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#!/bin/sh
# container-tools - Manage systemd-nspawn containers
#
# Description: example for automated Debian base system container image creation
# Requires: debootstrap plzip xz-utils
# Usage: sudo ./container-images.sh
set -e
ARCHITECTURES="amd64 i386"
DISTRIBUTIONS="stretch sid"
MIRROR="https://deb.debian.org/debian"
INCLUDE="dbus"
COMPRESSIONS="gz lz xz"
VERSION="$(date +%Y%m%d)"
for DISTRIBUTION in ${DISTRIBUTIONS}
do
for ARCHITECTURE in ${ARCHITECTURES}
do
SYSTEM="debian-${DISTRIBUTION}-${VERSION}_${ARCHITECTURE}"
debootstrap --arch=${ARCHITECTURE} --include=${INCLUDE} ${DISTRIBUTION} ${SYSTEM} ${MIRROR}
chroot "${SYSTEM}" apt-get clean
rm -f "${SYSTEM}/etc/apt/apt.conf.d/01autoremove-kernels"
rm -f "${SYSTEM}/etc/hostname"
echo "" > "${SYSTEM}/etc/machine-id"
rm -f "${SYSTEM}/etc/resolv.conf"
rm -f "${SYSTEM}/var/lib/systemd/catalog/database"
for COMPRESSION in ${COMPRESSIONS}
do
case "${COMPRESSION}" in
gz)
TAR_OPTIONS="--gzip"
;;
lz)
TAR_OPTIONS="--lzip"
;;
xz)
TAR_OPTIONS="--xz"
;;
esac
echo "Creating ${SYSTEM}.system.tar.${COMPRESSION}"
tar ${TAR_OPTIONS} -cf "${SYSTEM}.system.tar.${COMPRESSION}" "${SYSTEM}"
echo "Creating ${SYSTEM}.system.tar.${COMPRESSION}.sha512"
sha512sum "${SYSTEM}.system.tar.${COMPRESSION}" > "${SYSTEM}.system.tar.${COMPRESSION}.sha512"
echo "Creating ${SYSTEM}.system.tar.${COMPRESSION} symlink"
ln -sf "${SYSTEM}.system.tar.${COMPRESSION}" "$(echo ${SYSTEM}.system.tar.${COMPRESSION} | sed -e "s|${VERSION}|current|")"
echo "Creating ${SYSTEM}.system.tar.${COMPRESSION}.sha512 copy"
sed -e "s|${VERSION}|current|" "${SYSTEM}.system.tar.${COMPRESSION}.sha512" > "$(echo ${SYSTEM}.system.tar.${COMPRESSION}.sha512 | sed -e "s|${VERSION}|current|")"
done
rm -rf "${SYSTEM}"
done
done
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