fluent-plugin-prometheus : A fluent plugin that collects metrics and exposes for Prometheus. ( https://github.com/fluent/fluent-plugin-prometheus/ )
prometheus-client : A suite of instrumentation metric primitivesthat can be exposed through a web services interface ( https://github.com/prometheus/client_ruby/ )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a phackerlay
For Paludis use this rsync : rsync://gentoo.zugaina.org/phackerlay-portage
If you have a problem : ycarus(-at-)zugaina.org