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How to create docker volume from directory

№ 11114 В разделе "Sysadmin" от October 6th, 2020,
В подшивках: ,

Typically its not useful because you can directly mount directory to containers, but… who knows? May be you just want it.

For example, you have directory on your hard drive and want to move files inside docker volume:

root@boroda:/tmp/future-volume# find .
.
./somedir
./somedir/config.yaml
./file1
./test.txt
./myfile2

Just run move (or copy) command in busybox container:

docker run --rm -it \
    -v my-docker-volume:/destination \
    -v /tmp/future-volume:/source \
    busybox \
    /bin/sh -c "mv /source/* /destination/ && find /destination"

This command mounts (or create if not exists already) volume, mount directory on disk and move files from disk to volume.

After move completion you’ll see tree on moved files:

/destination
/destination/somedir
/destination/somedir/config.yaml
/destination/file1
/destination/test.txt
/destination/myfile2

That’s all, easy.

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