my #build #container framework:
sudo unshare \
--fork \
--mount \
--uts \
sh -c "
mkdir -p $ROOTFS/proc
mkdir -p $ROOTFS/sys
mkdir -p $ROOTFS/dev
mount -t sysfs /sys $ROOTFS/sys
mount -t proc /proc $ROOTFS/proc
mount --rbind /dev $ROOTFS/dev
hostname $MACHINE
su $USER
export PUAVO_CACHE_PROXY=$PUAVO_CACHE_PROXY
sudo unshare --root $ROOTFS $CMDLINE
"