MindFlavor/prometheus_wireguard_exporter 2.0.0

Better Prometheus compliance

on GitHub

This release uses _Total as suffix for counters as it should be. It also changes how the latest handshake value is returned: before it was the number of seconds since the latest handshake. Now you get the UNIX timestamp as passed by wg. This should minimize the events written in Prometheus for non connected devices.

Closed #2 and #3.