fix(metrics): don't collect internal Telegraf metrics #3193
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By default, Telegraf operator adds an
internal
input which collects Telegraf's own metrics. In addition, the Prometheus output exposes process and gocollector metrics. We don't want either of these enabled by default.Unfortunately this behaviour of Telegraf operator can only be disabled via a flag passed on the command line, and the Helm Chart doesn't allow changing these. So instead we drop the metrics in the output.
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