Experiment: deploy lxd-demo-server

[alban]

See:
https://linuxcontainers.org/lxd/try-it/
https://github.com/lxc/lxd-demo-server

Then, access the server on port 8080.

It does not work yet: it reports the error "An unknown error occured.
Please try again in a few minutes."

/cc @stgraber

[stgraber]

Running lxc monitor may be a good way to see what's going on while trying to spawn a session.
Could it be connectivity issue preventing the base image from downloading maybe?

I actually ran lxd-demo-server this afternoon as part of porting it to a more recent base snap and it worked fine for me here, so should be something simple :)