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Make ubuntu-core support releases

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Right now we hard code in a path for an alpha release image. There are
release of ubuntu-core now so lets support them.

Change-Id: Ice989d32e0910cbbfb711e06adb33b07682856c9
This commit is contained in:
Gregory Haynes 2016-03-17 16:40:10 +00:00
parent 3fca968164
commit 71eab09539
1 changed files with 47 additions and 63 deletions
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78
elements/ubuntu-core/root.d/10-cache-ubuntu-image
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@ -12,22 +12,30 @@ set -o pipefail
shopt -s extglob
DIB_CLOUD_IMAGES=${DIB_CLOUD_IMAGES:-http://cdimage.ubuntu.com/ubuntu-core/preview}
DIB_RELEASE=${DIB_RELEASE:-alpha-01}
BASE_IMAGE_FILE=${BASE_IMAGE_FILE:-ubuntu-core-$DIB_RELEASE.img}
BASE_IMAGE_TAR=$DIB_RELEASE-ubuntu-core.tgz
DIB_RELEASE=${DIB_RELEASE:-trusty}
declare -A release_numbers
release_numbers[precise]=12.04
release_numbers[trusty]=14.04
release_numbers[vivid]=15.04
release_numbers[wily]=15.10
numeric_release=${release_numbers[$DIB_RELEASE]}
DIB_CLOUD_IMAGES=${DIB_CLOUD_IMAGES:-http://cdimage.ubuntu.com/ubuntu-core/releases/$numeric_release/release}
BASE_IMAGE_FILE=${BASE_IMAGE_FILE:-ubuntu-core-$numeric_release-core-$ARCH.tar.gz}
SHA256SUMS=${SHA256SUMS:-$DIB_CLOUD_IMAGES/SHA256SUMS}
CACHED_FILE=$DIB_IMAGE_CACHE/$BASE_IMAGE_FILE
CACHED_TAR=$DIB_IMAGE_CACHE/$BASE_IMAGE_TAR
CACHED_SUMS=$DIB_IMAGE_CACHE/SHA256SUMS.ubuntu-core.$DIB_RELEASE
CACHED_FILE_LOCK=$DIB_IMAGE_CACHE/$BASE_IMAGE_FILE.lock
CACHED_SUMS=$DIB_IMAGE_CACHE/SHA256SUMS.ubuntu-core.$DIB_RELEASE.$ARCH
if [ -n "$DIB_OFFLINE" -a -f "$CACHED_TAR" ] ; then
echo "Not checking freshness of cached $CACHED_TAR"
else
function get_ubuntu_tarball() {
if [ -n "$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 $SHA256SUMS $CACHED_SUMS
$TMP_HOOKS_PATH/bin/cache-url $DIB_CLOUD_IMAGES/$BASE_IMAGE_FILE $CACHED_FILE
$TMP_HOOKS_PATH/bin/cache-url \
$DIB_CLOUD_IMAGES/$BASE_IMAGE_FILE $CACHED_FILE
pushd $DIB_IMAGE_CACHE
if ! grep "$BASE_IMAGE_FILE" $CACHED_SUMS | sha256sum --check - ; then
# It is likely that an upstream http(s) proxy has given us a skewed
@ -44,42 +52,18 @@ else
fi
fi
popd
if [ ! -f $CACHED_TAR -o \
$DIB_IMAGE_CACHE/$BASE_IMAGE_FILE -nt $CACHED_TAR ] ; then
echo "Repacking base image as tarball."
WORKING=$(mktemp -d)
EACTION="rm -r $WORKING"
trap "$EACTION" EXIT
RAW_FILE=$(mktemp --tmpdir=$WORKING XXXXXX.raw)
qemu-img convert -f qcow2 -O raw $CACHED_FILE $RAW_FILE
MAGIC_BIT=p1
# NOTE: On RHEL, partprobe of /dev/loop0 does not create /dev/loop0p2,
# while kpartx at least creates /dev/mapper/loop0p2.
LOOPDEV=$(sudo kpartx -av $RAW_FILE | awk "/loop[0-9]+$MAGIC_BIT/ {print \$3}")
# If running inside Docker, make our nodes manually, because udev will not be working.
if [ -f /.dockerenv ]; then
sudo dmsetup --noudevsync mknodes
fi
export LOOPDEV=$LOOPDEV
echo "Loop device is set to: $LOOPDEV"
if ! timeout 5 sh -c "while ! [ -e /dev/mapper/$LOOPDEV ]; do sleep 1; done"; then
echo "Error: Could not find /dev/mapper/$LOOPDEV"
# Extract the base image (use --numeric-owner to avoid UID/GID mismatch between
# image tarball and host OS e.g. when building Ubuntu image on an openSUSE host)
sudo tar -C $TARGET_ROOT --numeric-owner -xzf $DIB_IMAGE_CACHE/$BASE_IMAGE_FILE
}
(
echo "Getting $CACHED_FILE_LOCK: $(date)"
# Wait up to 20 minutes for another process to download
if ! flock -w 1200 9 ; then
echo "Did not get $CACHED_FILE_LOCK: $(date)"
exit 1
fi
EACTION="sudo kpartx -d $RAW_FILE;$EACTION"
trap "$EACTION" EXIT
mkdir $WORKING/mnt
sudo mount /dev/mapper/$LOOPDEV $WORKING/mnt
EACTION="sudo umount -f $WORKING/mnt;$EACTION"
trap "$EACTION" EXIT
# Chroot in so that we get the correct uid/gid
sudo chroot $WORKING/mnt bin/tar -cz . > $WORKING/tmp.tar
mv $WORKING/tmp.tar $DIB_IMAGE_CACHE/$BASE_IMAGE_TAR
fi
fi
# Extract the base image (use --numeric-owner to avoid UID/GID mismatch between
# image tarball and host OS e.g. when building Ubuntu image on an openSUSE host)
sudo tar -C $TARGET_ROOT --numeric-owner -xzf $DIB_IMAGE_CACHE/$BASE_IMAGE_TAR
get_ubuntu_tarball
) 9> $CACHED_FILE_LOCK