#!/bin/sh BUILDER_NAME=$(uuidgen) docker build -t kuryr/demo_builder . -f Dockerfile.builder docker run --name ${BUILDER_NAME} kuryr/demo_builder rm -fr rootfs rm -fr rootfs.tar.xz docker cp ${BUILDER_NAME}:/usr/src/busybox/rootfs rootfs docker rm ${BUILDER_NAME} # In order for ping and traceroute to work, we need to give suid to busybox chmod +s rootfs/bin/busybox tar -J -f rootfs.tar.xz --numeric-owner --exclude='dev/*' -C rootfs -c . rm -fr rootfs docker build -t kuryr/demo . -f Dockerfile