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LOGGING_LEVEL: (Optional) Logging level needed. Can beDEBUG,INFO,WARNINGorCRITICAL. (Default:INFO)DOCKER_REGISTRY_URL: (Required) Docker registry HTTPS URL that needs to be scanned. (e.g.https://docker-registry.example.com:12345/path/to/repository/)DOCKER_REGISTRY_CA_FILE: (Optional) PEM format file of CA.DOCKER_IMAGES_FILTER: (Optional) REGEX pattern used to filter Docker images. (Default:.*)DOCKER_TAGS_FILTER: (Optional) REGEX pattern used to filter Docker image tags. (Default:.*)IMAGE_LIST_NBR_MAX: (Optional) Maximum number of Docker images that needs to be fetch from Docker registry. (Default:1000)HTTPS_CONNECTION_TIMEOUT: (Optional) Docker registry client HTTPS connection timeout. (Default:3)FORCE: (Optional) This option is useful only if you give "dangerous" regex patterns such as '.*'. (Default:NO)DRY_RUN: (Optional) This option make sure you can run the cleaner without really delete Docker images. It is enabled by default to avoid mistakes. (Default:YES)