Openstack Kilo Nova-Docker:P of contanier will be lost after stop/start contanier via docker cli

[Xiao Li Xu]

Bug description:
  [Summary]
When stop container and restart container via docker cli (docker stop xx / docker start xx) on compute node, ip of this container will be lost. for detail pls refer following logs.
  [Topo]
  Unbuntu Kilo 14.04 OS , Kilo docker setup , 1 controller ,2 network node,6 computenode

  [Reproduceable or not]
  Can be reproduced,

  [Recreate Steps]

Meanwhile, we also tried these two ways to check if the container can get ip or not,
a, launch a new container, can get ip successfully;
b, stop and re-start via nova stop xxx / nova start xxx , container can get ip successfully.

# Steps:
1, Build up a openstack & docker setup based on Ubuntu 14.04 trusty;
2, 1 controller, 2 network node and 7 computer node ;
3, Launch docker containers;

root@quasarucn3:~# nova list
+--------------------------------------+--------------+---------+------------+-------------+---------------+
| ID | Name | Status | Task State | Power State | Networks |
+--------------------------------------+--------------+---------+------------+-------------+---------------+
| ae6d1bc5-635a-453d-8cec-143a2b8240f6 | d7 | ACTIVE | - | Running | vmn=12.1.1.20 |
| 914c2f05-b56a-4689-9c1b-63f5bb36c7db | d8_sdn1 | ACTIVE | - | Running | vmn=12.1.1.22 |
| 925df284-3339-4af7-86e9-f66c41d947ce | d9_220 | ACTIVE | - | Running | vmn=12.1.1.26 |
| 518f7d49-07fb-474b-b18c-647d558562ea | d9_sdnve | ACTIVE | - | Running | vmn=12.1.1.25 |
| 59b3512a-8f6b-443d-ae1a-ca1ff615dba4 | leo_ubuntu | ACTIVE | - | Running | vmn=12.1.1.15 | <<<<<<<<<<<<<<<<<< container launched.
+--------------------------------------+--------------+---------+------------+-------------+---------------+
root@quasarucn3:~#

root@quasarsdn2:~# docker ps | grep 59b3512a-8f6b-443d-ae1a-ca1ff615dba4
90a1510e9dfd leo_ubuntu "/usr/sbin/sshd -D" 2 days ago Up 37 seconds nova-59b3512a-8f6b-443d-ae1a-ca1ff615dba4
root@quasarsdn2:~#

root@quasarsdn2:~# docker exec -i -t 90a1510e9dfd /bin/sh
# ifconfig
lo Link encap:Local Loopback
          inet addr:127.0.0.1 Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING MTU:65536 Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)

nsaeda5cee-7b Link encap:Ethernet HWaddr fa:16:3e:6c:88:96
          inet addr:12.1.1.15 Bcast:0.0.0.0 Mask:255.255.255.0 <<<<<<<<<<<<<<<<<<< ip got.
          inet6 addr: fe80::f816:3eff:fe6c:8896/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
          RX packets:8 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:648 (648.0 B) TX bytes:648 (648.0 B)

#
#

root@quasarsdn2:~# docker stop 90a1510e9dfd
90a1510e9dfd

root@quasarsdn2:~# docker start 90a1510e9dfd <<<<<<<<<<< stop then restart container.
90a1510e9dfd

root@quasarsdn2:~# docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
c3464a45cd94 cirros "/sbin/init" 47 hours ago Up 23 minutes nova-ae6d1bc5-635a-453d-8cec-143a2b8240f6
90a1510e9dfd leo_ubuntu "/usr/sbin/sshd -D" 47 hours ago Up 16 seconds nova-59b3512a-8f6b-443d-ae1a-ca1ff615dba4
root@quasarsdn2:~#

root@quasarsdn2:~# docker exec -i -t 90a1510e9dfd /bin/sh
# ifconfig
# ifconfig <<<<<<<<<< no ip can be seen after container rebooting.
#

  [Log]
There is no error, this is docker related issue

[Eugene Nikanorov (enikanorov)]

Seems to be invalid for neutron

[Xiao Li Xu (xiao-li-xu)]

change it to nova-docker