If the registry responds directly with blob contents, use them,
otherwise follow the redirect without Authorization headers (which
likely aren't valid for the server being redirected to).
This preserves the basic structure of the previous output with up to one
additional progress bar per-layer (for the redirect request and then the
following blob request).
Signed-off-by: Tianon Gravi <admwiggin@gmail.com>
Upstream-commit: 4bbdc0b8f7b2faa3354738c300cfedb2b77c7316
Component: engine
The contrib directory contains scripts, images, and other helpful things
which are not part of the core docker distribution. Please note that they
could be out of date, since they do not receive the same attention as the
rest of the repository.