Previously we looked at how to use the Prometheus Alertmanager with Pagerduty. The Alertmanager supports more than just sending pages, there's integrations with popular chat applications too. Let's look at how to integrate with Slack.
The rewrite of the Alertmanger had its first release earlier this week after a beta period. While still providing the core functionality of deduplicating alerts, silencing, inhibiting and sending notifications, there's several major changes from the previous version.
Prometheus offers integrations with systems like PagerDuty, Email and Hipchat for alert notifications - but what if you want do something that's not supported out of the box? The Alertmanager's generic web hook has got you covered.