Created
December 8, 2015 17:56
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Backup/Save all Docker Images to a compressed file
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docker images | tail -n +2 | grep -v "none" | awk '{printf("%s:%s\n", $1, $2)}' | while read IMAGE; do | |
echo $IMAGE | |
filename="${IMAGE//\//-}" | |
filename="${filename//:/-}.docker-image.gz" | |
docker save ${IMAGE} | pigz --stdout --best > $filename | |
done |
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This script uses
pigz
(http://zlib.net/pigz/), the multi-processor version ofgzip
. Of course you can use simplegzip
instead.