mirror of
https://github.com/moby/moby.git
synced 2022-11-09 12:21:53 -05:00
41 lines
980 B
Bash
41 lines
980 B
Bash
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#!/bin/bash
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# Generate a very minimal filesystem based on busybox-static,
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# and load it into the local docker under the name "busybox".
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BUSYBOX=$(which busybox)
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[ "$BUSYBOX" ] || {
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echo "Sorry, I could not locate busybox."
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echo "Try 'apt-get install busybox-static'?"
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exit 1
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}
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set -e
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ROOTFS=/tmp/rootfs-busybox-$$-$RANDOM
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mkdir $ROOTFS
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cd $ROOTFS
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mkdir bin etc dev dev/pts lib proc sys tmp
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touch etc/resolv.conf
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cp /etc/nsswitch.conf etc/nsswitch.conf
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echo root:x:0:0:root:/:/bin/sh > etc/passwd
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echo root:x:0: > etc/group
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ln -s lib lib64
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ln -s bin sbin
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cp $BUSYBOX bin
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for X in $(busybox --list)
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do
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ln -s busybox bin/$X
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done
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rm bin/init
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ln bin/busybox bin/init
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cp /lib/x86_64-linux-gnu/lib{pthread,c,dl,nsl,nss_*}.so.* lib
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cp /lib/x86_64-linux-gnu/ld-linux-x86-64.so.2 lib
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for X in console null ptmx random stdin stdout stderr tty urandom zero
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do
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cp -a /dev/$X dev
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done
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tar -cf- . | docker put busybox
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docker run -i -a -u root busybox /bin/echo Success.
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