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#!/bin/bash
set -eu
if ! which docker > /dev/null; then
echo docker not found.
exit 1
fi
if ! docker images | grep debian | grep stable > /dev/null; then
echo debian:stable not found. Please extract backup with custom image.
exit 2
fi
BACKUP_FILE="/tmp/$(date +%Y-%m-%d)-taler-backup.tar"
if test -a $BACKUP_FILE; then
echo "Backup file $BACKUP_FILE exists already, please move it and run the script again."
exit 3
fi
# 'chown' should still help rootful runs to
# have the TAR owned by the user invoking the command.
docker run \
-v /tmp:/tmp \
-v hybrid_talerdata:/taler-data \
-v hybrid_talerlogs:/taler-logs \
-it debian:stable \
/bin/bash -c "tar --no-same-owner --no-same-permissions -c -f ${BACKUP_FILE} /taler-data /taler-logs" > /dev/null
# /bin/bash -c "tar --no-same-owner --no-same-permissions -c -f ${BACKUP_FILE} /taler-data /taler-logs && chown $(id --user):$(id --group) ${BACKUP_FILE}" > /dev/null
echo Backup at: ${BACKUP_FILE}
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