question: Should there be support for repository names starting with capital letters

[PuneetPunamiya]

I think repo name starting with capital letters are not supported because of this

For example: let's say if I have a repo name as example.com/Foo it would return an error saying repository can only contain the characters abcdefghijklmnopqrstuvwxyz0123456789_-./

[imjasonh]

Repo names containing uppercase letters just aren't valid. The Docker CLI doesn't support it, no runtimes support it, no registries support it.

Unfortunately OCI doesn't have a documented canonical spec for what constitutes a valid image reference, so this isn't very clear.

The closest we've come is https://github.com/opencontainers/image-spec/blob/main/annotations.md#pre-defined-annotation-keys which references Distribution's https://github.com/distribution/distribution/blob/d0deff9cd6c2b8c82c6f3d1c713af51df099d07b/reference/reference.go

Specifically, this line indicates only a-z0-9 are allowed as repo names.