Logging daemon

Features:

• add support for logging for systemd daemon

Minimalize metrics exposed, simplify refactor design

Description:

this release simplify a lot the metrics we expose, with the use of labels. A lot of previous metrics were an antipattern.

• refactor design and metrics

Devel-base

0.0.1 Version

Working exporter with some hacks and devel metrics.
It works already with core design more or less set