Docker volume backup

An utility to easily backup and restore your Docker volumes

Configuration

You need to change two variables: BACKUPS_DIR and BACKUP_FLAG in the head of .sh file

BACKUPS_DIR: The directory where the backup goes

BACKUP_FLAG: The label you put on volumes you want to backup (if you dont specify specific volume to backup in command)

Backup

Backup all volumes tagged by a label

In docker-compose.yml:

version: '3.3'

services:
   db:
     image: mysql:5.7
     volumes:
       - db_data:/var/lib/mysql
     ...
volumes:
    db_data:
      labels:
        backup_flag: true

For example:

bash backup-volume-docker.sh backup

Backup all volumes filled in the config variable BACKUP_VOLUMES

BACKUP_VOLUMES="volume1 volume2"

For example this config will backup volume1 and volume2:

bash backup-volume-docker.sh backup -v CONFIG

Backup specific volume

For example:

bash backup-volume-docker.sh backup -v myvolume_example

Restore

If you want to restore a backup

For example:

bash backup-volume-docker.sh restore -v myvolume_example /mybackupdir/my_old_backup.tar.bz2

List backups

For example to list all backups:

bash backup-volume-docker.sh list-backups

For only one volume:

bash backup-volume-docker.sh list-backups -v myvolume_example

Thanks,

Author: Valentin DEVILLE