I know there is a way to update a single snap by downloading it locally with
snap download which is described in: Install .snap files offline already. The question is, are there any solutions available to update multiple snaps.
The use-case I am faced is our customers are deployingof devices to environments without internet access. I know there is the concept of a snap-proxy which could be used as an alternative. But in my I case some of the service engineers are running a Windows laptop and dealing with snap proxies is above their technical level
My rough idea is to bundle the snaps + in a zip file. This zip contains all required snaps +
.assert files and a script which performs the installation in the correct ordering.
The question is, are there any similar or more advanced approaches available to achieve this? Installing snaps with
--dangerous is not an option.