A handy feature of the Alertmanager is that almost all notification fields are templatable. This can be used to route emails based on labels.
A blog on monitoring, scale and operational Sanity
How often have you gotten alerted about disk space going over some threshold, only to discover it'll be weeks or even months until the disk actually fills? Noisy alerts are bad alerts. The new
predict_linear() function in Prometheus gives you a way to have a smarter, more useful alert.