Report OS and Node Red Service Uptime to MQTT
Report the uptime of the server OS and the uptime of the Node Red service in seconds via MQTT.
This is useful to detect instability, or enforce periodic hardware reboot. If you're running in a failover cluster you can check if you're failing over between nodes, if a node is unstable.
I just wanted to have some feedback that a "restart node red" function I had was actually working.
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