helm: Add tetragon_pod label to metrics via ServiceMonitor #2828
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Prometheus Operator by default adds "pod" label, representing the metrics exporter pod, to all scraped metrics. However, Tetragon exposes events metrics with "pod" label, which represents the process that generated events, not Tetragon pod. This label is not overridden if using the default ServiceMonitor (with "honorLabels: true") - that's good. However, it still can be useful to know which Tetragon pod exported the metric. Let's add "tetragon_pod" label to metrics scraped via default ServiceMonitor.