amtool silence add
amtool silence add <label=value>… --duration=<time> --author=<name> --comment=<why> [--alertmanager.url=<url>]
Risk: Careful
What it does
Mutes matching alerts until the time runs out. Prints the silence ID.
When to use it
Planned work, or while you are already fixing it. Always give a reason and a short time.
Example
$ amtool --alertmanager.url=http://localhost:9093 silence add alertname=QueueTooLong --duration=2h --author=aina --comment="Fixing the queue"No calls about the queue for 2 hours: Aina is on it.
$ amtool --alertmanager.url=http://localhost:9093 silence queryList the silences: who, why, and when they end.
$ amtool --alertmanager.url=http://localhost:9093 silence expire <id>End a silence early, when the work is done.
Learn it in: Alertmanager: route, group, silence · Official docs