With this patch you can specify a ProxyJump for prepare-iaas-ubuntu,
prepare-iaas-debian and addhost. Example:
./prepare-iaas-debian 89.47.191.7 hj
./addhost -b -n node1.extern.drive.test.sunet.se -p hj -- 89.47.191.7
where hj is a host defined in my .ssh/config suitable for a proxyjump
to the host in question.
This makes it easier to use ip addresses for these scripts which might
be neccessary if dns takes a while to propagate.
Now ubuntu also uses the updated way of preparing iaas instances like
debian did before, actually the debian scripts have been remade to also
handle ubuntu so we use a common code path.
Usage (what scripts to call) stay the same, but the underlying
operations takes less logins to complete.
* Log in as few times as possible to not require a lot if yubikey
keypresses
* Make sure en_US.UTF-8 is present
* Replace `rm -rf` with userdel command
* Make sure the debian account is actually deleted
* Remove locale related warnings when running script from macOS