the docker and check the status
root@quasarucn1:~# docker start 6fff17927b94
6fff17927b94

7 check the status
root@quasarucn1:~# docker ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
6fff17927b94 leo_ubuntu "/usr/sbin/sshd -D" About an hour ago Up 3 seconds nova-a2d1d62e-7fca-4ede-8ce6-98886b0c5036

8 check the container ip
root@quasarucn1:~# docker exec -i -t 6fff17927b94 /bin/bash
root@instance-00000154:/# ifconfig
ip lost and can not get the ip address again