create

#!/bin/bash

# Stolen from ganeti-instance-debootstrap-0.7

# Copyright (C) 2007, 2008, 2009 Google Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA.

set -e

if [ "$DEBUG_LEVEL" != "0" ] ; then
  set -x
  env
fi

. common.sh
. opensuse.sh

CLEANUP=( )

trap cleanup EXIT

if [ "$GENERATE_CACHE" = "yes" -a ! -d "$CACHE_DIR" ]; then
  $MAKEDIR_P "$CACHE_DIR"
fi

CACHE_FILE="$CACHE_DIR/cache-opensuse-${VERSION}.tar"

# If the target device is not a real block device we'll first losetup it.
# This is needed for file disks.
if [ ! -b $blockdev ]; then
  ORIGINAL_BLOCKDEV=$blockdev
  blockdev=$($LOSETUP -sf $blockdev)
  CLEANUP+=("$LOSETUP -d $blockdev")
fi

if [ "$PARTITION_STYLE" = "none" ]; then
  filesystem_dev=$blockdev
elif [ "$PARTITION_STYLE" = "msdos" ]; then
  # Create one big partition, and make it bootable
  format_disk0 $blockdev
  filesystem_dev=$(map_disk0 $blockdev)
  CLEANUP+=("unmap_disk0 $blockdev")
else
  echo "Unknown partition style $PARTITION_STYLE"
  exit 1
fi

mke2fs -Fjq $filesystem_dev
root_uuid=$($VOL_ID -u $filesystem_dev )

if [ -n "$swapdev" ]; then
  mkswap $swapdev
  swap_uuid=$($VOL_ID -u $swapdev || true )
fi

TMPDIR=`mktemp -d` || exit 1
CLEANUP+=("rmdir $TMPDIR")

mount $filesystem_dev $TMPDIR
CLEANUP+=("umount $TMPDIR")

# Remove the cache file if it's old and writable by the owner (the
# default due to the standard umask)
if [ "$CLEAN_CACHE" -a -d "$CACHE_DIR" ]; then
  find "$CACHE_DIR" -name 'cache-*.tar' -type f \
    -daystart -mtime "+${CLEAN_CACHE}" -print0 | \
    xargs -r0 rm -f
fi

if [ -f "$CACHE_FILE" ]; then
  tar xf "$CACHE_FILE" -C $TMPDIR
else
  if [ "$PROXY" ]; then
    export http_proxy="$PROXY"
  fi

  opensuse_bootstrap $TMPDIR

  if [ "$GENERATE_CACHE" = "yes" ]; then
    TMP_CACHE=`mktemp "${CACHE_FILE}.XXXXXX"`
    tar cf "$TMP_CACHE" -C $TMPDIR .
    mv -f "$TMP_CACHE" "$CACHE_FILE"
  fi
fi

cp -p /etc/hosts $TMPDIR/etc/hosts
cp -p /etc/resolv.conf $TMPDIR/etc/resolv.conf
echo $instance > $TMPDIR/etc/hostname
echo $instance > $TMPDIR/etc/mailname

cat > $TMPDIR/etc/fstab <<EOF
# /etc/fstab: static file system information.
#
# <file system>   <mount point>   <type>  <options>       <dump>  <pass>
UUID=$root_uuid   /               ext3    defaults        0       1
proc              /proc           proc    defaults        0       0
EOF

[ -n "$swapdev" -a -n "$swap_uuid" ] && cat >> $TMPDIR/etc/fstab <<EOF
UUID=$swap_uuid   swap            swap    defaults        0       0
EOF

if [ -e $TMPDIR/etc/inittab ]; then
  cat $TMPDIR/etc/inittab | sed -re 's/\stty1$/ console/' \
    > $TMPDIR/etc/inittab.new
  mv $TMPDIR/etc/inittab.new $TMPDIR/etc/inittab
elif [ -e $TMPDIR/etc/event.d/tty1 ]; then
  cat $TMPDIR/etc/event.d/tty1 | sed -re 's/tty1/console/' \
    > $TMPDIR/etc/event.d/console
  rm $TMPDIR/etc/event.d/tty1
fi

if [ -n "$CUSTOMIZE_DIR" -a -d "$CUSTOMIZE_DIR" ]; then
  for script in `ls $CUSTOMIZE_DIR | sort`; do
    chroot $TMPDIR $script
  done
fi

# execute cleanups
set +e
cleanup
trap - EXIT

exit 0