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[util-iso.sh] add snap support

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Philip Müller 2019-06-12 18:34:00 +02:00
parent 8c43a542d6
commit 1f4fda04dd
1 changed files with 59 additions and 0 deletions
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59
lib/util-iso.sh
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@ -239,6 +239,65 @@ reset_pac_conf(){
-i "$1/etc/pacman.conf"
}
# Snap support
# Adapted from:
# * https://blackboxsw.github.io/seed-snaps-using-maas.html
function seed_snaps() {
local SEED_DIR="/var/lib/snapd/seed"
local SEED_CHANNEL="${SEED_BRANCH}"
local SEED_SNAPS="${STRICT_SNAPS} ${CLASSIC_SNAPS}"
if [ -n "${STRICT_SNAPS}" ] || [ -n "${CLASSIC_SNAPS}" ]; then
# Preseeded snaps should be downloaded from a versioned channel
rm -rfv "${SEED_DIR}"
mkdir -p "${SEED_DIR}/snaps"
mkdir -p "${SEED_DIR}/assertions"
# Download the published snaps and their related assert files
# Runs inside the container
for SEED_SNAP in ${SEED_SNAPS}; do
if [ "${SEED_SNAP}" == "core" ] || [ "${SEED_SNAP}" == "core16" ] || [ "${SEED_SNAP}" == "core18" ]; then
snap download --channel=stable "${SEED_SNAP}"
else
snap download --channel="${SEED_CHANNEL}" "${SEED_SNAP}"
fi
done
# Move snaps and seertions to the correct place
# Runs outside the container.
mv -v ${R}/*.snap ${R}/${SEED_DIR}/snaps/
mv -v ${R}/*.assert ${R}/${SEED_DIR}/assertions/
# Create model and account assertions
# Runs inside the container.
snap known --remote model series=16 model=generic-classic brand-id=generic > ${R}/${SEED_DIR}/assertions/generic-classic.model
ACCOUNT_KEY=$(grep "^sign-key-sha3-384" ${R}/${SEED_DIR}/assertions/generic-classic.model | cut -d':' -f2 | sed 's/ //g')
snap known --remote account-key public-key-sha3-384=${ACCOUNT_KEY} > ${R}/${SEED_DIR}/assertions/generic.account-key
snap known --remote account account-id=generic > ${R}/${SEED_DIR}/assertions/generic.account
# Create the seed.yaml: the manifest of snaps to install
# Runs outside the container
echo "snaps:" > ${R}/${SEED_DIR}/seed.yaml
for ASSERT_FILE in ${R}/${SEED_DIR}/assertions/*.assert; do
SNAP_NAME=$(grep "^snap-name" ${ASSERT_FILE} | cut -d':' -f2 | sed 's/ //g')
SNAP_REVISION=$(grep "^snap-revision" ${ASSERT_FILE} | cut -d':' -f2 | sed 's/ //g')
if [ "${SNAP_NAME}" == "core" ] || [ "${SNAP}" == "core16" ] || [ "${SNAP}" == "core18" ]; then
SNAP_CHANNEL="stable"
else
SNAP_CHANNEL="${SEED_CHANNEL}"
fi
# Classic snaps require a "classic: true" attribute in the seed file
if [[ $CLASSIC_SNAPS =~ $SNAP_NAME ]]; then
printf " - name: %s\n channel: %s\n classic: true\n file: %s_%s.snap\n" ${SNAP_NAME} ${SNAP_CHANNEL} ${SNAP_NAME} ${SNAP_REVISION} >> ${R}/${SEED_DIR}/seed.yaml
else
printf " - name: %s\n channel: %s\n file: %s_%s.snap\n" ${SNAP_NAME} ${SNAP_CHANNEL} ${SNAP_NAME} ${SNAP_REVISION} >> ${R}/${SEED_DIR}/seed.yaml
fi
done
cat ${R}/${SEED_DIR}/seed.yaml
fi
}
# Base installation (rootfs)
make_image_root() {
if [[ ! -e ${work_dir}/build.${FUNCNAME} ]]; then