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#!/bin/bash
set -x
S3_ROOT=/Users/gbougeard/REGISTRY/data
DIR_REPOSITORIES=docker/registry/v2/repositories
DIR_TAGS=_manifests/tags
DIR_REVISIONS=_manifests/revisions
DIR_BLOBS=docker/registry/v2/blobs
PATH_REPOSITORIES=${S3_ROOT}/${DIR_REPOSITORIES}
rm -rf ./total
for IMAGE in $(ls -1 ${PATH_REPOSITORIES}); do
PATH_TAGS=${S3_ROOT}/${DIR_REPOSITORIES}/${IMAGE}/${DIR_TAGS}
PATH_REVISIONS=${S3_ROOT}/${DIR_REPOSITORIES}/${IMAGE}/${DIR_REVISIONS}
PATH_BLOBS=${S3_ROOT}/${DIR_BLOBS}
rm -f ./${IMAGE}-hash2delete
touch ./${IMAGE}-hash2delete
for tag in $(ls -1 ${PATH_TAGS}); do
echo "Tag ${tag}"
image_hash=$(cat ${PATH_TAGS}/${tag}/current/link | sed 's|sha256:||')
echo "Current hash is ${image_hash}"
index_hashes=$(ls -1 ${PATH_TAGS}/${tag}/index/sha256 | grep -v ${image_hash})
if [ -z "${index_hashes}" ];then echo "No hash to clean";continue;fi
echo "-----------------------"
nb_hash_to_delete=$(echo ${index_hashes} | wc -w)
echo "There are ${nb_hash_to_delete} hashes to delete"
for hash in ${index_hashes}; do
echo "Deleting index hash ${PATH_TAGS}/${tag}/index/sha256/${hash}"
#rm -rf ${PATH_TAGS}/${tag}/index/sha256/${hash}
echo "Deleting revision hash ${PATH_REVISIONS}/sha256/${hash}"
#rm -rf ${PATH_REVISIONS}/sha256/${hash}
jq -r '.config.digest' "${PATH_BLOBS}/sha256/${hash:0:2}/$hash/data" | sed 's|sha256:||' >> ./${IMAGE}-hash2delete
jq -r '.layers[].digest' "${PATH_BLOBS}/sha256/${hash:0:2}/$hash/data" | sed 's|sha256:||' >> ./${IMAGE}-hash2delete
done
echo "=============================="
done
sort ${IMAGE}-hash2delete | uniq > ${IMAGE}-hash2delete
rm -f ./${IMAGE}-path2delete
for hash in $(cat ${IMAGE}-hash2delete); do
echo "${PATH_BLOBS}/sha256/${hash:0:2}/$hash" >> ./${IMAGE}-path2delete
done
if [ ! -f ./${IMAGE}-path2delete ];then echo "Nothing to clean";continue;fi
echo "$(du -hc $(cat ./${IMAGE}-path2delete) | tail -n1 | cut -f1) ${IMAGE}" >> ./total
done
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