Docker Registry Cleanup Cron runs as a docker container on the same machine as your v2 registry

• Only version v2 of the registry is supported
• Only docker version with the garbage-collect API supported

• CLEANISTRY_DOCKER_HOST_URL - Mandatory environment variable which helps set the private registry to be cleaned's URL e.g. dockerhub.company.com:5000
• CLEANISTRY_CATALOG_LIMIT - Catalog limit to be used while getting a the list of all images. Default is 50000
• CLEANISTRY_KEEP_LATEST_TAG - Should we ignore all images with the latest tag?
• CLEANISTRY_IMAGE_TAG_EXCEMPTION - true/false. Default is true just to save unwanted cleanups
• CLEANISTRY_IMAGE_TAG_EXCEMPTION_LIST_API - API to fetch the image tag excemption list
• CLEANISTRY_IMAGE_TAG_EXCEMPTION_LIST - List of excepmted tags of images
• CLEANISTRY_MAX_IMAGE_LIFETIME - Default lifetime is 720 hours
• CLEANISTRY_RUN_SCHEDULE - Default schedule is @daily
• CLEANISTRY_RUN_ON_START - Should the cleanup be run once before doing it in schedule
• CLEANISTRY_GARBAGE_COLLECT_COMMAND - Default command is docker exec registry registry garbage-collect /etc/docker/registry/config.yml

docker run -d \
    -e CLEANISTRY_DOCKER_HOST_URL="dockerhub.company.com:5000" \
    -e CLEANISTRY_CATALOG_LIMIT=5000 \
    -e CLEANISTRY_IMAGE_TAG_EXCEMPTION=true \
    -e CLEANISTRY_IMAGE_TAG_EXCEMPTION_LIST_API=releasecandidates.company.com/yourapiToFetchRCs \
    -v /var/run/docker.sock:/var/run/docker.sock \
    sreeharimohan/cleanistry