azagramac/volume-backup repository overview

⁠Backup to standard output

This avoids mounting a second backup volume and allows to redirect it to a file, network, etc.

Syntax:

docker run -v [volume-name]:/volume --rm azagramac/volume-backup:1.0 backup - > [archive-name]

For example:

docker run -v some_volume:/volume --rm azagramac/volume-backup:1.0 backup - > some_archive.tar.bz2

will archive volume named some_volume to some_archive.tar.bz2 archive file.

WARNING: This method should not be used under PowerShell on Windows as no usable backup will be generated.

⁠Backup to a file

Syntax:

docker run -v [volume-name]:/volume -v [output-dir]:/backup --rm azagramac/volume-backup:1.0 backup [archive-name]

For example:

docker run -v some_volume:/volume -v /tmp:/backup --rm azagramac/volume-backup:1.0 backup some_archive

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

⁠Restore

WARNING: This operation will delete all contents of the volume

⁠Restore from standard input

This avoids mounting a second backup volume.

Note: Don't forget the -i switch for interactive operation.

Syntax:

cat [archive-name] | docker run -i -v [volume-name]:/volume --rm azagramac/volume-backup:1.0 restore -

For example:

cat some_archive.tar.bz2 | docker run -i -v some_volume:/volume --rm azagramac/volume-backup:1.0 restore -

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

⁠Restore from a file

Syntax:

docker run -v [volume-name]:/volume -v [output-dir]:/backup --rm azagramac/volume-backup:1.0 restore [archive-name]

For example:

docker run -v some_volume:/volume -v /tmp:/backup --rm azagramac/volume-backup:1.0 restore some_archive

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