Each service, when requesting access to the Supervisor API, will
now get an individual key which can be scoped to specific resources.
In this iteration the default scope will be to the application that
the service belongs to.
We also have a `global` scope which is used by the cloud API when in
managed mode.
Change-type: patch
Signed-off-by: Rich Bayliss <rich@balena.io>
We were treating the database class as a singleton, but still having to pass
around the db instance. Now we can simply require the db module and have
access to the database handle.
Change-type: patch
Signed-off-by: Cameron Diver <cameron@balena.io>
