Add this repo to the openstack-base image, and use the upper-constraints
to install the client packages. Will follow up with dependant patches
for the child images to reduce the risk of breaking everything at once.
--
Background:
Many dependencies in the requirements.txt of OpenStack components have
quite loose version requirements, in many cases they will just specify a
minimum version (e.g. WebOb>=1.2.3).
The result of this is that given a Kolla image for Keystone built today,
another build of the exact same ref of Keystone could be broken
tomorrow, due to it picking up a later unsupported dependency.
The https://github.com/openstack/requirements repo exists to bring some
sanity to this situation. (It also outlines other problems it solves in
it's readme).
We also may like to checkout the stable/liberty branch of this project
in our liberty branch, once it appears.
Change-Id: Iccb4e99f8e4b6659a19c1817d0f4c697824af25c
Partial-Bug: #1505306
72a8f5aabd