Create a mailing list for metrics-specific Nagios alerts
nusenu suggests publishing Nagios alerts on a mailing list.
Sounds good to me!
How about metrics-alerts@lists.torproject.org (does not exist yet)?
For now we'd only send Onionoo warnings there, which is the only Nagios warning that we have right now anyway. And in the future we'd add more notifications based on publicly available data (like CollecTor's index.json).
But we'd have to be careful with sending warnings there that are based on internal logs. For example, problems with sanitizing bridge descriptors shouldn't go to that list.
If this makes sense, I'll kick off the process for creating a list.