registryService.LookupPullEndpoints uses lookupV2Endpoints https://github.com/moby/moby/blob/v24.0.5/registry/service.go#L137-L142 which, as the name indicates, only returns V2 endpoints; https://github.com/moby/moby/blob/v24.0.5/registry/service_v2.go#L10-L80 Signed-off-by: Sebastiaan van Stijn <github@gone.nl>