Is the volume deleted when the container is stopped?

When a Docker container is stopped, the volume is not automatically deleted. Volumes are separate data storage objects that exist independently of the container's lifecycle.

If you want to delete a volume, you need to delete it explicitly, for example, using the command:

docker volume rm <volume_name>

Or when deleting a container using the command:

docker rm -v <container_id>

The -v flag will delete the volumes associated with the container, but by default, volumes are preserved so that data is not lost when stopping or deleting a container.