Feature request: Expose metrics in the Prometheus format

[andrewhowdencom]

This is looks like exactly what I was looking for; I got pointed to it by asyncho. I will spin it up in a cluster later today, but am curious: Would you consider adding Prometheus metrics to the Daemon? Prometheus provide a python library (https://github.com/prometheus/client_python), and Kubernetes supports the prometheus format quite well (https://github.com/google/cadvisor/blob/master/docs/application_metrics.md)

I could also look at doing a PR for this, if it's something that you'd accept / help me with (I don't really know python).

[miracle2k]

Sure. I don't really know anything about Prometheus, but I would be happy to accept pull requests, and help as far as I am able.

[andrewhowdencom]

Loovely. I deployed this in a cluster as a test this morning; I will need to know when it goes wrong / doesn't backup as expected (due to developer derps someowhere). I will try to get time to do this in the coming weeks.