After building this you can treat the container the same as the duplicity application.
docker run --rm --volumes-from volume-container-name-or-id blixtra/docker-dup {options} {path-in-container-to-backup} {destination}
Running without arguments will print the duplicity version in the container.
docker run --rm --volumes-from volume-container-name-or-id blixtra/docker-dup
currently prints...
duplicity 0.6.23
Content type
Image
Digest
sha256:674451467…
Size
72.9 MB
Last updated
almost 11 years ago
docker pull blixtra/docker-dup