Cloudmash333op11 hours ago
Hey everyone,
I’ve been diving deep into how Docker actually works under the hood — namespaces, cgroups, chroot, virtual Ethernet pairs, etc. To really understand it, I wrote my own container runtime from scratch using only Bash and standard Linux utilities.
It can:
Create isolated filesystem environments (via chroot)
Set up PID, UTS, and network namespaces
Connect containers using virtual Ethernet pairs
Run simple Nodejs app inside this container Allot cgroups to this process This project helped me understand how containerization works without any abstraction layer — just pure Linux fundamentals.
Repo: github.com/Cloudmash333/container-from-scratch