Could not boot a VM in a subnet without gateway

[Zhiyuan Cai]

We can create a subnet without gateway in the central Neutron, but when we boot a VM in that subnet, the request fails since local Neutron is trying to calculate the IP allocation pool based on the central subnet gateway IP, which is None.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/467962

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/467962
Committed: https://git.openstack.org/cgit/openstack/tricircle/commit/?id=ed79a4d738f6234557ee391097250d7f61dd6a74
Submitter: Jenkins
Branch: master

commit ed79a4d738f6234557ee391097250d7f61dd6a74
Author: zhiyuan_cai <email address hidden>
Date: Thu May 25 17:35:32 2017 +0800

    Boot a VM in a subnet without gateway

    1. What is the problem
    We can create a subnet without gateway in the central Neutron, but when
    we boot a VM in that subnet, the request fails since local Neutron is
    trying to calculate the IP allocation pool based on the central subnet
    gateway IP, which is None.

    2. What is the solution for the problem
    If a central subnet doesn't have gateway, do not re-calculate local IP
    allocation pool when creating local subnet.

    3. What features need to be implemented to the Tricircle to
    realize the solution
    Support booting a VM in a subnet that has not gateway

    Change-Id: I04f7f9f9926f22bca3490ee46e2163b9c17bb8fe
    Closes-Bug: #1693446

[OpenStack Infra (hudson-openstack)]

This issue was fixed in the openstack/tricircle 3.3.0 release.