Zincati

Zincati is an auto-update agent for Fedora CoreOS hosts.

It works as a client for Cincinnati and rpm-ostree, taking care of automatically updating/rebooting machines.

Features:

Agent for continuous auto-updates, with support for phased rollouts
Configuration via TOML dropins and overlaid directories
Multiple update strategies for finalization/reboot
Local maintenance windows on a weekly schedule for planned upgrades
Internal metrics exposed over a local endpoint in Prometheus format
Logging with configurable priority levels
Support for complex update-graphs via Cincinnati protocol (with rollout wariness, barriers, dead-ends and more)
Support for cluster-wide reboot orchestration, via an external lock-manager

cluster reboot graph