Explore a comprehensive conference talk from Ubuntu Summit 2022 detailing two years of production experience with Juju and Charmed OpenStack. Gain insights into deployment best practices, day-to-day operations, and lessons learned. Discover the benefits of Juju for OpenStack and Ceph upgrades, the importance of understanding charms, and managing the Juju controller as a critical component. Learn about writing custom machine charms and integrating network switches into the Juju model. Delve into topics such as GPU PCI passthrough, Ceph tuning, CPU governor optimization, and backup strategies. This 29-minute presentation by Johan Hallbäck offers valuable knowledge for those working with or considering Juju and Charmed OpenStack in production environments.