Use Prometheus API to collect PowerDNS Recursor stats #110
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Third time's the charm... follow-up of #108 and #109
The approach using the powerdns_recursor input plugin for Telegraf didn't work, because it's broken with newer pdns versions:
Let's go a different way: now we do it just like with dnsdist, using the Pormetheus metrics input plugin and querying pdns' /metrics endpoint.
I tested this on webfrontend05 and it works fine.