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#!/bin/bash
if [ ${DIB_DEBUG_TRACE:-0} -gt 0 ]; then
set -x
fi
set -eu
set -o pipefail
[ -n "$ARCH" ]
[ -n "$TARGET_ROOT" ]
if [ 'amd64' = "$ARCH" ] ; then
ARCH="x86_64"
fi
if ! [ 'x86_64' = "$ARCH" ] ; then
echo "Only x86_64 images are currently available but ARCH is set to $ARCH."
exit 1
fi
# Set some image defaults
case ${DIB_RELEASE} in
# Old Leap releases
42*)
OPENSUSE_IMAGE_BASEDIR=Leap
OPENSUSE_IMAGE_FILE=openSUSE-Leap-${DIB_RELEASE}-OpenStack
OPENSUSE_IMAGE_EXT=tbz
;;
# New Leap releases
15*)
OPENSUSE_IMAGE_BASEDIR=Leap
OPENSUSE_IMAGE_FILE=openSUSE-Leap-${DIB_RELEASE}-OpenStack
OPENSUSE_IMAGE_EXT=tar.xz
;;
# We handle unknown cases in environment.d/10-opensuse-distro-name.bash
esac
# NOTE(toabctl): if something changes here on the buildservice side, please
# first ask in #opensuse-cloud on freenode before you change the format here!
DIB_CLOUD_IMAGES=${DIB_CLOUD_IMAGES:-https://download.opensuse.org/repositories/Cloud:/Images:/${OPENSUSE_IMAGE_BASEDIR}_${DIB_RELEASE}/images/}
BASE_IMAGE_FILE=${BASE_IMAGE_FILE:-${OPENSUSE_IMAGE_FILE}-rootfs.${ARCH}.${OPENSUSE_IMAGE_EXT}}
SHA256SUMS_FILE=${SHA256SUMS_FILE:-${BASE_IMAGE_FILE}.sha256}
CACHED_FILE=$DIB_IMAGE_CACHE/$BASE_IMAGE_FILE
CACHED_SHA256SUMS_FILE=$DIB_IMAGE_CACHE/SHA256SUMS.$BASE_IMAGE_FILE
# FIXME: either check the checksums into git or verify the signature
# on the checksums. We should not be trusting checksums we download
# over HTTP
if [ -n "$DIB_OFFLINE" -a -f "$CACHED_FILE" ] ; then
echo "Not checking freshness of cached $CACHED_FILE."
else
echo "Fetching Base Image"
$TMP_HOOKS_PATH/bin/cache-url $DIB_CLOUD_IMAGES/$SHA256SUMS_FILE $CACHED_SHA256SUMS_FILE
$TMP_HOOKS_PATH/bin/cache-url $DIB_CLOUD_IMAGES/$BASE_IMAGE_FILE $CACHED_FILE
pushd $DIB_IMAGE_CACHE
# Calculate sha256sum of downloaded image and check against content from sha256 file
SHA256SUM=$(sha256sum ${BASE_IMAGE_FILE} | cut -d " " -f1)
grep -q $SHA256SUM SHA256SUMS.$BASE_IMAGE_FILE
popd
fi
# Extract the base image (use --numeric-owner to avoid UID/GID mismatch between
# image tarball and host OS)
sudo tar -C $TARGET_ROOT --numeric-owner -xf $CACHED_FILE
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