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# lxc: linux Container library
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# Daniel Lezcano <daniel.lezcano@free.fr>
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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# You should have received a copy of the GNU Lesser General Public
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# License along with this library; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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$rootfs/usr/share/udhcpc \
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mkdir -p $tree || return 1
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chmod 755 $tree || return 1
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pushd $rootfs/dev > /dev/null || return 1
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# minimal devices needed for busybox
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mknod tty c 5 0 || res=1
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mknod console c 5 1 || res=1
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chmod 666 tty console || res=1
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mknod tty0 c 4 0 || res=1
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mknod tty1 c 4 0 || res=1
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mknod tty5 c 4 0 || res=1
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chmod 666 tty0 || res=1
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mknod ram0 b 1 0 || res=1
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chmod 600 ram0 || res=1
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mknod null c 1 3 || res=1
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chmod 666 null || res=1
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cat <<EOF >> $rootfs/etc/passwd
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root:x:0:0:root:/root:/bin/sh
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cat <<EOF >> $rootfs/etc/group
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cat <<EOF >> $rootfs/etc/shadow
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root:\$1\$NJJLsV0P\$Y/esfSXDNR88G/bZFzgWY1:14595:0:99999:7:::
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echo "empty password for root, don't forget to change it !"
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cat <<EOF >> $rootfs/etc/init.d/rcS
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chmod 744 $rootfs/etc/init.d/rcS || return 1
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cat <<EOF >> $rootfs/etc/fstab
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proc /proc proc defaults 0 0
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shm /dev/shm tmpfs defaults 0 0
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# writable and readable for other
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chmod 644 $rootfs/etc/fstab || return 1
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# launch rcS first then make a console available
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# and propose a shell on the tty, the last one is
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cat <<EOF >> $rootfs/etc/inittab
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::sysinit:/etc/init.d/rcS
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::respawn:/bin/getty -L tty1 115200 vt100
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# writable and readable for other
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chmod 644 $rootfs/etc/inittab || return 1
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cat <<EOF >> $rootfs/usr/share/udhcpc/default.script
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ip addr flush dev \$interface
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# flush all the routes
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if [ -n "\$router" ]; then
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ip route del default 2> /dev/null
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if [ -n "\$broadcast" ]; then
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broadcast="broadcast \$broadcast"
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# add a new ip address
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ip addr add \$ip/\$mask \$broadcast dev \$interface
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if [ -n "\$router" ]; then
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ip route add default via \$router dev \$interface
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[ -n "\$domain" ] && echo search \$domain > /etc/resolv.conf
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echo nameserver \$i >> /etc/resolv.conf
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chmod 744 $rootfs/usr/share/udhcpc/default.script
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[ [[ addgroup adduser adjtimex ar arp arping ash awk basename \
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brctl bunzip2 bzcat bzip2 cal cat catv chattr chgrp chmod \
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chown chpasswd chpst chroot chrt chvt cksum clear cmp comm \
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cp cpio crond crontab cryptpw cut date dc dd deallocvt \
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delgroup deluser df dhcprelay diff dirname dmesg dnsd dos2unix \
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du dumpkmap dumpleases echo ed egrep eject env envdir envuidgid \
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ether-wake expand expr fakeidentd false fbset fdformat fdisk \
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fetchmail fgrep find findfs fold free freeramdisk fsck \
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fsck.minix ftpget ftpput fuser getopt getty grep gunzip gzip \
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halt hdparm head hexdump hostid hostname httpd hwclock id \
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ifconfig ifdown ifenslave ifup inetd init insmod install ip \
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ipaddr ipcalc ipcrm ipcs iplink iproute iprule iptunnel \
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kbd_mode kill killall killall5 klogd last length less linux32 \
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linux64 linuxrc ln loadfont loadkmap logger login logname \
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logread losetup lpd lpq lpr ls lsattr lsmod lzmacat makedevs \
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md5sum mdev mesg microcom mkdir mkfifo mkfs.minix mknod mkswap \
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mktemp modprobe more mount mountpoint msh mt mv nameif nc \
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netstat nice nmeter nohup nslookup od openvt passwd patch \
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pgrep pidof ping ping6 pipe_progress pivot_root pkill poweroff \
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printenv printf ps pscan pwd raidautorun rdate readahead \
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readlink readprofile realpath reboot renice reset resize rm \
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rmdir rmmod route rpm rpm2cpio run-parts runlevel runsv \
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runsvdir rx script sed sendmail seq setarch setconsole \
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setkeycodes setlogcons setsid setuidgid sh sha1sum slattach \
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sleep softlimit sort split start-stop-daemon stat strings \
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stty su sulogin sum sv svlogd swapoff swapon switch_root \
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sync sysctl syslogd tac tail tar taskset tcpsvd tee telnet \
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telnetd test tftp tftpd time top touch tr traceroute \
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true tty ttysize udhcpc udhcpd udpsvd umount uname uncompress \
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unexpand uniq unix2dos unlzma unzip uptime usleep uudecode \
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uuencode vconfig vi vlock watch watchdog wc wget which \
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who whoami xargs yes zcat zcip"
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type busybox >/dev/null
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if [ $? -ne 0 ]; then
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echo "busybox executable is not accessible"
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# copy busybox in the rootfs
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cp $(which busybox) $rootfs/bin
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if [ $? -ne 0 ]; then
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echo "failed to copy busybox in the rootfs"
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# do hardlink to busybox for the different commands
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for i in $functions; do ln $rootfs/bin/busybox $rootfs/bin/$i; done
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ln $rootfs/bin/busybox $rootfs/sbin/init
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# passwd exec must be setuid
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chmod +s $rootfs/bin/passwd
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cat <<EOF >> $path/config
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lxc.cgroup.devices.deny = a
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lxc.cgroup.devices.allow = c 1:3 rwm
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lxc.cgroup.devices.allow = c 1:5 rwm
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lxc.cgroup.devices.allow = c 5:1 rwm
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lxc.cgroup.devices.allow = c 5:0 rwm
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lxc.cgroup.devices.allow = c 4:0 rwm
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lxc.cgroup.devices.allow = c 4:1 rwm
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lxc.cgroup.devices.allow = c 1:9 rwm
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lxc.cgroup.devices.allow = c 1:8 rwm
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lxc.cgroup.devices.allow = c 136:* rwm
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lxc.cgroup.devices.allow = c 5:2 rwm
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lxc.cgroup.devices.allow = c 254:0 rwm
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$1 -h|--help -p|--path=<path>
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options=$(getopt -o hp:n: -l help,path:,name: -- "$@")
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if [ $? -ne 0 ]; then
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eval set -- "$options"
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-h|--help) usage $0 && exit 0;;
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-p|--path) path=$2; shift 2;;
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-n|--name) name=$2; shift 2;;
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--) shift 1; break ;;
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if [ "$(id -u)" != "0" ]; then
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echo "This script should be run as 'root'"
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if [ -z "$path" ]; then
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echo "'path' parameter is required"
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install_busybox $rootfs $name
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if [ $? -ne 0 ]; then
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echo "failed to install busybox's rootfs"
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configure_busybox $rootfs
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if [ $? -ne 0 ]; then
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echo "failed to configure busybox template"
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copy_configuration $path $rootfs $name
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if [ $? -ne 0 ]; then
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echo "failed to write configuration file"
added
removed
scripts/lxc-busybox.in
