How to copy Docker images from one host to another without using a repository

Question

How do I transfer a Docker image from one machine to another one without using a repository, no matter private or public?

I create my own image in VirtualBox, and wh

Answer 1

For a flattened export of a container's filesystem, use;

docker export CONTAINER_ID > my_container.tar

Use cat my_container.tar | docker import - to import said image.