Pycom-firmware-updater Use of the system-files interface

store-requests
2

Hey @ahmad,

I see you have requested:

config-hosts:
    interface: system-files
    write:
    - /etc/hosts
    - /var

But this is not quite correct. system-files is typically used to provide read-only access to system configuration directories created by a non-snap version of an application now running from an equivalent snap.

Does pycom-firmware-updater need write access to the entire /var directory? Could you please explain what exactly the snap need to read/write so we can help you getting the correct declaration?

Also, for writing to /etc/hosts you should plug the network-control interface instead https://github.com/snapcore/snapd/blob/master/interfaces/builtin/network_control.go#L168