constellation/image/upload/pack.sh
Paul Meyer 106b738fab ci: format shellscripts
Signed-off-by: Paul Meyer <49727155+katexochen@users.noreply.github.com>
2022-11-11 15:53:57 +01:00

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#!/usr/bin/env bash
# Copyright (c) Edgeless Systems GmbH
#
# SPDX-License-Identifier: AGPL-3.0-only
set -euo pipefail
shopt -s inherit_errexit
# Show progress on pipes if `pv` is installed
# Otherwise use plain cat
if ! command -v pv &> /dev/null; then
PV="cat"
else
PV="pv"
fi
pack() {
local cloudprovider=$1
local unpacked_image=$2
local packed_image=$3
local unpacked_image_dir
unpacked_image_dir=$(mktemp -d)
local unpacked_image_filename
unpacked_image_filename=disk.raw
local tmp_tar_file
tmp_tar_file=$(mktemp -t verity.XXXXXX.tar)
cp "${unpacked_image}" "${unpacked_image_dir}/${unpacked_image_filename}"
case ${cloudprovider} in
gcp)
echo "📥 Packing GCP image..."
tar --owner=0 --group=0 -C "${unpacked_image_dir}" -Sch --format=oldgnu -f "${tmp_tar_file}" "${unpacked_image_filename}"
"${PV}" "${tmp_tar_file}" | pigz -9c > "${packed_image}"
rm "${tmp_tar_file}"
echo " Repacked image stored in ${packed_image}"
;;
azure)
echo "📥 Packing Azure image..."
truncate -s %1MiB "${unpacked_image_dir}/${unpacked_image_filename}"
qemu-img convert -p -f raw -O vpc -o force_size,subformat=fixed "${unpacked_image_dir}/${unpacked_image_filename}" "${packed_image}"
echo " Repacked image stored in ${packed_image}"
;;
*)
echo "unknown cloud provider"
exit 1
;;
esac
rm -r "${unpacked_image_dir}"
}
if [[ $# -ne 3 ]]; then
echo "Usage: $0 <cloudprovider> <unpacked_image> <packed_image>"
exit 1
fi
pack "${1}" "${2}" "${3}"