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readme.md |
BorgBackup in docker
guide by example
purpose
Backups.
files and directory structure
/home
└── ~
├── borg
│ ├── 🗁 docker_backup
│ ├── 🗋 borg_backup.sh
│ └── 🗋 borg_backup.log
│
└── docker
├── container-setup #1
├── container-setup #2
└── ...
The setup
BorgBackup is installed directly on the host system.
A script is created that backs up the entire docker directory locally.
Cronjob is executing the script daily.
-
Install BorgBackup
-
Create a new borg repo
mkdir ~/borg
borg init --encryption=none ~/borg/docker_backup
-
The script
borg_backup.sh
#!/bin/bash # INITIALIZE THE REPO WITH THE COMMAND: # borg init --encryption=none ~/borg/my_backup # THEN RUN THIS SCRIPT # ----------------------------------------------- BACKUP_THIS='/home/bastard/docker /etc' REPOSITORY='/home/bastard/borg/docker_backup' LOGFILE='/home/bastard/borg/borg_backup.log' # ----------------------------------------------- NOW=$(date +"%Y-%m-%d | %H:%M | ") echo "$NOW Starting Backup and Prune" >> $LOGFILE # CREATES NEW ARCHIVE IN PRESET REPOSITORY borg create \ $REPOSITORY::'{now:%s}' \ $BACKUP_THIS \ \ --compression zstd \ --one-file-system \ --exclude-caches \ --exclude-if-present '.nobackup' \ --exclude '/home/*/Downloads/' \ # DELETES ARCHIVES NOT FITTING KEEP-RULES borg prune -v --list $REPOSITORY \ --keep-daily=7 \ --keep-weekly=4 \ --keep-monthly=6 \ --keep-yearly=0 \ echo "$NOW Done" >> $LOGFILE echo '------------------------------' >> $LOGFILE # --- USEFULL SHIT --- # setup above ignores directories containing '.nobackup' file # make '.nobackup' imutable using chattr to prevent accidental removal # touch .nobackup # chattr +i .nobackup # in the repo folder, to list available backups: # borg list . # to mount one of them: # borg mount .::1584472836 ~/temp # to umount: # borg umount ~/temp # to delete single backup in a repo: # borg delete .::1584472836
the script must be executabe -
chmod +x borg_backup.sh
-
automatic execution
cron job, every day at 3:00
crontab -e
0 3 * * * /home/bastard/borg/borg_backup.sh
Remote backup
Backing up borg repo to a network share or cloud using rclone
To be continued