#
# TODO: image resize is needed if the base image is too small
#
-
set -e
+set -x
die() {
echo "error: $1" >&2
exit 1
}
-test $# -eq 1 || die "no image specific script as argument"
+test $# -eq 1 -o $# -eq 2 || die "no image specific script as argument"
test $(id -u) -eq 0 || die "should invoke using sudo"
cmd=$1
+RELEASE=$2
test -x $cmd
mountdir="/mnt/yardstick"
-
workspace=${WORKSPACE:-"/tmp/workspace/yardstick"}
host=${HOST:-"cloud-images.ubuntu.com"}
-release=${RELEASE:-"trusty"}
-image_path="${release}/current/${release}-server-cloudimg-amd64-disk1.img"
+release=${RELEASE:-"xenial"}
+boot_mode="disk1"
+if [[ "${YARD_IMG_ARCH}" = "arm64" ]]; then
+ boot_mode="uefi1"
+fi
+
+image_path="${release}/current/${release}-server-cloudimg-${YARD_IMG_ARCH}-${boot_mode}.img"
image_url=${IMAGE_URL:-"https://${host}/${image_path}"}
-md5sums_path="${release}/current/MD5SUMS"
-md5sums_url=${MD5SUMS_URL:-"https://${host}/${md5sums_path}"}
+sha256sums_path="${release}/current/SHA256SUMS"
+sha256sums_url=${SHA256SUMS_URL:-"https://${host}/${sha256sums_path}"}
-imgfile="${workspace}/yardstick-${release}-server.img"
+imgfile="${workspace}/yardstick-image.img"
+raw_imgfile_basename="yardstick-${release}-server.raw"
+raw_imgfile="${workspace}/${raw_imgfile_basename}"
filename=$(basename $image_url)
+apt-get install -y parted
+
# download and checksum base image, conditionally if local copy is outdated
download() {
test -d $workspace || mkdir -p $workspace
cd $workspace
- rm -f MD5SUMS # always download the checksum file to a detect stale image
- wget $md5sums_url
- test -e $filename || wget -nc $image_url
- grep $filename MD5SUMS | md5sum -c ||
+ rm -f SHA256SUMS # always download the checksum file to a detect stale image
+ wget $sha256sums_url
+ test -e $filename || wget -nc --progress=dot:giga $image_url
+ grep $filename SHA256SUMS | sha256sum -c ||
if [ $? -ne 0 ]; then
rm $filename
- wget -nc $image_url
- grep $filename MD5SUMS | md5sum -c
+ wget -nc --progress=dot:giga $image_url
+ grep $filename SHA256SUMS | sha256sum -c
fi
- cp $filename $imgfile
+
+ for i in $(seq 0 9); do
+ [ -a /dev/loop$i ] || mknod -m 660 /dev/loop$i b 7 $i
+ done
+
+ qemu-img convert $filename $raw_imgfile
cd -
}
# mount image
setup() {
+ # qemu-img resize $raw_imgfile +5GB
mkdir -p $mountdir
- if [ -f /etc/centos-release ]; then
- # CentOS, mount image using guestmount.
- # (needs libguestfs-tools installed)
- export LIBGUESTFS_BACKEND=direct
- guestmount -a $imgfile -i --rw $mountdir
- else
- # mount image using qemu-nbd
- modprobe nbd max_part=16
- qemu-nbd -c /dev/nbd0 $imgfile
- partprobe /dev/nbd0
-
- mount /dev/nbd0p1 $mountdir
- fi
+
+ loopdevice=$(kpartx -l $raw_imgfile | head -1 | cut -f1 -d ' ')
+
+ kpartx -av $raw_imgfile
+
+ # for trouble shooting
+ sleep 2
+ dmsetup ls
+ parted -l /dev/${loopdevice:0:5} || true
+ mount /dev/mapper/$loopdevice $mountdir
+ mount -t proc none $mountdir/proc
+
cp $cmd $mountdir/$(basename $cmd)
+ if [ "${YARD_IMG_ARCH}" = "arm64" ]; then
+ cp /usr/bin/qemu-aarch64-static $mountdir/usr/bin
+ fi
}
# modify image running a script using in a chrooted environment
# resolv.conf does not exist in base image, pass nameserver value from host
nameserver_ip=$(grep -m 1 '^nameserver' \
/etc/resolv.conf | awk '{ print $2 '})
+
+ # prevent init scripts from running during install
+ echo $'#!/bin/sh\nexit 101' >$mountdir/usr/sbin/policy-rc.d
+ chmod a+x $mountdir/usr/sbin/policy-rc.d
+
chroot $mountdir /$(basename $cmd) $nameserver_ip
+
+ rm -rf $mountdir/usr/sbin/policy-rc.d
+
+ umount -f $mountdir/proc
+ umount $mountdir
+
+ qemu-img convert -c -o compat=0.10 -O qcow2 $raw_imgfile $imgfile
+
+ if dmsetup table | grep $loopdevice; then
+ dmsetup clear $loopdevice || true
+ fi
}
# cleanup (umount) the image
cleanup() {
# designed to be idempotent
+ mount | grep $mountdir/proc && umount $mountdir/proc
mount | grep $mountdir && umount $mountdir
- test -b /dev/nbd0 && partprobe /dev/nbd0
- pgrep qemu-nbd && qemu-nbd -d /dev/nbd0
+ mount | grep "/mnt/${release}" && umount "/mnt/${release}"
+
+ if [ -f "${raw_imgfile}" ]; then
+ #kpartx -dv $raw_imgfile sometimes failed, we should checked it agein.
+ #if [ -z "$(kpartx -l $raw_imgfile | grep 'loop deleted')" ]; then
+ # kpartx -dv $raw_imgfile
+ #fi
+ kpartx -dv $raw_imgfile || true
+ fi
+
+ rm -f $raw_imgfile
rm -rf $mountdir
- killall qemu-nbd 2> /dev/null || true
- lsmod | grep nbd && rmmod nbd || true
+}
+
+exitcode=""
+error_trap()
+{
+ local rc=$?
+
+ set +e
+
+ if [ -z "$exitcode" ]; then
+ exitcode=$rc
+ fi
+
+ dmesg -T | tail -50
+
+ cleanup
+
+ echo "Image build failed with $exitcode"
+
+ exit $exitcode
}
main() {
cleanup
+
+ trap "error_trap" EXIT SIGTERM
+
download
setup
modify
+
+ trap - EXIT SIGTERM
cleanup
echo "the modified image is found here: $imgfile"