Files
docker-backup-gpg-s3/backup.sh
Matthias Bilger 71abb6ab65
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using sh not bash
2019-12-28 17:18:13 +01:00

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#!/bin/sh
BACKUP_DATE=$(date +"%Y-%m-%d")
BACKUP_BASENAME=$S3_BUCKET_NAME$BACKUP_DATE.tar
SKIP_XZ=${ONLY_TAR:-0}
month_day=`date +"%d"`
if [ $SKIP_XZ -ne 0 ]; then
TAR_PARAM=
BACKUP_FILENAME=daily_$BACKUP_BASENAME
BACKUP_FILENAME_MONTHLY=monthly_$BACKUP_BASENAME
else
TAR_PARAM=-J
BACKUP_FILENAME=daily_$BACKUP_BASENAME.xz
BACKUP_FILENAME_MONTHLY=monthly_$BACKUP_BASENAME.xz
fi
healthchck_fail(){
if [ -n $HEALTHCHECK_URL ]; then
curl -X POST --data $1 --retry 3 $HEALTHCHECK_URL/fail --silent --output /dev/null
exit 1
fi
}
healthchck_start(){
if [ -n $HEALTHCHECK_URL ]; then
curl -X POST --data $1 --retry 3 $HEALTHCHECK_URL/start --silent --output /dev/null
fi
}
healthchck_ok(){
if [ -n $HEALTHCHECK_URL ]; then
curl -X POST --data $1 --retry 3 $HEALTHCHECK_URL --silent --output /dev/null
fi
}
healthchck_start "Starting Backup"
cd /backup
echo "make archive"
FROMPATH='./'
FROMSIZE=$(du -sk ${FROMPATH} | cut -f 1);
CHECKPOINT=$(echo ${FROMSIZE}/50 | bc);
echo "Estimated: [==================================================]";
echo -n "Progess: [";
(tar -c --record-size=1K --checkpoint="${CHECKPOINT}" --checkpoint-action="ttyout=>" -f - "${FROMPATH}" | bzip2 > "${BACKUP_FILENAME}") || healthchck_fail "TAR Failed"
echo "]"
cd /
echo " done"
RECIPIENT=$(echo "$GPG_RECIPIENT" | sed "s/,/ --recipient /")
echo "encrypting"
gpg --trust-model always --enable-progress-filter --output ~/$BACKUP_FILENAME.gpg --encrypt --recipient $RECIPIENT ~/$BACKUP_FILENAME || healthchck_fail "Encryption Failed"
rm ~/$BACKUP_FILENAME
echo "uploading"
aws s3 cp ~/$BACKUP_FILENAME.gpg s3://$S3_BUCKET_NAME/$BACKUP_FILENAME.gpg --storage-class STANDARD_IA || healthchck_fail "Upload Failed"
rm ~/$BACKUP_FILENAME.gpg
echo "done"
# On first month day do
if [ "$month_day" -eq 1 ] ; then
echo "make monthly backup"
aws s3 cp s3://$S3_BUCKET_NAME/$BACKUP_FILENAME.gpg s3://$S3_BUCKET_NAME/$BACKUP_FILENAME_MONTHLY.gpg --storage-class DEEP_ARCHIVE || healthchck_fail "failed to create monthly backup"
fi
healthchck_ok "Success"