#howto rename #docker volume

docker-volume-migration.md

Say, folder with docker-compose files was renamed or we do merging volumes etc. Then we shall rename docker volume. Because docker natively does not support renaming, we shall create it, then copy data, then inspect new volume, test and delete old one at the end

Volumes:

docker volume ls

DRIVER              VOLUME NAME
local               andrius_mysql     <-- old
local               databases_mysql   <-- new

Copyng data with permissions and user owenship info, at the end sh will be executed to inspect data:

docker run -ti --rm \
  -v andrius_mysql:/db/old \
  -v databases_mysql:/db/new \
  alpine sh -c 'apk --update --no-cache add rsync mc && rsync -avzrP /db/old/ /db/new && sh'