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sysboss/Docker_Images_Cleanup_ByTag.md

Created April 27, 2017 12:47
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  1. sysboss created this gist Apr 27, 2017.
    21 changes: 21 additions & 0 deletions Docker_Images_Cleanup_ByTag.md
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    #!/bin/bash
    #
    # Keeps latest X tags of every Docker Image

    KEEP_IMAGES_BACK=2

    echo Retrieving local images available

    # get all images
    IMAGES=$(docker images | sort | awk '{print $1}' | uniq | grep -v "<none>")

    echo Cleaning old tags...

    for i in $IMAGES; do
    COUNT=$(docker images | grep "$i " | wc -l)

    if [[ $COUNT -ge 3 ]]; then
    echo IMAGE $i has $COUNT tags
    docker images | grep "$i " | tail -$(($COUNT-$KEEP_IMAGES_BACK)) | awk '{print $1 ":" $2}' | xargs docker rmi
    fi
    done