clean a docker registry

docker-registry-cleanup.sh

#!/bin/bash

############################################################
# Limpa 'docker registry' (últimas 2 imagens ficam)
############################################################

# esse carinha depende do https://github.com/dominictarr/JSON.sh

REGISTRY_URL=${1:-http://localhost:8082}
REGISTRY_DATA_VOLUME=${2:-/var/www/docker-registry-data}
IMAGES_TO_KEEP=${3:-2}

for image in $(curl -X GET ${REGISTRY_URL}/v2/_catalog -s | JSON.sh  | grep '"repositories",' | cut -d'"' -f4); do
    echo $image | grep uai
    if [ $? -eq 0 ]; then
        for tag in $(ls -1 ${REGISTRY_DATA_VOLUME}/docker/registry/v2/repositories/${image}/_manifests/tags/ | sort -V | head -n -2); do
            sha=$(cat ${REGISTRY_DATA_VOLUME}/docker/registry/v2/repositories/${image}/_manifests/tags/${tag}/current/link)
            echo TCHAU $image $tag $sha
            curl -sk -XDELETE ${REGISTRY_URL}/v2/${image}/manifests/${sha}
        done
    fi
done

docker exec -it registry registry garbage-collect -d /etc/docker/registry/config.yml > /var/log/uai-docker_cleanup.log
docker exec -it registry registry garbage-collect /etc/docker/registry/config.yml