Even when explicitly passing https, registry requests to localhost are downgraded to http

[apostasie]

Description

nerdctl login https://127.0.0.1:5000 will always be downgraded to http://127.0.0.1:5000

It seems to be because of the faulty logic in remotes/docker/config/hosts.go that apparently considers "the scheme is ambiguous" as the port is non-standard and the host is localhost.

Whether they fixed it for 2.0 is unclear to me at this point.

Steps to reproduce the issue

1. nerdctl login https://127.0.0.1:5000

Describe the results you received and expected

Seeing: request downgraded to http://127.0.0.1:5000

Should see: not downgraded, the scheme is explicit

What version of nerdctl are you using?

1.7.6 / main

Are you using a variant of nerdctl? (e.g., Rancher Desktop)

None

Host information

No response