Actually, "monitoring warnings" is less meaningful in some cases.

For example in the case of tls, it talks about emails from Digicert,
which is not per se a monitoring warning. Similarly, the Ganeti
documentation talks about I/O overloads and other conditions that are
not necessarily raised by the monitoring system, but could be raised
by our "human nagioses" (e.g. "humans" saying "this is slow!").

This reverts commit 85d5423f.

to the best of my knowledge...

"Pager" and "playbook" have specific meanings which are not obvious to
me. For example, we don't carry pagers and "playbooks" could be
ansible playbooks, but we don't carry those either.

I thought of naming this "Nagios warnings" but I figured I would be
more forward-compatible (in case we switch away from Nagios) and name
this "Monitoring".

This will tell us how much disk space a given instance uses, which is
useful next to the CPU/RAM stats. We push "status" at the end since it
seems more important (paradoxically): it seems things on the "edges"
are more "obvious".

Otherwise ipsec doesn't get up and verify fails.