container

README

container

Credits

This work is inspired by following works and the major credit should be attributed to them:

(1) Building a container from scratch in Go - Liz Rice (Microscaling Systems) https://www.youtube.com/watch?v=Utf-A4rODH8

(2) A container in less than 60 lines of Go https://gist.github.com/christophberger/58505418133d474486a88f958d8ea14b

(3) Build Your Own Container Using Less than 100 Lines of Go https://www.infoq.com/articles/build-a-container-golang/

Install Go and LxC

sudo apt install golang-go

sudo apt-get install lxc lxc-checkconfig

Create Linux Container

sudo lxc-create -t download -n ubuntu

Choose as follows:

Distribution: ubuntu Release: bionic Architecture: amd64

Copying the created privileged container to create a root file system in /home/work/

cd /home/work/rootfs sudo cp /var/cache/lxc/download/ubuntu/bionic/amd64/default/rootfs.tar.xz . tar xvf rootfs.tar.xz

Running the container

aung@aung-VirtualBox:/home/work$ sudo go run container.go run /bin/bash running [/bin/bash] child running [/bin/bash] root@container:/# hostname container root@container:/# mount -t proc proc /proc root@container:/# ps PID TTY TIME CMD 1 ? 00:00:00 exe 5 ? 00:00:00 bash 17 ? 00:00:00 ps root@container:/# exit exit aung@aung-VirtualBox:/home/work$ hostname aung-VirtualBox

root@container:/# uname -a Linux container 5.15.0-73-generic #8020.04.1-Ubuntu SMP Wed May 17 14:58:14 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux root@container:/# exit exit aung@aung-VirtualBox:/home/work$ uname -a Linux aung-VirtualBox 5.15.0-73-generic #8020.04.1-Ubuntu SMP Wed May 17 14:58:14 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux

root@container:/# ls bin dev home lib64 mnt proc rootfs.tar.xz sbin sys usr boot etc lib media opt root run srv tmp var root@container:/# which bash /bin/bash root@container:/# exit exit aung@aung-VirtualBox:/home/work$ which bash /usr/bin/bash