root / snf-image-host / create @ 55d2fc47
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#!/bin/bash |
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# Copyright 2011 GRNET S.A. All rights reserved. |
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# |
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# Redistribution and use in source and binary forms, with or without |
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# modification, are permitted provided that the following conditions |
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# are met: |
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# |
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# 1. Redistributions of source code must retain the above copyright |
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# notice, this list of conditions and the following disclaimer. |
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# |
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# 2. Redistributions in binary form must reproduce the above copyright |
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# notice, this list of conditions and the following disclaimer in the |
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# documentation and/or other materials provided with the distribution. |
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# |
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# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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# SUCH DAMAGE. |
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# |
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# The views and conclusions contained in the software and documentation are |
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# those of the authors and should not be interpreted as representing official |
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# policies, either expressed or implied, of GRNET S.A. |
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|
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set -e |
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set -o pipefail |
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|
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. common.sh |
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|
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ganeti_os_main |
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|
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case "$IMAGE_TYPE" in |
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extdump) |
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image_file="$IMAGE_DIR/$IMAGE_NAME-$ARCH.extdump";; |
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ntfsdump) |
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image_file="$IMAGE_DIR/$IMAGE_NAME-$ARCH.ntfsdump";; |
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*) |
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log_error "Unknown image type: \`$IMAGE_TYPE'."; |
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exit 1 |
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esac |
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|
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if [ ! -e "$image_file" ]; then |
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log_error "Image file \`$image_file' does not exit." |
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exit 1 |
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fi |
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|
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monitor="" #Empty if progress monitor support is disabled |
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if [ "$progress_monitor_support" = "yes" ]; then |
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image_size="$(stat -L -c %s "$image_file")" |
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monitor="$(printf "%q" "$PROGRESS_MONITOR") \ |
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-i $(printf "%q" "$INSTANCE_NAME") -r $image_size" |
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fi |
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|
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# If the target device is not a real block device we'll first losetup it. |
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# This is needed for file disks. |
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if [ ! -b "$blockdev" ]; then |
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original_blockdev="$blockdev" |
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blockdev=$("$LOSETUP" -sf "$blockdev") |
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add_cleanup "$LOSETUP" -d "$blockdev" |
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fi |
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|
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format_disk0 "$blockdev" "$IMAGE_TYPE" |
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|
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filesystem_dev=$(map_disk0 "$blockdev") |
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add_cleanup unmap_disk0 "$blockdev" |
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|
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root_dev="${filesystem_dev}-1" |
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|
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# dd the dump to its new home :-) |
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# Deploying an image file on a target block device is a streaming |
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# copy operation. Enable the direct I/O flag on the output fd to |
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# avoid polluting the host cache with useless data. |
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$monitor dd bs=4M if="$image_file" of="$root_dev" oflag=direct |
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|
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# Create a floppy image |
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floppy=$(mktemp --tmpdir floppy.XXXXXX) |
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add_cleanup rm "$floppy" |
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|
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snf_export_DEV=/dev/vda |
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snf_export_TYPE="$IMG_FORMAT" |
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snf_export_PASSWORD="$IMG_PASSWD" |
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snf_export_HOSTNAME="$instance" |
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if [ -n "$IMG_PERSONALITY" ]; then |
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snf_export_PERSONALITY="$IMG_PERSONALITY" |
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fi |
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|
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create_floppy "$floppy" |
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|
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# Invoke the helper vm to do the dirty job... |
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result_file=$(mktemp --tmpdir result.XXXXXX) |
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add_cleanup rm "$result_file" |
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|
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snapshot=$(mktemp --tmpdir helperXXXXXX.img) |
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add_cleanup rm "$snapshot" |
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|
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"$QEMU_IMG" create -f qcow2 -b "$HELPER_IMG" "$snapshot" |
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|
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"$TIMELIMIT" -t "$HELPER_SOFT_TIMEOUT" -T "$HELPER_HARD_TIMEOUT" \ |
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kvm -runas "$HELPER_USER" -drive file="$snapshot" \ |
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-drive file="$root_dev",format=raw,if=virtio,cache=none \ |
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-boot c -serial stdio -serial file:"$result_file" \ |
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-fda "$floppy" -vga none -nographic -parallel none -monitor null \ |
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-kernel "$HELPER_KERNEL" -initrd "$HELPER_INITRD" \ |
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-append "quiet ro root=/dev/sda1 console=ttyS0,9600n8" \ |
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2>&1 | sed 's|^|HELPER: |g' |
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|
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if [ $? -ne 0 ]; then |
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if [ $? -gt 128 ]; then |
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log_error "Helper was terminated. Did not finish on time." |
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fi |
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exit 1 |
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fi |
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|
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# Read the first line. This will remove \r and \n chars |
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result=$(sed 's|\r||g' "$result_file" | xargs echo) |
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|
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if [ "x$result" != "xSUCCESS" ]; then |
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log_error "Helper VM returned error" |
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exit 1 |
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fi |
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|
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# Install a new MBR |
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"$INSTALL_MBR" -p 1 -i n "$blockdev" |
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|
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# Execute cleanups |
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cleanup |
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trap - EXIT |
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|
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exit 0 |
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|
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# vim: set sta sts=4 shiftwidth=4 sw=4 et ai : |