When using a https proxy, an extra HTTP 200 header will be generated.
So we can't rely on detecting the first http header.
$curlHeaders with https proxy:
"HTTP/1.0 200 Connection established <-- the https proxy's response
HTTP/1.1 307 Temporary Redirect
...
"
See https://stackoverflow.com/a/34537988/889429Fixes#34131
Signed-off-by: Jacob Wen <jian.w.wen@oracle.com>
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>
This is especially important for distributions like NixOS where `/bin/bash` doesn't exist, or for MacOS users who've installed a newer version of Bash than the one that comes with their OS.
Signed-off-by: Andrew "Tianon" Page <admwiggin@gmail.com>
