.
apiVersion: &quot;config.istio.io/v1alpha2&quot;
kind: prometheus
metadata:
  name: handler
  namespace: istio-system
spec:
  param:
    metrics:
    - name: request_count
      instance_name: requestcount.metric.istio-system
      kind: COUNTER
      label_names:
      - source_service
      - source_version
      - destination_service
      - destination_version
  connection:
    address: localhost:8090
---
</code></pre><table class=message-fields><thead><tr><th>Field</th><th>Type</th><th>Description</t