1 # Copyright (C) 2011 GRNET S.A.
2 # Copyright (C) 2007, 2008, 2009 Google Inc.
4 # This program is free software; you can redistribute it and/or modify
5 # it under the terms of the GNU General Public License as published by
6 # the Free Software Foundation; either version 2 of the License, or
7 # (at your option) any later version.
9 # This program is distributed in the hope that it will be useful, but
10 # WITHOUT ANY WARRANTY; without even the implied warranty of
11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 # General Public License for more details.
14 # You should have received a copy of the GNU General Public License
15 # along with this program; if not, write to the Free Software
16 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
24 INSTALL_MBR="install-mbr"
29 pithos_backend_support="@pithos_backend_support@"
30 network_backend_support="@network_backend_support@"
36 for arg; do cmd+=$(printf "%q " "$arg"); done
44 get_api5_arguments() {
46 # Note the quotes around `$TEMP': they are essential!
47 eval set -- "$GETOPT_RESULT"
50 -i|-n) instance=$2; shift 2;;
52 -o) old_name=$2; shift 2;;
54 -b) blockdev=$2; shift 2;;
56 -s) swapdev=$2; shift 2;;
60 *) log_error "Internal error!" >&2; exit 1;;
63 if [ -z "$instance" -o -z "$blockdev" ]; then
64 log_error "Missing OS API Argument (-i, -n, or -b)"
67 if [ "$SCRIPT_NAME" != "export" -a -z "$swapdev" ]; then
68 log_error "Missing OS API Argument -s (swapdev)"
71 if [ "$SCRIPT_NAME" = "rename" -a -z "$old_name" ]; then
72 log_error "Missing OS API Argument -o (old_name)"
77 get_api10_arguments() {
78 if [ -z "$INSTANCE_NAME" -o -z "$HYPERVISOR" -o -z "$DISK_COUNT" ]; then
79 log_error "Missing OS API Variable:"
80 log_error "(INSTANCE_NAME HYPERVISOR or DISK_COUNT)"
83 instance=$INSTANCE_NAME
84 if [ $DISK_COUNT -lt 1 -o -z "$DISK_0_PATH" ]; then
85 log_error "At least one disk is needed"
88 if [ "$SCRIPT_NAME" = "export" ]; then
89 if [ -z "$EXPORT_DEVICE" ]; then
90 log_error "Missing OS API Variable EXPORT_DEVICE"
92 blockdev=$EXPORT_DEVICE
93 elif [ "$SCRIPT_NAME" = "import" ]; then
94 if [ -z "$IMPORT_DEVICE" ]; then
95 log_error "Missing OS API Variable IMPORT_DEVICE"
97 blockdev=$IMPORT_DEVICE
101 if [ "$SCRIPT_NAME" = "rename" -a -z "$OLD_INSTANCE_NAME" ]; then
102 log_error "Missing OS API Variable OLD_INSTANCE_NAME"
104 old_name=$OLD_INSTANCE_NAME
107 get_api20_arguments() {
109 if [ -z "$OSP_IMG_ID" ]; then
110 log_error "Missing OS API Parameter: OSP_IMG_ID"
113 if [ -z "$OSP_IMG_FORMAT" ]; then
114 log_error "Missing OS API Parameter: OSP_IMG_FORMAT"
117 if [ -z "$OSP_IMG_PASSWD" ]; then
118 log_error "Missing OS API Parameter: OSP_IMG_PASSWD"
123 IMG_FORMAT=$OSP_IMG_FORMAT
124 IMG_PASSWD=$OSP_IMG_PASSWD
125 if [ -n "$OSP_IMG_PROPERTIES" ]; then
126 IMG_PROPERTIES="$OSP_IMG_PROPERTIES"
128 if [ -n "$OSP_IMG_PERSONALITY" ]; then
129 IMG_PERSONALITY="$OSP_IMG_PERSONALITY"
135 filesystem_dev_base=$($KPARTX -l -p- $blockdev | \
136 grep -m 1 -- "-1.*$blockdev" | \
138 if [ -z "$filesystem_dev_base" ]; then
139 log_error "Cannot interpret kpartx output and get partition mapping"
142 $KPARTX -a -p- "$blockdev" > /dev/null
143 filesystem_dev="/dev/mapper/${filesystem_dev_base/%-1/}"
144 if [ ! -b "/dev/mapper/$filesystem_dev_base" ]; then
145 log_error "Can't find kpartx mapped partition:" \
146 "/dev/mapper/$filesystem_dev_base"
149 echo "$filesystem_dev"
158 local image_type="$2"
160 declare -A part_id=( ['extdump']="83" ["ntfsdump"]="7" )
162 # The -f is needed, because we use an optimal alignment and sfdisk complains
163 # about partitions not ending on clylinder boundary.
164 local sfdisk_cmd="$SFDISK -uS -H 255 -S 63 -f --quiet --Linux --DOS $device"
166 $sfdisk_cmd > /dev/null <<EOF
167 2048,,${part_id["$image_type"]},*
174 local target=$(mktemp -d)
175 add_cleanup rmdir "$target"
177 dd bs=512 count=2880 if=/dev/zero of="$img"
178 mkfs.ext2 -F "$img" > /dev/null
179 mount "$img" "$target" -o loop
180 set | egrep ^snf_export_\\w+= | sed -e 's/^snf_export_/export SNF_IMAGE_/' \
188 if [[ "$id" =~ ^pithos: ]]; then
189 if [ "$pithos_backend_support" = "yes" ]; then
192 log_error "Retrieving images from pithos is not supported"
195 elif [[ "$id" =~ ^(http|ftp)s?: ]]; then
196 if [ "$network_backend_support" = "yes" ]; then
199 log_error "Retrieving images from the network is not supported."
207 # this one is only to be called by create
209 if [ -z "$OS_API_VERSION" -o "$OS_API_VERSION" = "5" ]; then
211 GETOPT_RESULT=`getopt -o o:n:i:b:s: -n '$0' -- "$@"`
212 if [ $? != 0 ] ; then log_error "Terminating..."; exit 1 ; fi
213 get_api5_arguments $GETOPT_RESULT
214 elif [ "$OS_API_VERSION" = "10" -o "$OS_API_VERSION" = "15" ]; then
216 elif [ "$OS_API_VERSION" = "20" ]; then
219 IMAGE_TYPE="$IMG_FORMAT"
220 BACKEND_TYPE=$(get_backend_type $IMG_ID)
222 log_error "Unknown OS API VERSION $OS_API_VERSION"
226 if [ -n "$OS_VARIANT" ]; then
227 if [ ! -d "$VARIANTS_DIR" ]; then
228 log_error "OS Variants directory $VARIANTS_DIR doesn't exist"
231 VARIANT_CONFIG="$VARIANTS_DIR/$OS_VARIANT.conf"
232 if [ -f "$VARIANT_CONFIG" ]; then
235 if grep -qxF "$OS_VARIANT" variants.list; then
236 log_error "ERROR: instance-image configuration error"
237 log_error " Published variant $OS_VARIANT is missing its" \
239 log_error " Please create $VARIANT_CONFIG or unpublish the" \
241 log_error " (by removing $OS_VARIANT from variants.list)"
243 log_error "Unofficial variant $OS_VARIANT is unsupported"
244 log_error "Most probably this is a user error, forcing a" \
246 log_error "To support this variant please create file" \
258 echo "Debootstraping to create a new root filesystem:"
260 # Create a policy-rc.d file to deny init script execution
261 mkdir -p "$target/usr/sbin"
262 cat > "$target/usr/sbin/policy-rc.d" <<EOF
266 chmod +x "$target/usr/sbin/policy-rc.d"
268 debootstrap --arch $(dpkg --print-architecture) \
269 --include "$HELPER_EXTRA_PKGS" --variant=minbase stable "$target" \
270 "$HELPER_MIRROR" 2>&1 | sed -e 's/^/DEBOOTSTRAP: /g'
272 # Save the package list
273 chroot "$target" dpkg-query -W -f "\${Package}\n" > "$HELPER_CACHE_PKGS"
275 rm "$target/usr/sbin/policy-rc.d"
277 # remove the downloaded debs, as they are no longer needed
278 find "$target/var/cache/apt/archives" -type f -name '*.deb' -print0 | \
281 local tmp_cache=$(mktemp "$CACHE_FILE.XXXXXX")
282 tar cf "$tmp_cache" --one-file-system -C "$target" . || \
283 { rm "$tmp_cache"; false; }
284 # Overwrite the default cache file. Not the user specified if present.
285 mv -f "$tmp_cache" "$HELPER_CACHE_FILE"
289 # if something fails here, it souldn't call cleanup again...
291 if [ ${#CLEANUP[*]} -gt 0 ]; then
292 LAST_ELEMENT=$((${#CLEANUP[*]}-1))
293 REVERSE_INDEXES=$(seq ${LAST_ELEMENT} -1 0)
294 for i in $REVERSE_INDEXES; do
295 # If something fails here, it's better to retry it for a few times
296 # before we give up with an error. This is needed for kpartx when
297 # dealing with ntfs partitions mounted through fuse. umount is not
298 # synchronous and may return while the partition is still busy. A
299 # premature attempt to delete partition mappings through kpartx on a
300 # device that hosts previously mounted ntfs partition may fail with
301 # an `device-mapper: remove ioctl failed: Device or resource busy'
302 # error. A sensible workaround for this is to wait for a while and
304 local cmd=${CLEANUP[$i]}
305 $cmd || for interval in 0.25 0.5 1 2 4; do
306 echo "Command $cmd failed!"
307 echo "I'll wait for $interval secs and will retry..."
311 if [ "$?" != "0" ]; then
321 DEFAULT_FILE="@sysconfdir@/default/snf-image"
322 if [ -f "$DEFAULT_FILE" ]; then
326 : ${VARIANTS_DIR:="@sysconfdir@/ganeti/snf-image/variants"}
327 : ${IMAGE_DIR:="@localstatedir@/lib/snf-image"}
328 : ${HELPER_DIR:="@HELPER_DIR@"}
329 : ${HELPER_IMG:="@HELPER_IMG@"}
330 : ${HELPER_KERNEL:="@HELPER_KERNEL@"}
331 : ${HELPER_INITRD:="@HELPER_INITRD@"}
332 : ${HELPER_PKG:="@HELPER_DIR@/snf-image-helper.deb"}
333 : ${HELPER_SOFT_TIMEOUT:=15}
334 : ${HELPER_HARD_TIMEOUT:=5}
335 : ${HELPER_USER:="nobody"}
336 : ${HELPER_CACHE_FILE:="@HELPER_DIR@/cache.tar"}
337 : ${HELPER_CACHE_PKGS:="@HELPER_DIR@/packages"}
338 : ${HELPER_EXTRA_PKGS:="linux-image-amd64,e2fsprogs,ntfs-3g,ntfsprogs,xmlstarlet,python,parted,reglookup,chntpw,util-linux"}
339 : ${HELPER_MIRROR:=""}
340 : ${PITHOS_DB:="sqlite:////@localstatedir@/lib/pithos/backend.db"}
341 : ${PITHOS_DATA:="@localstatedir@/lib/pithos/data/"}
342 : ${PROGRESS_MONITOR:="@PROGRESS_MONITOR@"}
344 SCRIPT_NAME=$(basename $0)
346 if [ -f /sbin/blkid -a -x /sbin/blkid ]; then
347 VOL_ID="/sbin/blkid -c /dev/null -o value -s UUID"
348 VOL_TYPE="/sbin/blkid -c /dev/null -o value -s TYPE"
350 for dir in /lib/udev /sbin; do
351 if [ -f $dir/vol_id -a -x $dir/vol_id ]; then
352 VOL_ID="$dir/vol_id -u"
353 VOL_TYPE="$dir/vol_id -t"
358 if [ -z "$VOL_ID" ]; then
359 log_error "vol_id or blkid not found, please install udev or util-linux"
363 # vim: set sta sts=4 shiftwidth=4 sw=4 et ai :