Docker Volume Backup

A simple script which creates tarballs from docker volumes and restores them.

Usage

Backup a single volume

./dvbackup.sh backup <volume_name> <path/to/tarball.tar>

Creates a tarball from the contents of the volume.

Restore a single volume

./dvbackup.sh restore <path/to/tarball.tar> <volume_name>

Restores the tarball into the volume. This is destructive, all old contents will be removed from the volume. The volume must already exist.

Backup all named volumes

./dvbackup.sh backup_all

Creates backups from all volumes which do not only contain the character set [0-9a-f].

This command will output a <volume_name>.tar file for every found volume in the current working directory.

Restore volumes

./dvbackup.sh restore_all [volume.tar...]

Restores all given tarballs into their respective volumes. The volumes must already exist and the operation is destructive in the same way as the restore operation. The default behaviour is to ask before continuing, this can be overridden by setting DVB_I_KNOW_WHAT_I_DO=y. Volumes can be created implicitly by setting DVB_CREATE_VOLUME=y.