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Closes #4 with new param LAST_VALID_TAGS_COUNT #5

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Closes #4 with new param LAST_VALID_TAGS_COUNT #5

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68 changes: 50 additions & 18 deletions registry_cleanup.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -13,8 +13,10 @@
: ${DOCKER_REGISTRY_NAME:=registry_web}
: ${DOCKER_REGISTRY_CONFIG:=/etc/docker/registry/config.yml}
: ${DRY_RUN:=false}
: ${LAST_VALID_TAGS_COUNT:=3}

EXCLUDE_TAGS="^(\*|master|develop|latest|stable|(v|[0-9]\.)[0-9]+(\.[0-9]+)*)$"

EXCLUDE_TAGS="^(\*|master|develop|latest|stable)$"
REPO_DIR=${REGISTRY_DIR}/docker/registry/v2/repositories

# In doubt fall back to dry mode
Expand Down Expand Up @@ -54,18 +56,51 @@ remove_old_tags() {
done
}

remove_tag_path() {

local tag_path=$1
if $DRY_RUN; then
echo "To be Deleted >> rm -rf ${tag_path}"
else
TAG_COUNT=$((TAG_COUNT+1))
rm -rf ${tag_path}
echo "Deleted: $tag"
fi

}

remove_image_tags() {
local repo=$1
local image=$2
local dir="$REPO_DIR/$repo/$image/tags/"

echo "- Cleanup image $repo/$image"
# check if dir exists
[ ! -d "$dir" ] && return 0

local all_tags=$(ls -r $dir)
local all_version_tags=($(echo $all_tags | sed 's/[^0-9. ]*//g'))
local last_valid_tags=(${all_version_tags[@]:0:$LAST_VALID_TAGS_COUNT})
local tag_path
for tag_path in $REPO_DIR/$repo/$image/_manifests/tags/*; do

for tag_path in $REPO_DIR/$repo/$image/tags/*; do
local tag=$(basename $tag_path)

# Do not cleanup excluded tags
if ! [[ $tag =~ $EXCLUDE_TAGS ]]; then

if [[ " ${last_valid_tags[*]} " =~ " ${tag} " ]]; then
# if the tag is valid keep it
continue;
fi

local regex_numeric='[^0-9]+$'

# numeric tag will remove it
if ! [[ $tag =~ $regex_numeric ]] ; then
remove_tag_path $tag_path
continue;
fi

# get timestamp from tag folder
local timestamp=$(date -d @$(stat -c %Y $tag_path) +%Y%m%d%H%M%S)

Expand All @@ -75,13 +110,7 @@ remove_image_tags() {

# check if the tag is old enough to delete
if ((now - timestamp > $MAX_AGE_SECONDS)); then
if $DRY_RUN; then
echo "To be Deleted >> rm -rf ${tag_path}"
else
echo "Deleted: $tag"
TAG_COUNT=$((TAG_COUNT+1))
rm -rf ${tag_path}
fi
remove_tag_path $tag_path
fi
fi
done
Expand Down Expand Up @@ -149,10 +178,12 @@ print_summary(){

[ ${FAILED_COUNT} -gt 0 ] && echo "${FAILED_COUNT} manifests failed. Check for curl errors in the output above."

echo "Disk usage before and after:"
echo "${DF_BEFORE}"
echo
echo "${DF_AFTER}"
if (($TAG_COUNT > 0)); then
echo "Disk usage before and after:"
echo "${DF_BEFORE}"
echo
echo "${DF_AFTER}"
fi
fi
}

Expand All @@ -172,10 +203,11 @@ start_cleanup(){
[ "$CURL_INSECURE" == "true" ] && CURL_INSECURE_ARG=--insecure

#verify registry url
if ! _curl -m 3 ${REGISTRY_URL}/v2/ > /dev/null; then
echo "Could not contact registry at ${REGISTRY_URL} - quitting"
exit 1
fi
# if ! _curl -m 3 ${REGISTRY_URL}/v2/ > /dev/null; then
# echo "Could not contact registry at ${REGISTRY_URL} - quitting"
# exit 1
# fi
#

DF_BEFORE=$(df -Ph)

Expand Down