Nova Docker network in container has wrong network mask

[Daniel Kuffner]

Network in container has wrong network mask.

In devstack you have a default network defined like following:

    nova network-list
    +--------------------------------------+---------+-------------+
    | ID | Label | Cidr |
    +--------------------------------------+---------+-------------+
    | f7c6e98d-d900-4df2-8523-0c8dd3a4ad7f | private | 10.0.0.0/24 |
    +--------------------------------------+---------+-------------+

If I start up a new container via nova and look at the created network device:

    sudo ip netns exec <container-id> ip a | grep pvnetr

    66: pvnetr70121: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
        inet 10.0.0.2/8 brd 10.255.255.255 scope global pvnetr70121

Then you can see that it has a 10.0.0.2/8 network.
I would expect to find a 10.0.0.2/24

[Daniel Kuffner (daniel-kuffner)]

Change Set: https://review.openstack.org/#/c/62220/

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/62220
Committed: https://git.openstack.org/cgit/openstack/nova/commit/?id=709410d243a97d35c3da314b41bab039eac75736
Submitter: Jenkins
Branch: master

commit 709410d243a97d35c3da314b41bab039eac75736
Author: Daniel Kuffner <email address hidden>
Date: Sun Dec 15 09:53:17 2013 +0100

    Nova Docker: Metadata service doesn't work

    The metadata services rejects the request because the remote IP address
    belongs to the docker network. The remote IP address is correct by using
    the nova network as default route.

    Change-Id: I410a9bfea560f669515b31db7f007515b4d5c4e7
    Closes-Bug: #1259267
    Closes-Bug: #1261021