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diff --git a/content/blog/docker/migrate-data-volume.md b/content/blog/docker/migrate-data-volume.md new file mode 100644 index 0000000..4f54394 --- /dev/null +++ b/content/blog/docker/migrate-data-volume.md @@ -0,0 +1,15 @@ +--- +title: "Migrate a data volume" +linkTitle: "Migrate a data volume" +date: 2018-01-30 +description: > + How to migrate a data volume +--- + +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 is here a fun way to do it with docker and pipes : +{{< highlight sh >}} +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 - ' " +{{< /highlight >}} |