instack-undercloud is no longer in use by the TripleO project. Removing
the code to avoid confusion. Stable branches will continue to be
maintained for their life however no new features should be added.
Change-Id: I63a813c7c1ffd30ca30017133d31a497b77a9a4d
Blueprint: remove-instack-undercloud
This patch adds a new option to configure the docker_registry_mirror.
The motivation is to be able to make use of new infra HTTP
mirrors for docker images.
Depends-On: I4b966e9b9b174ca5a6f57974185e0149ea12f232
Change-Id: I09761ac70454e7f3fe35d0ffe32b1edb0ca217f3