Connector to power control ipmi server via mqtt
IPMI_HOST= IPMI_USERNAME= IPMI_PASSWORD= IPMI_WAIT=timeout in seconds to rerun statistics, default to 30
MQTT_HOST= MQTT_PORT=default to 1883 MQTT_USERNAME= MQTT_PASSWORD= MQTT_PREFIX=Topic prefix, default to ipmi/{MQTT_HOST}
- Power state is published to {MQTT_PREFIX}/power_on (retained)
- Power can be set via topic {MQTT_PREFIX}/set_power_soft (1/0)
- Power state can be set via topic {MQTT_PREFIX}/set_power_state (0/1/2/3/4/5)