So just to close the loop on this, I ran across
https://github.com/openshift/origin/tree/master/examples/gitserver which
seems to solve this issue rather well. This provides a service which
acts as a caching proxy to the real git repo.
It doesn't work quite as documented due to OpenShift's
Is there a way to implement some sort of git cache when building images?
When working locally (via minishift), on some of our projects the `git
clone` step of the build takes quite a while, especially over slow
links. This is compounded by the fact that we're using build chaining, a
"builder"
