docker save -o ubuntu.latest.tar ubuntu:latest
This command will save the
ubuntu:latest image as a tarball archive in the current directory with the name
ubuntu.latest.tar. This tarball archive can then be moved to another host, for example using
rsync, or archived in storage.
Once the tarball has been moved, the following command will create an image from the file:
docker load -i /tmp/ubuntu.latest.tar
Now it is possible to create containers from the
ubuntu:latest image as usual.