Alarms management with Elasticsearch and Kibana
I have no experience with it myself, but Elastalert (http://elastalert.readthedocs.io/en/latest/elastalert.html) sounds like what you need (for the alarms/threshold part)

But besides that, it sounds like your interested in monitoring. In my opinion ELK is not a classic monitoring tool (more: data collection, data processing and data visualization). You should take a look at Icinga2 (https://www.icinga.com/products/icinga-2/) which can can be configured highly dynamical and is compatible with nagios plugins