Ability to docker load a subset of images

Hi,

This is not a bug report but more of a query / feature request. I have a need to take in some large tarballs containing many docker images that were previously saved with docker save, and to then as quickly as possible, do a docker load on those, retag them with a remote registry hostname and push them to that remote registry.

This all works fine but because of the time it takes, I am looking for a way to optimize this. In cases where the remote registry already has most / even all of the images in question for example, I have not found a way to optimize for this. Ideally I was hoping there was an ability for me to docker load a specific list of image tags that I know I need, and not have to read / process the others.

Is this possible with the docker engine api / docker python library in any way? Would anyone be able to share how this might be achieved?

Regards,
Mark

No repository file or test is named. Start by reviewing docker-py’s Docker Engine API image-load entry point and the request for selecting tags from docker save tarballs; done would be a decided, documented approach or a scoped implementation with coverage for subset loading.