sig_cloud/diskimage-builder
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Create (md5|sha256) checksum files for images

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In shade, we use both md5 and sha256 checksums to help validate the
integrity of an image. Rather then having nodepool do this each time
for every time, have diskimage-builder create these files when we
build the image.

We've added a flag (disabled by default) to toggle this functionality.

Change-Id: I5815ba69b7d477f1e91dc8ec0c69c86168770964
Signed-off-by: Paul Belanger <pabelanger@redhat.com>
This commit is contained in:
Paul Belanger 2016-09-30 15:59:46 -04:00
parent b0d72a3161
commit 2ea5feca5c
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GPG Key ID: 611A80832067AF38
3 changed files with 14 additions and 1 deletions
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4
bin/disk-image-create
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@ -109,6 +109,7 @@ function show_options () {
echo " -x -- turn on tracing (use -x -x for very detailed tracing)"
echo " -u -- uncompressed; do not compress the image - larger but faster"
echo " -c -- clear environment before starting work"
echo " --checksum -- generate MD5 and SHA256 checksum files for the created image"
echo " --image-size size -- image size in GB for the created image"
echo " --image-cache directory -- location for cached images(default ~/.cache/image-create)"
echo " --max-online-resize size -- max number of filesystem blocks to support when resizing."
@ -172,7 +173,7 @@ DIB_DEFAULT_INSTALLTYPE=${DIB_DEFAULT_INSTALLTYPE:-"source"}
MKFS_OPTS=""
ACI_MANIFEST=${ACI_MANIFEST:-}
DOCKER_TARGET=""
TEMP=`getopt -o a:ho:t:xucnp: -l no-tmpfs,offline,help,version,min-tmpfs:,image-size:,image-cache:,max-online-resize:,mkfs-options:,qemu-img-options:,ramdisk-element:,root-label:,install-type:,docker-target: -n $SCRIPTNAME -- "$@"`
TEMP=`getopt -o a:ho:t:xucnp: -l checksum,no-tmpfs,offline,help,version,min-tmpfs:,image-size:,image-cache:,max-online-resize:,mkfs-options:,qemu-img-options:,ramdisk-element:,root-label:,install-type:,docker-target: -n $SCRIPTNAME -- "$@"`
if [ $? -ne 0 ] ; then echo "Terminating..." >&2 ; exit 1 ; fi
# Note the quotes around `$TEMP': they are essential!
@ -190,6 +191,7 @@ while true ; do
-c) shift ; export CLEAR_ENV=1;;
-n) shift; export SKIP_BASE="1";;
-p) IFS="," read -a INSTALL_PACKAGES <<< "$2"; export INSTALL_PACKAGES ; shift 2 ;;
--checksum) shift; export DIB_CHECKSUM=1;;
--image-size) export DIB_IMAGE_SIZE=$2; shift 2;;
--image-cache) export DIB_IMAGE_CACHE=$2; shift 2;;
--max-online-resize) export MAX_ONLINE_RESIZE=$2; shift 2;;

1
lib/common-defaults
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@ -34,6 +34,7 @@ fi
ARCH=${ARCH:-$_ARCH}
export ARCH
export DIB_CHECKSUM=${DIB_CHECKSUM:-0}
export DIB_NO_TMPFS=${DIB_NO_TMPFS:-0}
export DIB_MIN_TMPFS=${DIB_MIN_TMPFS:-2}
# Set via the CLI normally.

10
lib/common-functions
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@ -51,9 +51,19 @@ function finish_image () {
old_image="${1%.*}"-$(date +%Y.%m.%d-%H.%M.%S).${1##*.}
echo "Old image found. Renaming it to $old_image"
mv "$1" "$old_image"
if [ -f "$1.md5" ]; then
mv "$1.md5" "$old_image.md5"
fi
if [ -f "$1.sha256" ]; then
mv "$1.sha256" "$old_image.sha256"
fi
fi
mv $OUT_IMAGE_PATH $1
if [ "$DIB_CHECKSUM" == "1" ]; then
md5sum $1 > $1.md5
sha256sum $1 > $1.sha256
fi
echo "Image file $1 created..."
}