Bug: auth.StaticCredential does not properly handle docker.io

[Wwwsylvia]

When remote.Registry is accessing docker.io, it actually issues requests to registry-1.docker.io. Therefore, it expects the client.Credential to return the credential for registry-1.docker.io instead of docker.io.
But the current implementation of auth.StaticCredential does not handle this case.

[Wwwsylvia]

One of the workarounds before this bug gets fixed is that, passing repo.Reference.Host() instead of registry name to StaticCredential().

   repo, _ := remote.NewRepository("docker.io/library/hello-world")
   repo.Client := &auth.Client{
               // other fields...
   	Credential: auth.StaticCredential(repo.Reference.Host(), cred),
   }

[qweeah]

Sorry I don't get the workaround. Suppose the registry name is docker.io, shouldn't repo.Reference.Host() also be docker.io?

[Wwwsylvia]

repo.Reference.Host() maps docker.io to registry-1.docker.io internally.