A compose file can now contain a volume which uses a different driver
from the default one; local.
Change-type: patch
Signed-off-by: Rich Bayliss <rich@balena.io>
This change also makes sure that in the application-manager workflow we
pass around instances of the Volume class, rather than just the config.
Change-type: patch
Signed-off-by: Cameron Diver <cameron@balena.io>