Alert Manager Routing

AlertManager is a tool for managing alerts: deduplicating, grouping, and routing them to the right teams via Slack, email, PagerDuty, webhooks, etc. It's the glue between detection (Prometheus) and action (human responders or automated remediation). Advanced routing: conditional rules (route high-severity to on-call team, low-severity to Slack), inhibition (suppress low-priority alerts if critical ones exist), silencing (temporary mutes), and deduplication (don't spam the same alert 1000 times).