docker run -p $HOST_PORT:$CONTAINER_PORT/$PROTOCOL $IMAGE_NAME
docker run -p 8080:8000/tcp jupyterhub/jupyterhub
docker images
docker search $REPOSITORY_NAME/$IMAGE_NAME:$TAG
docker search library/hello-world:latest
docker pull $REPOSITORY_NAME/$IMAGE_NAME:$TAG
docker save $REPOSITORY_NAME/$IMAGE_NAME:$TAG > $EXPORTED_IMAGE_NAME.tar
docker load < $EXPORTED_IMAGE_NAME.tar