filebeat

In Kubernetes module there are multiple occasions that we add a new field in a common.MapStr without any proper error handling.

Example is https://github.com/elastic/beats/blob/main/metricbeat/module/kubernetes/container/data.go#L125. but this can be seen in all module metricsets.

A proper error handling for this case would be a [debug](elastic/beats#30181 (comment)_

Feature idea, add beat info metrics from the stats endpoint /

{
  "beat": "pubsubbeat",
  "hostname": "pubsub-sidekiq-inf-gstg",
  "name": "pubsub-sidekiq-inf-gstg",
  "uuid": "FOO",
  "version": "7.5.1"
}

Would make a metrics like this:

pubsubbeat_build_info{version="7.5.1"} 1
pubsubbeat_beat_info{beat_name="pubsub-sidekiq-inf-gstg",uuid="FOO",} 1