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Data volumes are designed to persist data, its life cycle is independent of containers, Docker does not automatically delete data volumes after the container is deleted, and there is no mechanism such as garbage collection to deal with data volumes that are not referenced by any containers. If you need to remove the data volume while deleting the container. You can use the docker rm-v command when deleting a container. Unowned data volumes may take up a lot of space and it can be troublesome to clean up.

List all data volumes

Docker volume ls

Use-- filter dangling=true to filter data volumes that are not in use

Docker volume ls-filter dangling=true

Create a data volume that can be set to,-- name,--path,--mode. Or you don't have to.

Have all the automatically generated parameters

Docker volume create

Delete a data volume

Docker volume rm

The data volume being used by the container cannot be deleted, and the bound mount cannot be deleted.

Docker volume ls-filter dangling=true

Docker volume ls-- filter dangling=true | grep local | awk'{print $2}'| xargs docker volume rm

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