This is already done for you. With the default templates, the subject line has a prefix like [FIRING:2] or [RESOLVED].
However if your alerts are being grouped, and let's say one alert resolves, then you might then get an E-mail with subject [FIRING:1] which shows one alert still firing and one alert resolved. That is: a single E-mail may contain both "DOWN" and "UP" notifications. You can change the templates if you like. There is documentation here <https://prometheus.io/docs/alerting/latest/notifications/>. The default subject line is created here <https://github.com/prometheus/alertmanager/blob/main/template/default.tmpl#L4> and you can override this with your own template string. But to be honest, I've switched off all "resolved" notifications now. There's a good explanation why here: https://www.robustperception.io/running-into-burning-buildings-because-the-fire-alarm-stopped In short: the fact that an alert condition has ceased is not an excuse to your staff to say "oh that's OK, the problem has gone; I can ignore it now". There *was* a problem and it *still* needs to be investigated. You can use an alert to open a ticket, but you should close the ticket manually. This document is also *very* well worth reading: https://docs.google.com/document/d/199PqyG3UsyXlwieHaqbGiWVa8eMWi8zzAn0YfcApr8Q/edit On Thursday, 18 November 2021 at 08:54:08 UTC [email protected] wrote: > Hi Team, > > I want to set the subject line in alertmanager based on send_resolved > status. I mean before resolving the alert subject line should be "DOWN" and > after resolving the alert subject line should be set to "UP". > > Could someone please guide me how to achieve this or provide me syntax > please? > > Best Regards, > Sriman > -- You received this message because you are subscribed to the Google Groups "Prometheus Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/prometheus-users/5456859c-2934-4144-9b25-4cfc7827f205n%40googlegroups.com.
