When update the subnet's gateway ip of the external network, the static route in OVNNB is not updated

[Guoshuai Li]

When updating the subnet ip of the external network, the static route in OVNNB is not updated.

1. create external network
# openstack network create --provider-physical-network public --provider-network-type vlan --provider-segment 2515 --external --share ext_network

2. create external network's subnet
# openstack subnet create --subnet-range 10.157.145.0/24 --gateway 10.157.145.254 --network ext_network --allocation-pool start=10.157.145.240,end=10.157.145.250 ext_subnet

3. create router with external network
# openstack router create route1
# openstack router set --external-gateway ext_network route1

4. check static router in OVNNB
# ovn-nbctl list Logical_Router_Static_Route
nexthop: "10.157.145.254"

5. update subnet gateway_ip
# openstack subnet set --gateway 10.157.145.253 ext_subnet

4. check static router in OVNNB
# ovn-nbctl list Logical_Router_Static_Route
nexthop: "10.157.145.254"

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/459965

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/459965
Committed: https://git.openstack.org/cgit/openstack/networking-ovn/commit/?id=55cb70ccbca468d1965d17e5a76f260b8a046787
Submitter: Jenkins
Branch: master

commit 55cb70ccbca468d1965d17e5a76f260b8a046787
Author: Guoshuai Li <email address hidden>
Date: Wed Apr 26 14:45:14 2017 +0800

    fix no update OVNNB static-route when change external subnet's gateway_ip

    subscribe external network's SUBNET_GATEWAY event, and update OVNNB static-route.

    Change-Id: Ideee0fb6f22e1027e9e99bcd5ec6b1a8cb9d9e87
    Closes-Bug: #1686288
    Signed-off-by: Guoshuai Li <email address hidden>

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/networking-ovn 3.0.0.0b2 development milestone.