forked from neil/lxc-templates
471 lines
14 KiB
Bash
471 lines
14 KiB
Bash
#!/bin/bash -eu
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#
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# template script for generating Plamo Linux container for LXC
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#
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#
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# lxc: linux Container library
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# Authors:
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# KATOH Yasufumi <karma@jazz.email.ne.jp>
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# TAMUKI Shoichi <tamuki@linet.gr.jp>
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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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# ref. https://github.com/Ponce/lxc-slackware/blob/master/lxc-slackware
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# lxc-ubuntu script
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# Detect use under userns (unsupported)
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for arg in "$@"; do
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[ "$arg" = "--" ] && break
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if [ "$arg" = "--mapped-uid" -o "$arg" = "--mapped-gid" ]; then
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echo "This template can't be used for unprivileged containers." 1>&2
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echo "You may want to try the \"download\" template instead." 1>&2
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exit 1
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fi
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done
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# Make sure the usual locations are in PATH
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export PATH=$PATH:/usr/sbin:/usr/bin:/sbin:/bin
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[ -r /etc/default/lxc ] && . /etc/default/lxc
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download_plamo() {
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# check the mini plamo was not already downloaded
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if ! mkdir -p $ptcache ; then
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echo "Failed to create '$ptcache' directory."
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return 1
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fi
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# download a mini plamo into a cache
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echo "Downloading Plamo-$release minimal..."
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cd $ptcache
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case $DLSCHEME in http) depth=2 ;; ftp) depth=3 ;; esac
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rej=${IGNOREPKGS%% *} ; [ -n "$rej" ] && rej="$rej-*"
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if [ `echo $IGNOREPKGS | wc -w` -gt 1 ] ; then
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for p in ${IGNOREPKGS#* } ; do rej="$rej,$p-*" ; done
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fi
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for i in $CATEGORIES ; do
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wget -nv -e robots=off -r -l $depth -nd -A .tgz,.txz -R "$rej" \
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-I $MIRRORPATH/Plamo-$release/$arch/plamo/$i \
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-X $MIRRORPATH/Plamo-$release/$arch/plamo/$i/old \
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$DLSCHEME://$MIRRORSRV$MIRRORPATH/Plamo-$release/$arch/plamo/$i
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if [ $? -ne 0 ] ; then
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echo "Failed to download the rootfs, aborting."
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return 1
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fi
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done
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for i in $EXTRACTGRS ; do
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wget -nv -e robots=off -r -l $depth -nd -A .tgz,.txz -R "$rej" \
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-I $MIRRORPATH/Plamo-$release/$arch/contrib/$i \
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-X $MIRRORPATH/Plamo-$release/$arch/contrib/$i/old \
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$DLSCHEME://$MIRRORSRV$MIRRORPATH/Plamo-$release/$arch/contrib/$i
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if [ $? -ne 0 ] ; then
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echo "Failed to download the rootfs, aborting."
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return 1
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fi
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done
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for p in $ADDONPKGS ; do
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wget -nv -e robots=off -r -l $depth -nd -A "`basename $p`-*" \
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-I $MIRRORPATH/Plamo-$release/$arch/`dirname $p` \
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-X $MIRRORPATH/Plamo-$release/$arch/`dirname $p`/old \
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$DLSCHEME://$MIRRORSRV$MIRRORPATH/Plamo-$release/$arch/`dirname $p`
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if [ $? -ne 0 ] ; then
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echo "Failed to download the rootfs, aborting."
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return 1
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fi
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done
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mv $ptcache $dlcache
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echo "Download complete."
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return 0
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}
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copy_plamo() {
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# make a local copy of the mini plamo
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echo "Copying $rtcache to $rootfs..."
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mkdir -p $rootfs
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find $rtcache -mindepth 1 -maxdepth 1 -exec cp -a {} $rootfs \; || return 1
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return 0
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}
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install_plamo() {
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mkdir -p @LOCALSTATEDIR@/lock/subsys
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(
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if ! flock -n 9 ; then
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echo "Cache repository is busy."
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return 1
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fi
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echo "Checking cache download in $dlcache..."
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if [ ! -d $dlcache ] ; then
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if ! download_plamo ; then
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echo "Failed to download plamo $release base packages."
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return 1
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fi
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fi
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# install "installpkg" command temporarily with static linked tar
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# command into the lxc cache directory to keep the original uid/
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# gid of files/directories.
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echo "Installing 'installpkg' command into $dlcache/sbin..."
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if [ $majorver -ge 7 ]; then
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pkgtool="pkgtools"
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else
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pkgtool="hdsetup"
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fi
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( cd $dlcache ; tar xpJf "$pkgtool"-*.txz ; rm -rf tmp usr var )
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sed -i "/ldconfig/!s@/sbin@$dlcache&@g" $dlcache/sbin/installpkg*
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PATH=$dlcache/sbin:$PATH
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echo "Installing packages to $rtcache..."
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if [ ! -d $rtcache ] ; then
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mkdir -p $rtcache
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for p in `ls -cr $dlcache/*.t?z` ; do
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installpkg -root $rtcache -priority ADD $p
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done
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fi
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echo "Copy $rtcache to $rootfs..."
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if ! copy_plamo ; then
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echo "Failed to copy rootfs."
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return 1
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fi
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return 0
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) 9> @LOCALSTATEDIR@/lock/subsys/lxc-plamo
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}
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configure_plamo6() {
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# suppress log level output for udev
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sed -i 's/="err"/=0/' $rootfs/etc/udev/udev.conf
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# /etc/fstab
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cat <<- "EOF" > $rootfs/etc/fstab
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none /proc proc defaults 0 0
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none /sys sysfs defaults 0 0
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none /dev tmpfs defaults 0 0
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none /tmp tmpfs defaults 0 0
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none /dev/pts devpts gid=5,mode=620 0 0
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none /proc/bus/usb usbfs noauto 0 0
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none /var/lib/nfs/rpc_pipefs rpc_pipefs defaults 0 0
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EOF
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# /etc/inittab
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cat <<- "EOF" | patch $rootfs/etc/inittab
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32,33c32,33
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< # What to do when power fails (shutdown to single user).
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< pf::powerfail:/sbin/shutdown -f +5 "THE POWER IS FAILING"
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---
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> # What to do when power fails (shutdown).
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> pf::powerfail:/sbin/shutdown -h +0 "THE POWER IS FAILING"
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47a48
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> 1:1235:respawn:/sbin/agetty 38400 console
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52,53d52
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< c5:1235:respawn:/sbin/agetty 38400 tty5 linux
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< c6:12345:respawn:/sbin/agetty 38400 tty6 linux
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EOF
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# configure the network using the dhcp
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echo "DHCP" > $rootfs/var/run/inet1-scheme
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# glibc configure
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mv $rootfs/etc/ld.so.conf{.new,}
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chroot $rootfs ldconfig
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# delete unnecessary process from rc.S
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ed - $rootfs/etc/rc.d/rc.S <<- "EOF"
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/^mount -w -n -t proc/;/^mkdir \/dev\/shm/-1d
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/^mknod \/dev\/null/;/^# Clean \/etc\/mtab/-2d
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/^# copy the rules/;/^# Set the hostname/-1d
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/^# Check the integrity/;/^# Clean up temporary/-1d
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w
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EOF
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# delete unnecessary process from rc.M
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ed - $rootfs/etc/rc.d/rc.M <<- "EOF"
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/^# Screen blanks/;/^# Initialize ip6tables/-1d
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/^# Initialize sysctl/;/^echo "Starting services/-1d
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/^sync/;/^# All done/-1d
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w
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EOF
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# delete unnecessary process from rc.6
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ed - $rootfs/etc/rc.d/rc.6 <<- "EOF"
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/^# Save system time/;/^# Unmount any remote filesystems/-1d
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/^# Turn off swap/;/^# See if this is a powerfail situation/-1d
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w
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EOF
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# /etc/rc.d/rc.inet1.tradnet
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head -n-93 $rootfs/sbin/netconfig.tradnet > /tmp/netconfig.rconly
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cat <<- EOF >> /tmp/netconfig.rconly
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PCMCIA=n
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RC=$rootfs/etc/rc.d/rc.inet1.tradnet
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IFCONFIG=sbin/ifconfig
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ROUTE=sbin/route
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INET1SCHEME=var/run/inet1-scheme
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IPADDR=127.0.0.1
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NETWORK=127.0.0.0
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DHCPCD=usr/sbin/dhclient
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LOOPBACK=y
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make_config_file
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EOF
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rm -f $rootfs/etc/rc.d/rc.inet1.tradnet
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sh /tmp/netconfig.rconly
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rm -f /tmp/netconfig.rconly
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sed -i '/cmdline/s/if/& false \&\&/' $rootfs/etc/rc.d/rc.inet1.tradnet
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# /etc/rc.d/rc.inet2
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sed -i '/rpc.mountd/s/^/#/' $rootfs/etc/rc.d/rc.inet2
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sed -i '/modprobe/s/^/#/' $rootfs/etc/rc.d/rc.inet2
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# configure to start only the minimum of service
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chmod 644 $rootfs/etc/rc.d/init.d/saslauthd
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chmod 644 $rootfs/etc/rc.d/init.d/open-iscsi
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rm -f $rootfs/etc/rc.d/init.d/postfix
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rm -f $rootfs/var/log/initpkg/shadow
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return 0
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}
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configure_plamo7() {
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# fstab
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cat <<- "EOF" >> $rootfs/etc/fstab
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proc /proc proc defaults 0 0
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tmpfs /run tmpfs defaults 0 0
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sysfs /sys sysfs defaults 0 0
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tmpfs /tmp tmpfs defaults 0 0
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devpts /dev/pts devpts gid=5,mode=620 0 0
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usbfs /proc/bus/usb usbfs noauto 0 0
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EOF
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# inittab
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sed -i -e '/^1:2345/i c:1235:respawn:/sbin/agetty console 38400'\
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-e '/^ca:/a pf::powerfail:/sbin/shutdown -h +0 "THE POWER IS FAILING"' \
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-e '/^4:2345/d' \
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-e '/^5:2345/d' \
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-e '/^6:2345/d' $rootfs/etc/inittab
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# tweak init script on startup
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remove_init_S="S05modules S10eudev S20swap S30checkfs S35setclock S50eudev_retry S70console"
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for f in $remove_init_S
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do
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rm -f $rootfs/etc/rc.d/rcS.d/"$f"
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done
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# remove init script in runlevel3
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remove_init="rc3.d/S30sshd
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rc6.d/K30sshd rc6.d/K35setclock rc6.d/S65swap rc6.d/S70mountfs
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rc0.d/K30sshd rc0.d/K35setclock rc0.d/S65swap rc0.d/S70mountfs"
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for f in $remove_init
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do
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rm -f $rootfs/etc/rc.d/"$f"
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done
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# Tweak rc script
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sed -i -e '/wait_for_user/d' \
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-e '/Press Enter to/d' \
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$rootfs/etc/rc.d/init.d/rc
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# network
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cat <<- "EOF" > $rootfs/etc/sysconfig/ifconfig.eth0
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ONBOOT="yes"
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IFACE="eth0"
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SERVICE="dhclient"
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EOF
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# initpkg
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noexec="shadow netconfig7 eudev openssh"
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for f in $noexec
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do
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rm -f $rootfs/var/log/initpkg/"$f"
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done
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pushd $rootfs
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for f in var/log/initpkg/*
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do
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chroot $rootfs sh ./$f
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done
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popd
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}
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configure_plamo() {
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# set the hostname
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echo "$name" > $rootfs/etc/HOSTNAME
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# set minimal hosts
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echo "127.0.0.1 localhost $name" > $rootfs/etc/hosts
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# localtime (JST)
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ln -s ../usr/share/zoneinfo/Asia/Tokyo $rootfs/etc/localtime
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# disable pam_loginuid.so in /etc/pam.d/login
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sed -i '/pam_loginuid/s/^/#/' $rootfs/etc/pam.d/login
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if [ $majorver -ge 7 ]; then
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configure_plamo7
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else
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configure_plamo6
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fi
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}
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copy_configuration() {
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ret=0
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cat <<- EOF >> $path/config || let ret++
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lxc.uts.name = $name
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lxc.arch = $arch
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EOF
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if [ -f "@LXCTEMPLATECONFIG@/plamo.common.conf" ] ; then
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cat <<- "EOF" >> $path/config || let ret++
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lxc.include = @LXCTEMPLATECONFIG@/plamo.common.conf
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EOF
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fi
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if [ $ret -ne 0 ] ; then
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echo "Failed to add configuration."
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return 1
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fi
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return 0
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}
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post_process() {
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# nothing do in Plamo Linux
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true
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}
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do_bindhome() {
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# bind-mount the user's path into the container's /home
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h=`getent passwd $bindhome | cut -d: -f6`
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mkdir -p $rootfs/$h
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echo "lxc.mount.entry = $h $rootfs/$h none bind 0 0" >> $path/config
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# copy /etc/passwd, /etc/shadow, and /etc/group entries into container
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if ! pwd=`getent passwd $bindhome` ; then
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echo "Warning: failed to copy password entry for $bindhome."
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else
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echo $pwd >> $rootfs/etc/passwd
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fi
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echo `getent shadow $bindhome` >> $rootfs/etc/shadow
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}
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cleanup() {
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[ -d $dlcache -a -d $rtcache ] || return 0
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# lock, so we won't purge while someone is creating a repository
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(
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if ! flock -n 9 ; then
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echo "Cache repository is busy."
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return 1
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fi
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echo "Purging the download cache..."
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rm -rf --one-file-system $dlcache $rtcache || return 1
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echo "Done."
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return 0
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) 9> @LOCALSTATEDIR@/lock/subsys/lxc-plamo
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}
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usage() {
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cat <<- EOF
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$prog [-h|--help] -p|--path=<path> -n|--name=<name> --rootfs=<rootfs>
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[-c|--clean] [-r|--release=<release>] [-a|--arch=<arch>]
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[-b|--bindhome=<user>]
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release: $release
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arch: x86 or x86_64: defaults to host arch
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bindhome: bind <user>'s home into the container
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EOF
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}
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prog=`basename $0`
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path="" ; name="" ; rootfs=""
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clean=0
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release=${release:-7.x}
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arch=`uname -m | sed 's/i.86/x86/'` ; hostarch=$arch
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bindhome=""
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sopts=hp:n:cr:a:b:
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lopts=help,path:,name:,rootfs:,clean,release:,arch:,bindhome:
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if ! options=`getopt -o $sopts -l $lopts -- "$@"` ; then
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usage
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exit 1
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fi
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eval set -- "$options"
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while true ; do
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case "$1" in
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-h|--help) usage && 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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--rootfs) rootfs=$2 ; shift 2 ;;
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-c|--clean) clean=1 ; shift 1 ;;
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-r|--release) release=$2 ; shift 2 ;;
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-a|--arch) arch=$2 ; shift 2 ;;
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-b|--bindhome) bindhome=$2 ; shift 2 ;;
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--) shift 1 ; break ;;
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*) break ;;
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esac
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done
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if [ $clean -eq 1 -a -z "$path" ] ; then
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cleanup || exit 1
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exit 0
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fi
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if [ $hostarch == "x86" -a $arch == "x86_64" ] ; then
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echo "Can't create x86_64 container on x86."
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exit 1
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fi
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if [ -z "$path" ] ; then
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echo "'path' parameter is required."
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exit 1
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fi
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if [ -z "$name" ] ; then
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echo "'name' parameter is required."
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exit 1
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fi
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if [ `id -u` -ne 0 ] ; then
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echo "This script should be run as 'root'."
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exit 1
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fi
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majorver=${release%.*}
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if [ $majorver -ge 7 ]; then
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CATEGORIES=${CATEGORIES-"00_base"}
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ADDONPKGS=${ADDONPKGS-""}
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else
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CATEGORIES=${CATEGORIES-"00_base 01_minimum"}
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ADDONPKGS=${ADDONPKGS-"`echo contrib/Hamradio/{morse,qrq}`"}
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fi
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DLSCHEME=${DLSCHEME:-"http"}
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MIRRORSRV=${MIRRORSRV:-"repository.plamolinux.org"}
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MIRRORPATH=${MIRRORPATH:-"/pub/linux/Plamo"}
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CATEGORIES=${CATEGORIES-"00_base 01_minimum"}
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EXTRACTGRS=${EXTRACTGRS-""}
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IGNOREPKGS=${IGNOREPKGS-"grub kernel lilo linux_firmware microcode_ctl
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linux_firmwares cpufreqd cpufrequtils gpm ntp kmod kmscon"}
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ADDONPKGS=${ADDONPKGS-"`echo contrib/Hamradio/{morse,qrq}`"}
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cache="${LXC_CACHE_PATH:-@LOCALSTATEDIR@/cache/lxc}"
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ptcache=$cache/partial-${prog##*-}-$release-$arch
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dlcache=$cache/cache-${prog##*-}-$release-$arch
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rtcache=$cache/rootfs-${prog##*-}-$release-$arch
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if [ -z "$rootfs" ] ; then
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if grep -q "^lxc.rootfs.path" $path/config ; then
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rootfs=`awk -F= '/^lxc.rootfs.path =/{ print $2 }' $path/config`
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else
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rootfs=$path/rootfs
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fi
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fi
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if ! install_plamo ; then
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echo "Failed to install plamo $release."
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exit 1
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fi
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if ! configure_plamo ; then
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echo "Failed to configure plamo $release for a container."
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exit 1
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fi
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if ! copy_configuration ; then
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echo "Failed to write configuration file."
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exit 1
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fi
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post_process
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if [ -n "$bindhome" ] ; then
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do_bindhome
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fi
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if [ $clean -eq 1 ] ; then
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|
cleanup || exit 1
|
|
exit 0
|
|
fi
|