Updated for Poller v2.0!
UniFi Sites: Prometheus Dashboard
Every controller has at least one site, so this should be one of the first dashboards you install. This dashboard displays detailed information for Network Sites found in a UniFi controller.
UniFi Poller is a small Golang application that runs on Windows, FreeBSD, macOS, Linux or Docker. The application opens a web port and when prometheus polls for data it translates the UniFi controller API metrics to Prometheus exported metrics.
Ubiquiti makes networking devices like switches, gateways (routers) and wireless access points. They have a line of equipment named UniFi that uses a controller to keep stats and simplify network device configuration. This controller can be installed on Windows, macOS and Linux. Ubiquiti also provides a dedicated hardware device called a CloudKey that runs the controller software.