Flapjack 是一个灵活的监控通知路由系统，可处理：
路由警告 (determining who should receive alerts based on interest, time of day, scheduled maintenance, etc)
警告统计 (with per-user, per media summary thresholds)
标准运维任务 (setting scheduled maintenance, acknowledgements, etc)
Flapjack 用于如下场景：
You want to identify failures faster by rolling up your alerts across multiple monitoring systems.
You monitor infrastructures that have multiple teams responsible for keeping them up.
Your monitoring infrastructure is multitenant , and each customer has a bespoke alerting strategy.
You want to dip your toe in the water and try alternative check execution engines like Sensu, Icinga, or cron in parallel to Nagios.
