Build a container image with the haproxy-statsd script, and run that
along with the haproxy container.
Change-Id: I18be70d339df613bf9a72e115e80a6da876111e0
This runs an haproxy which is strikingly similar to the one we
currently run for git.openstack.org, but it is run in a docker
container.
Change-Id: I647ae8c02eb2cd4f3db2b203d61a181f7eb632d2