Currently the Ubuntu builds are stuck waiting for an answer on what
timezone to use. That could be fixed, but generally the way to do these
types of installs is to set the DEBIAN_FRONTEND environment variable to
`noninteractive` so that debconf just chooses a default. This is what
debootstrap does, for instance. I tested installing tzdata on a local
focal container this way and it just chooses `Etc/UTC` as the timezone.
As far as I can tell we're not gating on this right now. From
a quick glance, it looks like Debian stable has `libsodium-dev`
but only Ubuntu eoan does which we're not testing right now.
I think tests/ should be just that, ci/ is separate. Also rename
the files to include "travis" since that's what we use them
for right now.
Closes: #843
Approved by: jlebon
Dan Nicholson
Colin Walters
Denis Pynkin
Robert Fairley
Simon McVittie