Prometheus exporter that publishes size information to Prometheus, by reading xattributes.
CEPH_USER: User to connect to ceph cluster (default:admin).CEPH_CONFIG: Config to connect to ceph cluster (default:/etc/ceph/ceph.conf).TELEMETRY_PORT: Port of the ceph exporter (default::9128).TELEMETRY_PATH: URL path for surfacing metrics to Prometheus (default:/metrics).RECURSE_MIN_SIZE: Minimum size of a directory to be included recursivelyRECURSE_MAX_LEVELS: Maximum levels to recurse