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78 lines
2.4 KiB
Bash
78 lines
2.4 KiB
Bash
#!/bin/bash
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# Cronjob needs to be on one line, spaced out for example/ in-case running cronjob from a script that just runs the below
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# e.g. 0 0 * * * /home/nathan/scripts/backup/borg/directory_backup.sh \
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# -d "/home/nathan/AA/A /home/nathan/AA/C" \
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# -b /home/nathan/testBack \
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# -r pi2 \
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# -R ~/backups/pi1/AA
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while getopts d:b:r:R: flag
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do
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case "${flag}" in
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d) DIR=${OPTARG};; # Directory to backup
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b) BACKUP_DIR=${OPTARG};; # Where the backup is on local host
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r) REMOTE=${OPTARG};; # user@remote or alias (from SSH config), prefer to use alias, as it can deal with port differences
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R) REMOTE_DIR=${OPTARG};; # Location of remote backup i.e. /backup/borg/HOSTNAME/docker (then /npm, /vaultwarden, etc.)
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esac
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done
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# As this is using borg, DIR can be passed as "~/dir2 ~/dir2" rather than a single directory #
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# /var/spool/cron/crontabs # Cron backup
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# Function(s)
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borg_backup (){
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if [ ! -d "$BACKUP_DIR" ]; then
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mkdir -p $BACKUP_DIR
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borg init --encryption=none $BACKUP_DIR
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fi
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export BORG_REPO=$BACKUP_DIR
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borg create ::{hostname}-{now} $DIR
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}
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borg_prune () {
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# Keep last 8 hours of backups, last 3 days, and last 2 weeks. LESS for local to save storage
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borg prune \
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--glob-archives '{hostname}-*' \
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--keep-hourly 8 \
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--keep-daily 3 \
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--keep-weekly 2
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# Then compact (actually clear up the disk space of the files removed via prune)
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borg compact
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}
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offsite_borg () {
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export BORG_REPO=$REMOTE:$REMOTE_DIR
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borg create ::{hostname}-{now} $DIR # Backup with of the directory itself (seperate borg repo)
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}
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offsite_prune () {
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export BORG_REPO=$REMOTE:$REMOTE_DIR
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# Prune on server, this may take ages though so I'm not sure about this...
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borg prune \
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--glob-archives '{hostname}-*' \
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--keep-hourly 24 \
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--keep-daily 7 \
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--keep-weekly 4 \
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--keep-monthly 3
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# Then compact (actually clear up the disk space of the files removed via prune)
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borg compact
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}
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# Script
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# LOCAL
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borg_backup
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borg_prune # Run prune bash script
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# Offsite
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if (ssh $REMOTE ls $REMOTE_DIR 2>/dev/null);
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then
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offsite_borg
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else
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# Doesn't exist, create, and init repo first
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ssh $REMOTE mkdir -p $REMOTE_DIR
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borg init --encryption=none $REMOTE:$REMOTE_DIR
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offsite_borg
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fi
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offsite_prune # Seperate, for docker script i.e. backup each container in loop, and prune after ALL containers looped and back up
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# so to not keep the containers down for excessively long amounts of time
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