Quattor vs Uyuni

Quattor is free, open-source Linux software for automating installation, configuration, and lifecycle management across clusters, farms, grids, and clouds. Its self-hosted architecture uses a configuration-management database server, an Automated Installation Infrastructure server, and managed clients; the two servers may share one machine. AII plugins handle DHCP and PXE setup and create Kickstart files for Enterprise Linux-derived systems. Client components retrieve and validate profiles, then run configuration components. Quattor validates system descriptions before deployment, and its Pan compiler converts declarative configuration into nested structures including XML and JSON. Modular interfaces allow replacement implementations and site-specific tools, with components for core and grid services. The site describes deployments ranging from tens of systems to more than 30,000. It supports Enterprise Linux, including Rocky Linux and AlmaLinux, and is licensed under Apache 2.0 and the EU DataGrid Software License. Community users provide development and support.

Uyuni is an open-source configuration and infrastructure management tool for administering many machines. It deploys patches and packages through assignable software channels and repositories, and provisions hardened operating-system templates to bare metal, virtual machines, and containers. Its server acts as a Salt Master, registering and managing Salt clients. Documented clients include SUSE Linux Enterprise, openSUSE, Red Hat Enterprise Linux, CentOS, Oracle Linux, Ubuntu, Debian, Amazon Linux, AlmaLinux, and Raspberry Pi OS. These systems can be on-premises or in public, private, hybrid, and multi-cloud environments. Uyuni checks public security-patch status, matches subscriptions, and runs OpenSCAP compliance checks. Role-based access limits users to authorized actions and resources. Prometheus and Grafana integration provides server, proxy, and client monitoring. VMware vSphere hosts can be inventoried through the VMware API. Uyuni is available through web, API, Linux, and self-hosted deployments, with drift detection, policy as code, and compliance reporting.