That'd be a challenge alright. One thing to consider is having each owner run their own Prometheus so that they can take advantage of all it's features, though

That'd be a challenge alright. One thing to consider is having each owner run their own Prometheus so that they can take advantage of all it's features, though it's a harder sell than "just push over here". http://www.boxever.com/push-vs-pull-for-monitoring http://www.boxever.com/push-vs-pull-for-monitoring looks at other bits of the push vs. pull question.