templates/lxc-plamo.in

   1 #!/bin/bash -eu
   2
   3 #
   4 # template script for generating Plamo Linux container for LXC
   5 #
   6
   7 #
   8 # lxc: linux Container library
   9
  10 # Authors:
  11 # KATOH Yasufumi <karma@jazz.email.ne.jp>
  12 # TAMUKI Shoichi <tamuki@linet.gr.jp>
  13
  14 # This library is free software; you can redistribute it and/or
  15 # modify it under the terms of the GNU Lesser General Public
  16 # License as published by the Free Software Foundation; either
  17 # version 2.1 of the License, or (at your option) any later version.
  18
  19 # This library is distributed in the hope that it will be useful,
  20 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  21 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  22 # Lesser General Public License for more details.
  23
  24 # You should have received a copy of the GNU Lesser General Public
  25 # License along with this library; if not, write to the Free Software
  26 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  27
  28 # ref. https://github.com/Ponce/lxc-slackware/blob/master/lxc-slackware
  29 #      lxc-ubuntu script
  30
  31 # Detect use under userns (unsupported)
  32 for arg in "$@"; do
  33     [ "$arg" = "--" ] && break
  34     if [ "$arg" = "--mapped-uid" -o "$arg" = "--mapped-gid" ]; then
  35         echo "This template can't be used for unprivileged containers." 1>&2
  36         echo "You may want to try the \"download\" template instead." 1>&2
  37         exit 1
  38     fi
  39 done
  40
  41 # Make sure the usual locations are in PATH
  42 export PATH=$PATH:/usr/sbin:/usr/bin:/sbin:/bin
  43
  44 [ -r /etc/default/lxc ] && . /etc/default/lxc
  45
  46 DLSCHEME=${DLSCHEME:-"http"}
  47 MIRRORSRV=${MIRRORSRV:-"www.ring.gr.jp"}
  48 MIRRORPATH=${MIRRORPATH:-"/pub/linux/Plamo"}
  49 CATEGORIES=${CATEGORIES-"00_base 01_minimum"}
  50 EXTRACTGRS=${EXTRACTGRS-""}
  51 IGNOREPKGS=${IGNOREPKGS-"grub kernel lilo linux_firmware microcode_ctl
  52     cpufreqd cpufrequtils gpm"}
  53 ADDONPKGS=${ADDONPKGS-"`echo contrib/Hamradio/{morse,qrq}`"}
  54
  55 download_plamo() {
  56   # check the mini plamo was not already downloaded
  57   if ! mkdir -p $ptcache ; then
  58     echo "Failed to create '$ptcache' directory."
  59     return 1
  60   fi
  61   # download a mini plamo into a cache
  62   echo "Downloading Plamo-$release minimal..."
  63   cd $ptcache
  64   case $DLSCHEME in http) depth=2 ;; ftp) depth=3 ;; esac
  65   rej=${IGNOREPKGS%% *} ; [ -n "$rej" ] && rej="$rej-*"
  66   if [ `echo $IGNOREPKGS | wc -w` -gt 1 ] ; then
  67     for p in ${IGNOREPKGS#* } ; do rej="$rej,$p-*" ; done
  68   fi
  69   for i in $CATEGORIES ; do
  70     wget -nv -e robots=off -r -l $depth -nd -A .tgz,.txz -R "$rej" \
  71         -I $MIRRORPATH/Plamo-$release/$arch/plamo/$i \
  72         -X $MIRRORPATH/Plamo-$release/$arch/plamo/$i/old \
  73         $DLSCHEME://$MIRRORSRV$MIRRORPATH/Plamo-$release/$arch/plamo/$i
  74     if [ $? -ne 0 ] ; then
  75       echo "Failed to download the rootfs, aborting."
  76       return 1
  77     fi
  78   done
  79   for i in $EXTRACTGRS ; do
  80     wget -nv -e robots=off -r -l $depth -nd -A .tgz,.txz -R "$rej" \
  81         -I $MIRRORPATH/Plamo-$release/$arch/contrib/$i \
  82         -X $MIRRORPATH/Plamo-$release/$arch/contrib/$i/old \
  83         $DLSCHEME://$MIRRORSRV$MIRRORPATH/Plamo-$release/$arch/contrib/$i
  84     if [ $? -ne 0 ] ; then
  85       echo "Failed to download the rootfs, aborting."
  86       return 1
  87     fi
  88   done
  89   for p in $ADDONPKGS ; do
  90     wget -nv -e robots=off -r -l $depth -nd -A "`basename $p`-*" \
  91         -I $MIRRORPATH/Plamo-$release/$arch/`dirname $p` \
  92         -X $MIRRORPATH/Plamo-$release/$arch/`dirname $p`/old \
  93         $DLSCHEME://$MIRRORSRV$MIRRORPATH/Plamo-$release/$arch/`dirname $p`
  94     if [ $? -ne 0 ] ; then
  95       echo "Failed to download the rootfs, aborting."
  96       return 1
  97     fi
  98   done
  99   mv $ptcache $dlcache
 100   echo "Download complete."
 101   return 0
 102 }
 103
 104 copy_plamo() {
 105   # make a local copy of the mini plamo
 106   echo "Copying $rtcache to $rootfs..."
 107   mkdir -p $rootfs
 108   find $rtcache -mindepth 1 -maxdepth 1 -exec cp -a {} $rootfs \; || return 1
 109   return 0
 110 }
 111
 112 install_plamo() {
 113   mkdir -p @LOCALSTATEDIR@/lock/subsys
 114   (
 115     if ! flock -n 9 ; then
 116       echo "Cache repository is busy."
 117       return 1
 118     fi
 119     echo "Checking cache download in $dlcache..."
 120     if [ ! -d $dlcache ] ; then
 121       if ! download_plamo ; then
 122         echo "Failed to download plamo $release base packages."
 123         return 1
 124       fi
 125     fi
 126     # install "installpkg" command temporarily with static linked tar
 127     # command into the lxc cache directory to keep the original uid/
 128     # gid of files/directories.
 129     echo "Installing 'installpkg' command into $dlcache/sbin..."
 130     ( cd $dlcache ; tar xpJf hdsetup-*.txz ; rm -rf tmp usr var )
 131     sed -i "/ldconfig/!s@/sbin@$dlcache&@g" $dlcache/sbin/installpkg*
 132     PATH=$dlcache/sbin:$PATH
 133     echo "Installing packages to $rtcache..."
 134     if [ ! -d $rtcache ] ; then
 135       mkdir -p $rtcache
 136       for p in `ls -cr $dlcache/*.t?z` ; do
 137         installpkg -root $rtcache -priority ADD $p
 138       done
 139     fi
 140     echo "Copy $rtcache to $rootfs..."
 141     if ! copy_plamo ; then
 142       echo "Failed to copy rootfs."
 143       return 1
 144     fi
 145     return 0
 146   ) 9> @LOCALSTATEDIR@/lock/subsys/lxc-plamo
 147 }
 148
 149 configure_plamo() {
 150   # suppress log level output for udev
 151   sed -i 's/="err"/=0/' $rootfs/etc/udev/udev.conf
 152   # /etc/fstab
 153   cat <<- "EOF" > $rootfs/etc/fstab
 154         none             /proc    proc        defaults   0   0
 155         none             /sys     sysfs       defaults   0   0
 156         none             /dev     tmpfs       defaults   0   0
 157         none                /tmp     tmpfs       defaults   0   0
 158         none            /dev/pts        devpts  gid=5,mode=620    0 0
 159         none            /proc/bus/usb             usbfs        noauto   0   0
 160         none             /var/lib/nfs/rpc_pipefs rpc_pipefs  defaults   0   0
 161         EOF
 162   # /etc/inittab
 163   cat <<- "EOF" | patch $rootfs/etc/inittab
 164         32,33c32,33
 165         < # What to do when power fails (shutdown to single user).
 166         < pf::powerfail:/sbin/shutdown -f +5 "THE POWER IS FAILING"
 167         ---
 168         > # What to do when power fails (shutdown).
 169         > pf::powerfail:/sbin/shutdown -h +0 "THE POWER IS FAILING"
 170         47a48
 171         > 1:1235:respawn:/sbin/agetty 38400 console
 172         52,53d52
 173         < c5:1235:respawn:/sbin/agetty 38400 tty5 linux
 174         < c6:12345:respawn:/sbin/agetty 38400 tty6 linux
 175         EOF
 176   # set the hostname
 177   echo "$name" > $rootfs/etc/HOSTNAME
 178   # set minimal hosts
 179   echo "127.0.0.1 localhost $name" > $rootfs/etc/hosts
 180   # configure the network using the dhcp
 181   echo "DHCP" > $rootfs/var/run/inet1-scheme
 182   # localtime (JST)
 183   ln -s ../usr/share/zoneinfo/Asia/Tokyo $rootfs/etc/localtime
 184   # disable pam_loginuid.so in /etc/pam.d/login (for libvirt's lxc driver)
 185   sed -i '/pam_loginuid/s/^/#/' $rootfs/etc/pam.d/login
 186   # glibc configure
 187   mv $rootfs/etc/ld.so.conf{.new,}
 188   chroot $rootfs ldconfig
 189   # root password
 190   echo "Setting root password to 'root'..."
 191   echo "root:root" | chroot $rootfs chpasswd
 192   echo "Please change root password!"
 193   ed - $rootfs/etc/rc.d/rc.S <<- "EOF"
 194         /^mount -w -n -t proc/;/^mkdir \/dev\/shm/-1d
 195         /^mknod \/dev\/null/;/^# Clean \/etc\/mtab/-2d
 196         /^# copy the rules/;/^# Set the hostname/-1d
 197         /^# Check the integrity/;/^# Clean up temporary/-1d
 198         w
 199         EOF
 200   # /etc/rc.d/rc.M
 201   ed - $rootfs/etc/rc.d/rc.M <<- "EOF"
 202         /^# Screen blanks/;/^# Initialize ip6tables/-1d
 203         /^# Initialize sysctl/;/^echo "Starting services/-1d
 204         /^sync/;/^# All done/-1d
 205         w
 206         EOF
 207   # /etc/rc.d/rc.inet1.tradnet
 208   head -n-93 $rootfs/sbin/netconfig.tradnet > /tmp/netconfig.rconly
 209   cat <<- EOF >> /tmp/netconfig.rconly
 210         PCMCIA=n
 211         RC=$rootfs/etc/rc.d/rc.inet1.tradnet
 212         IFCONFIG=sbin/ifconfig
 213         ROUTE=sbin/route
 214         INET1SCHEME=var/run/inet1-scheme
 215         IPADDR=127.0.0.1
 216         NETWORK=127.0.0.0
 217         DHCPCD=usr/sbin/dhclient
 218         LOOPBACK=y
 219         make_config_file
 220         EOF
 221   rm -f $rootfs/etc/rc.d/rc.inet1.tradnet
 222   sh /tmp/netconfig.rconly
 223   rm -f /tmp/netconfig.rconly
 224   sed -i '/cmdline/s/if/& false \&\&/' $rootfs/etc/rc.d/rc.inet1.tradnet
 225   return 0
 226 }
 227
 228 copy_configuration() {
 229   ret=0
 230   cat <<- EOF >> $path/config || let ret++
 231         lxc.utsname = $name
 232         lxc.arch = $arch
 233         EOF
 234   if [ -f "@LXCTEMPLATECONFIG@/plamo.common.conf" ] ; then
 235     cat <<- "EOF" >> $path/config || let ret++
 236
 237         lxc.include = @LXCTEMPLATECONFIG@/plamo.common.conf
 238         EOF
 239   fi
 240   if [ $ret -ne 0 ] ; then
 241     echo "Failed to add configuration."
 242     return 1
 243   fi
 244   return 0
 245 }
 246
 247 post_process() {
 248   # nothing do in Plamo Linux
 249   true
 250 }
 251
 252 do_bindhome() {
 253   # bind-mount the user's path into the container's /home
 254   h=`getent passwd $bindhome | cut -d: -f6`
 255   mkdir -p $rootfs/$h
 256   echo "lxc.mount.entry = $h $rootfs/$h none bind 0 0" >> $path/config
 257   # copy /etc/passwd, /etc/shadow, and /etc/group entries into container
 258   if ! pwd=`getent passwd $bindhome` ; then
 259     echo "Warning: failed to copy password entry for $bindhome."
 260   else
 261     echo $pwd >> $rootfs/etc/passwd
 262   fi
 263   echo `getent shadow $bindhome` >> $rootfs/etc/shadow
 264 }
 265
 266 cleanup() {
 267   [ -d $dlcache -a -d $rtcache ] || return 0
 268   # lock, so we won't purge while someone is creating a repository
 269   (
 270     if ! flock -n 9 ; then
 271       echo "Cache repository is busy."
 272       return 1
 273     fi
 274     echo "Purging the download cache..."
 275     rm -rf --one-file-system $dlcache $rtcache || return 1
 276     echo "Done."
 277     return 0
 278   ) 9> @LOCALSTATEDIR@/lock/subsys/lxc-plamo
 279 }
 280
 281 usage() {
 282   cat <<- EOF
 283         $prog [-h|--help] -p|--path=<path> -n|--name=<name> --rootfs=<rootfs>
 284                   [-c|--clean] [-r|--release=<release>] [-a|--arch=<arch>]
 285                   [-b|--bindhome=<user>]
 286         release: $release
 287         arch: x86 or x86_64: defaults to host arch
 288         bindhome: bind <user>'s home into the container
 289         EOF
 290 }
 291
 292 prog=`basename $0`
 293 path="" ; name="" ; rootfs=""
 294 clean=0
 295 release=${release:-5.x}
 296 arch=`uname -m | sed 's/i.86/x86/'` ; hostarch=$arch
 297 bindhome=""
 298 sopts=hp:n:cr:a:b:
 299 lopts=help,path:,name:,rootfs:,clean,release:,arch:,bindhome:
 300 if ! options=`getopt -o $sopts -l $lopts -- "$@"` ; then
 301   usage
 302   exit 1
 303 fi
 304 eval set -- "$options"
 305 while true ; do
 306   case "$1" in
 307   -h|--help) usage && exit 0 ;;
 308   -p|--path) path=$2 ; shift 2 ;;
 309   -n|--name) name=$2 ; shift 2 ;;
 310   --rootfs) rootfs=$2 ; shift 2 ;;
 311   -c|--clean) clean=1 ; shift 1 ;;
 312   -r|--release) release=$2 ; shift 2 ;;
 313   -a|--arch) arch=$2 ; shift 2 ;;
 314   -b|--bindhome) bindhome=$2 ; shift 2 ;;
 315   --) shift 1 ; break ;;
 316   *) break ;;
 317   esac
 318 done
 319 if [ $clean -eq 1 -a -z "$path" ] ; then
 320   cleanup || exit 1
 321   exit 0
 322 fi
 323 if [ $hostarch == "x86" -a $arch == "x86_64" ] ; then
 324   echo "Can't create x86_64 container on x86."
 325   exit 1
 326 fi
 327 if [ -z "$path" ] ; then
 328   echo "'path' parameter is required."
 329   exit 1
 330 fi
 331 if [ -z "$name" ] ; then
 332   echo "'name' parameter is required."
 333   exit 1
 334 fi
 335 if [ `id -u` -ne 0 ] ; then
 336   echo "This script should be run as 'root'."
 337   exit 1
 338 fi
 339 cache="${LXC_CACHE_PATH:-@LOCALSTATEDIR@/cache/lxc}"
 340 ptcache=$cache/partial-${prog##*-}-$release-$arch
 341 dlcache=$cache/cache-${prog##*-}-$release-$arch
 342 rtcache=$cache/rootfs-${prog##*-}-$release-$arch
 343 if [ -z "$rootfs" ] ; then
 344   if grep -q "^lxc.rootfs" $path/config ; then
 345     rootfs=`awk -F= '/^lxc.rootfs =/{ print $2 }' $path/config`
 346   else
 347     rootfs=$path/rootfs
 348   fi
 349 fi
 350 if ! install_plamo ; then
 351   echo "Failed to install plamo $release."
 352   exit 1
 353 fi
 354 if ! configure_plamo ; then
 355   echo "Failed to configure plamo $release for a container."
 356   exit 1
 357 fi
 358 if ! copy_configuration ; then
 359   echo "Failed to write configuration file."
 360   exit 1
 361 fi
 362 post_process
 363 if [ -n "$bindhome" ] ; then
 364   do_bindhome
 365 fi
 366 if [ $clean -eq 1 ] ; then
 367   cleanup || exit 1
 368   exit 0
 369 fi