Base 18 snap for snapd

This is a base snap for snapd that is based on Ubuntu 18.04

Building locally

To build this snap locally you need snapcraft. The project must be built as real root.

$ sudo snapcraft

Testing locally

Once built you can boot it for testing inside qemu and spread. You will need additional tool (see tests/lib/README.md for details). In order to prepare an image for either exploratory manual tests or for spread tests run this command:

$ make update-image

With this available you can either run: spread -debug -v or make -C tests/lib just-boot, depending on what you want to do. The interactive (just boot) test should allow you to move to VT7 where a root shell awaits.