A simple program used to study Linux namespace and cgroup.

ref : http://coolshell.cn/articles/17010.html

• To compile

gcc container.c -o container -luuid

• To build rootfs

./buildRootfs.sh

• To create COW image

mkdir upper workdir containerRoot
sudo mount -t overlay overlay -olowerdir=rootfs,upperdir=upper,workdir=workdir containerRoot

• To create a shared home directory to container

mkdir homeShare
cd homeShare;touch a_shared_file

• To run

sudo ./container -f containerRoot -c /bin/bash -v homeShare:home -u root:root -h container