ovn: Add bridge mappings to ovn-controller.
Add a new OVN configuration entry in the Open_vSwitch database called
"ovn-bridge-mappings". This allows the configuration of mappings
between a physical network name and an OVS bridge that provides
connectivity to that network.
For example, if you wanted to configure "physnet1" to map to "br-eth0"
and "physnet2" to map to "br-eth1", the configuration would be:
$ ovs-vsctl set open . \
> external-ids:ovn-bridge-mappings=physnet1:br-eth0,physnet2:br-eth1
Patch ports between these bridges and the integration bridge are
automatically created and also removed if necessary when the
configuration changes.
Signed-off-by: Russell Bryant <rbryant@redhat.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>