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volume-backup

An utility to backup and restore docker volumes.

Note: Make sure no container is using the volume before backup or restore, otherwise your data might be damaged.

Backup

Syntax:

docker run -v [volume-name]:/volume -v [output-dir]:/backup --rm loomchild/volume-backup backup [archive-name]

For example:

docker run -v some_volume:/volume -v /tmp:/backup --rm loomchild/volume-backup backup archive1

will archive volume named some_volume to /tmp/archive.tar.bz2 archive file.

Restore

  • Note: This operation will delete all contents of the volume
  • Note: The volume to be restored needs to be created first (docker volume create <volume>)

Syntax:

docker run -v [volume-name]:/volume -v [output-dir]:/backup --rm loomchild/volume-backup restore [archive-name]

For example:

docker run -v some_volume:/volume -v /tmp:/backup --rm loomchild/volume-backup restore archive1

will clean and restore volume named some_volume from /tmp/archive.tar.bz2 archive file.

Wrapper scripts

bin/backup.sh and bin/restore.sh are little wrapper scripts that simplify invocation and also check for existing/in-use volumes and act accordingly.