Katello is an open source tool consisting of several projects that provides patch, release and lifecycle management for TheForeman as a plugin. This allows repositories to be synchronized and stored in certain software volumes. These software stands allow the various lifecycles (e.g. dev > test > prod) to be supplied with different patchlines in an infrastructure. After connecting the servers, the list of all installed packages can be viewed, as well as package can be installed or removed. In addition, Errata information can be used and matched to host package lists to illustrate which hosts are affected by current CVE-listed vulnerabilities-and patched them from the surface Can. Katello is also part of the entertainment product orcharhino.