> For the complete documentation index, see [llms.txt](https://viva.gitbook.io/project/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://viva.gitbook.io/project/cloud-native/prometheus/cortex/zu-jian/alertmanager.md).

# Alertmanager

Alertmanager组件是对Prometheus Alertmanager的进一步拓展，支持了多租户的特性，需要依赖配置数据库读取各个租户的alertmanager配置和告警消息模板。接收Ruler的告警消息并向租户发送告警。