I'm trying to setup an Alert in Kibana that will send a Slack notification. Our application is running on Heroku and uses the Elasticsearch plugin there. The documentation that I've read for setting up Slack has console commands and talks about editing an elasticsearch.yml file: https://www.elastic.co/guide/en/elastic-stack-overview/current/actions-slack.html#configuring-slack
How does one do these things when the Elasticsearch is not local, i.e. is running through Heroku.