[R2.20-Build 26]: dual stack-IPv4+IPv6 for docker instances not working

[alok kumar]

when VN is dual stack supporting both IPv4 and IPv6 then instances launched on docker host could get both configuration correctly.

sometime I see there is no interface configured in the instances.

in one case it was configured but only with IPv6.

root@nodec62:/usr/lib/python2.7/dist-packages/novadocker/virt/docker# docker exec 631509521f1b 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)

ns00b5bbbf Link encap:Ethernet HWaddr 02:00:b5:bb:bf:df
          inet6 addr: fe80::b5ff:febb:bfdf/64 Scope:Link
          inet6 addr: 2002:8192:5666:1::3/64 Scope:Global
          UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
          RX packets:23 errors:0 dropped:0 overruns:0 frame:0
          TX packets:7 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:1618 (1.6 KB) TX bytes:666 (666.0 B)

root@nodec62:/usr/lib/python2.7/dist-packages/novadocker/virt/docker# docker ps -l
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
631509521f1b ubuntu-traffic-docker:latest "/sbin/my_init" About a minute ago Up About a minute nova-966e8570-8325-4575-a983-f2d68b2de1d7

nova shows both IPs configured.

root@nodec62:/usr/lib/python2.7/dist-packages/novadocker/virt/docker# nova list --all-tenant|grep 966e8570-8325-4575-a983-f2d68b2de1d7
| 966e8570-8325-4575-a983-f2d68b2de1d7 | lxc | ACTIVE | - | Running | vn-dual=2002:8192:5666:1::3, 9.9.9.3 |

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/187097

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/187097
Committed: https://git.openstack.org/cgit/stackforge/nova-docker/commit/?id=0c9a794437d3c5e790e4cc1356ba1bf4ba52aa2b
Submitter: Jenkins
Branch: master

commit 0c9a794437d3c5e790e4cc1356ba1bf4ba52aa2b
Author: Ignatious Johnson Christopher <email address hidden>
Date: Sun May 31 21:06:53 2015 -0700

    Handling attaching of multiple vifs.
    Closes-Bug: #1458655

    Adding attach_interface and detach_interface methods in
    driver to handle 'nova interface-attach' and 'nova interface-detach'
    commands.
    Closes-Bug: #1458553

    Change-Id: Icec276cd32e7c961e0f1d8d1cba44a3c982fd8a5

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/11202
Submitter: Ignatious Johnson Christopher (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Review in progress for https://review.opencontrail.org/11203
Submitter: Ignatious Johnson Christopher (<email address hidden>)

[OpenContrail Admin (ci-admin-f)]

Reviewed: https://review.opencontrail.org/11202
Committed: http://github.org/Juniper/contrail-packaging/commit/ce264dff59319729d0df310e605790c7617feb83
Submitter: Zuul
Branch: R2.20

commit ce264dff59319729d0df310e605790c7617feb83
Author: Ignatious Johnson Christopher <email address hidden>
Date: Tue Jun 2 14:07:50 2015 -0700

Packaging new nova docker PPA with the following fixes,
Handling attaching of multiple vifs.
Closes-Bug: 1458655

Adding attach_interface and detach_interface methods in
driver to handle 'nova interface-attach' and 'nova interface-detach'
commands.
Closes-Bug: 1458553

Change-Id: Iada34e7be3ad2b6a51235a66b657691dae826fbd

[OpenContrail Admin (ci-admin-f)]

Reviewed: https://review.opencontrail.org/11203
Committed: http://github.org/Juniper/contrail-packaging/commit/f44ad674ef808ee1792b27c1ff7762a2bd345a6e
Submitter: Zuul
Branch: master

commit f44ad674ef808ee1792b27c1ff7762a2bd345a6e
Author: Ignatious Johnson Christopher <email address hidden>
Date: Tue Jun 2 14:04:24 2015 -0700

Packaging new nova docker PPA with the following fixes.
Handling attaching of multiple vifs.
Closes-Bug: 1458655

Adding attach_interface and detach_interface methods in
driver to handle 'nova interface-attach' and 'nova interface-detach'
commands.
Closes-Bug: 1458553

Change-Id: Id18481f675ed85ca2b2d64ac8b4d0e8a2f9a053d