There is currently a hole in our testing that lets os-client-config,
which sits at the bottom of the dependency chain for some key pieces
like neutronclient and python-openstackclient, introduce gate breakages.
Step one in fixing this is allowing os-client-config to be optionally
installed from source so that jobs can be put into its gate to exercise
its master vs devstack installs.
Additionally, osc-lib is a new and lovely library that's going to need
the same things.
We're putting both in install_oslo, even though they're not oslo
libraries, because that'll make grenade work properly.
Co-Authored-By: Monty Taylor <mordred@inaugust.com>
Change-Id: I747480b6063a62e82ca2b030f274d3e87bf28b3b
06f3639a70