148 lines
3.8 KiB
Django/Jinja
148 lines
3.8 KiB
Django/Jinja
#!/bin/bash
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BORGUSER="{{ backup_owner }}";
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RUNFOLDER="{{ backup_run_folder }}";
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TARGETFOLDER="{{ backup_storage }}";
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REPOLOCATION="{{ backup_location }}";
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ARCHIVENAME="{{ backup_app }}-$(date '+%s')";
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help (){
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echo "cloud_backup - backup and restore script on cloud with borg target v1.0 by L.Hahn.
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Usage: $0 COMMAND [ARCHIVENAME]
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COMMAND:
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- list List available archives in remote borg repository for your host.
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- backup Perform backup of your host and create a new archive in borg repository.
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- restore [ARCHIVENAME] Download backup from borg repository to your host and restore files.
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May turn off your application if still running.
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If no ARCHIVENAME is provided, the latest one based on timestamp is taken.
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IF ARCHIVENAME is provided, will try to download it; throws error if not found.
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";
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}
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### INDIVIDUAL TEMPLATE PART ###
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prework_backup () {
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{{ backup_script.prework_backup | indent( width=4) }}
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}
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postwork_restore () {
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{{ backup_script.postwork_restore | indent( width=4) }}
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}
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### SHARED TEMPLATE PART ###
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get_archives () {
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ARCHIVEIDS=$(
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sudo -H -u $BORGUSER bash -c '
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REPOLOCATION='$REPOLOCATION';
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export BORG_PASSPHRASE=$(cat {{ backup_home }}/.borg.key);
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borg list $REPOLOCATION' | grep {{ backup_app }} | sort -r);
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echo "$ARCHIVEIDS";
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}
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cloud_backup () {
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mkdir -p $TARGETFOLDER/$ARCHIVENAME;
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prework_backup;
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cd /;
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sudo -H -u $BORGUSER bash -c '
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TARGETFOLDER='$TARGETFOLDER';
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REPOLOCATION='$REPOLOCATION';
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ARCHIVENAME='$ARCHIVENAME';
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export BORG_PASSPHRASE=$(cat {{ backup_home }}/.borg.key);
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borg create -C lzma $REPOLOCATION::$ARCHIVENAME $TARGETFOLDER/$ARCHIVENAME';
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rm -rf $TARGETFOLDER/$ARCHIVENAME;
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}
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cloud_restore () {
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ARCHIVENAME=$1;
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ARCHIVEIDS=$(get_archives | cut -f 1 -d ' ');
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if [[ "${ARCHIVENAME,,}" == "latest" ]];
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then
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ARCHIVENAME=$(echo "$ARCHIVEIDS" | head -n 1);
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else
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if [[ "$ARCHIVEIDS" != *$ARCHIVENAME* ]];
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then
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echo "ERROR! Provided archivename '$ARCHIVENAME' is not part of the available archives! Aborting.";
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exit 1;
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fi
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fi
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mkdir -p $TARGETFOLDER/$ARCHIVENAME;
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chown -R $BORGUSER: $TARGETFOLDER
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cd /;
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sudo -H -u $BORGUSER bash -c '
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REPOLOCATION='$REPOLOCATION';
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ARCHIVENAME='$ARCHIVENAME';
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export BORG_PASSPHRASE=$(cat {{ backup_home }}/.borg.key);
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borg extract $REPOLOCATION::$ARCHIVENAME --list';
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postwork_restore;
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rm -rf $TARGETFOLDER/$ARCHIVENAME;
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}
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cloud_backup_delete () {
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ARCHIVENAME=$1;
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ARCHIVEIDS=$(get_archives | cut -f 1 -d ' ');
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if [[ "$ARCHIVEIDS" != *$ARCHIVENAME* ]];
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then
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echo "ERROR! Provided archivename '$ARCHIVENAME' is not part of the available archives! Aborting.";
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exit 1;
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fi
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sudo -H -u $BORGUSER bash -c '
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REPOLOCATION='$REPOLOCATION';
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ARCHIVENAME='$ARCHIVENAME';
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export BORG_PASSPHRASE=$(cat {{ backup_home }}/.borg.key);
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borg delete $REPOLOCATION::$ARCHIVENAME';
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}
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has_argument () {
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if [[ -z "$1" ]];
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then
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echo "Missing required paramter!";
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exit 1;
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fi
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}
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(
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flock -n 9 || {
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echo "BACKUP ALREADY RUNNING! ABORTING.";
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exit 1;
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}
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if [ $# = 0 ]; then
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help;
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exit 0;
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fi
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action=$1
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case $action in
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"list")
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get_archives;
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;;
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"backup")
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cloud_backup;
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;;
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"restore")
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has_argument $2;
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cloud_restore $2;
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;;
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"delete")
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has_argument $2;
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cloud_backup_delete $2;
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;;
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*)
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help;
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exit 0;
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;;
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esac
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echo ""
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) 9>/var/run/lock/cloud-backup.lock;
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