[feature] Prepend a prefix to all metrics

[artherd42]

A meaningful prefix, e.g. cloudprober_, would help to distinguish the cloudprober metrics from other metrics. It should be prepended to all stats, automatically.

[manugarg]

Is this request specifically for prometheus surfacer? To avoid breaking existing deployments, we can actually make it an option, rather than doing it automatically.

[tklovett]

👍 for this request – finding and understanding a metric called total or success in Prometheus's auto-completion is challenging. This is especially true for new team members who were not involved in getting Cloudprober set up initially.

[manugarg]

Feature has been added to the HEAD now. Metrics prefix can be changed by having the following in cloudprober config:

surfacer {
  type: PROMETHEUS

  prometheus_surfacer {
    metrics_prefix: "cloudprober_"
  }
}

[manugarg]

Released in v0.10.3.