add persistent logging to the app

[sposerina]

Have logging write out to file in addition to console on a volume for persistence

[c-simpson]

I'm trying to add a persistent volume with the v2.28 release.
If I didn't mess up the configuration, it should be available at /var/lib/server/data

[c-simpson]

Err... v2.31 when it's deployed.

[urirot]

@c-simpson @sposerina
this should close the issue:
#446

[kfettich]

Stale issue