Cleanup use of sudo for copying files. Apply docker specific
configuration inside user directory.
Utilize multiple juju controllers utilizing the stack name.
Create stack with no exposed host ports via '-nohostports' for creating
multiple instances of osm (useful in CI)
Change-Id: I32e2eab2cbae7fa6939eee2df556f6788d065a92
Signed-off-by: Mike Marchetti <mmarchetti@sandvine.com>