Comment 12 for bug 1084028

root@red-compute:~# ovs-vsctl show
8d08d8e4-49f2-4243-b1db-7641984a8530
    Bridge br-ex
        Port br-ex
            Interface br-ex
                type: internal
    Bridge br-int
        Port "eth1"
            Interface "eth1"
        Port br-int
            Interface br-int
                type: internal
    ovs_version: "2.0.1"

root@red-compute:~# cat /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto eth0
iface eth0 inet manual
 up ifconfig $IFACE 0.0.0.0 up
        up ip link set $IFACE promisc on
        down ip link set $IFACE promisc off
        down ifconfig $IFACE down

auto eth1
iface eth1 inet manual
 up ifconfig $IFACE 0.0.0.0 up
        down ifconfig $IFACE down

auto br-int
iface br-int inet dhcp

And when I boot up, cloudinit does not find the interfaces so no network is up.

I have to take an screenshot of the issue. The problem is that rbd storage is not boot up because cloudinit does not find the interfaces to connect to the intranet (because it's a bridge), and all the system becomes a nightmare.