www/content/blog/docker/migrate-data-volume.md

title	date	description	tags
Migrate a docker data volume	2018-01-30	How to migrate a data volume between two hosts	docker

The command

Here is how to migrate a data volume between two of your hosts. A rsync of the proper /var/lib/docker/volumes subfolder would work just as well, but here is a fun way to do it with docker and pipes :

export VOLUME=tiddlywiki
export DEST=10.1.0.242
docker run --rm -v $VOLUME:/from alpine ash -c "cd /from ; tar -cpf - . " \
| ssh $DEST "docker run --rm -i -v $VOLUME:/to alpine ash -c 'cd /to ; tar -xfp - ' "