Comment 2 for bug 1341423

Reviewed: https://review.openstack.org/106684
Committed: https://git.openstack.org/cgit/stackforge/nova-docker/commit/?id=000f5f2a02e4b32f6bcbfab6a72cc67ab4ab821d
Submitter: Jenkins
Branch: master

commit 000f5f2a02e4b32f6bcbfab6a72cc67ab4ab821d
Author: gupeng <gp_stack@163.com>
Date: Mon Jul 14 12:10:26 2014 +0800

    Split plug_vifs into plug_vifs and attach_vifs

    Driver.plug_vifs is sometimes called when the container is not
    running, such as called by _init_instance in ComputeManager.

    In this patch, plug_vifs is only responsible for creating bridges
    and preparing the peer devices, which does not require the container
    running, attach_vifs is responsible for preparing the netns and
    attaching the peer device to container.

    When starting a container, attach_vifs is called after plug_vifs.

    Change-Id: Icc5e2cebde22c10a318379d41bb4c50085b07162
    Closes-bug: #1341423