Critical bugs blocking 1.17.0

[Curtis Hovey-Canonical]

Andrew's branch has indeed fixed the bootstrap private IP on HP.

CI now encounters this bug doing deployments using 1.17.0. In the
past, we saw this bug only happening with upgrades.
    upgrade-juju on HP cloud broken in devel
    https://bugs.launchpad.net/bugs/1255242

I cannot deploy mysql on HP using 1.17.0. I see the same behaviours
reported by CI. While there is certainly a regression in behaviour,
the faullt might be the mysql charm. It might be doing something that
has worked by more by accident than by design.