Minimal working Container Sandboxing on uLinux with POSIX Shell scripts

test.sh

# ./congine /bin/sh
# hostname
container
# id
uid=0(root) gid=0(root) groups=0(root),0(root),65534,65534,65534,65534,65534,65534
# ps aux
PID   USER     TIME  COMMAND
    1 root      0:00 /bin/sh
    4 root      0:00 ps aux
# Container Terminated
# mount
/dev/root on / type ext2 (rw,relatime)
proc on /proc type proc (rw,nosuid,nodev,noexec,relatime)
sysfs on /sys type sysfs (rw,nosuid,nodev,noexec,relatime)
none on /dev type tmpfs (rw,nosuid,relatime)
devpts on /dev/pts type devpts (rw,relatime,gid=5,mode=620,ptmxmode=000)
none on /dev/shm type tmpfs (rw,relatime)
none on /tmp type tmpfs (rw,relatime,mode=1777)
#

This is based on modified congine and will likely become part of uLinux's core.