It’s right there in the repo history. Start from the first commits. I don’t know how serious of an allegation it is: copy-pasting open-source code without crediting it properly is rude, but not illegal.

No, that’s totally illegal. The Docker Engine is licensed under the Apache-2.0 terms, which require attribution.

It is actually against copyright law, and redhat legal would take any allegations very seriously. What in specific do you think is copy and pasted code?

Docker is properly attributed to, see https://github.com/containers/storage/blob/a4cc7aa79e050c976...

I think OP wanted to say that Podman hates Docker what is not I feel when I'm interacting with the community there. People who use Podman do it because of it's additional features that Docker does not have, like starting an Container from a rootfs or mounting the currect directory in a container using "." as path. Also building containers using a shellscript is supported. No need to learn the Dockerfile syntax. There are lot of small things that make Podman better integrated into Linux systems: running the container via systemd is a lot more intuitive.