UNAUTHORIZED, authentication required, when running against a private image

[grayaii]

$ python docker_pull.py foo/bar:latest
[-] Cannot fetch manifest for foo/bar [HTTP 401]
b'{"errors":[{"code":"UNAUTHORIZED","message":"authentication required","detail":[{"Type":"repository","Class":"","Name":"foo/bar","Action":"pull"}]}]}\n'

But if I run:
docker pull foo/bar:latest

it works.

I'm not sure how to pass my creds to the script.

[zverev-iv]

Same thing

[NotGlop]

The script doesn't support authenticating to private registries yet, but will add this in the backlog.
Also related to #36