feat: Confluent Cloud OTeL metrics

[jcountsNR]

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[jcountsNR]

@alanwest , just checking back in. I updated the wording to say OpenTelemetry instead of OTel, and I also added some pre-requisites of setting up confluent cloud and creating a cluster.

[changliu-wk]

When we tried to scrape metrics by using opentelemetryCollector, then export them to NewRelic, all go_gc_duration_seconds metrics TimeStamp stays the same with the pod starting time, have you seen the same issue? Thanks!

[jcountsNR]

@alanwest @jack-berg I made the suggested updates to the directory structure and changed the suggested authentication method to use TLS keys instead of a variable login.

[jcountsNR]

When we tried to scrape metrics by using opentelemetryCollector, then export them to NewRelic, all go_gc_duration_seconds metrics TimeStamp stays the same with the pod starting time, have you seen the same issue? Thanks!

I think you are in the wrong place, this PR is only for confluent metrics. What service are you trying to scrape the metrics from?