This is initialized to docker.io, keeping the default behaviour if not specified. However, it allows us to specify a private registry later on. Related: OS#4839 Change-Id: I32d4ee6256033c809108c1b86cb6b6c58d880f49
This way we get VTY parsing failures as well as backtraces upon process crash. Related: OS#4212 Change-Id: I9493ff73ef27c7c6d32b00cf827704b3f9cbf86a
Change-Id: I23cb350ded2940bd63b47ae84e44faa3292b0d9d