module velia-alarms {
    yang-version 1.1;
    namespace "http://czechlight.cesnet.cz/yang/velia-alarms";
    prefix ve-al;

    import ietf-alarms {
        prefix al;
    }

    revision 2022-07-12 {
        description
          "Initial version.";
    }

    identity velia-alarm {
        base al:alarm-type-id;
    }

    identity systemd-unit-failure {
        base velia-alarm;
    }

    identity sensor-alarm {
        base velia-alarm;
        description "Abstract base for hardware sensor related alarms.";
    }

    identity sensor-missing-alarm {
        base sensor-alarm;
        description "Alarm to model that sensor is missing.";
    }

    identity sensor-nonoperational {
        base sensor-alarm;
        description "Sensor is set as nonoperational.";
    }

    identity sensor-threshold-crossing-alarm {
        base sensor-alarm;
        description "Abstract base for sensor threshold crossing.";
    }

    identity sensor-low-value-alarm {
        base sensor-threshold-crossing-alarm;
        description "Sensor value is too low.";
    }

    identity sensor-high-value-alarm {
        base sensor-threshold-crossing-alarm;
        description "Sensor value is too high.";
    }
}