Does Podman offer direct streaming of container checkpoints (similar to CRIU's --stream with criu-image-streamer)

[RobinAllgeier]

I have a question regarding the possibility of directly streaming container checkpoints without having to store them locally first. I am familiar with CRIU's --stream option, which, in conjunction with the criu-image-streamer allows the checkpoint data to be directly passed to the streamer. The data then can be split into multiple outputshards, which can then be compressed and sent directly over a network (e.g., via SSH) to another server in a parallelized way. This avoids the need to save the checkpoint locally on the source system, which speeds up the process of migration. Does Podman already offer a similar functionality or a way to directly stream a container checkpoint to another server without saving it locally and copying it manually to the destination?

[rst0git]

Not yet. This is something we are interested in implementing, but Podman currently does not support this functionality.