Comment 2 for bug 1590145

Reviewed: https://review.openstack.org/326723
Committed: https://git.openstack.org/cgit/openstack/octavia/commit/?id=2d72ac69df756d9f48cc9b82df16eb760f144eec
Submitter: Jenkins
Branch: master

commit 2d72ac69df756d9f48cc9b82df16eb760f144eec
Author: Stephen Balukoff <email address hidden>
Date: Tue Jun 7 13:44:44 2016 -0700

    Fix alembic migration on MySQL 5.7

    Presently, attempting to run alembic migrations for Octavia on a host
    using MySQL 5.7 as the database back-end fails with an error about a
    nullable field in a primary key. This commit fixes the offending
    migration and introduces a second, similar migration so that any
    existing installation using MySQL 5.6 or older also have this field set
    to be non-nullable.

    Change-Id: Iae3d4f627c1124b1d913aab283e6e19d9c0f0dbb
    Closes-Bug: #1590145