simple app to understand cgroups and namespaces runs busybox (easy/simple since its a single exe with no lined shared objects) in a container.
has the code from Linux containers in 500 lines of code but with my comments i added for understanding
Bocker - Docker with bash script
i'm unable to find the rust verion of this now, due to lot of repos with same name, but a lot of the code here is mostly a shrinked version of this. i'll update when i find the link. Rocker