Is it possible and if so what is the best way to do it? I heard a friend talking about bitnami and so on. Please advice
You can save you image to tar and copy with USB and loaded it back.
Save your mage: https://docs.docker.com/engine/reference/commandline/save/
docker save image_name > filename.tar
Load image from Tar(No internet access required): https://docs.docker.com/engine/reference/commandline/load/#examples
docker load --input filename.tar