We created an integration of icinga2 notifications with slack, using native NotificationCommand and just one dependency: curl. The cool thing is, you have it as a debian distribution ready for you to use from your icinga2 instance.

You can find it on github: https://github.com/nisabek/icinga2-slack-notifications#insta...

And icinga2 exchange website https://exchange.icinga.com/richardhauswald/icinga2-slack-no...

We would love to get feedback from you!