Script to save all images from a docker-compose.yml file

gistfile1.txt

#!/bin/bash

mkdir -p out

for img in `grep image $1| sed -e 's/^.*image\: //g'`;
do
    cleanname=${img/\//-}
    tag=`docker images | grep $img | awk '{print $2}'`
    echo "Exporting image: $img, tag:$tag ($cleanname)..."
    docker save $img -o out/$cleanname.tar
    ls -lah out/$cleanname.tar
    tar -czvf out/$cleanname.tgz out/$cleanname.tar
    rm -rf out/$cleanname.tar
done

Compose V2 offers --images to list all images (even the ones build by the compose file).

#!/bin/bash

for img in $(docker compose config --images); do
  images="$images $img"
done

docker save -o services.img $images