ICSHWI-9071 Added indicator to show IOC is running plus some runtime stats
Creates a file in /run/ioc@iocname/running
after iocInit
(to make sure that the IOC is really running).
Keeps the last 5 run's runtime length (in seconds) and exit code in a csv file (/run/ioc@iocname/stats
). This can be used in exporters to detect rapid restarts for example.
The directory /run/ioc@iocname
is created and deleted by systemd
so it is not preserved between systemd service sessions