Like all other xo-server plugins, it can be configured directly via
the web interface, see [the plugin documentation](https://xen-orchestra.com/docs/plugins.html).

### `Xo#sendIcinga2Status({ status, message })`

This xo method is called to send a passive check to icinga2 and change the status of a service.
It has two parameters:

- status: it's the service status in icinga2 (0: OK | 1: WARNING | 2: CRITICAL | 3: UNKNOWN).
- message: it's the status information in icinga2.