Prometheus Alertmanager

Overview

Configure Alertmanager to handle alerts from Prometheus, route them to the correct receivers, group related alerts, suppress duplicates, and manage silences. Covers routing trees, receiver configuration, inhibition rules, and high-availability setup.

Instructions

Task A: Basic Alertmanager Configuration

Secrets stay in files that Alertmanager reads at start and reload (*_file options), not inside the YAML. Use matchers (label-matcher strings) in routes and inhibit rules: match, match_re, source_match and target_match are deprecated and only kept for compatibility. The first matching child route wins unless it sets continue: true, so list specific routes (payments) first.