Variable for NetworkManager connectivity check interval

[everhardt]

The NetworkManager connectivity check interval is 3600 seconds by default. Changing that requires editing config.json. It would be great if this could be turned into a (Balena Cloud) variable, eg. BALENA_SUPERVISOR_NETWORK_MANAGER_CONNECTIVITY_CHECK_POLL_INTERVAL.

I don't think that the other NetworkManager connectivity check parameters (URL and response) are that relevant that they also need their own variable. Providing 0 for BALENA_SUPERVISOR_NETWORK_MANAGER_CONNECTIVITY_CHECK_POLL_INTERVAL could for example be interpreted as "do not do connectivity checks".

[alexgg]

Hi @everhardt thanks for the feedback - it's a totally valid request. All config.json variables are meant to be exposed via the supervisor/SDK/balenaCloud. In the meantime we have been using tools like configizer, which I suspect have just delayed this work getting done by providing a workaround.

[everhardt]

Thanks for the quick reply @alexgg! Probably superfluous to say: using the configizer on a fleet of devices that normally have the VPN disabled and aren't always online is still quite a hassle to do and keep track of.