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Manual garbage collector for gitlab registry, it removes old revisions that are not referenced by any tag
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#!/bin/bash | |
BASE_PATH=/var/opt/gitlab/gitlab-rails/shared/registry/docker/registry/v2/repositories | |
DRY_RUN=0 | |
KEEP_LAST_IMAGES=10 | |
RUN_GARBAGE_COLLECTOR=0 | |
GITLAB_CTL_COMMAND=`which gitlab-ctl` | |
if [ ! -x "${GITLAB_CTL_COMMAND}" ]; then | |
echo "Missing gitlab-ctl command" | |
exit 1 | |
fi | |
while (( "$#" )); do | |
case "$1" in | |
"-b" | "--base-path") | |
BASE_PATH=$2 | |
shift | |
;; | |
"-r" | "--run-gc") | |
RUN_GARBAGE_COLLECTOR=1 | |
;; | |
"-d"|"--dry-run") | |
DRY_RUN=1 | |
;; | |
"-k"|"--keep") | |
if ! ( echo $2 | grep -q '^[0-9]\+$') || [ $2 -eq 0 ]; then | |
echo "Invalid value for keep last images '$2'" | |
exit 1 | |
fi | |
KEEP_LAST_IMAGES=$2 | |
shift | |
;; | |
"-h"|"--help") | |
echo "Usage: ${0} [options]" | |
echo "Options:" | |
echo -e "\t-k NUM, --keep NUM" | |
echo -e "\t\tKeeps last NUM revisions, except current tags" | |
echo | |
echo -e "\t-d, --dry-run" | |
echo -e "\t\tEnables dry run, no changes will be made" | |
echo | |
echo -e "\t-b, --base-path" | |
echo -e "\t\tSets base path of Gitlab Registry repository storage" | |
echo | |
echo -e "\t-r, --run-gc" | |
echo -e "\t\tStarts garbage collector after revision removal" | |
exit 0 | |
;; | |
*) | |
echo "Unknown argument: $1" | |
exit 1 | |
;; | |
esac | |
shift | |
done | |
IFS=$'\n' | |
used_hashes=`mktemp` | |
marked_hashes=`mktemp` | |
for repository in `find ${BASE_PATH} -mindepth 2 -maxdepth 2 -type d | sed "s#${BASE_PATH}/##"`; do | |
for tag_hash in ${BASE_PATH}/${repository}/_manifests/tags/*/current/link; do | |
cat "${tag_hash}" | cut -d':' -f2; | |
done > "${used_hashes}" | |
echo "Removing revisions of $repository:" | |
ls -t ${BASE_PATH}/${repository}/_manifests/revisions/sha256 | fgrep -vf "${used_hashes}" | tail -n+${KEEP_LAST_IMAGES} | tee ${marked_hashes} | |
if [ ${DRY_RUN} -ne 1 ]; then | |
cat ${marked_hashes} | sed "s#^#${BASE_PATH}/${repository}/_manifests/revisions/sha256/#" | xargs rm -rf | |
fi | |
done | |
rm ${used_hashes} | |
rm ${marked_hashes} | |
if [ ${DRY_RUN} -eq 0 -a ${RUN_GARBAGE_COLLECTOR} -eq 1 ]; then | |
"${GITLAB_CTL_COMMAND}" registry-garbage-collect | |
fi |
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