Periodic Point Publish

[Shiny380]

Publish point values (same as COV event) for all points periodically

May not be needed. Discussion required

• Nice to have so everything stays up to date...

  • MQTT by default will retain the latest value for every topic and send this on ANY connection reset meaning periodic publishing could prevent us from finding any bugs in any of the services

• Need way to tell if services go down / haven't received update for long time

  • Periodic pushes might prevent this from being detectable depending on how it's implemented

    • global service level would not allow for detection

    • source_driver level would allow for detection (EventServiceBase._internal_timeout_thread will need tweaking for multiple timeouts. i.e. normal poll loop and point re-publish loop)

      • i.e. driver publishes points on a loop for example 60 point = 1 hour loop = 1 point every minute

    • This will create unnecessary histories unless unless handled for (might be hacking and over complicated to handle)

  • REST endpoint might be better way to detect service status