Save and Load All Docker Images

images.sh

#!/bin/bash

case "${1}" in
"save")
    # dump image tags so they can be restored later
    echo "saving tags to image-tags.txt"
    docker images | sed '1d' | awk '{print $1 " " $2 " " $3}' > allimages-tags.txt

    # save all images to a single tar
    echo "saving images to allimages.tar"
    docker save $(docker images -q) -o allimages.tar
    ;;
"load")
    echo will load
    exit 1
    # load all images
    # this may take a while depending on the size and number of images
    echo "loading allimages.tar"
    docker load -i allimages.tar

    # restore original image tags
    echo "restoring tags"
    while read REPOSITORY TAG IMAGE_ID
    do
        echo "== Tagging $REPOSITORY $TAG $IMAGE_ID =="
        docker tag "$IMAGE_ID" "$REPOSITORY:$TAG"
    done < allimages-tags.txt
    ;;
*)
    echo "usage: ${0} [save|load]"
    exit 1
    ;;
esac